Funding Business Operations During a Large Customer’s Insolvency (UK Guide 2026)

By Jodhbir Mehmi | Mehmi Financial Group

Published: 25 October 2026

If one of your largest customers enters administration or liquidation, your UK business may still qualify for working capital financing to cover payroll, suppliers, rent and other essential operating expenses. However, lenders will usually need to understand how the customer's failure affects your outstanding invoices, future revenue and ability to repay.

Depending on eligibility, financing options may include unsecured business loans, revolving credit facilities, business overdrafts, invoice finance against other creditworthy customers and asset-based lending.

Before borrowing, your company should also investigate whether unpaid invoices can be recovered through the insolvency process, an existing trade credit insurance policy or another legally available recovery route.

A customer entering insolvency can create two financial problems simultaneously.

First, the business may lose money owed for goods or services it has already supplied.

Second, it may lose future revenue from a customer that previously represented a substantial portion of its sales.

For example, a UK manufacturer might have £120,000 in unpaid invoices from a customer that has entered administration.

The manufacturer must continue paying employees, suppliers, HMRC and existing lenders even though those customer payments may no longer arrive as expected.

This can create a serious working capital shortage despite the business having performed profitably before the customer's failure.

The most important consideration is whether your business can continue generating enough cash from its remaining customers to meet its obligations and support any new borrowing.

This guide explains how UK companies can protect cash flow after a major customer's insolvency, how to recover unpaid invoices, which financing products may remain available and what lenders look for when assessing a business that has lost a significant customer.

It includes worked examples, funding calculations, eligibility requirements, creditor recovery procedures and practical strategies for reducing future customer concentration risk.

Can Your Business Get Funding After a Major Customer Goes Insolvent?

Yes. A customer's insolvency does not automatically prevent your business from obtaining commercial financing in the UK.

The outcome depends on your company's financial position after accounting for the lost income and any outstanding invoices that may not be recovered.

Some businesses remain financially viable despite losing a significant customer.

For example, a commercial cleaning company may lose one large contract but continue receiving reliable payments from several other customers.

A manufacturer may have sufficient alternative orders to sustain production, even if one customer fails.

A logistics company may be able to replace some lost transport volume using existing fleet capacity.

However, other businesses may depend so heavily on one customer that the loss creates a longer-term financial problem.

A lender may assess:

The amount owed by the insolvent customer.
The proportion of revenue previously generated by that customer.
Whether future contracts or orders have been cancelled.
Current business bank balances.
Revenue from remaining customers.
Existing loans and other financial obligations.
Available cash flow.
Whether trade credit insurance applies.
The potential recovery of unpaid invoices.
The company's ability to reduce costs.
Whether new borrowing can realistically be repaid.

The lender may also want an updated financial forecast that excludes uncertain payments from the insolvent customer.

A customer insolvency event is not necessarily a reason for automatic decline, but it can materially change how much financing your company can afford.

What Happens When a Major Business Customer Becomes Insolvent?

The consequences depend on the insolvency procedure and the contractual relationship.

In the UK, different insolvency procedures can affect whether a company continues trading, restructures its debts or closes.

Customer Enters Administration

Administration places a company under the control of an appointed administrator.

The administrator is a licensed insolvency practitioner responsible for pursuing the statutory objectives of the administration.

The company may continue trading, sell parts of the business or enter another restructuring or insolvency process.

According to GOV.UK's administration guidance, an administrator can manage the company's affairs and determine how its operations and contracts should proceed.

For suppliers, this creates an important distinction between outstanding debts from before administration and any properly authorised new supply arrangements.

What Happens to Existing Unpaid Invoices?

Invoices relating to goods or services supplied before administration may become claims within the insolvency process.

The supplier should establish whether those amounts are secured, covered by another legal right or treated as ordinary unsecured debts.

Payment is not guaranteed.

Can You Keep Supplying the Customer?

Potentially, but do not assume that continuing to supply on the original credit terms is commercially safe.

Before undertaking new work, confirm who is authorised to place orders and how the new supply will be paid for.

Obtain appropriate written instructions and payment terms from the authorised administrator or other relevant party.

The treatment of post-appointment obligations depends on the facts and applicable law.

Customer Enters Liquidation

Liquidation generally involves collecting and realising a company's assets and distributing the proceeds according to the applicable legal priorities.

A liquidator may be appointed to manage the process.

The company may stop trading, although particular activities can continue where necessary for the liquidation.

If your business is owed money, it may need to submit a formal creditor claim.

However, submitting a claim does not mean payment is guaranteed.

The amount eventually recovered depends on available assets, creditor priority and other circumstances.

Customer Enters a Company Voluntary Arrangement

A Company Voluntary Arrangement, or CVA, is a formal agreement through which an eligible company restructures its obligations to creditors.

A CVA can allow the business to continue trading while paying an agreed proportion of its debts over time.

According to GOV.UK, approval generally requires agreement from creditors representing at least 75% by value of the debts voted.

For suppliers, the important question is how the CVA treats their outstanding invoices and any future trading arrangements.

The customer may continue operating, but its repayment obligations can be altered by the approved arrangement.

Customer Is Struggling but Has Not Entered Formal Insolvency

A customer missing payments does not necessarily mean a formal insolvency procedure has begun.

The company might be experiencing temporary financial difficulties, negotiating with creditors or considering restructuring.

Before taking action, verify its actual status.

A missed payment and a formal administration are legally different circumstances.

Collection rights, contract terms and available remedies may also differ.

What Should You Do in the First 24–72 Hours?

When a large customer enters insolvency, the immediate priority is to establish the facts and protect your company's liquidity.

1. Verify the Customer's Insolvency Status

Check the legal name and company registration number of the customer.

Use the official Companies House register to review relevant company information.

You can also search insolvency notices through The Gazette.

GOV.UK confirms that Companies House and The Gazette can be used to investigate formal company insolvency proceedings.

Obtain the appointed administrator's or liquidator's details where available.

Do not rely solely on rumours, social media reports or an informal conversation with the customer's employees.

2. Identify All Money Owed

Prepare a complete schedule of outstanding invoices.

Include the invoice number, amount, issue date, contractual due date and whether the goods or services were delivered.

Identify any disputed amounts, credits or payments received.

For example, the company may discover that a customer owes:

£40,000 for completed work.
£25,000 for delivered products.
£15,000 for recently issued invoices.

The total outstanding exposure would be £80,000.

However, the legal treatment of the amounts may differ depending on the relevant delivery, invoicing and insolvency dates.

3. Review Any Undelivered Orders

Identify goods that have not yet been delivered and services that have not yet been completed.

Review contractual obligations before suspending performance.

The business should not automatically ship additional products on credit without understanding the customer's financial status.

However, stopping performance may have contractual consequences.

Seek appropriate legal advice where the position is unclear.

4. Notify Your Invoice Finance Provider

If the company uses factoring or invoice discounting, notify the provider promptly in accordance with the agreement.

A customer insolvency can affect the eligibility of outstanding invoices and the availability of the facility.

The company may also have an obligation to repay advances linked to particular unpaid debts.

The exact position depends on whether the facility is recourse or includes valid bad debt protection.

5. Contact Your Trade Credit Insurer

If the business has trade credit insurance, review the policy and notify the insurer according to its requirements.

Failure to follow policy conditions or notification deadlines can affect coverage.

Do not assume an insurance payout has been approved simply because the customer is insolvent.

6. Prepare a Short-Term Cash-Flow Forecast

Calculate how much unrestricted cash the company has available.

Then identify expected payments from customers that remain solvent.

Compare these receipts with essential upcoming obligations, including:

Payroll.
Supplier payments.
Rent and utilities.
PAYE and National Insurance.
VAT and other tax liabilities.
Existing business loan repayments.
Essential operating expenses.

Exclude uncertain insolvency recoveries from the immediate base-case forecast.

7. Review Supplier Payment Terms

Contact important suppliers before payment problems escalate.

Some may consider revised terms, partial payments or temporary adjustments.

Any change should be properly agreed.

Do not assume suppliers are required to extend credit.

8. Assess Whether Emergency Working Capital Is Necessary

After establishing the actual cash shortfall, consider whether financing is required.

The company should not automatically borrow the full amount owed by the insolvent customer.

Its real funding requirement may be lower or higher depending on cash reserves, ongoing operations and payment timing.

A disciplined response focuses on preserving cash, avoiding additional credit exposure and establishing a realistic funding requirement before taking on debt.

How Can You Recover Unpaid Invoices From an Insolvent Customer?

Recovery options depend on the applicable insolvency procedure, contractual rights and the creditor's legal position.

For many ordinary trade suppliers, an unpaid invoice becomes an unsecured creditor claim.

However, some creditors may have additional rights under valid security, retention-of-title arrangements or other contractual provisions.

Contact the Administrator or Liquidator

The appointed insolvency practitioner is generally the appropriate contact for information about creditor claims.

The official Insolvency Service guidance for creditors explains how creditors can identify the person handling the insolvency.

If your company has not been contacted, obtain the official contact information and notify the office-holder of the debt.

Submit a Proof of Debt

A proof of debt is a formal claim submitted within the relevant insolvency process.

For England and Wales, the Insolvency Rules 2016 set out the applicable proof-of-debt requirements, including details of the amount owed and supporting information.

A typical claim may require:

Creditor's legal name.
Contact information.
Amount claimed.
Details of how the debt arose.
Invoice and contract information.
Any relevant security.
Interest claimed where applicable.
Evidence of payments and credits.
Supporting documents requested by the office-holder.

The formal requirements can vary according to the insolvency procedure.

Follow the administrator's or liquidator's instructions and any applicable deadlines.

Will You Recover the Full Invoice Amount?

Not necessarily.

An unsecured creditor may recover only a portion of the amount owed, or nothing.

Recoveries depend on the assets available after relevant insolvency expenses and claims with higher legal priority.

For example, an unsecured supplier owed £100,000 may receive a distribution of only a small percentage of its claim.

That is not a prediction of the recovery rate in any particular case.

Some insolvencies produce greater distributions; others have no money available for unsecured creditors.

How Long Does Recovery Take?

There is no standard recovery period.

Some insolvency proceedings involve significant asset sales, legal disputes or other complexities.

The Insolvency Service explains that certain cases can take years before creditors receive a distribution.

Do not rely on an uncertain insolvency dividend to meet next month's payroll, HMRC payment or business loan instalment.

Are the Rules the Same Throughout the UK?

No.

Company insolvency procedures and creditor claims have differences across England and Wales, Scotland and Northern Ireland.

The rules discussed here primarily describe the England and Wales framework unless otherwise stated.

For a Scottish or Northern Irish insolvency, follow the rules and instructions applicable to that jurisdiction.

Are Unsecured Suppliers Paid Last in a Company Insolvency?

Ordinary unsecured suppliers often rank behind secured and preferential claims.

However, the legal priority structure is more complex than simply placing every creditor into one universal queue.

In England and Wales, relevant insolvency expenses, fixed-charge rights, preferential claims, the prescribed part for certain unsecured creditors and floating-charge claims can affect distributions.

HMRC also has secondary preferential status for certain tax debts, including specified VAT, PAYE and employee National Insurance amounts, in qualifying insolvencies that commenced after 1 December 2020.

See GOV.UK's guidance on HMRC as a preferential creditor.

For a typical supplier without security, the important consequence is that a valid invoice does not necessarily translate into a recoverable cash amount.

The company should prepare its finances on that basis until recovery prospects become sufficiently clear.

Can Retention of Title Protect a Supplier?

Potentially.

A retention-of-title clause can provide protection where the supplier retains ownership of particular goods until payment is made.

These provisions may be relevant to manufacturers, wholesalers and distributors supplying physical products.

According to the Insolvency Service's retention-of-title guidance, the enforceability of a clause depends on its wording, incorporation into the contract, the identification of goods and other legal conditions.

Example: Unpaid Goods Still in the Customer's Warehouse

A distributor supplies £25,000 of equipment to a commercial customer.

The goods remain unpaid when the customer enters liquidation.

The distributor's contractual terms contain a retention-of-title clause.

If the clause is legally effective and the relevant goods remain identifiable, the distributor may have a potential claim to them.

However, the supplier should contact the office-holder and obtain appropriate legal advice.

The clause does not automatically authorise the supplier to enter the premises or remove the goods.

If the goods have been resold, consumed or incorporated into other products, the legal position may be more complicated.

Does Retention of Title Apply to Services?

Ordinary retention-of-title arrangements generally concern ownership of goods.

A company providing completed cleaning, transport, staffing or consultancy services will not normally have identifiable goods to reclaim simply because its invoice remains unpaid.

Service businesses may therefore have fewer asset-recovery options.

Can You Claim on Trade Credit Insurance?

Potentially, if your company had appropriate trade credit insurance covering the relevant customer and exposure before the insured event.

Trade credit insurance is designed to protect businesses against certain customer non-payment risks.

According to the Association of British Insurers, commercial insolvency and protracted customer default are among the risks that these policies can cover.

How Trade Credit Insurance Works

A business obtains cover under a qualifying policy.

The insurer may assign or approve a credit limit for particular customers.

If an insured customer fails to pay because of a covered event, the supplier may be able to make a claim according to the policy's conditions.

The insurance does not automatically cover every customer or every pound outstanding.

What Should You Check?

Review:

Whether the insolvent customer was insured.
The approved customer credit limit.
The amount of eligible outstanding debt.
The policy's coverage percentage.
Any excess or uninsured retention.
Notification deadlines.
Exclusions.
Required debt collection steps.
Claims documentation.
Treatment of subsequent recoveries.

Worked Insurance Example

Suppose a company has £100,000 of eligible insured exposure to an insolvent customer.

Assume a hypothetical policy covers 80% of that exposure, with no additional deductions in this simplified example.

The potential insured amount would be:

£100,000 × 80% = £80,000.

However, the insurer must confirm that the claim meets the actual policy conditions.

The amount payable may differ because of approved limits, exclusions, deductibles or other terms.

This 80% figure is an illustrative assumption, not a statement of standard UK trade credit insurance coverage.

Can You Buy Insurance After the Customer Goes Insolvent?

A newly purchased policy should not be assumed to cover an already-known insolvency or existing loss.

Trade credit insurance is generally intended to cover qualifying risks under an existing policy.

The insurer's terms determine the applicable coverage.

Does Insurance Pay Immediately?

Not necessarily.

Claims may involve verification, required waiting periods, documentation and other conditions.

A business should not automatically count the expected proceeds as cash available for immediate expenditure.

What Happens if You Already Use Invoice Finance?

This is one of the most important financing questions after a major customer's insolvency.

If your business has received advances against invoices owed by the insolvent customer, the finance provider may change the available facility amount or require repayment of certain advances.

The outcome depends on the agreement.

Recourse Invoice Finance

Under recourse invoice finance, the business generally retains responsibility for customer non-payment under the relevant contractual provisions.

If a customer becomes insolvent, the factor or invoice discounting provider may require the borrower to repurchase the debt, repay the related advance or provide additional eligible invoices.

For example, a company may previously have received an £80,000 advance against £100,000 of customer invoices.

If that customer enters liquidation, the provider may determine that the invoices are no longer eligible.

The company could then face an additional financing obligation depending on its agreement.

This can create an unexpected cash shortage at the same time as losing the customer's revenue.

Non-Recourse Invoice Finance

Certain facilities include bad debt protection or specific non-recourse arrangements.

These may transfer some defined customer credit risk to the finance provider or insurer.

However, the protection is not unlimited.

Disputes, fraud, ineligible invoices, contractual exclusions or breaches of facility terms may still create obligations for the supplier.

The business should review the exact definition of non-recourse and the events covered.

What Happens to the Remaining Eligible Invoices?

The company may have unpaid invoices from other customers that remain creditworthy.

Those receivables may continue to support financing if they meet the provider's requirements.

For example, assume the company has:

£120,000 in invoices owed by the insolvent customer.
£90,000 in eligible invoices owed by other customers.

If the insolvent customer's invoices are excluded, the remaining £90,000 might still support financing.

At a hypothetical 80% advance rate:

£90,000 × 80% = £72,000.

Actual availability would depend on the facility limits, existing advances, fees, concentration rules and other contractual adjustments.

The business cannot assume that the £72,000 represents additional undrawn cash.

It may already have borrowed against some of those invoices.

The British Business Bank's invoice finance guide explains that a company may remain responsible when its customer fails to pay, depending on the financing terms.

What Should You Ask the Invoice Finance Provider?

Confirm which invoices are now ineligible, whether any existing advances must be repaid and what remaining facility availability exists.

Ask whether any bad debt protection applies.

Also establish whether the provider will permit refinancing or restructuring of the affected exposure.

An invoice finance facility may help a company survive a customer insolvency, but it can also transmit the financial impact of that insolvency back to the borrowing business.

Can You Get a New Business Loan After Losing Your Largest Customer?

Potentially.

However, a lender will assess the company's financial position after the loss.

Historical revenue from the insolvent customer may no longer provide a realistic basis for forecasting future repayments.

What Will the Lender Want to Know?

The lender may consider:

How much revenue has been lost.
Whether the lost revenue is permanent or temporary.
How much outstanding debt is unlikely to be recovered.
Whether the company has other reliable customers.
Whether operating costs can be adjusted.
Whether replacement contracts are confirmed.
The amount of unrestricted cash available.
The size and timing of the funding requirement.
Existing borrowing commitments.
Whether repayments remain affordable under a downside forecast.

A business whose remaining operations generate positive cash flow may have better prospects than one that cannot cover essential expenses without the failed customer.

However, no single factor guarantees a lending decision.

Business Funding Options After Customer Insolvency

Different financing products may help eligible UK businesses manage a working capital shortage following a customer's collapse.

1. Unsecured Business Loans

An unsecured business loan can provide an agreed amount of funding without necessarily requiring specific assets as collateral.

For example, a financially viable manufacturer might seek £35,000 to maintain essential operations while reducing costs and replacing lost sales.

A lender may assess its current financial statements, revised revenue forecast, bank statements and existing commitments.

A personal guarantee may still be required.

Potentially suitable when: The business can demonstrate sustainable cash flow after losing the customer.

2. Short-Term Working Capital Loans

A short-term loan may help address an identifiable, temporary cash shortage.

However, a customer insolvency can create permanent lost revenue rather than a temporary payment delay.

Borrowing over a short period may therefore be unsuitable if the company cannot restore sufficient cash generation.

Potentially suitable when: The company has a credible and reasonably near-term repayment source independent of speculative insolvency recoveries.

3. Business Overdrafts

An authorised business overdraft may provide flexibility while the company collects invoices from other customers.

However, banks can review borrowing limits and may reduce or withdraw facilities under their terms.

A business should not assume its overdraft will remain available after a material deterioration in trading performance.

Potentially suitable when: The cash shortage is temporary and the company can manage the overdraft's repayment and review risks.

4. Revolving Working Capital Facilities

A revolving credit facility may allow an eligible company to draw funds as needed and repay amounts when other customer receipts arrive.

This can provide flexibility when cash requirements fluctuate.

However, lenders may reduce available limits after customer concentration, credit quality or business performance changes.

Facility fees, security and repayment conditions must also be considered.

Potentially suitable when: The company has viable remaining operations and recurring short-term working capital requirements.

5. Invoice Finance Against Other Customers

A business with eligible invoices from solvent commercial customers may consider invoice finance.

However, the insolvent customer's invoices will likely be subject to significant eligibility restrictions.

A new invoice finance provider may assess the remaining debtor book, customer payment history and overall business position.

Potentially suitable when: The company continues supplying creditworthy B2B customers and has eligible unpaid receivables.

6. Asset-Based Lending

Asset-based lending uses eligible business assets to support financing.

Depending on the lender, relevant assets may include inventory, machinery, equipment, receivables or property.

For example, an established manufacturing company might have valuable unencumbered machinery and a viable plan to continue operating after losing a customer.

A specialist provider may consider financing supported by eligible assets.

However, asset value does not automatically overcome insufficient repayment affordability.

Potentially suitable when: The company owns qualifying assets and can sustain the new financing obligations.

7. Equipment Refinancing

Some businesses own vehicles, machinery or other eligible equipment outright.

Equipment refinancing or an appropriate sale-and-leaseback arrangement may release capital linked to those assets.

However, the transaction creates new payment obligations and can affect ownership rights.

The company should also consider existing security and whether the assets are essential to ongoing operations.

Potentially suitable when: The business has eligible assets, limited existing encumbrances and a credible operating recovery plan.

8. Supplier Credit and Payment Restructuring

External borrowing is not always the only option.

Some suppliers may agree to revised payment dates or instalments.

Existing finance providers may also consider contractual amendments, subject to approval.

These arrangements can reduce immediate cash requirements but do not automatically reduce the amount ultimately owed.

A supplier's willingness to provide further credit depends on its own assessment.

Worked Example: A UK Manufacturer Loses a Customer Owing £120,000

Consider a hypothetical UK manufacturing company that supplies components to several commercial customers.

Its largest customer enters administration in October 2026.

At the date of administration, that customer owes the manufacturer £120,000, including VAT.

For this example, assume the underlying supplies were subject to 20% VAT.

The invoice balance therefore consists of:

Net sales value: £100,000.
VAT charged: £20,000.
Total outstanding invoices: £120,000.

The company must continue paying employees, suppliers and lenders even though collection of the £120,000 is now uncertain.

Step 1: Remove the Insolvent Customer From the Immediate Cash Forecast

Management prepares a four-week forecast.

It does not include the outstanding £120,000 as expected cash receipts.

It also excludes unconfirmed insurance claims and insolvency distributions.

This avoids overstating the cash available to meet immediate obligations.

Step 2: Calculate Available Cash and Other Customer Collections

Assume the manufacturer has:

Opening unrestricted cash: £24,000.
Reasonably expected payments from other customers during the next four weeks: £87,000.

Total cash and projected receipts:

£24,000 + £87,000 = £111,000.

All amounts in this short-term forecast represent actual cash movements, including VAT where applicable.

Step 3: Calculate Essential Four-Week Expenses

The company expects to pay:

Payroll and employment costs: £45,000.
Essential suppliers: £48,000.
Rent, utilities and operating expenses: £16,000.
HMRC liabilities due in the period: £15,000.
Existing finance repayments: £2,000.

Total cash outflows:

£45,000 + £48,000 + £16,000 + £15,000 + £2,000 = £126,000.

Step 4: Calculate the Four-Week Cash Shortfall

Expected cash available: £111,000.

Expected cash outflows: £126,000.

The forecast closing cash position before new finance would be:

£111,000 − £126,000 = negative £15,000.

The company therefore faces a £15,000 shortage by the end of the four-week period under these assumptions.

Step 5: Include a Minimum Operating Reserve

Management wants to retain £20,000 in cash to protect ongoing operations.

The additional liquidity requirement becomes:

£15,000 shortfall + £20,000 desired reserve = £35,000.

Under this simplified four-week calculation, management may investigate approximately £35,000 in financing or equivalent confirmed liquidity support.

However, the true peak requirement could be greater if major payments become due before the forecast customer receipts arrive.

A weekly cash-flow forecast is needed to identify that timing risk.

Step 6: Stress-Test Other Customer Payments

Suppose 20% of the expected £87,000 from other customers does not arrive during the four-week period.

The revised receipts become:

£87,000 × 80% = £69,600.

Adding opening cash:

£69,600 + £24,000 = £93,600.

Against the £126,000 of expected payments, the closing shortfall is:

£126,000 − £93,600 = £32,400.

Including the £20,000 desired reserve, the liquidity requirement becomes:

£32,400 + £20,000 = £52,400.

What Does This Demonstrate?

The company's base-case funding requirement is approximately £35,000.

Under a weaker collection scenario, that requirement rises to £52,400.

The difference is substantial.

It also demonstrates that the company should not simply borrow £120,000 because that is the value of the insolvent customer's invoices.

The actual funding requirement is determined by the ongoing business's cash needs, the timing of remaining customer receipts and its operating reserves.

The £120,000 insolvency claim remains a separate potential recovery, not an assumed short-term funding source.

This example is hypothetical and does not represent a real loan application, actual insolvency or guaranteed borrowing capacity.

Worked Example: What Would a £35,000 Working Capital Loan Cost?

Suppose the manufacturer considers a hypothetical £35,000 commercial loan.

Assume:

Loan amount: £35,000.
Nominal annual interest rate: 15%.
Repayment term: 18 months.
Interest calculated monthly on a reducing balance.
Equal monthly instalments.
No additional fees.

The approximate monthly repayment would be £2,183.47.

The approximate total amount repaid would be £39,302.42.

Total interest would be approximately £4,302.42.

These are mathematical illustrations, not current lender quotations or representative market interest rates.

How Do You Know Whether the Repayment Is Affordable?

Management prepares a revised medium-term forecast excluding the lost customer's future business.

Assume the company expects £7,000 in monthly cash available for debt service after necessary operating costs, cash taxes, working-capital requirements and essential capital expenditure.

Its existing monthly debt repayments are £2,000.

Adding the proposed financing produces:

£2,000 + £2,183.47 = £4,183.47.

The approximate debt service coverage ratio is:

£7,000 ÷ £4,183.47 = 1.67.

This indicates that the company would generate approximately £1.67 in measured available cash for every £1 of scheduled debt service under the forecast.

Stress-Test the Loan

Now assume cash available for debt service falls to £4,700.

The coverage ratio becomes:

£4,700 ÷ £4,183.47 = 1.12.

This leaves relatively little measured financial headroom.

A further decline could cause difficulty meeting repayments.

No single debt service coverage ratio applies to every UK commercial lender.

The business should also consider the actual dates on which customer payments and finance instalments fall due.

What if the Business Cannot Support the Loan?

The company may need to reduce costs, renegotiate payment arrangements, seek alternative financing or reassess whether its operations remain viable.

A lender might not consider new borrowing appropriate.

A loan that temporarily fills a cash gap is not a sustainable solution if the remaining business cannot generate enough money to repay it.

Can You Recover VAT on Unpaid Invoices After Customer Insolvency?

Potentially, yes. UK VAT-registered businesses may be eligible for bad debt relief where qualifying invoices remain unpaid and the statutory conditions are met.

This can be relevant when a customer becomes insolvent.

However, VAT bad debt relief is not an immediate insurance payout or a substitute for working capital financing.

How VAT Bad Debt Relief Works

According to HMRC's VAT Notice 700/18, qualifying businesses must generally have accounted for and paid the VAT to HMRC.

The debt must also be written off in the relevant records.

For current supplies, a business must generally wait at least six months after the later of:

The date payment became due and payable.
The date of supply.

The claim generally must be made within four years and six months of that later date.

Other conditions also apply.

Example: £120,000 Invoice Including VAT

Return to the manufacturing example.

The unpaid invoice balance is £120,000, including £20,000 in VAT.

If all relevant conditions are eventually satisfied and the full amount remains eligible and unpaid, the VAT associated with the bad debt could be £20,000.

However, the company cannot automatically recover £20,000 immediately when the customer enters administration.

It must satisfy HMRC's timing, accounting and other requirements.

What if the Invoice Was Factored?

This requires particular care.

HMRC's guidance contains specific restrictions and rules concerning debts that have been sold or factored under a valid legal assignment.

The company should not assume it can claim ordinary VAT bad debt relief on an invoice that has already been legally assigned to a finance provider.

The exact treatment depends on the transaction and VAT accounting arrangements.

What if You Use VAT Cash Accounting?

Businesses using the VAT Cash Accounting Scheme generally account for output VAT when payment is received, subject to the scheme's detailed rules.

Ordinary bad debt relief may therefore be unnecessary for amounts on which VAT has not been paid.

Factoring arrangements can also create special cash accounting considerations.

What if the Customer Eventually Pays Something?

The business may need to adjust the VAT position if it subsequently receives a recovery.

HMRC's rules determine the treatment.

VAT relief should be treated as a potential tax adjustment, not as cash guaranteed to arrive when the insolvency is announced.

Ask a qualified accountant to review the invoices and the company's VAT accounting method.

Can Bad Debt Be Deducted for Corporation Tax?

Potentially, subject to the applicable accounting and corporation tax rules.

A business that has recognised income from a customer invoice may need to assess whether the resulting receivable is impaired or should be written off.

The accounting treatment can affect taxable profits.

However, an accounting impairment does not automatically create a cash refund equal to the unpaid invoice.

The tax consequences depend on the company's accounting treatment, legal rights and relevant tax provisions.

Businesses should also avoid double-counting the financial benefit of VAT relief, insurance proceeds, debt recoveries and accounting write-offs.

A qualified accountant can determine the appropriate treatment.

What If the Insolvent Customer Wants to Keep Trading With You?

Some customers continue operating during administration or restructuring.

This can create the possibility of new commercial orders.

However, the supplier should carefully distinguish pre-insolvency debts from new obligations.

Confirm the Legal Customer

Establish which legal entity is placing the new order.

A business may be sold during administration, and a different company may acquire some of its operations.

A new company using the same trading name is not automatically liable for every debt owed by the original company.

Verify its legal identity and contracting authority.

Obtain Written Payment Terms

Before supplying further goods or services, agree who is responsible for payment and when the amount becomes payable.

Depending on the circumstances, a supplier may seek payment upfront or another appropriately protected arrangement.

However, existing contractual obligations and insolvency law can affect what the supplier is permitted to do.

Do not assume that all existing contracts can be cancelled or varied unilaterally.

Avoid Automatically Extending Further Credit

The supplier should carefully evaluate the risk of increasing unpaid exposure.

Where further trading is commercially justified, the arrangement should be documented.

Can New Orders Be Treated Differently?

Potentially.

Properly authorised post-appointment supply may have a different legal treatment from the supplier's earlier unpaid debts.

However, the position depends on the procedure, contract and circumstances.

Obtain legal advice rather than relying on a general assumption that all new debts will automatically be paid in full.

What if the Insolvent Customer Represents 40% or More of Your Revenue?

Losing a customer representing a substantial portion of turnover can create problems beyond the unpaid invoices.

The business may lose future orders and have to operate with lower revenue.

Why Customer Concentration Matters

Customer concentration measures how dependent a company is on one or a small number of customers.

For example, a business with £2 million in annual revenue might generate £800,000 from one customer.

That customer accounts for:

£800,000 ÷ £2,000,000 × 100 = 40% of annual revenue.

If the customer fails, the company may lose a significant portion of expected future sales.

However, the effect on profitability depends on which costs can be reduced.

Lost Revenue Is Not the Same as Lost Profit

Suppose the company previously earned £800,000 annually from the failed customer.

It also incurred £600,000 in direct costs serving that account.

The annual direct contribution would have been:

£800,000 − £600,000 = £200,000.

If the customer disappears, the company does not necessarily lose £800,000 in annual profit.

However, it may lose £200,000 in direct contribution before considering changes in fixed costs, stranded inventory, employee commitments and other expenses.

Some direct costs may stop when orders cease.

Other costs may continue.

A lender will want to understand the new operating position.

What if the Business Cannot Reduce Costs Quickly?

The company may have employees, premises and equipment previously dedicated to the failed customer's work.

These costs may not disappear immediately.

For example, an equipment lease may continue even when the machine is no longer needed for the customer's orders.

A business may therefore experience reduced revenue before it can adjust its cost structure.

This can make the first several months after insolvency particularly difficult.

How to Reduce Operating Costs After Losing a Major Customer

Cost management can be as important as financing.

The business should identify which expenses are essential to its remaining operations.

Review Production and Purchasing Commitments

A manufacturer may need fewer raw materials after losing a major buyer.

Review outstanding purchase orders and supplier commitments before ordering additional inventory.

Reassess Staffing Requirements

A service company may need to adjust staffing allocations when a large contract ends.

Employment decisions must comply with applicable employment law and contractual obligations.

Redundancies, changes to working arrangements and transfers can create additional legal and financial costs.

Review Equipment Utilisation

Machinery, vehicles or other assets previously used for the failed customer may be available for alternative work.

However, a financed asset cannot necessarily be sold or transferred without the lender's consent.

Review Supplier and Landlord Arrangements

Some suppliers or landlords may be willing to consider revised arrangements.

Any agreed changes should be documented.

Protect Profitable Customers

The company should not cut essential service capacity so aggressively that it loses other customers.

A recovery plan should preserve operations that continue to generate sustainable cash.

Industries Most Exposed to Large Customer Insolvency

Several UK sectors can be particularly affected by the failure of a major commercial customer.

Manufacturing and Precision Engineering

Manufacturers may produce specialist components for a small number of major customers.

The failure of one OEM or industrial buyer can leave unpaid invoices, unused materials and equipment previously allocated to that customer's work.

Financing may be evaluated against remaining orders, eligible machinery and cash-flow forecasts.

Wholesale and Distribution

Wholesalers may supply substantial quantities of inventory on credit terms.

A customer's insolvency can leave the distributor with a large debtor balance and continuing obligations to its own suppliers.

Invoice finance against other creditworthy customers or a suitable working capital facility may be relevant.

Logistics and Transport

Transport operators can depend on major retail, manufacturing or distribution customers.

A large customer failure may leave unpaid freight invoices while the business continues paying drivers, fuel, insurance and vehicle finance.

The company should also reassess fleet utilisation.

Recruitment and Staffing Agencies

Recruitment agencies may pay temporary workers weekly while clients settle invoices later.

The insolvency of a large client can therefore create a rapid working capital shortage.

Existing invoice finance obligations should be reviewed carefully.

Facilities Management Companies

A facilities management provider may depend on one major property owner or management group.

A customer's insolvency can create unpaid invoices and the loss of future contract revenue.

The company may still have employee and subcontractor obligations to manage.

Construction and Roofing Contractors

Construction subcontractors may have unpaid certified amounts, retentions and work in progress when a main contractor enters insolvency.

The legal position can be complicated by contract terms, payment notices, security arrangements and applicable construction legislation.

Specialist legal advice may be appropriate.

Commercial Cleaning and Security Companies

These businesses often have significant recurring payroll costs.

Losing a large customer may create immediate liquidity pressure even before staffing commitments can be adjusted.

IT and Managed Service Providers

An IT services business may have purchased hardware, licences or equipment for a customer that can no longer pay.

The company may also have multi-year supplier commitments linked to the customer's services.

A lender may need to distinguish recoverable invoices from continuing contractual costs.

Training Providers

Training companies may deliver substantial volumes of courses under employer contracts.

An employer's insolvency may affect unpaid training invoices and future bookings.

The provider should assess instructor commitments, venue costs and learner obligations before taking on debt.

What Documents Will Lenders Need After a Customer Becomes Insolvent?

The exact requirements depend on the lender and financing product.

A business affected by a large customer insolvency should prepare both its financial records and an explanation of the event.

Business Financial Documents

Recent business bank statements.
Latest annual financial statements.
Current management accounts.
Profit and loss statement.
Balance sheet.
Existing loan and lease repayment schedules.
Current cash position.
Short-term cash-flow forecast.
Forecast showing the remaining business's expected income.

Customer Insolvency Information

Insolvent customer's legal name and company number.
Confirmation of the insolvency status.
Administrator or liquidator details.
Complete outstanding invoice schedule.
Aged debtor report.
Evidence of delivered goods or completed services.
Relevant contracts and purchase orders.
Information about customer disputes or credits.
Proof-of-debt claim information where applicable.

Recovery and Insurance Documents

Trade credit insurance details, if applicable.
Relevant approved customer credit limits.
Insurance claim correspondence.
Confirmed or estimated recovery information, clearly distinguished.
Existing invoice finance agreements.
Amounts advanced against the insolvent customer's invoices.
Details of any related security or recourse obligations.

Proposed Financing Information

Amount of new funding requested.
Explanation of the immediate cash shortage.
Intended use of the funding.
Updated business operating plan.
Information about replacement customer contracts.
Estimated repayment capacity.
Relevant available assets or security.

A lender may request additional records.

A strong application should explain the difference between the one-off bad debt and the remaining company's ongoing ability to generate cash.

What Will Make a Business Loan Application Stronger?

A business seeking funding after customer insolvency should demonstrate that management understands the financial consequences.

Provide a Clear Insolvency Exposure Summary

Explain how much the customer owes and whether the receivables were insured, financed or otherwise protected.

Do not present uncertain recovery amounts as guaranteed cash.

Show the Remaining Revenue Base

Identify which customers continue trading and the level of revenue reasonably expected from them.

Demonstrate Cost Adjustments

Where the company has reduced expenditure or redeployed resources, explain the changes and their cash-flow effect.

Prepare a Realistic 13-Week Forecast

A weekly cash-flow forecast can identify when payroll, suppliers and other obligations may exceed available receipts.

The British Business Bank's cash-flow guidance identifies losing a major customer or not receiving a large invoice payment as examples of events that can create significant financial pressure.

Explain the Financing Requirement

The lender should understand why the requested amount is necessary.

For example, a £35,000 request supported by a four-week cash-flow analysis is more informative than an unexplained request to borrow £120,000 because a customer owes that amount.

Demonstrate Repayment Affordability

The company should show how scheduled repayments can be met from its remaining operations.

Expected insurance or insolvency recoveries should be treated conservatively.

Can Government-Backed Finance Help After a Major Customer's Insolvency?

Potentially, depending on the circumstances.

Eligible UK smaller businesses may be able to access finance through participating lenders under the British Business Bank's Growth Guarantee Scheme.

The scheme supports products including term loans, overdrafts, invoice finance, asset finance and asset-based lending.

Growth Guarantee Scheme in October 2026

According to the British Business Bank, the scheme's currently operating terms generally include:

Facilities up to £2 million per eligible business group, subject to relevant restrictions.
A group annual turnover eligibility threshold of £45 million.
UK trading requirements.
A viable business proposition.
Assessment by an accredited lender.
A 70% government-backed guarantee to the participating lender.

Enhancements announced in July 2026 include plans to increase the turnover threshold to £54 million and provide greater flexibility for certain facility terms.

The British Business Bank states that existing scheme terms remain operational while those changes are implemented.

Does the Government Cover the Lost Customer Debt?

No.

The Growth Guarantee Scheme is not trade credit insurance and does not reimburse a business simply because one of its customers becomes insolvent.

It supports participating lenders providing eligible financing.

Is Approval Guaranteed?

No.

The business must demonstrate an acceptable financing requirement and repayment capacity.

The borrower remains responsible for 100% of the debt, despite the guarantee provided to the lender.

A business that is no longer financially viable may not qualify.

When Should a Business Avoid Borrowing After Customer Insolvency?

Commercial financing may be unsuitable if the remaining business cannot support additional debt.

Warning signs include:

Insufficient cash to meet essential obligations.
Continuing operating losses after the customer has failed.
Dependence on uncertain insolvency recoveries.
No realistic way to replace lost revenue or reduce costs.
Significant overdue supplier or tax liabilities.
Existing loan repayments already exceeding available cash.
Borrowing primarily to cover previous loan instalments.
A business model that depended almost entirely on the failed customer.

What if Your Own Company Is Becoming Insolvent?

The insolvency of a customer can create financial difficulties for its suppliers.

In severe cases, a supplier may become unable to pay its own debts.

Directors of financially distressed companies have legal responsibilities and should consider creditors' interests where required by law.

See GOV.UK's guidance on director duties when a company is insolvent.

If the company cannot realistically meet its obligations, obtain advice from a qualified accountant, restructuring specialist or licensed insolvency practitioner.

Further borrowing should not be used to disguise an unsustainable financial position.

How to Reduce the Risk of Future Customer Insolvencies

Not every customer insolvency can be predicted.

However, businesses can improve their resilience.

Set Customer Credit Limits

Establish appropriate limits for customers purchasing on credit.

The limit should reflect the customer's financial circumstances and the supplier's ability to absorb a potential loss.

Monitor Customer Concentration

Track how much revenue and how much of the aged debtor balance is attributable to each major customer.

A business with most receivables concentrated in one customer can be vulnerable to a single financial event.

There is no universal customer concentration percentage that automatically makes every business unsafe.

Review Aged Debtor Reports

Monitor invoices that are overdue and investigate significant changes in payment behaviour.

A customer consistently extending its payment period may warrant additional review.

Use Appropriate Credit Checks

Commercial credit information may help identify changes in a customer's financial position.

However, credit reports do not predict every insolvency.

Consider Trade Credit Insurance

For businesses with significant credit exposure, trade credit insurance may provide protection against specified customer non-payment risks.

Coverage, cost and customer limits should be reviewed.

Negotiate Deposits or Staged Payments

Where commercially appropriate, customer deposits or staged payments can reduce the amount of unpaid work or goods at risk.

However, the payment terms must be agreed and documented.

Review Retention-of-Title Terms

Suppliers of physical goods may benefit from appropriate contractual protections.

These provisions should be reviewed by qualified legal advisers.

Maintain a Cash Reserve

A reserve can help the company meet essential expenses when a major customer payment fails.

The appropriate amount depends on its operating costs, customer concentration and financial commitments.

Avoid Funding Permanent Losses With Short-Term Debt

A temporary liquidity facility may help a viable business navigate a disruption.

It is not a substitute for sustainable profitability.

Frequently Asked Questions About Business Funding After Customer Insolvency

Can I get a business loan if my biggest customer has gone bust?

Potentially. A UK commercial lender may consider the remaining business's trading performance, cash flow, existing debt and repayment capacity. The customer's insolvency does not automatically prevent financing.

What happens if a customer goes into administration owing my business money?

You may have a claim within the administration. Contact the appointed administrator and follow the applicable creditor claim process. Recovery is not guaranteed.

Can I recover unpaid invoices from a company in liquidation?

Potentially. A creditor may submit a claim through the liquidation process. The amount recovered depends on the assets available, creditor priority and other legal rights.

How do I submit a proof of debt?

Contact the appointed administrator, liquidator or other relevant office-holder. Follow the applicable process and provide the required claim details and supporting evidence.

How long does it take to recover money from an insolvent customer?

There is no universal timeframe. Insolvency proceedings can take months or years, and some creditors receive no payment.

Are unpaid invoices automatically written off when a customer goes insolvent?

No. The accounting treatment depends on recoverability and applicable financial reporting rules. The business should assess whether the receivable needs to be impaired or written off.

Can I get emergency working capital after a customer insolvency?

Potentially. Commercial loans, overdrafts and other facilities may be available to eligible businesses. The lender will assess whether the company can afford repayment.

Can I borrow against invoices owed by the insolvent customer?

Such invoices may be excluded from ordinary invoice finance availability or subject to significant restrictions. Existing advances can also create recourse obligations. The provider's agreement determines the treatment.

What happens if a customer goes insolvent while I use invoice factoring?

The factor may review the invoices, credit protection and relevant recourse obligations. Depending on the contract, the business may need to repay an advance or provide other eligible receivables.

Is non-recourse invoice finance protected against insolvency?

Some non-recourse arrangements provide protection for specified customer credit events. However, exclusions and conditions apply. The exact agreement must be reviewed.

Can I invoice-finance other customers after losing a major buyer?

Potentially. Eligible unpaid invoices from creditworthy remaining customers may support financing, subject to provider requirements and any existing facility obligations.

Does trade credit insurance pay when a customer enters liquidation?

It may, where the customer, exposure and event are covered by the existing policy. The insurer must assess the claim under its terms.

Can I buy trade credit insurance after a customer fails?

A new policy should not be assumed to cover a loss that has already occurred or become known. The insurer's terms determine the scope of coverage.

Can I claim VAT bad debt relief after a customer goes insolvent?

Potentially. HMRC generally requires the qualifying debt to remain unpaid for at least six months after the relevant date and to meet the other statutory conditions.

Can I recover VAT immediately after administration?

Not ordinarily simply because administration has begun. The normal VAT bad debt relief timing and eligibility requirements still apply.

Can I recover goods supplied to an insolvent customer?

Potentially, if legally enforceable retention-of-title rights apply and the goods satisfy the relevant requirements. Do not remove goods without following the lawful process.

Can I continue supplying a customer in administration?

Potentially, but the business should confirm the legal customer, authorised contracting party, payment arrangements and contractual obligations before providing additional goods or services.

Is a signed replacement contract enough to qualify for finance?

Not necessarily. A signed contract may support an application, but the lender must still assess eligibility, financial performance and repayment affordability.

Can a business get financing with bad credit after losing a customer?

Some providers may consider imperfect credit histories. However, adverse credit, lost revenue and repayment difficulties can restrict available options.

How much can I borrow after a customer insolvency?

There is no universal amount. The lender may assess the actual liquidity requirement, remaining income, existing obligations, assets and repayment capacity.

Are there government grants for customers' unpaid invoices?

There is no universal UK government grant that automatically reimburses a supplier whenever a commercial customer becomes insolvent. Specific support schemes, where available, have their own eligibility rules.

Can the Growth Guarantee Scheme help?

Eligible businesses may apply through participating lenders. The scheme does not reimburse the bad debt and does not guarantee loan approval.

Can I use an asset-based loan to cover the shortfall?

Potentially, where the business has eligible assets and sufficient repayment capacity. Existing charges, valuations and security arrangements can affect eligibility.

What if the failed customer represented half my company's revenue?

The lender may need to reassess your company's future trading position. Losing a customer responsible for 50% of sales can materially affect profitability, cash flow and available borrowing capacity.

What is the most important document for a funding application?

There is no single document that establishes eligibility. A current cash-flow forecast, bank statements, financial accounts and an accurate schedule of the insolvent customer's unpaid invoices are particularly useful.

Can I borrow enough to replace the unpaid invoice balance?

Not automatically. The company's actual funding need may differ from the amount owed. Borrowing capacity depends on underwriting and repayment affordability.

Should I get a business loan before filing a creditor claim?

The two processes address different needs. A creditor claim concerns potential recovery of existing debt, while a business loan creates new repayment obligations. A business can investigate both, subject to the relevant requirements.

Is losing a major customer enough to put my company into insolvency?

Not necessarily. A company may remain viable if its remaining operations and financial resources can cover its obligations. If it cannot pay debts as they fall due, professional advice may be urgently necessary.

Explore Business Funding After Losing a Major Customer

If your UK company has been affected by the insolvency of a major customer, understanding the remaining business's financial position is an important first step.

Mehmi Financial Group is a Canada-based commercial financing brokerage that handles enquiries from eligible businesses, including businesses operating in the United Kingdom, subject to applicable local requirements and participating finance provider availability.

We can discuss a commercial funding requirement and determine whether an appropriate financing review or third-party referral route is available.

Relevant information for an initial enquiry includes:

Your company's name and UK location.
How long the business has been trading.
Approximate annual turnover before the customer's insolvency.
The amount owed by the insolvent customer.
The percentage of revenue previously generated by that customer.
Your remaining monthly revenue.
The amount of working capital required.
Existing financing obligations.
Whether trade credit insurance or invoice finance applies.

Discuss Your Business Working Capital Options With Mehmi Financial Group

Begin with a brief description of the funding requirement. Ask for an appropriate secure submission method before sending confidential customer records, financial statements, insurance documents or identity information.

Mehmi Financial Group is not a bank, direct lender, insolvency practitioner or trade credit insurer. Financing is provided by independent third parties where available. UK enquiries are subject to applicable local requirements, provider eligibility, verification, underwriting and final approval. The brokerage may receive commissions or referral fees. No financing amount, rate, approval or funding date is guaranteed. Business purposes only.

Final Thoughts: Protect Cash Flow Before Taking on Additional Debt

The insolvency of a large commercial customer can place significant pressure on an otherwise established UK business.

Unpaid invoices may become difficult to recover, future orders can disappear and the company must continue meeting essential operating obligations.

Several actions can help management respond.

First, establish the customer's insolvency status and identify the amounts owed.

Second, review available creditor recovery rights, trade credit insurance and existing invoice finance obligations.

Third, prepare a realistic cash-flow forecast that excludes uncertain insolvency recoveries.

Fourth, calculate the actual funding requirement based on essential expenses and reliable remaining customer receipts.

Finally, consider whether commercial financing is affordable and appropriate for the company's circumstances.

An unsecured business loan may help a viable business address a temporary liquidity shortage.

A revolving facility may provide flexibility where cash requirements fluctuate.

Invoice finance against eligible remaining customers may release working capital.

Asset-based lending may also be relevant for companies with suitable collateral.

However, new borrowing must be evaluated against the company's post-insolvency revenue and repayment capacity.

The right funding decision should help a financially viable business continue operating after losing a major customer without replacing one significant credit loss with an unsustainable new debt obligation.

About the Author

Jodhbir Mehmi | Mehmi Financial Group

Jodhbir Mehmi works in commercial finance, supporting business owners with financing enquiries, lender documentation and the evaluation of working capital, equipment finance and other commercial funding structures.

This guide explains financing considerations for UK businesses affected by customer insolvency, including unpaid invoices, creditor recovery, trade credit insurance, revised cash flow and commercial lending eligibility.

All financial examples, interest rates, repayment calculations and company scenarios are hypothetical. They do not represent actual funded transactions, lender quotations or verified client insolvency cases.

Authoritative Sources and Further Reading

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