‍

Business Finance for Performance Bonds: What Cash or Security May Be Required?

By Jodhbir Mehmi | Mehmi Financial Group
Research updated: 25 October 2026

UK construction contractors may need to provide a performance bond before starting a major project. Although the bond protects the customer against specified contractor failures, obtaining it can create significant financial obligations for the contractor.

Depending on the bank, surety provider and contract, a performance bond may require a fee, a company indemnity, cash collateral, additional business security or personal guarantees.

However, a £100,000 performance bond does not automatically mean the contractor must deposit £100,000 in cash.

Some financially established contractors may qualify for a surety-backed performance bond without providing cash collateral. Others may be required to pledge a percentage of the bond amount or, in certain circumstances, provide full cash backing.

These requirements can materially affect working capital.

For example, a construction company may win a £1.5 million contract requiring a £150,000 performance bond. If its bond provider requests £37,500 in cash collateral, that money may be unavailable for wages, materials, subcontractors and project mobilisation until the security is released.

The contractor could therefore have sufficient business activity to justify the project but insufficient accessible cash to meet both the bond requirement and the project's initial operating expenses.

This guide explains how UK performance bonds work, what cash or security may be required, how providers assess contractors and which business financing arrangements may help manage the associated working capital requirements.

What Is a Performance Bond in UK Construction?

A performance bond is a financial guarantee issued by a bank, insurer or specialist surety provider in favour of a customer, usually called the employer or beneficiary.

It provides the beneficiary with a potential financial remedy if the contractor fails to meet specified obligations under the underlying contract.

Performance bonds are commonly used in construction and infrastructure projects.

For example, a commercial developer may require a contractor to provide a performance bond before beginning work on a new industrial facility.

If the contractor fails to fulfil its obligations and the conditions for a valid claim are satisfied, the bond provider may become liable for payment up to the amount specified in the guarantee.

The conditions for payment depend on the bond's legal wording.

Who Are the Parties to a Performance Bond?

A typical performance bond arrangement involves three parties.

The contractor, or principal, is the business responsible for performing the construction contract.

The employer, or beneficiary, is the customer receiving the protection of the performance bond.

The surety or guarantor is the bank, insurance-related provider or specialist institution issuing the guarantee.

The contractor generally arranges and pays for the bond.

However, the bond is issued for the benefit of the employer.

Does a Performance Bond Provide Cash to the Contractor?

No.

A performance bond is not a conventional business loan.

The surety does not normally advance the bond amount to the contractor to fund construction.

Instead, it undertakes a potential financial obligation to the beneficiary under the bond.

The contractor may separately need working capital to cover bond-related expenses and project mobilisation.

This is why performance bonds and business financing should be evaluated as related but distinct requirements.

How Much Is a Performance Bond in the UK?

Performance bonds are commonly requested for an agreed percentage of the construction contract value.

In UK construction, 10% of the contract sum is a frequently encountered bond amount, although the actual requirement varies.

For example:

A £500,000 construction contract with a 10% performance bond requirement would involve a £50,000 bond.

A £1 million contract would involve a £100,000 bond.

A £3 million contract would involve a £300,000 bond.

These figures represent the stated maximum bond amounts, not necessarily the fees or cash deposits payable by the contractor.

Some contracts may require a different percentage or a fixed guarantee amount.

The Construction Plant and Surety specialist Kerry London explains that performance bonds are often calculated at approximately 10% of contract value, with the actual requirement depending on the contract.

Is a 10% Performance Bond Legally Required?

No.

There is no general UK law requiring every construction contract to have a performance bond equal to 10% of its value.

The requirement normally arises from the construction contract, tender documents or another applicable commercial obligation.

The employer may request a lower or higher amount, subject to the parties' agreement and relevant rules.

For public procurement, additional principles concerning proportionality and appropriate financial security may apply.

Does a Performance Bond Require Cash Collateral?

Not always. Performance bonds can be issued with no cash collateral, partial cash collateral or full cash collateral, depending on the provider's underwriting and the security arrangements agreed.

Cash collateral is money pledged or held to support the guarantor's potential exposure under the bond.

It may be held in a restricted account or another approved arrangement.

The contractor generally cannot freely use that money while it remains subject to the collateral arrangement.

Scenario 1: No Cash Collateral Required

A specialist surety may consider an established contractor with strong financial statements, adequate working capital and a successful project history.

The surety might accept a corporate indemnity without requesting a separate cash deposit.

For example, a contractor seeking a £100,000 bond may be required to pay the bond premium and sign the agreed corporate indemnity.

It may not need to place £100,000 into a restricted account.

However, the surety may still have contractual recovery rights if it pays a valid bond claim.

No cash collateral does not mean no financial liability.

Scenario 2: Partial Cash Collateral Required

A bond provider may require the contractor to pledge part of the bond amount.

For example, a £100,000 performance bond with a hypothetical 25% cash collateral requirement would require £25,000 of cash security.

The contractor would ordinarily pay the bond fee separately.

The £25,000 could remain restricted until the relevant release conditions are satisfied.

Scenario 3: Full Cash Collateral Required

A bank or surety may require cash equal to the entire bond amount where its underwriting requires that level of security.

For a £100,000 bond, this could mean restricting £100,000 in cash.

This arrangement can create substantial working capital pressure.

It may also defeat some of the commercial benefit of obtaining a third-party bond rather than simply placing cash directly with the beneficiary.

What Determines the Collateral Requirement?

Relevant factors can include the contractor's financial strength, business history, existing debt, project size, bond wording, contract duration and the guarantor's internal risk assessment.

Specialist surety brokers such as Kerry London explain that cash collateral and director guarantees may be requested where the applicant's financial position creates additional risk.

There is no universal percentage of cash security applicable to every UK contractor.

What Security Can a Performance Bond Provider Require?

Cash collateral is only one possible form of support.

Depending on the circumstances, banks and sureties may require different indemnity and security arrangements.

1. Corporate Indemnity

A corporate indemnity is a contractual promise by the company to reimburse the bond provider for amounts recoverable under the indemnity.

For example, if a surety pays £50,000 following a valid bond claim, the indemnity may give it the right to recover that amount and applicable associated costs from the contractor.

Corporate indemnities are a common feature of surety arrangements.

The precise liability depends on the wording of the indemnity agreement.

The bond's stated maximum amount should not automatically be assumed to cap every possible reimbursement cost under a separate indemnity.

2. Personal Guarantees or Personal Indemnities

A provider may request personal support from company directors or shareholders.

This can create liability for the individual if the company does not meet its obligations.

A contractor should establish whether the commitment is limited to a specific amount or extends to additional obligations.

Not every bond requires a personal guarantee.

3. Parent Company or Group Indemnity

Where a contractor forms part of a larger corporate group, the provider may request financial support from a parent company or another related entity.

The provider may view an established and financially strong parent as additional credit support.

However, the indemnifying entity must have appropriate authority to enter the arrangement.

Group guarantees can also be restricted by existing lending agreements.

4. Cash Collateral or Restricted Deposits

A bank or surety may require cash to be held under a collateral agreement.

The contractor should determine who controls the account, whether the cash earns interest and what must happen before it is released.

5. Charges Over Business Assets

Some arrangements may involve security over business property, equipment, receivables or other assets.

Where a UK limited company creates a registrable charge, Companies House generally requires registration within 21 days.

The Companies House guidance on registering charges explains the registration requirements.

Existing secured lenders may also have rights that restrict additional charges.

6. Existing Bank Guarantee Facilities

A bank may issue a performance bond using an established guarantee or trade finance facility.

This can reduce the remaining available facility capacity.

For example, a company with a £300,000 bank guarantee line may find that issuing a £150,000 bond leaves only £150,000 available for other guarantees under that line, assuming no other utilisation or restrictions.

This is different from requiring an immediate cash deposit, but it can still constrain financial flexibility.

Bank Performance Bonds vs Surety Performance Bonds

A contractor may be able to arrange a performance bond through a bank or a specialist surety provider.

The two routes can have different implications for cash and security.

Bank-Issued Performance Bonds

A bank may consider the contractor's existing borrowing relationship, credit facilities and available security.

Depending on its policies, the bank may require a cash margin, a secured guarantee facility or another form of credit support.

An existing bank guarantee line can make arrangements more convenient, but it may consume capacity the business also needs for other financial obligations.

A bank does not automatically require full cash collateral.

Likewise, having a business banking relationship does not guarantee approval.

Specialist Surety Performance Bonds

A specialist surety provider may evaluate the contractor's financial position, project experience and proposed bond terms through a separate underwriting process.

Depending on the applicant, the surety may consider corporate indemnity without a significant cash deposit.

However, it may also require personal, group, cash or asset-backed security.

A specialist surety arrangement can potentially preserve the company's bank guarantee capacity.

Nevertheless, availability and beneficiary acceptance must be confirmed.

Which Route Requires Less Cash?

There is no universal answer.

A financially strong contractor may qualify for a bank guarantee without additional cash margin.

Another contractor might find a specialist surety willing to consider a corporate indemnity without upfront collateral.

Other applicants may face substantial security requirements through both routes.

The useful comparison is not simply bank versus surety. It is the complete cost, collateral requirement, recourse exposure, cash restrictions and impact on existing banking capacity.

Conditional vs On-Demand Performance Bonds: Why the Wording Matters

Not all performance bonds create the same legal risk.

The distinction between conditional and on-demand bonds can significantly influence underwriting, pricing and security requirements.

Conditional Performance Bonds

A conditional performance bond generally links the guarantor's liability to the contractor's failure to meet specified contractual obligations and the employer's resulting loss.

The beneficiary must satisfy the conditions established by the bond wording.

These may involve establishing contractual breach and quantifying the relevant loss.

However, the exact evidence and claims process depend on the agreement.

On-Demand Performance Bonds

An on-demand bond may require the guarantor to pay when the beneficiary submits a demand complying with the bond's documentary requirements.

Depending on the wording, the beneficiary may not first need to establish the contractor's breach and actual loss in the same way as under a conditional bond.

This can create a substantially different risk profile.

A contractor could potentially face a bond claim and related indemnity obligation while still disputing the underlying contractual issues.

Why This Changes Financing Requirements

A surety or bank may assess an on-demand obligation as presenting greater payment risk than an otherwise comparable conditional bond.

That can influence security requirements, pricing or whether the provider will accept the application.

In July 2026, Marsh's UK surety specialists highlighted the significant differences between conditional and on-demand wording and the associated contractor indemnity exposure.

What About ABI Performance Bonds?

The Association of British Insurers' model form of guarantee bond is commonly encountered in UK construction.

The traditional ABI model is a conditional form rather than a pure on-demand guarantee.

However, the original form may be amended.

A contractor should never assume that a document is conditional simply because it is described as an ABI-based bond.

What Should Contractors Check?

Before agreeing to a performance bond, review the actual wording, including the definition of default, requirements for making a claim, liability cap, expiry provisions and indemnity obligations.

The contractor should obtain appropriate legal advice where the guarantee could create significant exposure.

Example: A £1.5 Million Contract Requiring a Performance Bond

Consider a hypothetical UK construction contractor awarded a £1.5 million commercial project.

The employer requires a performance bond equal to 10% of the contract sum.

The required bond amount is:

£1,500,000 × 10% = £150,000

The contractor must arrange the bond before starting work.

Step 1: Calculate the Bond Fee

Assume a specialist provider offers a hypothetical bond premium equal to 2% of the £150,000 bond amount.

The fee would be:

£150,000 × 2% = £3,000

This 2% assumption is for illustration only and is not a verified market quote.

If the relevant fee is standard-rated for VAT and 20% VAT applies, the additional VAT would be £600.

That would create a gross fee payment of £3,600.

Whether VAT is chargeable or recoverable depends on the actual arrangement and the contractor's circumstances.

Step 2: Calculate the Potential Cash Collateral

Suppose the bond provider also requires cash collateral equal to 25% of the bond amount.

The calculation is:

£150,000 × 25% = £37,500

The £37,500 is separate from the fee.

The contractor may eventually recover the collateral if the release conditions are satisfied and it is not applied towards a valid obligation.

However, the money could remain unavailable throughout the relevant security period.

Step 3: Assess the Contractor's Working Capital

Assume the construction company has £100,000 in unrestricted cash before entering the contract.

It estimates that initial project mobilisation will require £68,000 for labour, materials and other necessary expenditure.

After the mobilisation expenses, the company would have:

£100,000 − £68,000 = £32,000

It must also pay the hypothetical gross bond fee of £3,600.

That would leave £28,400.

However, the bond provider requires £37,500 in cash collateral.

The contractor therefore faces a funding shortfall of:

£37,500 − £28,400 = £9,100

Step 4: Compare a Bond Without Cash Collateral

Suppose another acceptable surety offers the same illustrative fee but does not require cash collateral.

The company would retain approximately £28,400 after the same mobilisation expenses and fee.

It would still remain liable under its indemnity and the construction contract.

However, its immediate unrestricted cash position would be significantly stronger.

Step 5: Consider a Fully Cash-Backed Bond

If a provider instead required 100% collateral, the contractor would need to pledge £150,000.

This amount alone would exceed its available cash balance before considering project mobilisation.

The contractor might need an entirely different security arrangement, additional capital or another financing structure.

What This Example Demonstrates

The contractor's financial requirement is not simply the £3,000 bond premium.

The cash collateral conditions can be much more important.

A bond that costs less in fees may be commercially less attractive if it locks up substantially more working capital.

The contractor should calculate the total restricted cash requirement before accepting a bond quotation—not just compare the advertised premium.

All amounts are hypothetical and do not represent actual lender or surety offers.

Can You Get a Business Loan to Fund Performance Bond Collateral?

Potentially, depending on the commercial lender, the bond provider and the proposed security arrangements.

A contractor may investigate business finance where it needs additional working capital because cash must be pledged against a performance bond.

However, a conventional business loan is not automatically eligible to be used as cash collateral for a separate surety or bank guarantee.

Why the Funding Purpose Matters

Some lenders restrict how borrowed funds may be used.

A provider may also prohibit borrowing money merely to place it into a restricted deposit supporting another financial obligation.

Likewise, a bond provider may need to understand where the cash collateral originated.

The applicant must disclose the financing structure accurately.

Example: Borrowing £37,500 for a Cash Margin

Suppose a contractor considers a hypothetical £37,500 loan to meet a bond provider's collateral requirement.

Assume:

Loan amount: £37,500.
Fixed nominal annual interest rate: 12%.
Interest-only term: Six months.
Monthly interest payments.
Arrangement fee: 2%.
Full principal payable at maturity.

The monthly interest would be:

£37,500 × 12% ÷ 12 = £375

Total interest over six months would be £2,250.

The arrangement fee would be £750.

Total interest and arrangement charges would therefore be £3,000, excluding other fees.

The contractor would still owe the £37,500 principal at maturity.

The Problem With Repayment Timing

Suppose the bond's cash collateral is restricted for eighteen months rather than six.

The contractor could reach the business loan maturity date while the collateral remains unavailable.

The loan would then need to be repaid from another source.

This would create a serious liquidity mismatch.

A loan used to support bond collateral should not depend on collateral being released before the contractual release conditions are satisfied.

Furthermore, this example does not establish that an actual lender would approve the use of proceeds or that a surety would accept borrowed collateral.

A More Appropriate Alternative in Some Cases

Instead of borrowing money to create a cash deposit, the contractor may be able to investigate a bond provider that requires less collateral.

Alternatively, the contractor might use a suitable working capital facility to finance project expenses while preserving its own cash for an unavoidable bond margin.

Both arrangements require independent underwriting and appropriate lender consent.

The suitability depends on the overall cost, security and cash flow position.

How Performance Bond Requirements Affect Business Loan Affordability

A performance bond can affect a contractor's financing position even where the company does not borrow the bond amount.

Restricted Cash Reduces Available Liquidity

Cash deposited as collateral may remain on the balance sheet but be unavailable to fund ordinary operations.

A lender assessing borrowing capacity should distinguish unrestricted cash from restricted deposits.

Existing Bank Facility Capacity May Be Reduced

A bank guarantee may consume part of an agreed credit or guarantee limit.

That can affect the capacity available for future contracts or other facilities.

Indemnities Create Contingent Liabilities

A corporate indemnity may create a potential future reimbursement obligation.

Although no cash payment is necessarily due when the bond is issued, a valid claim could result in substantial liabilities.

A lender may therefore examine outstanding performance bonds when assessing the borrower's overall risk.

Bond Premiums Reduce Project Profitability

The bond fee is an additional cost associated with delivering the contract.

A contractor bidding on work should include the expected bond expense in its project budget where appropriate.

Collateral Release May Occur After Project Completion

The bond or associated security may remain in place during an agreed defects period or until other contractual release conditions are met.

The contractor should not assume all pledged cash will be released on the date physical construction work finishes.

Multiple Bonds Can Create Aggregate Exposure

A contractor working on several projects may have multiple outstanding performance bonds.

Each bond may generate additional underwriting exposure, fees, indemnity obligations and potentially collateral requirements.

The combined obligations matter.

How Lenders and Sureties Assess a Contractor's Financial Position

Performance bond underwriting is similar to a commercial credit assessment in several respects.

However, the surety is also assessing the risk that the contractor will fail to perform its contractual obligations.

Trading History

Established contractors may be able to demonstrate experience completing projects of similar size and complexity.

A newly incorporated company may have less historical evidence available.

Financial Statements

Providers commonly request annual accounts and current management information.

They may examine profitability, retained earnings, debt levels and financial stability.

Cash Flow and Working Capital

Contractors must have sufficient working capital to meet payroll, suppliers and other operating costs throughout the project.

A business with large annual turnover but limited available cash may still present a significant risk.

Existing Borrowing

Bank loans, overdrafts, equipment finance and other financial commitments can affect the contractor's risk profile.

Contract Size

A contractor's largest previous project may be relevant.

A company accustomed to £250,000 projects may require additional scrutiny before undertaking a £5 million contract.

Project Profitability

The surety may examine the estimated gross margin and costs required to complete the work.

A large contract with an unusually thin margin can create a greater risk of cash shortages.

Work in Progress

Providers may request information about projects already underway.

A contractor managing several large contracts simultaneously may have substantial demands on staff, equipment and working capital.

Project Duration

Longer projects expose the contractor to potential changes in materials costs, labour costs and operating conditions.

The bond may also remain outstanding for longer.

Bond Wording

A conditional bond and an on-demand bond can create different exposures.

A provider may assess the wording before issuing a final quote.

Previous Claims or Financial Difficulties

Past bond claims, defaults, adverse credit events or material financial problems may affect underwriting.

Security and Guarantees

A financially stronger applicant may qualify with less cash collateral than another contractor.

However, the actual requirement is specific to the provider and transaction.

The Kerry London construction bond guidance identifies company accounts, management information, forecasts, workload and contract wording as relevant application materials.

What Documents Are Needed to Apply for a Performance Bond?

A bank or surety provider may request financial, legal and project information before issuing terms.

Common information can include:

Registered company name and number.
Business ownership and group structure.
Latest annual financial statements.
Current management accounts.
Cash flow forecasts.
Details of existing bank borrowing and facilities.
Schedule of current projects.
Work-in-progress information.
Relevant project completion history.
The underlying construction contract or proposed contract.
The exact performance bond wording.
The required bond amount.
Contract commencement and completion dates.
Details of the employer or beneficiary.
Existing performance bonds and guarantees.
Any proposed corporate or personal indemnities.
Information about collateral offered.

Additional information may be requested for complex or higher-risk transactions.

Where the contractor is also considering a business loan for working capital, the financing lender may require a separate application.

A complete surety submission does not automatically satisfy a commercial lender's underwriting requirements.

Can New Construction Companies Obtain Performance Bonds?

Potentially.

However, newly formed contractors may face more restrictive underwriting because they lack established financial statements and project history.

A provider may examine relevant directors' experience, company capital, available cash, proposed subcontractors and the nature of the project.

Why a New Company Might Need More Collateral

A surety may have limited evidence of the company's ability to complete the work successfully.

It may therefore require additional support.

This could include cash collateral, parent company support or personal guarantees.

Does a Signed Contract Guarantee a Bond?

No.

A contract award can establish why the bond is required.

However, the bank or surety must still determine whether the contractor is acceptable.

A contractor should investigate bonding capacity before committing to tender requirements that depend on obtaining a bond.

Can a Contractor Obtain a Bond With Bad Credit?

Some providers may consider businesses with adverse credit, subject to underwriting.

However, weak financial statements or credit problems can result in higher costs, greater collateral requirements or a decline.

There is no guaranteed approval based solely on the value of the project.

Performance Bonds Under JCT and NEC Contracts

JCT and NEC construction contracts are widely used in the UK.

Both can accommodate performance security, but the actual obligation depends on the contract documentation.

NEC Performance Bonds

In standard NEC4 Engineering and Construction Contracts, secondary option X13 addresses performance bonds.

The option must be selected where applicable.

The required bond amount and form must be established through the relevant contract documents.

There is no universal NEC rule requiring every contractor to provide a 10% bond.

The NEC's guidance on performance bonds discusses the X13 mechanism and the importance of specifying the bond amount and wording.

JCT Performance Bonds

Relevant JCT contract forms allow the parties to specify a performance bond requirement.

However, a bond is not automatically required simply because a JCT contract is used.

The completed Contract Particulars and related documents determine the requirement.

A project may use an ABI-derived bond form or another agreed form.

Why Contract Amendments Matter

A contractor should not assume standard contractual provisions remain unchanged.

Bespoke amendments may alter the bond's amount, duration, conditions for making a claim or other obligations.

The exact documents should be reviewed before accepting the requirement.

Can a Performance Bond Be Reduced After Practical Completion?

Potentially.

Some bonds contain provisions allowing the guaranteed amount to reduce after specified project milestones.

For example, a £200,000 bond might reduce to £100,000 following practical completion if the bond and contract expressly provide for that reduction.

However, there is no universal rule requiring performance bonds to reduce automatically by 50%.

A contractor must check the agreed wording.

Why Reductions Matter for Cash Collateral

Where collateral is calculated using the outstanding bond amount, a reduction may create an opportunity to release some restricted cash.

For example, a bond amount decreasing from £200,000 to £100,000 could potentially reduce the provider's required cash margin.

However, this depends on the collateral agreement.

A lower bond amount does not automatically require the provider to release collateral immediately.

What Happens at Bond Expiry?

The contractor should establish:

The contractual expiry event.
Whether the beneficiary must provide a release.
Whether any claims remain outstanding.
Whether the indemnity continues for specified liabilities.
How and when cash collateral is released.

The bond may expire at practical completion, after a defects period or on another agreed event or date.

Do not assume that project completion automatically releases all security.

Performance Bonds vs Retention Bonds vs Advance Payment Bonds

These instruments provide different types of protection.

Performance Bonds

A performance bond supports specified contractor obligations under the construction contract.

The amount is often expressed as a percentage of the contract sum.

Retention Bonds

A retention bond can provide security in place of cash that the employer would otherwise withhold from the contractor's payments.

For example, a contractor might otherwise have a percentage of progress payments retained until later project milestones.

A retention bond may allow the contractor to receive those payments without the same cash deduction, subject to agreement.

However, the contractor must still pay the relevant bond costs and provide any required indemnity or security.

Advance Payment Bonds

An advance payment bond protects the beneficiary in connection with an advance paid to the contractor.

For example, an employer may agree to advance money for materials or mobilisation while requiring a guarantee covering the relevant amount.

The bond may reduce as the advance is recovered through contract payments, where the terms provide for it.

Why the Distinction Matters

A contractor should not request a performance bond when the employer actually requires an advance payment bond.

The financial exposure, amount, duration and wording may differ.

The provider should receive the actual contractual requirement.

Alternatives to a Cash-Collateralised Performance Bond

Where a bond creates significant working capital pressure, a contractor may be able to discuss alternative arrangements with the employer.

However, the employer is not required to accept a replacement form of security.

Parent Company Guarantees

A parent company guarantee may be appropriate where the contractor is part of a financially established group.

The parent undertakes specified obligations if the contracting subsidiary fails to perform.

This can avoid certain third-party bond costs.

However, it creates financial and legal exposure for the parent company.

A parent guarantee may also be less valuable if the parent and subsidiary are exposed to the same financial difficulties.

A Lower Bond Amount

The contractor may seek agreement on a smaller guarantee amount where the project risks support it.

For example, the employer might accept 5% instead of 10%.

Whether that is acceptable depends on the contract and beneficiary.

A Conditional Bond Instead of On-Demand Wording

A contractor may request more balanced conditional wording where appropriate.

This may improve the availability or security terms offered by certain sureties.

However, no improvement is guaranteed.

Reduced Security at Project Milestones

The parties may agree to reduce the bond amount or release part of the security as the contractor completes specified obligations.

This can help prevent cash from remaining restricted longer than necessary.

Retention or Other Contractual Security

An employer may consider retention arrangements or other appropriate contractual protection.

However, cash retention can create its own working capital cost.

An Alternative Acceptable Surety

Where the employer permits it, a contractor may investigate another bond provider with different underwriting requirements.

The contractor should confirm that the beneficiary will accept the issuer and the proposed wording.

Why Public-Sector Requirements May Be Negotiable

UK government procurement guidance published in September 2026 explains that performance security should be proportionate to the risks involved.

It also notes that demanding security can be burdensome for smaller suppliers and may reduce their ability to compete.

This does not give contractors an automatic legal right to refuse a bond.

However, it supports a commercially reasonable discussion about whether the proposed security is appropriate.

See the Government Commercial Function's guidance on suppliers' economic and financial standing.

What Does a Performance Bond Cost in the UK?

The cost depends on the provider, contractor, guarantee amount, legal wording and duration.

There is no single performance bond premium that applies to all UK construction businesses.

A provider may quote a one-off fee, an annual premium or another pricing structure.

Bond Amount vs Premium

A £200,000 performance bond does not mean the contractor must pay a £200,000 premium.

The bond amount represents the maximum stated exposure under the guarantee, subject to its terms.

The premium is the price charged to issue the guarantee.

For example, a hypothetical 2% premium on a £200,000 bond would equal £4,000.

That is an illustration, not a market quotation.

Cash Collateral Is Separate

If the provider requires a £50,000 cash margin, that money is separate from the £4,000 illustrative premium.

The collateral may ultimately be released if the relevant conditions are met.

The premium, by contrast, is generally a charge for providing the bond and should not be assumed to be refundable.

Other Possible Costs

Depending on the agreement, the contractor may incur legal fees, arrangement charges, facility fees, security costs, renewal charges or additional amounts if the bond period is extended.

Can Bond Premiums Be Subject to VAT?

Yes, depending on the legal and tax nature of the product.

Under HMRC's VAT Finance Manual VATFIN2850, performance guarantees securing performance obligations rather than the payment of money are generally standard-rated.

Certain financial guarantees securing payment obligations may qualify for different VAT treatment.

The exact arrangement must be assessed.

A contractor should confirm whether the quoted fee includes VAT and whether any input VAT is recoverable.

How to Finance a Project When Bond Collateral Restricts Cash

A contractor facing a significant performance bond requirement should evaluate the entire project's cash flow rather than treating the bond as an isolated expense.

Step 1: Calculate the Total Bond-Related Cash Requirement

Establish the premium, potential VAT, any arrangement fees and required collateral.

Distinguish refundable restricted cash from non-refundable financing costs.

Step 2: Calculate Project Mobilisation Expenses

Identify how much cash is needed for materials, labour, subcontractors, insurance, equipment and other expenses before the first customer payment.

Step 3: Determine Unrestricted Available Cash

Exclude restricted deposits and amounts needed for existing liabilities.

A company with £200,000 in its bank accounts does not necessarily have £200,000 available to use on a new project.

Step 4: Estimate the Peak Working Capital Shortfall

Prepare a forecast showing when expenses must be paid and when contract receipts are expected.

A rolling 13-week forecast can be useful for initial mobilisation.

Longer or more complex projects may need a full project cash flow forecast.

Step 5: Compare Acceptable Bond Providers

Where possible, assess bond pricing and security together.

The lowest premium may not create the best overall liquidity position.

Step 6: Consider Separate Working Capital Finance

An eligible contractor may be able to investigate a revolving credit facility, working capital loan or other commercial finance arrangement for project expenses.

This does not automatically mean a provider will finance bond collateral itself.

Step 7: Review Existing Security

Determine whether other lenders already hold charges over the assets or cash the bond provider wants.

Additional security may require consent or a revised arrangement.

Step 8: Stress-Test Delayed Customer Payments

Consider what happens if the first payment certificate is delayed or the employer disputes an invoice.

The company must be able to continue meeting operating expenses and financing obligations.

Step 9: Confirm the Collateral Release Conditions

Do not build the cash flow forecast around an assumed collateral release date that has not been contractually established.

Step 10: Obtain Legal and Financial Review

A performance bond and its indemnity can create material financial obligations.

The company should understand the complete arrangement before signing.

What Business Funding Options May Help Contractors Meet Bond-Related Costs?

Several forms of commercial financing may be relevant.

However, product suitability depends on the use of funds and the contractor's circumstances.

Working Capital Loans

A term loan may provide capital for eligible project mobilisation expenses.

Repayments must be affordable alongside the contractor's existing obligations.

Business Lines of Credit

A revolving facility may help manage temporary differences between paying project expenses and collecting customer payments.

Availability and security requirements vary.

Invoice Finance

Where a contractor has eligible unpaid commercial invoices, invoice finance may release cash tied up in receivables.

However, construction invoices can be affected by retentions, disputes, uncertified work and contractual deductions.

The finance provider will assess the amount actually eligible for funding.

Asset Refinancing

Contractors owning qualifying machinery or other assets may investigate secured borrowing or refinancing.

This can release capital without necessarily selling productive assets.

However, existing finance and security rights must be considered.

Capital Contributions

Shareholders or other investors may choose to provide additional capital where appropriate.

This may avoid certain loan repayment obligations but can have ownership or other financial consequences.

Negotiated Payment Terms

An employer may agree to an appropriate mobilisation payment or revised progress payment structure.

This can reduce the contractor's working capital requirement, but such arrangements must be agreed and documented.

The British Business Bank's working capital finance guidance explains the differences between loans, revolving facilities and receivables finance.

Why Performance Bond or Finance Applications Get Declined

A contractor may struggle to obtain an acceptable bond or related financing for several reasons.

Insufficient Cash Flow

The company may lack enough available cash to support the project and its existing obligations.

Weak Financial Statements

Limited equity, persistent losses or excessive borrowing can increase underwriting concerns.

Project Size Exceeds Experience

A contractor taking on a project far larger than its previous work may require additional scrutiny.

Unacceptable Bond Wording

The proposed guarantee may create payment exposure that the provider is unwilling to accept.

High Aggregate Bond Exposure

The contractor may already have significant outstanding bonds across other projects.

Existing Security Restrictions

Another lender may hold rights preventing additional charges or restricting use of bank deposits.

Insufficient Collateral

Where cash or asset security is required, the business may not have enough acceptable unencumbered assets.

Poor Credit History

Missed payments, defaults or other adverse information can affect lender and surety eligibility.

Low Project Profitability

A contract with weak margins may not provide adequate protection against cost overruns.

Incomplete Documents

Missing accounts, unclear bond wording or insufficient project information can prevent a provider from completing underwriting.

How to Improve Your Chances of Obtaining a Performance Bond

Contractors can strengthen a bond application by presenting clear financial and project information.

Prepare current financial statements. Providers may want to understand the company's present financial position rather than relying only on last year's filed accounts.

Provide a realistic project budget. Show the contract value, estimated costs, expected margins and payment schedule.

Maintain a work-in-progress schedule. Identify other major contracts already underway.

Disclose existing guarantees and bonds. The provider needs to evaluate total exposure.

Explain available cash and banking facilities. Distinguish unrestricted cash from restricted deposits.

Provide the actual proposed bond wording. A general description may not be sufficient for final underwriting.

Demonstrate relevant project experience. Evidence of completed similar contracts can support the provider's assessment.

Review collateral requirements early. Do not assume the company can meet a deposit after the contract has been awarded.

Consider the effect of delayed payments. A realistic forecast should not depend on every invoice being paid immediately.

Confirm beneficiary acceptance. A competitively priced bond is not useful if the employer will not accept its issuer or wording.

Frequently Asked Questions About Performance Bond Finance UK

Does a Performance Bond Require 10% Cash Collateral?

No.

A performance bond amount of 10% of the contract value does not automatically require the contractor to deposit the same amount in cash.

The actual collateral requirement depends on underwriting and the agreement.

Can I Get a Performance Bond Without Cash Collateral?

Potentially.

Some specialist sureties consider qualifying contractors without a separate cash deposit.

However, corporate indemnities or other obligations may still apply.

How Much Does a £100,000 Performance Bond Cost?

There is no universal fee.

Pricing depends on the contractor, wording, bond duration and provider.

For illustration, a hypothetical 2% fee would equal £2,000 before any applicable VAT or additional charges.

That is not a verified quotation.

Can a New Construction Company Get a Performance Bond?

Some providers may consider newer contractors.

However, limited trading history may result in stricter underwriting or additional security requirements.

Is a Performance Bond the Same as a Bank Guarantee?

A bank can issue a performance bond or guarantee, but specialist sureties can also issue them.

The legal obligations depend on the instrument's wording, not simply the issuer.

Is a Surety Bond Cheaper Than a Bank Guarantee?

Not necessarily.

The comparison should include premiums, cash collateral, security, indemnities and use of existing bank facilities.

Do I Need a Personal Guarantee?

Not always.

Some providers accept corporate indemnities without personal guarantees.

Other applications may require additional support.

Can I Borrow Money to Pay Performance Bond Collateral?

Potentially, where a commercial lender permits that use and the bond provider accepts the proposed arrangement.

However, borrowing for collateral creates additional financing costs and liquidity risks.

Approval is not guaranteed.

Can I Use a Business Loan to Pay a Bond Premium?

Some business loans may permit eligible contract-related operating expenses.

However, the use of funds must comply with the lender's agreement.

Can I Use Equipment as Security for a Performance Bond?

Potentially.

Certain providers may accept qualifying business assets as part of a security arrangement.

Existing ownership and finance rights must be reviewed.

Can a Performance Bond Use My Existing Bank Credit Facility?

Yes, in some circumstances.

A bank guarantee may utilise an existing guarantee or trade finance limit.

The effect depends on the facility agreement.

Does an On-Demand Bond Require More Security?

It may.

On-demand wording can increase the guarantor's exposure and influence pricing or collateral requirements.

However, no single rule applies to every provider.

Is a Performance Bond Refundable?

The premium should not be assumed to be refundable.

Cash collateral may be released after the relevant contractual conditions are satisfied.

When Is Performance Bond Cash Collateral Released?

The timing depends on the collateral agreement, bond expiry and any outstanding claims or liabilities.

Project completion does not automatically mean immediate release.

Can a Bond Amount Reduce After Practical Completion?

Yes, where the agreement contains an appropriate reduction provision.

There is no universal automatic reduction applicable to every bond.

Can a Contractor Have Multiple Performance Bonds?

Yes, potentially.

However, the surety or bank will consider aggregate exposure and existing commitments.

Can a Contractor Get a Performance Bond With Bad Credit?

Some providers may consider adverse-credit applicants, but financial difficulties can increase costs, require additional collateral or result in a decline.

Is a 10% Performance Bond Mandatory Under JCT?

No.

The relevant JCT contract documents determine whether a bond is required and its terms.

Does Every NEC Contract Require a Performance Bond?

No.

The appropriate NEC performance bond option must be selected where applicable.

Are Performance Bonds Required for Public Contracts?

Some public contracts require performance bonds, but there is no universal requirement applying to every public procurement.

Requirements should be proportionate and supported by the relevant procurement and contractual framework.

Is a Performance Bond the Same as a Retention Bond?

No.

A performance bond supports specified contractual performance obligations.

A retention bond generally provides security in place of cash that would otherwise be withheld from contract payments.

Can a Parent Company Guarantee Replace a Performance Bond?

Potentially, if the employer accepts it.

However, the parent company must be able and willing to provide the required guarantee.

What Happens if the Contractor Defaults?

The beneficiary may seek payment under the bond if the relevant conditions are satisfied.

The surety or bank may then have recovery rights under the applicable indemnity or security agreement.

Does a Performance Bond Count as Business Debt?

A performance bond does not necessarily create an immediate funded loan balance.

However, the related guarantee and indemnity can create contingent financial exposure.

Cash collateral and bank facility utilisation may also affect the contractor's financial position.

How Long Does It Take to Obtain a Performance Bond?

The timeframe varies depending on the provider, financial documents, legal wording and underwriting.

The contractor should investigate requirements before committing to a project deadline.

What Is the Best Financing Option for Performance Bond Cash Requirements?

There is no universally best option.

The contractor should first establish whether cash collateral is necessary and whether an acceptable lower-collateral arrangement is available.

Where additional working capital is required, a suitable commercial facility may be considered subject to independent underwriting.

Explore Business Financing for Construction Contract Requirements

If your UK construction business has been awarded a contract requiring a performance bond, the financial implications may extend beyond the fee charged to issue the guarantee.

Cash collateral, restricted bank facilities, indemnities and project mobilisation costs can all affect the amount of working capital the company needs.

Mehmi Financial Group is an independent, Canada-based commercial financing brokerage that accepts enquiries from eligible UK businesses, subject to applicable local requirements and confirmed third-party provider availability.

Our team can review the basic circumstances of a commercial working capital or business financing enquiry and discuss whether an appropriate financing or referral pathway may be available.

Discuss Your Construction Business Funding Requirements

When contacting the team, explain your business location, approximate annual turnover, the contract value, bond amount, the security or cash collateral requested and the expected project mobilisation costs.

It may also be helpful to identify existing borrowing, available unrestricted cash and when project payments are expected.

Begin with general information and use an appropriate secure submission process before providing confidential construction contracts or financial records.

Mehmi Financial Group does not itself issue performance bonds or guarantee the availability of a UK surety arrangement. Performance bond issuance and commercial financing are separate processes and may require different specialist providers.

Final Thoughts: Understand the Cash Requirement Before Accepting a Performance Bond

Performance bonds are an established form of financial protection in UK construction, but they can create significant obligations for contractors.

A bond equal to 10% of a construction contract does not automatically mean the contractor must deposit 10% of the contract value.

Some applicants may qualify with a corporate indemnity and no separate cash collateral.

Others may need to provide restricted deposits, personal guarantees, group support or charges over assets.

The difference can materially affect how much working capital remains available to deliver the project.

Before accepting a bond requirement, contractors should confirm the actual wording, premium, collateral amount, available bank capacity and release conditions.

They should also account for project mobilisation and the possibility of delayed customer payments.

Where business finance is needed, the borrowing structure should be evaluated against the full project cash flow rather than the bond fee alone.

The most financially suitable performance bond arrangement is not necessarily the one with the lowest premium. It is one whose total cost, security obligations and impact on working capital the contractor can support while completing the project.

About the Author

Jodhbir Mehmi — Mehmi Financial Group

Jodhbir Mehmi works in commercial finance, supporting businesses with funding requirements, financial information preparation and the evaluation of potential commercial financing arrangements.

Mehmi Financial Group is an independent commercial financing brokerage serving eligible businesses in supported markets through third-party financing providers, subject to local requirements and confirmed availability.

Authoritative Sources and Further Reading

‍