Quick answer: Interest is generally deductible in Canada when it’s paid (or payable) on borrowed money used to earn business income , and the cost is reasonable . CRA’s detailed guidance sits under paragraph 20(1)(c) and related rules.
Equipment interest deduction: the rule in plain language
Key point: Interest is generally deductible in Canada when it’s paid (or payable) on borrowed money used to earn business income, and the cost is reasonable. CRA’s detailed guidance sits under paragraph 20(1)(c) and related rules. Canada
That sounds simple—until real life happens:
- You refinance equipment and pull extra cash.
- You mix business and personal use.
- You buy equipment but the funds temporarily sit in your account.
- You restructure into a lease to lower payments.
- You’re incorporated and fall under EIFEL limitations.
So let’s break it down the way both CRA and lenders think.
Loan vs lease: what you actually deduct (and why it matters)
Key point: A loan usually creates two separate tax buckets—interest expense and CCA (depreciation). A lease typically creates one bucket—lease expense (plus GST/HST timing). If you want a full tax overview first, read our guide on the tax benefits of equipment financing in Canada.
If you’re deciding between structures, start with lease vs buy equipment in Canada. If you’re stuck on lease classification language, see differences between capital and operating leases.
BDC’s equipment-financing guide emphasizes the complete financing structure when comparing offers.
“Don’t focus only on interest rates”
For the equipment decision discussed here, compare the amount financed, payment schedule, collateral and remaining obligations alongside the quoted rate.
When equipment loan interest is deductible (the “use-of-funds” test)
Key point: CRA cares less about the label (“equipment loan”) and more about what the borrowed money was used for—and whether that use is connected to earning income. Canada
The underwriter-friendly version of CRA’s logic
If I’m underwriting your file, I ask:
- What did the borrowing pay for? (invoice, purchase agreement, payout letter)
- Does that thing produce revenue or protect revenue? (capacity, uptime, compliance)
- Can we trace the dollars cleanly? (bank statements, wire receipts)
- Is the cost sensible for the risk? (rate, fees, term vs useful life)
CRA’s audit lens maps surprisingly well to lender logic. Clean tracing wins.
Common examples that usually work
- Borrowing to buy production equipment used in operations
- Borrowing to buy a work truck used in the business
- Borrowing to buy equipment that is leased out to customers (rental fleet)
- Borrowing to refinance an existing business-use equipment facility (still business-use)
Where people get burned
- Borrowing in the business name, but using proceeds to pay personal debt
- “Temporary parking” of borrowed funds with no clear business purpose trail
- Refinances where the extra cash-out is used for non-income purposes
- Claiming 100% interest when the equipment is partly personal use (rare for equipment, common for vehicles)
If you want the short version on deductibility mechanics, we also wrote: Are equipment loan payments tax-deductible in Canada?
Leases: do you “deduct interest” or “deduct payments”?
Key point: For most equipment leases, you don’t separately deduct “interest” on your tax return—you deduct lease payments that relate to earning business income. CRA’s lease expense guidance is explicit on deducting lease payments incurred in the year for business-use property. Canada
The nuance most owners miss: you may split principal and interest (if both parties agree)
CRA notes that if you entered a lease agreement, you can choose (with the lessor’s agreement) to treat lease payments as combined principal and interest for CRA purposes in certain cases. Canada
Practical takeaway:
- If you’re leasing for simplicity, deduct the lease payments (business-use portion).
- If you need a clearer “interest component” (e.g., internal reporting, covenants, lender reporting), talk to your accountant and lessor about whether a split treatment is appropriate.
If you’re trying to sanity-check lease pricing, see how to calculate lease rate percentage and benchmark ranges in equipment lease rates in Canada.
GST/HST: is interest taxable?
Key point: In most straightforward equipment financings, interest itself is typically not subject to GST/HST the way lease payments are—because lending is generally treated as a financial service and financial services are generally exempt under GST/HST rules. Canada
What business owners actually feel is the timing difference:
- Loan purchase: You generally pay GST/HST on the equipment purchase (then claim ITCs if eligible).
- Lease: You pay GST/HST on each lease invoice (then claim ITCs if eligible).
For a deeper, practical breakdown: HST/GST on equipment leases in Canada.
The corporate trap in 2026: EIFEL may limit interest deductions
Key point: If you operate through a corporation (or certain trusts), your interest deduction might be limited by Canada’s Excessive Interest and Financing Expenses Limitation (EIFEL) rules, which apply to tax years starting on or after October 1, 2023. (CRA last updated its EIFEL page November 18, 2025.) Canada
What EIFEL changes (in plain English)
EIFEL is aimed at limiting excessive interest/financing expense deductions for affected entities—especially where leverage can be used to reduce taxable income.
What to do if you’re incorporated:
- Ask your CPA before closing a large equipment debt package: “Could EIFEL limit our deduction?”
- Be extra careful with:
- Holding companies and operating companies with intercompany debt
- Large leveraged acquisitions
- Refinances that significantly increase interest expense
- Multiple entities with consolidated reporting needs
Credit analyst view: If EIFEL could limit your deduction, you may prefer structures that reduce stated interest expense (e.g., different lease structures) only if the after-tax cash cost improves. Don’t chase optics—chase outcomes.
The “reasonable interest” issue: CRA and lenders quietly agree here
Key point: Even if interest is connected to earning income, CRA expects it to be reasonable, and lenders expect pricing to match risk.
Here’s the underwriter translation of “reasonable”:
- Good file + liquid asset + strong documentation → lower rate expectations
- Startup / weaker credit / specialized equipment / thin financials → higher rate expectations
- Longer term than the asset’s realistic life → looks risky (and can create tax/accounting awkwardness)
If you’re unsure how lenders will size your deal, run your numbers first using the equipment financing calculator, then sense-check affordability using estimate equipment financing you qualify for.
Important: Your actual tax rate can differ (small business deduction, provincial rate, personal marginal rate for sole props, loss years, EIFEL, etc.). But this gives you the right intuition:
Contrarian (but true) take: If you’re buying equipment mainly for the interest deduction, you’re optimizing the wrong variable. The goal is after-tax cash flow and risk control, not maximizing deductions.
Documentation checklist: what CRA (and lenders) want to see
Key point: If you can’t prove the use of funds and business purpose, you’re relying on luck.
Keep these in one folder per asset
- Signed purchase agreement or invoice (make/model/serial if applicable)
- Financing agreement (loan/lease), amortization schedule or payment schedule
- Proof of payment to vendor (wire, EFT, bill of sale)
- Bank statements showing the flow of funds (especially on refinances)
- Insurance certificate (often required as a funding condition)
- Registration/title documents for vehicles (if applicable)
Two “quiet killers” in real files
- Commingled funds: refinance proceeds hit your account and get mixed with everything else
- No purpose memo: you know it was for the business, but you didn’t write it down
Mehmi underwriting tip: When we package a file, we like a one-paragraph “use of proceeds” statement that matches the documents. It helps approvals—and it helps you defend deductions later.
How lenders evaluate interest expense (5Cs, in normal language)
Key point: Lenders don’t just ask “Can you deduct it?” They ask “Can you carry it?”
Here’s the 5Cs lens on equipment debt service:
- Character: payment history, collections, how you explain past issues
- Capacity: can cash flow cover payments with a buffer (DSCR)
- Capital: down payment/equity, retained earnings, skin in the game
- Collateral: equipment liquidity, age, condition, resale demand
- Conditions: industry volatility, seasonality, customer concentration
Why this matters for tax: the most “deductible” interest in the world is useless if the payment structure stresses cash flow and triggers covenant breaches.
If you’ve ever wondered how debt shows up in reporting, read Is an equipment loan a liability?
Structuring tips: how to protect the deduction and the business
Key point: The best structure is the one that aligns tax treatment, cash flow, and asset life.
Match term to useful life (not just payment comfort)
A longer term can lower payments, but it can also:
- increase total interest,
- trap you in old equipment,
- create refinance risk later.
Avoid “cash-out drift” on refinances
If you refinance equipment and pull out extra cash, be ready to show where it went. If it’s working capital for contracts, deposits, payroll float—document it. If it’s personal spending, your interest deductibility story weakens fast.
Consider sale-leaseback when the real issue is liquidity
If you own equipment and need cash while keeping it working, a sale-leaseback can be cleaner than stacking unsecured debt. Start here: sale-leaseback financing in Canada
Anonymous case study: “The deduction worked—because the file was clean”
Business: Mid-sized Alberta fabrication shop (incorporated)
Need: Add a CNC machine to fulfill a new contract, without blowing up monthly cash flow
Equipment cost: ~$420,000 all-in (delivered + installed)
Problem: Owner wanted the “interest write-off,” but cash flow was tight during ramp-up
What we did (leasing-first logic)
- Chose a lease structure with a meaningful residual to keep payments manageable during onboarding.
- Built a “use of proceeds” package: vendor invoice, installation scope, bank trail, and a one-page contract summary showing revenue linkage.
- Ensured the shop’s internal reporting still tracked the implied cost of funds (so management didn’t underprice jobs).
- Flagged EIFEL early for the CPA because the company had related entities and growing financing costs (no surprise at year-end).
Outcome
- The shop kept monthly obligations within a safe coverage buffer (so approvals were smooth).
- Deduction treatment aligned with CRA lease-payment guidance (business-use portion). Canada
- The company avoided a year-end scramble on interest limitation risk because EIFEL was considered up front. Canada
Takeaway: The “tax win” wasn’t a trick—it was the byproduct of a structure that made business sense and had clean documentation.
Common questions owners ask (and straight answers)
“If I pay $6,000/month, can I deduct the whole payment?”
- Loan: No—only the interest is typically deductible; principal is not (you recover cost through CCA).
- Lease: Often yes (business-use portion), because it’s a lease expense.
“What if I use the equipment partly for personal use?”
You generally need to prorate deductions to the business-use portion. (This comes up more with vehicles than true business equipment.)
“Can I deduct financing fees too?”
Often, some financing costs may be deductible or amortized depending on the type. Your CPA should confirm treatment.
“Should I choose a loan just because interest is deductible?”
Not automatically. Compare total after-tax cash cost and risk. The deduction is rarely the main driver.
Calm next step (not salesy)
If you’re about to finance equipment and want the structure to match cash flow + tax timing + approval reality, Mehmi can help you model options quickly and package the documentation in a lender-friendly way—especially when the “obvious” structure isn’t actually the safest one.
Authoritative references
- Innovation, Science and Economic Development Canada — Canada Small Business Financing Program:
The Canada Small Business Financing Program makes it easier for small businesses to get loans from financial institutions by sharing the risk with lenders.
Eligibility, pricing, tax treatment, and program terms can change. Verify current official guidance and final financing documents.
FAQ (Canada-specific)
1) Is interest on an equipment loan tax-deductible in Canada?
Often yes, if the borrowed money is used to earn business income and the interest is reasonable, consistent with CRA’s interest deductibility guidance. Canada
2) Are equipment lease payments deductible in Canada?
Generally, CRA allows you to deduct lease payments incurred in the year for property used in your business (business-use portion). Canada
3) Can a lease be treated like principal + interest for tax purposes?
CRA notes that in certain situations you can choose to treat lease payments as combined principal and interest, but both parties must agree. Canada
4) Do incorporated businesses face limits on interest deductions?
They can. EIFEL may restrict deductibility of interest and financing expenses for affected corporations/trusts for tax years starting on/after Oct 1, 2023. Canada
5) Do you pay GST/HST on interest?
In many cases, interest is associated with financial services that are generally GST/HST exempt, while lease payments typically include GST/HST on each invoice. Canada
6) What records should I keep to defend interest deductions?
Keep invoices, the financing agreement, proof of payment, bank trail (especially for refinances), and a short “use of proceeds” memo connecting the borrowing to income-earning business activity.