Lease or buy is one of the first real financial decisions a business makes once a vehicle becomes part of the operation. The CRA's rules shape that decision more than most people expect — neither option is a simple "claim what you spend." Both come with real caps.

Buying: How CCA Actually Works

Buy a vehicle, and the deduction comes through CCA (Capital Cost Allowance — the tax term for deducting a vehicle's cost gradually over several years instead of all at once), applied to the business-use portion of the cost. But passenger vehicles hit a ceiling: for a vehicle acquired in 2026, the CCA limit is $39,000 before tax, plus the applicable sales tax on that amount. Buy something well above the limit, and the extra purchase price doesn't create extra CCA room — the claim just stops at the cap. Finance the purchase, and the interest itself gets capped too, at $350 per month for 2026.

Leasing: A Different Cap, Same Idea

Leasing doesn't mean simply deducting whatever monthly payment you make. For a passenger vehicle, CRA limits the eligible leasing cost using a formula that considers the lease payments, the number of days the vehicle was leased, the vehicle's manufacturer's list price, and prescribed limits. For a new lease entered into in 2026, the monthly limit used in that calculation is $1,100 before tax.

In plain language: an expensive lease doesn't automatically produce a bigger tax deduction. CRA's calculation puts a ceiling around how much of the lease cost can qualify, and your business-use percentage then limits the business portion you can claim.

So Which One Actually Makes Sense?

The tax caps matter, but they shouldn't decide this on their own. Compare the actual purchase price or lease terms, financing cost, expected business use, how long you expect to keep the vehicle, and what the vehicle is likely to be worth when you're finished with it.

Buying leaves the business with an asset it can eventually sell, but the purchase price isn't deducted all at once — CCA spreads the deduction over time, and passenger-vehicle limits can restrict how much cost qualifies. Leasing avoids the upfront purchase but creates an ongoing payment, and CRA limits how much of the lease cost can qualify for deduction.

The better answer comes from running the actual numbers for the vehicle you're considering, not from assuming leasing or buying is automatically more tax-efficient.

The GST/HST Difference Nobody Mentions

Buying means GST/HST hits all at once, upfront, on the full purchase price. If the business is GST/HST-registered, some or all of that tax may come back as an input tax credit — a mechanism that lets a registered business recover the GST/HST it pays on its own purchases and expenses, rather than treating it as a straight cost. Leasing generally spreads the GST/HST across the lease payments instead. That creates a very different cash-flow pattern from paying GST/HST on a purchase upfront.

Electric Vehicles Play by Slightly Different Rules

Qualifying zero-emission passenger vehicles have their own, noticeably higher CCA ceiling: $61,000 before tax, plus applicable sales tax on that amount, for vehicles acquired in 2026, compared with $39,000 plus applicable sales tax for regular passenger vehicles. That ceiling moves periodically too, so it's worth confirming the current number before it factors into a real decision.

These Numbers Change Every Year — Actually Check Them

The CCA ceiling, the lease limit, the interest cap — the Department of Finance reviews and adjusts these annually, and the figures above are the confirmed 2026 numbers. Last year's number isn't this year's number. Confirming the current figures before finalizing a lease-or-buy decision matters more here than in most corners of bookkeeping, because these caps genuinely move the math year to year.

Bought or leased, the deduction still lives or dies on a proper mileage log establishing the business-use percentage — RSB's guide to vehicle mileage log requirements covers that piece, and the per-kilometre allowance guide covers reimbursing an employee's own vehicle instead.

FAQ

Is leasing always the better move for cash flow?
Usually, in the short term — lease payments tend to run lower than loan payments on the same vehicle. But the full picture depends on how long the vehicle sticks around and what happens at the end: a lease ends with nothing owned, while a purchase leaves an asset behind.

Do these caps apply to trucks and vans the same way as cars?
Not always. Most cars are passenger vehicles for tax purposes, but some vans and pickup trucks can be treated differently, depending on their seating configuration and how they're actually used in the business. CRA has specific business-use tests for this, so don't assume something is exempt from the passenger-vehicle limits simply because it's called a truck or van.

Does paying cash for a vehicle dodge the interest cap?
Yes — the interest cap only bites on financed purchases, so cash sidesteps that particular limit. The CCA ceiling on the purchase price itself still applies regardless of how it was paid for, though.

Can I buy the vehicle at the end of the lease?
Often, yes — many leases include a buyout option, but the terms and price depend on the agreement. Buying the vehicle changes the tax treatment from that point forward, so don't assume the lease deductions simply continue after the purchase.

Follow the system. File with confidence.