Motor Vehicle Expenses on T2125: Line 9281 from Top to Bottom
For a freelancer who drives to clients, job sites, or suppliers, the vehicle is usually one of the two largest deductions on the return — and the most mechanically involved. Line 9281 of T2125 is not a single number you look up; it is the output of a sub-calculation that pools every eligible vehicle cost for the year, applies the business-use percentage from your mileage log, and respects three separate limits depending on whether you financed, leased, or bought the vehicle outright. This guide walks through the full eligible-expense list, the percentage that scales it, one worked example for each ownership scenario, the two costs that are claimed at 100%, and the errors that get vehicle claims reassessed.
How the Deduction Works: One Formula
Everything on line 9281 reduces to a single structure:
Eligible vehicle expenses × Business-use % = Line 9281
The business-use percentage comes from one place only: your mileage log. Business kilometres divided by total kilometres driven in the year. There is no per-kilometre shortcut for sole proprietors — the widely cited "CRA mileage rate" is an employer-reimbursement rate for employees and does not appear anywhere on T2125. If that distinction is new to you, read our CRA mileage log requirements guide first; the log is what makes every dollar below claimable.
The Full Eligible-Expense List
Pool the year's totals for every category that applies to your vehicle:
| Expense | Deductible? | Notes |
|---|---|---|
| Fuel or EV charging | Yes | Gas, diesel, propane, or electricity for charging — keep the receipts or a home-charging estimate method your accountant approves |
| Insurance | Yes | Annual premium for the vehicle |
| Licence & registration | Yes | Plate renewals, registration fees |
| Maintenance & repairs | Yes | Oil changes, tires, brakes, car washes, seasonal tire swap and storage |
| Lease payments | Yes, capped | Subject to the monthly lease ceiling — see the leasing scenario below |
| Loan interest | Yes, capped | Interest only, subject to a monthly limit — see the financing scenario below |
| Loan principal | No | Debt repayment is never an expense; the purchase cost flows through CCA instead |
| Capital cost allowance (CCA) | Yes, capped | Depreciation on an owned vehicle — see the ownership scenario below |
| Parking (business trips) | Yes — at 100% | Not prorated; see below |
| Tolls (business trips) | Yes — at 100% | 407 ETR, bridge tolls on business routes |
| Roadside assistance | Yes | CAA-style memberships, prorated with the pool |
| Tickets & fines | No | Parking tickets and speeding fines are never deductible |
Every amount in the pool needs a receipt behind it. The mileage log proves the percentage; the receipts prove the dollars — losing either half weakens the whole claim. For what counts as adequate receipt documentation, see our master write-offs guide.
The Business-Use Percentage
Say the year's pool came to $9,400 — fuel $3,200, insurance $1,800, licence $180, maintenance $820, loan interest $1,400, CCA $2,000. Your log shows 9,000 business km of 18,000 total km: 50% business use. Line 9281 gets $9,400 × 50% = $4,700, plus your 100%-claimable parking and tolls.
Two habits keep the percentage defensible. Record the odometer on January 1 and December 31 — the difference is your denominator. And reconcile: your logged trips (business plus personal, if you log both) should approximately add up to that odometer difference. A log that shows 14,000 km of trips against a 22,000 km odometer year has a 8,000 km hole an auditor will ask about.
If your home office is your principal place of business, trips from home to client sites count as business kilometres rather than commuting — a classification that can move the percentage dramatically. Our home office deduction guide covers that connection.
Scenario 1: You Financed the Vehicle
Two streams come out of a financed vehicle. The interest on the loan goes into the expense pool — but only up to a monthly ceiling of approximately $350 per month (the figure is adjusted periodically; verify the current limit). The principal is never deductible; instead, the vehicle's cost is depreciated through CCA (scenario 3 applies to financed vehicles too, since you own the car).
Worked example: you paid $2,900 of loan interest this year. The ceiling is roughly $350 × 12 = $4,200, so the full $2,900 enters the pool. Had you bought an expensive vehicle with $5,300 of annual interest, only about $4,200 would qualify. Either way, the amount then gets multiplied by your business-use percentage like everything else — $2,900 × 50% = $1,450 claimed.
Scenario 2: You Lease
Lease payments are deductible, but with a ceiling designed to stop luxury leases from being fully written off: eligible lease costs are limited to approximately $1,050 per month plus sales tax (again, adjusted periodically — verify the current figure). Leases above the ceiling are also subject to a second, value-based proration formula that can restrict the claim further; tax software or your accountant applies it from the manufacturer's list price.
Worked example: your lease is $680/month — under the ceiling, so the full $8,160 for the year enters the pool, and at 50% business use contributes $4,080. If instead you leased at $1,400/month, only about $1,050 + tax per month would qualify before the value-based formula, and the excess is simply personal cost. A leased vehicle claims no CCA and no loan interest — the lease payment is the cost.
Scenario 3: You Own It — CCA
An owned vehicle (bought outright or financed) can't be expensed in the year of purchase. Its cost is capitalized and depreciated through capital cost allowance on a declining-balance basis:
- Class 10 (30%): passenger vehicles costing up to the prescribed ceiling — approximately $38,000 plus tax (verify current).
- Class 10.1 (30%, capped): passenger vehicles costing more than the ceiling. The depreciable base is capped at the ceiling — the excess purchase price generates no deduction, ever. Class 10.1 vehicles also have special rules on sale (no recapture, half-year on disposal).
- The half-year rule: in the year you acquire the vehicle, you generally claim CCA on only half the base. Accelerated first-year rules have applied in recent years and change this math — confirm what applies to your purchase year.
Worked example: a $30,000 + tax vehicle sits in class 10. Year 1 CCA under the classic half-year rule: $30,000 × 30% × ½ = $4,500. Year 2: ($30,000 − $4,500) × 30% = $7,650. Each year's CCA goes into the pool and is then multiplied by the business-use percentage — at 50%, Year 1 contributes $2,250. A $60,000 vehicle would be class 10.1 with its base capped at roughly $38,000 + tax; the extra $22,000 of purchase price never generates a deduction.
CCA is permissive — you may claim less than the maximum in a low-income year and keep the balance for later. And when you eventually sell the vehicle, disposals can trigger recapture or terminal-loss consequences: that is squarely consult-your-accountant territory. Our T2125 form guide covers where the CCA schedule lives on the form.
The Two 100% Items: Parking and Tolls
Parking and tolls incurred on business trips are the exception to the proration rule: they are claimed in full, not multiplied by the business-use percentage — the trip itself was business, so the whole cost is business. Park for a client meeting, claim the whole receipt. The flip side: parking at your own regular workplace and tolls on personal trips are personal, full stop. Keep these receipts in their own small pile; blending them into the prorated pool under-claims them.
The Errors That Get Vehicle Claims Reassessed
- Claiming 100% business use. One vehicle, a household, and no personal kilometres is a story reviewers rarely accept. Most sole proprietors with one vehicle land between 40% and 70%.
- Using the per-km rate. Kilometres × the published employee rate is the wrong method on T2125 and invites reassessment under the actual-expense method.
- No log, big claim. The percentage is the load-bearing number; without a log it collapses.
- Deducting loan principal or the full price of the car in year one. Principal is never an expense; the purchase cost flows through CCA within its class limits.
- Forgetting the sale. Selling or trading in a vehicle you claimed CCA on can trigger recapture (income) or a terminal loss — leaving it off the return is a common and detectable miss. Talk to your accountant in any year you dispose of a business vehicle.
Where InvoiceFast Fits
The percentage half of this calculation is the part that fails most often, and it is the part InvoiceFast automates. On iOS and Android, automatic mileage tracking detects your drives and logs the date, start and end points, and distance; you classify trips as business or personal (or let time-of-day rules do it), and the vehicle summary computes your business-use percentage from classified kilometres and your odometer readings, then applies it to your line-9281 expense pool in a T2125 summary your accountant can prepare the return from — a working paper, not a filed return.
Your first 25 trips and 25 expenses are free. Pro + Tax ($12.99/month or $99.99/year CAD) unlocks unlimited records and the PDF/CSV exports of the mileage log, vehicle summary, and T2125 summary.
Frequently Asked Questions
Can I claim my car payment?
Not the payment. Loan principal is never deductible; loan interest is, up to roughly $350/month. The car's cost is recovered through CCA instead. Lease payments are deductible within the monthly lease ceiling.
Can I use the CRA per-kilometre rate on T2125?
No — that rate is for employer reimbursements to employees. Sole proprietors must use actual expenses multiplied by the logged business-use percentage.
What if I didn't keep a mileage log this year?
Reconstruct honestly from calendars, invoices, and map history, claim a conservative percentage, and start a real log now — automatic tracking makes next year's log effortless.
What if I use two vehicles?
Each vehicle needs its own expense pool, its own kilometre records, and its own percentage. Costs from two vehicles can't share one calculation.
Do EV owners claim charging?
Yes — electricity for charging takes fuel's place in the pool. Public charging receipts are straightforward; home charging needs a reasonable, documented estimate method, which is worth agreeing with your accountant.