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A mileage log the CRA will accept

November 10, 2026 · 4-minute read

If you use your own vehicle for work, you can claim the business share of its costs. A simple log is how you prove the share.

What to write down

For each business trip, note:

  • the date,
  • where you went,
  • why (the customer, the job, the supplier), and
  • how many kilometres.

Also write down the odometer reading at the start and end of the year. Business kilometres divided by total kilometres gives the business share.

The simpler way, after one full year

Keeping a log every day is tiresome. The CRA allows a shortcut: keep a full log for one whole year first. After that, you can keep a log for a sample period of three months in a row each year, as long as your business use stays within about 10% of that first full year. Keep the odometer readings every year.

Company vehicle, or your own?

If your company owns the truck, it pays the fuel and repairs directly, and there's no mileage to track for you. If you own it and drive it for the company, the company can pay you back for the business kilometres.

In PeaceBooks

Turn on Mileage in Settings. Log a trip in a few taps, and PeaceBooks keeps the log for your accountant, by vehicle and date. At year-end it's in the file you hand over.

This is general information to help you keep good records, not tax or legal advice. Your accountant knows your situation; check with them before a big decision.

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