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Latest update: May 15, 2026 - 5 min read

CRA Mileage Log Requirements

When you use your personal vehicle for work-related purposes, you may receive reimbursement for your business kilometres from your employer, or claim mileage from the CRA at tax time. To claim mileage from your employer or the CRA, you need to keep evidence in the form of a mileage log, and in some cases, also car expense receipts.

Mileage log requirements for claiming mileage from an employer

Mileage reimbursement from employers is normally based on the per-kilometre automobile allowance rate set by the CRA. The 2026 CRA vehicle allowance rate is 73 cents per business kilometre for the first 5,000 km and 67 cents afterwards. In the Territories, the rates are 76 cents per km for the first 5,000 km and 70 cents afterward.

Work out your mileage reimbursement with our calculator 

While there are no official requirements for a mileage log you provide to your employer, most require some evidence before paying out reimbursements. You will need to log details of your work-related trips, including:

  • the date of each trip
  • your destination
  • what the purpose of the journey is, and
  • the number of kilometres driven.

Remember that your employer might ask you to record more details in your mileage log, such as odometer readings, the time of day the trip occurred, and other information.

Read more on mileage for employees in Canada in our dedicated guide.

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Mileage log requirements for claiming mileage from the CRA

Self-employed individuals can claim mileage from the CRA using either the full or simplified logbook method.

Employees claiming mileage at tax time must have kept a mileage log for the full year. 

Note that if you use your vehicle for business and personal journeys, you will need to record both, not just your business-related mileage. You must record the following details in your mileage log for each trip you take with your vehicle:

  • the date
  • destination
  • purpose
  • kilometres driven

Your CRA mileage log must also include your vehicle's odometer readings at the start and end of each year.

To accompany your logbook, you must keep receipts of all car expenses throughout the year. These include:

  • licence & registration costs
  • fuel and electricity (for zero-emission vehicles)
  • insurance
  • maintenance & repairs
  • leasing costs
  • interest on money borrowed to buy the vehicle

If you use multiple vehicles for business purposes, you must keep separate mileage logs and records of each vehicle's expenses.

Learn more about claiming vehicle expenses from the CRA as a self-employed individual.

Full logbook vs. the simplified logbook method for the self-employed

Self-employed Canadians have two ways to record business kilometres for the CRA: the full logbook method and the simplified logbook method. Both require the same trip details, but they differ in how long you have to log for each year. Picking the right one comes down to how steady your business driving is from year to year.

How the full logbook method works 

The full logbook method asks you to log every business trip, every year. For each trip, record:

  • date
  • destination
  • purpose
  • number of kilometres driven

You'll also need your vehicle's odometer reading at the start and end of each tax year (and at the point of any vehicle change during the year).

If you use the vehicle for both personal and business journeys, log both — the CRA needs to see your total kilometres to work out your business-use percentage.

How the simplified logbook method works

The simplified logbook method lets you keep a full 12-month logbook once, then rely on a 3-month sample period in each following year. The 12-month period is called your base year, and it sets your reference business-use percentage.

Each year after the base year, you maintain a logbook for any continuous 3-month period — the sample period. If the business use during that sample period is within 10 percentage points of the same period in your base year, the CRA will accept your sample-period log as a proxy for the full year.

The formula the CRA uses is:

(Sample year period % ÷ Base year period %) × Base year annual % = Calculated annual business use

You still need to keep all vehicle expense receipts (fuel, insurance, registration, repairs, and so on) for the whole year, regardless of which method you use.

Full vs. simplified logbook at a glance: Comparison table

Element Full logbook Simplified logbook
Best for Drivers whose business use varies year to year Drivers with steady business use and at least one full year of logged driving

What you record per trip

Date, destination, purpose, kilometres

Date, destination, purpose, kilometres
Logbook duration each year Full year, every year Base year: full 12 months. Each following year: a continuous 3-month sample period
Odometer readings Start and end of each tax year Start and end of each tax year
Receipts you still need All vehicle expense receipts for the year All vehicle expense receipts for the year
Compliance check None beyond the records themselves Sample period business use must be within 10 percentage points of the same period in the base year
How you calculate business use Business km ÷ total km (Sample period % ÷ Base period %) × Base year annual %

CRA mileage log formats

The CRA accepts paper, diaries, account books, digital spreadsheets, CSV files, PDF files, and XLSX (Microsoft Excel) files for mileage claims at tax time. Your employer should tell you what record formats they accept.

Get our free mileage log template here. 

Consider an automatic solution for recording your vehicle kilometres. An automated mileage tracking app like Driversnote can help you record everything you need to claim your work-related car expenses from the CRA or your employer.

FAQ

No. There's nothing in the law requiring you to log odometer readings for each trip. When calculating your car expenses using the logbook method, you must record your odometer at the beginning and end of the year. Keep in mind, though, that your company may ask you to record odometer readings more frequently.
If your business use stays roughly the same year to year, the simplified method will save you time once your base year is complete. If your driving patterns shift — new job, new clients, different territory — the full logbook method keeps your deduction accurate without the 10-point sample-period risk.
Yes. You can move to the simplified method once you have a complete 12-month base-year logbook in place. If your driving changes significantly, you can also start a new base year at any time and continue with the simplified method from there.
Yes, for the base year and for each 3-month sample period. The CRA works out your business use by comparing business kilometres against your total kilometres, so personal trips have to be logged during those periods too.
Yes! If you drive the vehicle(s) for personal use as well, you need to be able to show the portion of use that is for business. This is calculated as a proportion of total kilometres driven for both professional and personal reasons. This entails keeping track of all trips and then determining the percentage of kilometres driven for business purposes.
Whether you are an individual taxpayer or self-employed, the CRA requires you to keep your records for six years from when you lodge your tax return, in case they need you to substantiate your claims.

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This material has been prepared for general informational purposes only, and should not be taken as professional advice from Driversnote. You should consider seeking independent legal, taxation, or financial advice from a professional to check how this information relates to your own circumstances. Relevant laws also change from time to time.