Are Reimbursed Mileage Expenses Taxable in Canada for a T4 Employee?

Are Reimbursed Mileage Expenses Taxable in Canada for a T4 Employee?

Many Canadians use their personal vehicles for work and receive mileage reimbursements from their employers. A common question arises: are these reimbursements considered taxable income? Generally, mileage reimbursements paid to a T4 employee for business-related travel are not taxable in Canada, provided the amount is reasonable and the expenses are properly accounted for. The Canada Revenue Agency (CRA) views these payments as a reimbursement of actual costs incurred by the employee, rather than an additional form of income. However, there are specific conditions and scenarios where these reimbursements can become a taxable benefit, which every employee and employer should understand.

Understanding "Reasonable" Mileage Reimbursements According to the CRA

The key to non-taxable mileage reimbursement lies in its "reasonableness." The CRA does not explicitly define a maximum non-taxable rate for mileage reimbursements, but it does provide guidance through its prescribed rates for automobile allowance deductions, which can serve as a benchmark. For 2024, these rates are 70 cents per kilometre for the first 5,000 kilometres driven and 64 cents per kilometre for additional kilometres in a calendar year. In the Northwest Territories, Yukon, and Nunavut, an additional 4 cents per kilometre is allowed. While these rates are for employees claiming a deduction, employers often use similar figures to establish their reimbursement policies.

A reimbursement is considered reasonable if it:

• Is based on the actual number of kilometres driven for business purposes.
• Reflects the costs of operating a vehicle (fuel, maintenance, insurance, depreciation).
• Does not exceed a rate that would reasonably compensate the employee for these costs.

If the reimbursement rate significantly exceeds what would be considered reasonable to cover actual costs, the excess amount may be treated as a taxable benefit.

Accountable vs. Non-Accountable Reimbursement Plans

The CRA distinguishes between accountable and non-accountable reimbursement plans, which is crucial for determining taxability.

Accountable Plans

An accountable plan is one where the employee:

• Must provide detailed records (such as mileage logs, dates, destinations, and business purpose) to support the business use of their vehicle.
• Must return any excess reimbursement not substantiated by expenses.

Under an accountable plan, reasonable mileage reimbursements are generally not taxable. The employer does not include these amounts on the employee's T4 slip.

Non-Accountable Plans

A non-accountable plan is one where the employee:

• Does not have to account for their expenses.
• Is not required to return any excess reimbursement.

Reimbursements under a non-accountable plan are almost always considered a taxable benefit and must be included in the employee's income on their T4 slip. This is because the CRA considers such payments to be more akin to an additional salary rather than a direct reimbursement of business costs.

When Mileage Reimbursements Become Taxable Benefits

Several scenarios can lead to mileage reimbursements being treated as a taxable benefit:

1. Excessive Rates: If an employer pays a per-kilometre rate that is substantially higher than what the CRA considers reasonable for operating a vehicle, the excess amount will be a taxable benefit. For example, if an employer pays $1.00/km when the CRA's benchmark is $0.70/km, the additional $0.30/km might be taxable.
2. Lack of Proper Record-Keeping: If an employee cannot provide adequate documentation (a mileage log, for instance) to substantiate the business nature and distance of their travel, the employer may be required to treat the entire reimbursement as a taxable benefit.
3. Personal Use Covered: Reimbursements that cover personal travel (e.g., commuting between home and a regular place of employment) are always considered a taxable benefit. Only travel directly related to earning employment income is eligible for non-taxable reimbursement.
4. Flat Allowances without Accounting: If an employer provides a flat car allowance (e.g., $500 per month) without requiring the employee to submit mileage logs or expense reports, this allowance is considered a taxable benefit in its entirety, regardless of how much business travel occurred.

Example Scenario: Sarah works for a company in Vancouver and uses her personal car for client meetings. Her employer reimburses her at a rate of $0.80/km. Sarah diligently maintains a mileage log, recording dates, destinations, and the business purpose for each trip. For a given month, she logs 1,000 business kilometres. Her reimbursement is $800. Since $0.80/km is slightly above the CRA's 2024 benchmark of $0.70/km, the employer might need to assess the 'reasonableness' carefully. If the employer can justify that $0.80/km truly reflects the costs in Vancouver, it might remain non-taxable. However, if the CRA determines it's excessive, the difference of $0.10/km, totaling $100 for that month, could become a taxable benefit.

The Role of the T2200 Form: Claiming Actual Expenses

Sometimes, even with reasonable reimbursements, an employee's actual automobile expenses for business use might exceed the reimbursement received. In such cases, the employee may be able to deduct the difference on their personal income tax return. To do this, the employee needs a Form T2200, Declaration of Conditions of Employment, signed by their employer. This form certifies that the employee was required to use their personal vehicle for work and was not fully reimbursed for all expenses.

When claiming actual expenses, employees can deduct a portion of:

• Fuel and oil
• Maintenance and repairs
• Insurance
• Licence and registration fees
• Interest on a car loan (if applicable)
• Capital Cost Allowance (depreciation)

They must meticulously track all expenses and the total kilometres driven for the year, as well as the kilometres driven for business, to calculate the business-use percentage. This method often requires more detailed record-keeping than simply logging mileage for reimbursement purposes.

It's important to note that you cannot deduct both a flat allowance and actual expenses for the same kilometres. If your employer provides a non-taxable allowance (an accountable plan), you generally can't deduct expenses for those reimbursed kilometres. However, if the allowance is taxable, you may be able to deduct your actual expenses against that income using a T2200.

Employer Responsibilities: Structuring Reimbursement Policies

Employers play a crucial role in ensuring their mileage reimbursement policies are compliant with CRA regulations. To avoid burdening employees with unexpected taxable benefits, employers should:

• Establish Clear Policies: Document a comprehensive policy outlining eligible expenses, reimbursement rates, and required documentation.
• Require Detailed Records: Mandate that employees submit detailed mileage logs or expense reports that clearly differentiate business and personal travel.
• Review Rates Regularly: Periodically review their reimbursement rates to ensure they remain reasonable and reflect current operating costs.
• Issue T4 Slips Correctly: If a reimbursement is determined to be a taxable benefit, it must be reported on the employee's T4 slip in Box 14 (Employment income) and Box 34 (Automobile benefit), or in the "Other information" area with code "A" for automobile allowance.

Employee Responsibilities: What You Need to Do

As an employee, it's equally important to understand your obligations:

• Track Your Mileage Diligently: Maintain an accurate and detailed log of all business-related travel, including dates, destinations, purpose of travel, and kilometres driven. Apps like TripLog or MileIQ can simplify this process.
• Understand Your Employer's Policy: Familiarize yourself with your company's mileage reimbursement policy and adhere to its requirements.
• Review Your Pay Slips and T4: Ensure that your mileage reimbursements are not being incorrectly included as taxable income on your pay slips or T4. If you believe there's an error, discuss it with your employer's payroll or HR department.
• Consider Claiming Actual Expenses: If you incur significant business driving expenses that are not fully reimbursed, and your employer provides a T2200, consider calculating your actual expenses to see if you can claim a deduction on your tax return.

Key Takeaways and Practical Tips

• Reasonableness is Key: The CRA's primary concern is whether the reimbursement genuinely covers the cost of using your vehicle for work, not to provide extra income.
• Document Everything: For both employers and employees, thorough record-keeping is the best defense against a taxable benefit assessment. Keep mileage logs, gas receipts, and maintenance records.
• Distinguish Business vs. Personal: Never claim personal travel (like commuting) as business travel. This is a red flag for the CRA.
• Use Technology: Mileage tracking apps can greatly simplify the process of logging your business kilometres accurately.
• Consult a Professional: If you are unsure about your specific situation, especially with complex reimbursement structures or significant driving expenses, consult a tax professional or the CRA directly.

Conclusion

For most T4 employees in Canada, reasonable mileage reimbursements for business travel are not taxable. This understanding hinges on the principles of reasonableness and proper accountability. By maintaining diligent records and ensuring that reimbursement policies align with CRA guidelines, both employers and employees can navigate the complexities of automobile expense reimbursements with confidence. Staying informed about these rules can prevent unexpected tax liabilities and ensure compliance for all parties involved.