This tool assumes you have already determined the payment is to a self-employed contractor. It does not decide whether your worker is an employee or a contractor.
Last verified: June 12, 2026. Source: Canada Revenue Agency, "T4A slip — Information for payers." The $500 threshold reflects CRA administrative policy and may change.
Working out what a contractor or load actually costs? Use the Canadian Dispatcher Fee Calculator and the Canadian Load Profitability Calculator.
Tracking your own kilometres for CRA? The CRA Mileage Calculator applies the 2026 prescribed per-kilometre allowance rates.
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When is a T4A generally required?
If you pay a self-employed contractor, CRA's administrative policy is that a T4A slip is generally required when the total you paid that contractor exceeds $500 in a calendar year, or when any income tax was deducted from a payment to them — regardless of the amount. This calculator does nothing more than apply those two bright-line conditions to the figures you enter, so you can see at a glance whether a T4A is likely in play before you talk to your accountant or CRA.
It is deliberately narrow. It does not decide whether your worker is an employee or a contractor — a separate and important question — and it does not touch Driver Inc. or personal-service-business status, tax amounts, GST/HST, or filing mechanics. Those are determinations for you and a qualified advisor, with CRA as the authority.
| Condition (CRA administrative policy) | Result |
|---|---|
| Total payments to the contractor exceed $500 in the calendar year | T4A generally required |
| Any income tax was deducted from a payment (any amount) | T4A generally required |
| Neither condition met, based on your inputs | Threshold not met based on your inputs |
Box 020 (self-employed commissions) and Box 048 (fees for services) are the T4A boxes most often associated with contractor payments; they are shown here only as informational labels. The $500 figure is CRA administrative policy and can change — always confirm the current requirement and your specific situation with CRA or a qualified tax advisor.
Frequently Asked Questions
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