When is your SR&ED filing deadline?
Your SR&ED reporting deadline is 18 months after your fiscal year-end. It's a hard line — miss it and the claim is gone. Enter your year-end below to see the exact date.
Assumption: the SR&ED reporting deadline is 18 months after your tax year-end. Miss it and the claim is statute-barred — there’s no extension.
Source: CRA SR&ED reporting deadline (the 18-month rule).
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How the deadline works
The 18 months run from the end of the tax year in which you incurred the SR&ED expenditures. A December 31, 2024 year-end, for example, gives a June 30, 2026 deadline. The date is statute-barred: the CRA can’t accept a claim after it, so plan the preparation work backward from it, not up against it.
Preparing a claim from scratch in the last few weeks is where defensibility slips — the evidence trail has gone cold. More on SR&ED deadlines
This guide is general information, not tax advice. SR&ED rules, rates and limits change, so confirm the current figures with the CRA or your advisor before you file.