Your SR&ED filing deadline
For a corporation, the SR&ED reporting deadline is generally 18 months after tax year-end. Enter the year-end to estimate the general date, then confirm it before filing.
Assumption: this calculator applies the general corporation rule of 18 months after tax year-end. Other taxpayer types have different deadlines.
Weekends and holidays: the CRA may treat the next business day as on time when a due date falls on a weekend or recognized public holiday. This tool shows the unadjusted general date, so confirm the filing date before relying on it.
Source: CRA SR&ED Filing Requirements Policy. Confirm the date for your circumstances before filing.
Privacy: this runs entirely in your browser. Nothing you enter is sent anywhere or stored.
How the deadline works
For a corporation, the SR&ED reporting deadline is generally 12 months after the T2 filing due date, which is usually 18 months after tax year-end. A December 31, 2024 year-end, for example, gives a June 30, 2026 reporting deadline. The prescribed information must be filed by that date, so plan the preparation work backward from it.
If the date falls on a weekend or public holiday recognized by the CRA, the next-business-day rule may apply. The calculator shows the unadjusted general date because recognized holidays can depend on the circumstances.
Preparing a claim in the last few weeks can make it harder to collect and review the records created while the work was underway. More on SR&ED deadlines
This guide was checked against the linked CRA and enacted federal sources on August 22, 2026. It is general information, not tax advice, and has not been reviewed by an independent qualified tax professional. SR&ED rules, rates and limits change, so confirm the rules for the claimant's tax year before filing. See our editorial policy.