SR&ED filing deadline calculator
Calculate a corporation's SR&ED reporting deadline without signing up. Nothing you enter leaves your browser.
Transparent methods
Each tool explains the dates or assumptions used so you can check the result yourself.
Private by default
Inputs are calculated in your browser. These public tools do not save what you enter.
Planning, not tax advice
Confirm filing dates, eligibility and claim positions with a qualified professional before relying on them.
What the deadline calculator covers
The tool adds 18 months to a corporation’s tax year-end and shows the resulting SR&ED reporting deadline. Use it as an early planning date for gathering project records, reviewing expenditures and completing the prescribed forms. It does not replace checking the claimant’s actual filing facts.
The calculation stays in your browser and does not create an account or save the date. Read the filing-deadline guide for the information that must be submitted by the deadline and the limits of late-filed material.
Plan the work before the date
A deadline answers when the claim is due. The claim-process guide explains the preparation sequence, while the T661 workflow shows how SREDlog carries reviewed evidence and amounts into a form draft.