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Service Canada may request proof of income to confirm your GIS eligibility. The form is not a tax return, not an audit, and not a request for new financial information.
It is a signed confirmation that the information on file matches your current situation. Most recipients never receive the form because their tax filing is current and matches the Service Canada record.
Those who do usually have a discrepancy between Service Canada and CRA records — most often a marital status change that was reported to one agency and not the other.
Who receives the form and what it asks
Only GIS recipients receive this form. It is sent annually, usually in the fall, when a file is flagged for verification: a recent marriage or divorce, a change in marital status, a recent address or banking change, or a missing tax filing for the prior year.
The form is a single page asking for your name, date of birth, OAS or GIS number, current address, current marital status, and a signed confirmation that the income information on file is correct.
It does not ask for your tax return, notice of assessment, or any supporting documents unless specifically requested.
How to respond (and what if you haven’t filed)
Log into My Service Canada Account, open the message that references the request, complete the fields (name, address, marital status, signature), and submit electronically. Confirmation arrives by email within minutes; the change is processed within 2 to 4 weeks.
If you cannot access the online system, mail the form to the address printed on the request — allow at least 14 business days, or use registered post if you are within 30 days of the deadline.
The deadline is a hard cutoff with no grace period; late responses are treated the same as no response and trigger an automatic suspension.
If you have not filed taxes for the prior year, Service Canada cannot verify your income and the GIS is suspended. The form gives you a chance to catch up.
File the missing return and respond, or respond indicating you have no income to report. Either way, respond before the deadline. If you do not respond, the GIS is suspended and reinstatement requires proof that the issue is resolved, plus a separate request to recover any missed payments during the suspension period.
Next step in the guide
If the form arrives unexpectedly, or the income amount is not what you expected, there may be a larger mismatch — usually a change in marital status that was not updated with Service Canada, or a missing tax filing.
The next step covers the most common follow-up: GIS renewal. If your proof of income is up to date, you are ready for the annual renewal. See the 2026 update on GIS renewal in 2026 →
Why did I receive a proof of income form if I already filed taxes?
Do I need to send my tax return with the form?
What if my marital status changed during the year?
Is this guide an official Service Canada publication?
Independent guide. Not affiliated with Service Canada or the Government of Canada. All figures are estimates for 2026 and may change quarterly. Confirm current procedures on the official site at canada.ca/service-canada before acting on any information here. Form names, deadlines, and procedures may change without notice.