Residency for spouse or common-law partner

General information

You must tell us if your spouse or common-law partner has a social insurance number (SIN), an individual tax number (ITN) or a temporary tax number (TTN)

Definitions and explanations

Social insurance number (SIN)
The authorized number for income tax purposes under section 237 of the Income Tax Act and is used under certain federal programs.

Temporary tax number (TTN)
An internal number provided by the Canada Revenue Agency to a taxpayer who resides in Canada for income tax purposes but who cannot get a social insurance number.

Individual tax number (ITN)
An internal number provided by the Canada Revenue Agency to non-residents who need an identification number but are not eligible to get a social insurance number.

Yes
You are confirming that your spouse or common-law partner has been issued an authorized number for tax purposes (SIN, ITN or TTN).

No
You are confirming that your spouse or common-law partner has not been issued an authorized number for tax purposes (SIN, ITN, TTN)

Next
This will advance you to the next screen on your way to updating your new marital status.

Previous
Selecting “Previous” will take you back to the “Change my marital status” page.