If you plan on working, accessing government programs and benefits or filing a Canadian tax return, you will need to add your Social Insurance Number (SIN) or Individual Tax Number (ITN) to ACORN.
U of T asks for this number because your SIN or ITN needs to appear on the tax forms that the university provides to you. If you are not eligible or required to file a Canadian tax return, then you also do not need to enter your SIN or ITN. Visit the Student Accounts website to learn more about the SIN, ITN, and who needs to add one to ACORN.
- If you have determined that you need to add your SIN or ITN to ACORN, first go to the Profile and Settings page.
- From the Profile and Settings page, go to the Social Insurance Number (SIN) area from the navigation beneath the Profile and Settings heading.
- If you have already added a SIN or ITN to ACORN, the last three digits will be displayed. If you have not, you will see “None”. The full number will not be displayed in ACORN after you save it in order to protect your privacy. To add a SIN or ITN for the first time, select the Add SIN or ITN button.
- On the next page, you can enter your SIN or ITN. Even if you entered one previously, you will need to re-enter it. Your SIN or ITN should be nine digits long. You do not need to add spaces or hyphens.
- After saving, you will be taken back to the SIN page, and a success message will display. You can edit your SIN or ITN at any time by selecting the Edit SIN or ITN button.
SIN or ITN Errors
ACORN may tell you about errors that need to be resolved before saving your SIN or ITN. If you encounter an error, the issue will appear at the top of the form. These are examples of errors that you might encounter:
- The SIN or ITN field was left empty. If you try to save without adding a SIN or ITN, ACORN will not let you.
- The SIN or ITN entered is not valid. There may be a typo, so please check that you entered the number correctly.
- If you encounter any other errors, please reach out to your registrar for assistance.