SIN / ITN on Acorn

SIN/ITN on ACORN

International Education Centre

SIN/INT and ACORN


Student Accounts Office sent an email to all students requesting that they record their Social Insurance Number (SIN) or Individual Tax Number (ITN) on ACORN prior to January 31, 2022.

This page is to provide you with further information about this request. Please read through carefully to the end. You can learn more about applying for a SIN online and income taxes in Canada at upcoming information sessions offered by Service Canada and the Canada Revenue Agency through the Centre for International Experience. These include a webinar on Social Insurance Numbers and Income tax information sessions.


If you are working in Canada, you will already have a SIN and will likely be required to submit an income tax return. In this case, report your SIN to the University as requested so the tax slips created by the University include your SIN.

If you plan to file a tax return with the Canada Revenue Agency (CRA), please update your SIN/ITN on ACORN under profile and settings. For 2021 T2202 and/or T4a, please update this by January 31, 2022. If you report your SIN/INT on ACORN after January, 31, 2022, wait until the University has updated your SIN or ITN on your T2202/T4A tax slips before filing a 2021 income tax return.

If you are NOT planning to file a tax return with the Canada Revenue Agency, you do not need to update the SIN/ITN on ACORN at this time.

If you are awaiting a SIN/ITN or will apply for one in the future, please update the SIN/ITN on ACORN profile and settings when you receive it. Once ACORN is updated with your SIN/ITN, your T2202 and/or T4a tax forms will be updated.

The $100 penalty for failure to provide a SIN applies to individuals who reside or are employed in Canada and have received a request to provide the information.

For more information please visit: https://www.utm.utoronto.ca/international/financial-resources#SIN