Follow the steps to successfully complete your Canada NAS-2120 application.

1. Click ‘Get Form’ button to obtain the form and open it in the editor.
2. Gather original proof-of-identity documents. You must have primary proof-of-identity documents such as a birth certificate or citizenship certificate. Make sure photocopies are not included as they are not accepted.
3. Complete the application form by filling items 1 to 13, except for the optional gender information. Make sure the listed parent names do not repeat and sign the form in blue or black ink. Remember that specific signing rules apply based on the applicant's age.
4. If applicable, prepare additional documents required for representatives or if you are applying on behalf of someone else. Ensure all necessary documents are included and in the original format.
5. Mail the completed and signed application form along with original proof-of-identity documents to the Social Insurance Registration Office. Utilize a secure mailing method to protect your information and ensure your application is received.
6. After mailing, wait for your SIN to arrive by mail within 20 business days. If there’s an issue with your application, ensure you provide all necessary documents to avoid any delays.

Start filling your Canada NAS-2120 application online today to ensure you secure your Social Insurance Number efficiently.