You can apply for a SIN on your own if you are 12 years of age or older. If you are under the age of majority in your province or territory of residence (18 in Alberta), your parent or guardian can apply for a SIN on your behalf. To work in Canada or receive government benefits and services, you need a SIN if you are: a Canadian citizen, or a permanent resident, or a temporary resident. To apply, you need a valid primary document to prove your identity and legal status in Canada, such as a birth certificate or Certificate of Canadian Citizenship. For more information, see the Government of Canada's webpage on Social Insurance Numbers. Last Reviewed: November 2019