"Secure Your Identity: Tips for Safeguarding your Social Insurance Number"
Updated: July 2017
Your Social Insurance Number (SIN) is a confidential identification used mainly for income reporting purposes, although some organizations demand it for other reasons. It's crucial to protect your SIN to avoid privacy risks such as identity theft and fraud.
What are the privacy risks associated with the SIN?
The SIN can serve as a gateway for identity theft and other fraudulent activities. When coupled with other personal information, someone with your SIN can impersonate you to:
- - Apply for credit cards and bank accounts in your name
- - Rent accommodations and equipment, leaving you in charge of paying the bills
How can I safeguard my SIN?
- You can protect your SIN by taking the following measures:
- Store your SIN card and other SIN-containing documents in a safe and secure location. Avoid keeping them in your wallet.
- Shred documents containing your SIN and never toss them in the trash bin.
- Only provide your SIN when legally required.
- Take action to protect your SIN in case of fraudulent use.
When am I required to provide my SIN?
A few government departments and programs are specifically authorized to collect SIN. Additionally, some private organizations must obtain your SIN for income-related reporting. Notably, Hydro Québec is legally obliged to collect SIN from Quebec residents applying for Hydro accounts.
When am I not obligated to provide my SIN?
Although some private organizations may demand your SIN for identification purposes, you don't have to provide it if it's not legally required. Service Canada offers examples of situations where you don't have to provide your SIN.
What should I do when asked for my SIN?
We advise you not to provide your SIN to private organizations unless legally compelled to do so. When asked for your SIN, you should:
- - Inquire whether you're required by law to provide it.
- - Ask why the person needs it, how they plan to use it, and to whom they will disclose it.
- - If your SIN isn't essential, inform the person you'd prefer not to use it and provide alternative identification.
- If you can't resolve your concerns with front-line staff, request the contact information for the privacy officer in charge of privacy issues. Discuss your concerns with that person, as they may be able to assist you.
- File a complaint with us if the organization refuses to offer their product or service when you refuse to provide your SIN, and it isn't legally required.
Remember: You can't be refused a service or product for opting out of providing your SIN when there's no legal requirement for it.
What are the obligations of businesses with regards to federal privacy laws?
We advise private businesses against soliciting customers for their Social Insurance Number (SIN) without any legal necessity.
There are no legal restrictions on asking for SIN when there is no legal obligation to do so. Nonetheless, companies must inform clients that revealing their SIN is optional and not a condition for the service.
The Personal Information Protection and Electronic Documents Act (PIPEDA) offers guidelines governing how personal information, including SINs, are managed in commercial activities by private agencies.
The law mandates that companies cannot demand individuals to give consent to the collection, use, or disclosure of their personal data except for specific and legitimate reasons.
Hence, companies must produce proof that acquiring the SIN reflects a legal obligation or that no other identification method would be adequate to carry out the transaction. Otherwise, businesses cannot deny products or services if a client refuses to reveal their SIN.
What are the necessary steps if my SIN number is exposed to fraud?
Service Canada has published extensive guidelines in case a client suspects fraudulent use of their SIN number, which can be found on their website. Also, please visit our information page on Identity Theft and You.
What is the process to obtain a SIN, and what if I lose it?
The general queries about SIN, such as the procedure to apply for it or being able to replace a lost or stolen SIN card, can be answered by checking out Service Canada's website.
It is possible to contact Service Canada online or via phone, their number being 1-800-OCANADA (1-800-622-6232), or visit one of their offices in person, which you can find on their comprehensive Service Canada office directory.
Do you have any queries?
For further information on any concerns regarding your SIN's privacy, contact us.

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