Old age security mailing address

The mailing address for Old Age Security (OAS) in Canada is:

Service Canada Old Age Security P.O. Box 7000 Ottawa, ON K1A 0K3

You can also contact Service Canada by phone at 1-800-277-9914 or by visiting their website at www.servicecanada.gc.ca.

If you are a recipient of OAS and need to update your address, you can do so by:

• Visiting a Service Canada office
• Calling the OAS office at 1-800-277-9914
• Completing the "Change of Address" form (available on the Service Canada website) and mailing it to the address above

It's important to note that you should notify Service Canada of any changes to your address as soon as possible to ensure that you continue to receive your OAS benefits.