Report a loss or theft of personal information

By telephone
Québec City area:
418 659-6299
Montréal area:
514 864-6299
Elsewhere in Canada or the United States:
1 800 267-6299 (toll-free)
(Choose option 2 in the main menu.)

Service hours

Monday through Friday:
8:30 a.m. to 4:30 p.m.

See the list of holidays to find out when our client services are closed.


Before accessing your file, we will confirm your identity in order to preserve the confidentiality of the information your file contains.

Please have two of the following documents on hand when you call:

  • your most recent notice of assessment;
  • your most recent notice of determination;
  • your most recent income tax return;
  • any other notice that we recently sent you.

If you do not have the documents on hand, we may not be able to answer your question.

Automatic telex system (ATS) for the hearing impaired

Automatic telex system (ATS)

514 873-4455
Elsewhere in Canada or the United States:
1 800 361-3795 (toll-free)

One mission. Concrete actions.

Read all about how we work to support and inform you. Our vision and values guide us as we carry out our role.

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