International tax and non-resident enquiries

For questions about GST/HST, please see Non-resident GST/HST enquiries. For questions about Corporation Internet Filing, please see Corporation Internet Filing Help Desk Hours of Service. For all other questions, see the telephone numbers below.

Office address:

1050 Notre Dame Ave
Sudbury ON  P3A 5C1
Canada

Mailing address:

International tax and non-resident enquiries
Post Office Box 20000, Station A
Sudbury ON  P3A 5C1
Canada

Non-Resident Withholding Division
Sudbury Tax Center
Post Office Box 20000, Station A
Sudbury ON  P3A 5C1
Canada

Calls from anywhere in Canada and the United States

Individuals and non-resident trusts 1-800-959-8281
Non-resident corporations and corporation accounts
(including sole proprietors, partnerships, self-employed individuals, payroll accounts and GST/HST enquiries)
1-800-959-5525
Part XIII tax and non-resident withholding accounts 1-855-284-5946

Calls from outside Canada and the United States

(We accept collect calls by automated response. Contact your service provider or operator to initiate the collect call. You may hear a beep and experience a normal connection delay.)

Individuals and non-resident trusts 613-940-8495
Non-resident corporations and corporation accounts
(including sole proprietors, partnerships, self-employed individuals, payroll accounts and GST/HST enquiries)
613-940-8497
Part XIII tax and non-resident withholding accounts 613-940-8499

Fax numbers

Individuals 1-613-941-2505
Non-resident corporations, corporation accounts, and trusts 1-705-671-0490
Part XIII tax and non-resident withholding accounts 1-705-677-7712 or 1-866-765-8460

Hours of telephone service

Individuals and non-resident trusts – within Canada and the U.S.A.
9 am to 5 pm (local time) from Monday to Friday (except holidays).

Extended hours for tax filing season From February 26 to April 30, 2018, telephone agents will be available Monday to Friday (except holidays) from 9 am to 9 pm (local time) weekdays, and from 9 am to 5 pm (local time) on Saturdays (except Easter weekend).

Individuals and non-resident trusts – outside Canada and the U.S.A.
9 am to 5 pm (Eastern time) from Monday to Friday (except holidays).

Extended hours for tax filing season From February 26 to April 30, 2018, telephone agents will be available Monday to Friday (except holidays) from 9 am to 9 pm (Eastern time) weekdays, and from 9 am to 5 pm (Eastern time) on Saturdays (except Easter weekend).

Non-resident corporations and corporation accounts – within Canada and the U.S.A.
9 am to 6 pm (local time) from Monday to Friday (except holidays)

Non-resident corporations and corporation accounts – outside Canada and the U.S.A.
9 am to 6 pm (Eastern time) from Monday to Friday (except holidays)

Part XIII Tax and non-resident withholding accounts – within Canada and the U.S.A.
7:30 am to 6 pm (Eastern time) from Monday to Friday (except holidays)

Part XIII Tax and non-resident withholding accounts – outside Canada and the U.S.A.
7:30 am to 6 pm (Eastern time) from Monday to Friday (except holidays)

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