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.

Calls from anywhere in Canada and the United States

Individuals1-855-284-5942
Non-resident corporations and corporation accounts1-855-284-5944
Non-resident trusts
1-855-284-5942
Part XIII tax and Non-resident withholding accounts1-855-284-5946

Calls from outside Canada and the United States

(We accept collect calls by automated response. Please note that you may hear a beep and experience a normal connection delay.)

Individuals1-613-940-8495
Non-resident corporations and corporation accounts1-613-940-8497
Non-resident trusts
1-613-940-8495
Part XIII tax and Non-resident withholding accounts1-613-940-8499

Fax numbers

Individuals1-613-941-2505
Non-resident corporations, corporation accounts, and trusts1-613-952-3845
Part XIII tax and Non-resident withholding accounts
1-613-941-6905

Hours of telephone service

Individuals and non-resident trusts – within Canada and the U.S.A.
8:15 a.m. to 5:00 p.m. from Monday to Friday (local time)

Individuals and non-resident trusts – outside Canada and the U.S.A.
6:45 a.m. to 8:00 p.m. from Monday to Friday (Eastern time)

Non-resident corporations and corporation accounts – within Canada and the U.S.A.
8:15 a.m. to 8:00 p.m. from Monday to Friday (local time)

Non-resident corporations and corporation accounts – outside Canada and the U.S.A.
7:15 a.m. to 6:00 p.m. from Monday to Friday
(Eastern time, year-round)

Part XIII Tax and non-resident withholding accounts
7:15 a.m. to 6:00 p.m. from Monday to Friday
(Eastern time, year-round)

Part XIII Tax and non-resident withholding accounts – outside Canada and the U.S.A.
7:15 a.m. to 6:00 p.m. from Monday to Friday
(Eastern time, year-round)

International Tax Services Office addresses and fax numbers