Important Notice

Our offices will be closed on Monday, November 11 due to the Remembrance Day holiday.

Contact the OSET


If you have any questions about the appeal process or your file, contact us in one of the following ways:
In person: 655 Bay Street, 14th Floor, Toronto
By telephone: 416-326-1356
TTY: Call the Bell Relay Service at 1-800-855-0511
By fax: (416) 326-2199
Toll-free: 1-866-355-6099
By email: oset@ontario.ca
By mail: 655 Bay Street, 14th Floor
Toronto ON M7A 2A3

Our business hours are Monday- Friday, 8:30 a.m. – 5 p.m.

Best Time to Call

The best time of the day to call is 8:30 - 11 a.m.

The best days of the week to call are Thursday and Friday.

The average wait time is about 8 minutes. When all the lines are busy with other callers, you will get a busy signal.

Map showing location of 655 Bay St.