Contact us


The Workplace Safety and Insurance Board

Telephone: 416-344-1000
Toll free: 1-800-387-0750
TTY: 1-800-387-0050
Fax: 416-344-4684 or 1-888-313-7373

Reporting a new injury, illness or exposure? Submit online.

Sending us a claim document? Upload it.

Head Office
200 Front Street West
Toronto, Ontario M5V 3J1


For fatal or catastrophic workplace accidents, call us at 1-800-387-0750, Monday to Friday 7:30 a.m. to 5 p.m.


Have a question about your account?

Email us at

By using email to communicate with us, you acknowledge that transmitting information by email has a number of risks and it is not possible to completely secure information transmitted over public networks. If you want to receive a reply to your message by email, you need to have a contact that is authorized to send and receive your account information. Read more about communicating by email with the WSIB.

Need to update your address?

Update your business’ physical and mailing addresses online

But, keep in mind that these businesses should continue to contact us to update their address:

  • Schedule 2 organizations
  • Businesses with international mailing addresses
  • Businesses with multiple branch locations

Having trouble with our online services?

If you have an online services account and have a question about using these services you can contact us by:


Phone: 416-344-4122 or 1-888-243-1569

For questions related to a claim, please call us.



Contact us for information on how we deal with disputes:

WSIB Collections Branch

Street address:
P.O. Box 2099 Stn. LCD1 120 King Street West
Hamilton, ON L8N 4C5
Toll Free: 1-800-268-0929
Fax Number: 905-521-4203

Mailing address:

200 Front Street West
Toronto, Ontario M5V 3J1


Media enquiries

Reporting fraud and abuse of the system

If you suspect anyone involved in a WSIB case (person, business, representatives, supplier or health care practitioner) is not dealing honestly with us, you can use our toll-free action line at 1-888-SI-LEADS (1-888-745-3237), Monday to Friday, 7:30 a.m. to 5 p.m. or email us at or contact us confidentially through our website

Legal proceeding documents

You can electronically send us legal documents to be used in a court or legal proceeding involving the WSIB, or in which the WSIB is a party (e.g., application or motion materials).

Website feedback

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