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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

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.

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


Contact us for information on how we deal with disputes:

  • Telephone: 416-344-1014
  • Toll-free: 1-800-387-0773
  • Fax: 416-344-3600

Businesses – have a question about your account?

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.

WSIB offices

You can call us for information or come see us in person!

Our telephone hours of operation

WSIB representatives are available on the phone from 7:30 a.m. to 5:00 p.m., Mondays to Fridays.

Office hours

Our offices are open 8:30 a.m. to 4:30 p.m., Mondays to Fridays. See a list of WSIB offices

Calling us after hours

To leave a message for a specific WSIB staff person after our regular office hours, please dial their direct 10-digit phone number and leave a message on their voicemail.

If you do not know the person’s 10-digit number, please call 1-800-387-0750 during regular business hours (7:30 a.m. to 5:00 p.m. Monday to Friday) to speak with a customer service representative.

Please note that the WSIB is closed for the following holidays:


New Year’s Day

Tuesday, January 1

Family Day

Monday, February 18

Good Friday

Friday, April 19

Easter Monday

Monday, April 22

Victoria Day

Monday, May 20

Canada Day

Monday, July 1

Civic Holiday

Monday, August 5

Labour Day

Monday, September 2

Thanksgiving Day

Monday, October 14

Remembrance Day

*Monday, November 11

Christmas Day

Wednesday, December 25

Boxing Day

Thursday, December 26

*WSIB offices will be closed on Monday, November 11.


New Year’s Day

Wednesday, January 1

Online services support

For all online services inquiries (such as ePremium, eClearance and eWISR), including support issues, please contact 1-888-243-1569 or 416-344-4122 (TTY: 1-800-387-0050) between the hours of 7:30am to 5:00pm EST, Monday to Friday.

Specific inquiries

Fax it right - avoid processing delays

Avoid processing delays by faxing all WSIB claim-related information, no matter where you live, to 1-888-313-7373 or 416-344-4684. This guideline (83k, pdf) ensures the WSIB receives your claim-related fax efficiently.


If you have a question, you can reach us at 1-800-387-0750 or 416-344-1000, Monday to Friday, from 730am to 5pm.

Media relations

Telephone: 416 344-4202
: media@wsib.on.ca

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Speaker's Bureau

WSIB spokespeople are available across the province to deliver a presentation to your organization on a range of subjects. Request a speaker.

Your privacy is important!

Email is not secure, and could possibly be seen by someone other than a WSIB employee. Please do not include any specific claims or financial information. 

To protect confidential information, case managers and nurse consultants return inquiries by telephone. 

Please note that incoming and outgoing calls may be recorded for quality assurance purposes.

The WSIB Privacy Policy Statements explain more about ensuring your privacy.


Telephone: 1-800-387-0750
Email: compass@wsib.on.ca

Need information on prevention incentive and training programs?

Email: ExperienceRating@wsib.on.ca
Telephone: 416-344-1016 or 1-800-663-6639

Information on Prevention Incentive and Training Programs is also available on this website.

Do you have WSIB policy questions?

Call or email the policy branch that deals with the area related to your question.

Report fraud and non-compliance

You can use our toll-free action line or email address (email does not guarantee protection of your identity) to report suspected cases of non-compliance and fraud.

Call toll-free: 1-888-SI-LEADS (1-888-745-3237) 730am to 5pm, Monday to Friday
Email us at: sileads@wsib.on.ca 24 hours a day, 7 days a week

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WSIB's procurement activity

The WSIB is committed to proactively addressing the challenge of rising costs and fiscal responsibility while maintaining the best possible care for injured workers. Learn more about the WSIB's procurement activity.

Clearance certificates

Contact the Clearance Department at 416-344-1012 or toll-free at 1-800-387-8638. You can also fax us toll-free at 1-877-849-4882.

To help us serve you better, we will need the following information:

  • Principal name, address and account number
  • Contractor name and account number
  • Business activity


Fax to: 1-888-313-7373 or 416-344-4684


Mail to:

Workplace Safety and Insurance Board
200 Front Street West
Toronto ON M5V 3J1


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