Changes to a businessWhen your business changes, it’s important to let the WCB know about it. Business changes can affect your coverage, claims cost experience, industry classification, rate and WCB premiums. This page provides guidance on how to report various business changes and how they might affect your WCB coverage and rates. Closing or selling a businessLearn moreUpdating my business activitiesLearn moreBuying, merging or amalgamating a businessLearn moreChanging contact information for a businessWhen you first registered your employer account with the WCB, the person registering it was automatically listed as your authorized contact. Your authorized contact has access to your WCB information and can make changes to your account information.We encourage you to review your designated WCB contacts before a significant business change occurs. Subject to certain exceptions permitted by law, only the current authorized contacts can make updates or be given access to account information for the business. Your information is treated as private and confidential, and the WCB is bound by confidentiality policies to safeguard your account information.Some employers find it useful to have more than one authorized contact. An authorized contact is typically an owner of the business, a director of the corporation or a trusted employee. You can add one or more authorized contacts at any time by either contacting our office or providing the WCB with a signed authorization that includes the following:Employer’s legal name, address and contact information (phone, fax, email)Employer’s WCB account numberThe authorized contact’s name, address and contact informationThe types of information (claims, assessment or both) for which access is being givenThe effective date access is being given to the employer’s file informationYour name, title, signature and contact information (if you’re requesting to add the contact)If you’d like an external party to have access to your information, such as an advocate or consultant, you can provide access by following the same process you use to add additional authorized contacts. In addition, an external party’s access must be renewed by the employer every two years. If you do not renew the external party’s access, it will lapse automatically.Please note that if there are multiple employer accounts, a separate authorization letter is required for each account.Contact informationTo update your account contacts anytime throughout the year, contact our Assessment Services Department.Related links