When you decide to close your business and no longer need your business number (BN), you have to fill in certain forms before the accounts can be closed. If your business is registered in Ontario, go to Registered in Ontario.

Each business account has its own procedures, such as how to meet filing obligations and make payments.

Payroll

Remit all Canada Pension Plan and Quebec Pension Plan contributions, employment insurance premiums, and income tax deductions to your tax centre within seven days of the day your business ends. To find out which one is your tax centre, go to Find a CRA address.

You also need to fill in and file the T4 and T4A slips and summaries electronically or send them to the Jonquière Tax Centre within 30 days of the day your business ends.

For more information, see Changes to your business entity in Guide T4001, Employers' Guide – Payroll Deductions and Remittances.

Close the BN and all CRA business accounts after all the final returns and all the amounts owing have been processed. To close your payroll program account, you can use the "Request to close payroll account" service in My Business Account. An authorized representative can use this service through Represent a Client. You can also fill in Form RC145, Request to Close Business Number Program Accounts.

To access My Business Account or Represent a Client, sign in to your CRA account and select your Business or Representative account from the Welcome page.

GST/HST

For more information, go to Open or manage an account – Close.

Corporate income tax

When you want to permanently dissolve your corporation, you should send an application for dissolution to the government body that governs the affairs of your corporation.

Once the corporation has been dissolved, you should consult Form RC145, Request to Close Business Number Program Accounts, to determine whether you need to fill in that form and send a copy of the articles of dissolution to the CRA. Otherwise, the CRA considers that the corporation still exists and it will have to file a return even if there is no tax payable.

Forms and publications

• Form RC145, Request to Close Business Number Program Accounts
• Guide RC4022, General Information for GST/HST Registrants
• Guide T4001, Employer's Guide – Payroll Deductions and Remittances
• Guide T4012, T2 Corporation – Income Tax Guide

Related links

• Business and industry
• Contact the Canada Revenue Agency
• Innovation, Science and Economic Development Canada
• Related provincial and territorial government sites