You are deregistering your GST/HST account because you are no longer making taxable supplies

If you stop making taxable supplies you no longer need to be registered. You can ask us to deregister your GST/HST account.

After your GST/HST account is deregistered (closed), you do not charge GST/HST (unless you make a taxable supply of real property) and you cannot claim input tax credits (ITCs). You may also have to pay back some of the ITCs you claimed when you were registered. You may still be able to claim rebates, since you do not have to be registered to do so.

To close your GST/HST account, complete Parts A, B, and E of Form RC145, Request To Close Business Number (BN) Accounts, and send it to your tax services office or call the Business Window at 1-800-959-5525.