Deregistering (closing) your GST/HST account

There are circumstances where you would want to close your GST/HST account. You need to give us a reason why you no longer need a GST/HST account.

Before you close your GST/HST account, you should read:

To close your GST/HST account you will need to complete Form RC145, Request to Close Business Number (BN) Program Accounts and send it to your tax center or call the Business enquiries at 1-800-959-5525 .

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