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:
- What happens to your previously claimed ITCs when closing a GST/HST account?
- Deregistering checklist
- Books and records
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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