5.14 Remittance Forms
After your first remittance, the CRA will send you a remittance form in the mail for your next remittance and will continue to send you one each time. If you do not receive the remittance form in the mail, you are still required to make the remittance on time, and should accompany it with a letter that contains the information described above, and indicate that you did not receive a remittance form. All late remittances are subject to penalty. Repeated failures to remit will lead to increased penalties.
Keep copies of all your remittance forms.