Whether you establish or manage a pre-approved debit agreement (ADP) with the Canada Revenue Agency, all agreements must comply with the five-day business rule. The five-day business rule is based on the time it takes to process each payment under a PAD agreement. Non-resident account number – This field applies only to non-resident withholding agreements (part XIII). Enter the full and valid number (z.B. NRx123456). You will find this number on your newsletters, transfer slips or correspondence. You can ask the accountant if he accepts PADs as a means of payment. If so, the invoice liable is required to insert a pre-authorized debit contract that describes the account on which your money is deducted, as well as the amount and frequency of withdrawals. It is important that you have a copy of the agreement in the event of a dispute or if you wish to terminate the ADP.