At McCay Duff,  our job is to simplify your financial transactions.  You can pay your bill using one of the following methods:

Online Banking

  • Add McCay Duff as a payee.
  • You will be prompted to enter your account number, which can be found at the bottom of your invoice. (ex. DL4536AW)


  • Send us a cheque to 979 Bank Street, Suite 210, Ottawa Ontario, K1S 5K5.
  • Please indicate your client and invoice numbers, which are located on your invoice.

Credit Card

  • You may pay your invoice by credit card by either coming to our office or calling our office at 613-236-2367.

Call in Your Credit Card