Invoice or retainer payments can be made by credit card through our secure online payment gateway.
If you are paying an invoice, please select Pay Invoice. If you are paying a retainer, please select Pay Retainer. Currently selected tab is highlighted in blue.
Pay Invoice - Step 1
Pay Retainer - Step 1

Mississauga Head Office
3 Robert Speck Parkway, Suite 900
Mississauga, ON L4Z 2G5
Tel: 905.276.9111
Fax: 905.276.2298
Burlington
3115 Harvester Rd., Suite 400
Burlington, ON L7N 3N8
Privacy Policy | Accessibility Policy | © 2025 Keyser Mason Ball, LLP All Rights Reserved.