What should I do if I can't update my National Bank transit number with my service provider?

Certain service providers and suppliers may not yet recognize your new National Bank transit number, which could lead to them rejecting an update to your banking information.

The issue may not be related to your National Bank account. It's possible that the banking information directory used by your service provider or supplier may not yet include your new National Bank transit number. See how you can find your banking information (account, transit, and institution number).

If you're unable to update your transit number, contact us and provide the name of the service provider or supplier experiencing the issue. We will investigate the issue directly with them.

Personal banking clients

Call us at 1-888-835-6281, Monday to Friday from 7 a.m. to 10 p.m. (ET), and Saturday to Sunday from 8 a.m. to 8 p.m. (ET). 

Business banking clients

Call us at 1-888-394-4494, Monday to Friday from 7 a.m. to 8 p.m. (ET).