Canada transit number validator

There is no check digit to compute: Payments Canada publishes no check character in the eight or nine digits, so this tool checks structure only, and a plausible wrong number is caught by the receiving institution, not here. The two forms carry the same routing in opposite orders, which is why a misread eight digit string silently names a different bank; if a payroll setup rejects the cheque form, the electronic form is the one direct deposit usually wants. Institution names come from a short dated list checked against Payments Canada sources in November 2026; mergers retire numbers, so an unlisted number is "not listed here", not a bad number.