Do I need to enter income tax numbers for all my employees?

Yes, you need to enter income tax numbers for all your employees – specifically before you submit your employer reconciliations during Bi-Annual Filing.

This applies regardless of the type of tax certificate an employee receives.

Checking whether an Income Tax Number has been entered on all employees' Basic Info screen is part of the Filing Information Checklist in the Guide to Bi-Annual Employer Reconciliation.

From February 2026, income tax numbers are mandatory, and employers risk administrative penalties if they fail to comply.