Found my answer - slight changes to tax brackets effective July 1 from 2018 budget.

Hi ,

Are you a Sage 50 CA user with payroll in Ontario?

IMPORTANT NOTE:

The recently elected Ontario government has decided to roll back the tax changes planned for July 1st in Ontario. Our Tax Table update was already created and it was too late for us to go back. Therefore, we are going ahead with the July 1st update for everyone and still recommend that all clients install the 2018.3 update. Our research and development team has issued the following:

Sage 50 CA 2018.3 Hotfix

Thank you Erzsi, I installed the fixed and recalculated all paycheques.  

Thank you Erzsi, I installed the fixed and recalculated all paycheques.