I discovered that my payroll taxes are not calculating correctly.  I had to do it manually on Canada Revenue website (PDOC) at the start of the new year because I noticed Sage was not taking off enough taxes compared to previous years payroll.  I am working on payroll again and I had to resort to the PDOC again this pay period because it is still incorrect.  The person is EI exempt.  

2021 Calculations compared:

Sage Calculations: CPP $76.75 - Income Tax  $106.09

PDOC calculations:  CPP $84.70 - Income Tax $278.97

I tried calling customer support but there is no help available.  Now I am worried that all my employees calculations for the last two pay periods are incorrect!