How to check if the Payroll update is installed

When you install the payroll update, Sage 50 Accounting updates the Payroll Taxes Effective field in Help, About.

Open a Sage 50 company.
Go to Help, then About Sage 50.
Select Support Info.
The taxes are valid as of the Payroll Taxes Effective date. This date must be either January 1 or July 1 of the current year.