A QuickBooks payroll tax table update installs the latest federal and state rates so paychecks calculate withholdings correctly. In QuickBooks Desktop, go to Employees > Get Payroll Updates, tick Download Entire Update, and click Update, then restart and confirm your tax table version. You need an active payroll subscription and an up-to-date QuickBooks release. QuickBooks Online Payroll updates automatically, though state unemployment rates in Desktop still need manual updating.