Skip to main content
CBS supports multiple pay types, including regular salary, hourly wages, bonuses, and tips. The withholding calculation method depends on the calculator used. Each calculator applies a specific method for federal and state withholding. The following calculation methods are used by CBS:
  • Annualized: Annualizes the gross pay, calculates tax on the annualized amount, and then converts the tax amount back to a per pay period withholding amount.
  • Flat: Calculates withholding on special wage payments, such as bonuses, by using supplemental tax rates.
  • Current aggregation: Uses the current period paycheck amount to apply the correct withholding rates to special wage payments, such as bonuses.
Use the following table to identify which calculation method applies to a specific calculator.
CalculatorFederal Calculation MethodState Calculation Method
Salary, Hourly, 401(k), 403(b), Final pay, Stock option, and TuitionAnnualizedAnnualized
Flat bonusFlatFlat
Aggregate bonusFlat or current aggregation for bonus amounts
Annualized for gross pay amounts		Current aggregation for bonus amounts
Annualized for gross pay amounts
Gross-upFlat or current aggregation
Annualized, for gross pay YTD if provided		Flat or current aggregation
Annualized, for gross pay YTD if provided
Tax tipAnnualizedAnnualized