Use this calculator to help you determine your paycheck for hourly wages. First, enter your current payroll information and deductions. Then enter the hours you expect to work, and how much you are paid. You can enter regular, overtime and one additional hourly rate. Withholding schedules, rules and rates are from "IRS Publication 15" and "IRS Publication 15T". This calculator uses the redesigned W-4 created to comply with the elimination of exemptions in the Tax Cuts and Jobs Act (TCJA).