Simply ask your employer for a new W-4 form to fill out or access the current year's version online. You can update your W-4 at any time if you want to adjust your withholding or record a change ...

Federal Form W-4 is used to help employers collect information needed to ... If the Payroll Department has already started processing the current pay period, any change will be effective in the ...

Form W-4 determines how much tax is withheld from ... that your withholding is equal to the smaller of: 90% of your current year's tax liability 100% of your previous year's tax liability (or ...