Federal Witholding

The federal income tax is a pay-as-you-go tax. You must pay taxes as you earn or receive income throughout the year.

There are two methods for paying taxes:

If you do not have enough taxes withheld, or you do not pay enough in estimated taxes, you may be subject to a penalty for underpaying your taxes.

If your income is low enough that you will not have to pay income tax, you may be exempt from income tax withholding. You may still be subject to Social Security and Medicare tax withholdings. You can claim an exemption from income tax withholding only if:

For more information, see IRS Publication 501 [PDF]