Tax payers can find IRS tax withholding tables through the IRS and E-file websites, according to the sites. The IRS updates information yearly, so taxpayers should use the withholding tables published for the desired year.
Publication 15 provided by the IRS is the Employer's Tax Guide that is updated yearly. The publication contains pertinent information, including income tax withholding, social security and Medicare taxes and information regarding part-time workers, among other information, states the IRS website.
E-file, a tax-preparation website, offers a list of tax rates by year so that individuals can quickly review the tax withholding tables from the past several years. The website also offers important information for tax payers, including tax brackets and effective tax rates for individuals and households.