The amount withheld should be shown in box 2 of Form W-2 or W-2G, and in box 4 of Form 1099-R. Attach Forms W-2G and 1099-R to the front of your return if federal income tax was withheld.If you received a 2008 Form 1099 showing federal income tax withheld on dividends, taxable or tax-exempt interest income, unemployment compensation, social security benefits, or other income you received, include