Tax Tip: Taxability of Social Security Benefits
Generally, if Social Security benefits were your only income, your benefits are not taxable and you probably do not need to file a federal income tax return. If you received Social Security benefits plus other income, the answer to how much, if any, is taxable can be found in the worksheet in the Form 1040 or 1040A instruction book.
For a quick computation, add one-half of your Social Security benefits to all your other income, including tax-exempt interest. If this amount is greater than the base amount for your filing status, a part of your benefits will be taxable.
The 2003 base amounts are:
- $25,000 for single, head of household, or qualifying widow/widower with a dependent child
- $25,000 for married individuals filing separately who did not live with their spouses at any time during the year
- $32,000 for married couples filing jointly
- $0 for married persons filing separately who lived together
For additional information on the taxability of Social Security benefits, see IRS Publication 915 , Social Security and Equivalent Railroad Retirement Benefits. Publication 915 and Form W-4V, as well as the 1040  and 1040A instructions , can be downloaded from the IRS Web site  or you can order your free copy by calling toll free 1-800-TAX-FORM (1-800-829-3676).