If you discover an error after your return has been mailed, you may need to amend your return. The service center will usually correct errors in math or request forms (such as W-2s) or schedules left out. In these instances, do not amend your return!

However, do file an amended return if any of the following were reported incorrectly:

• your filing status
• your total income
• your deductions or credits

Use Form 1040X Amended U.S. Individual Income Tax Return to correct a previously filed Form 1040, 1040A, or 1040EZ. If you are filing to claim an additional refund, wait until you have received your original refund (you may cash that check). To avoid penalty and interest, if you owe additional tax for 1998, you should file Form 1040X and pay the tax by April 15, 1999.

Form 1040X has three columns. Column A is used to show original or adjusted figures from the original return. Column C is used to show the correct figures. The difference between the figures in Columns A and C is shown in Column B. There is an area on the back of the form where you explain the specific changes being made on the return and the reason for each change. If the changes involve another schedule or form, attach it to the 1040X. For example, if you are filing a 1040X because you have a qualifying child and now want to claim the Earned Income Credit, you must attach a Schedule EIC to show the qualifying person's name and social security number. Be sure to enter the year of the return you are amending.

Generally, to claim a refund, Form 1040X must be filed within 3 years from the date you filed your original return or within 2 years from the date you paid the tax, whichever is later.

If you are filing more than one amended return, be sure to mail each in a separate envelope to the service center for the area in which you live. The 1040X instructions list the addresses for the service centers. Forms and publications can be downloaded from this site, or ordered by calling 1-800-829-3676.

Please Note: Your state tax liability may be affected by a change made on your federal return. For information on how to correct your state tax return, contact your state tax agency.

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