Many taxpayers have questions after they file their tax returns. The IRS provides answers to many of them. These are a few of the most common.

* How can I check the status of my refund?

You can go online to check on your refund if it has been 24 hours since the IRS would have received your e-filed tax return or four weeks after you mailed your paper return. Go to www.irs.gov and click on "Where's My Refund?" You will need your Social Security number, your filing status, and the amount of your tax refund.

* What records should I keep?

Keep receipts, canceled checks, or other substantiation for any deductions or credits you claimed. Also keep records that verify other items on your tax return (W-2s, 1099s, etc.). Keep a copy of the tax return, along with the supporting records, for seven years.

* What if I discover that I made a mistake on my return?

If you discover that you failed to report some income or claim a deduction or tax credit to which you are entitled, you can correct the error by filing an amended tax return using Form 1040X, Amended U.S. Individual Income Tax Return.

* What if my address changes after I file?

If you move or have an address change after filing your return, send Form 8822, Change of Address, to the IRS. You should also notify the Postal Service of your new address so that you'll receive any refund you're due or any notices sent by the IRS.