I just realized that I qualified for a tax credit in 2010 but
didn't claim it on my return that year. Is it too late to get the
You have up to three years after the due date of your return to
file an amended return using
. It isn't necessary to refile your whole return -- just note the
changes you're making and include revised copies of any
supplemental forms that are affected (such as Schedule A for
changes to itemized deductions, or Form 8863 for the American
Opportunity Credit). If the change lowers your tax bill, the IRS
will send you a refund. See the
Instructions for Form 1040X
and the IRS's
amended return page
for more information.
Reducing your federal income tax could also lower your state
income tax liability. File your amended federal return first, then
get a copy of the transcript of your account from the IRS
(confirming that you amended your federal return) and file an
amended return with your state, with a copy of your Form 1040X.
Before you file your amended return, go through our list of
Most-Overlooked Tax Deductions
to see if you've missed any other tax breaks.