Oops! Did you determine that you made an error on an income tax return that you already filed? It's not unusual. That's why the IRS has a special form that will fix it.
Maybe a 1099 that you had forgotten about came in after you'd filed your income taxes for the previous year. Or a big business deduction slipped your mind. Or as you glanced through your return before filing it, you noticed that one digit in your Social Security number was incorrect.
Sometimes, post-filing errors are your own fault and sometimes not. Whatever the reason, you should file an amended return as soon as you discover the error, because it takes some time to get it processed. The IRS recommends you file a Form 1040X when you need to register a change – or changes -- in your filing status, income, deductions, or credits. [MORE] . . .