Form 1040-X - Amended U.S. Individual Income Tax Return

Yes, if the Return That You Wish to Amend Has Been Filed Electronically, Then Form 1040x Can Also Be Filed Electronically.

You Generally Have to File Form 1040-x Within Three Years From the Date You Filed the Original Return. Alternatively, You Can File Within Two Years From the Date You Paid the Tax, Whichever is Later.

If the Amendments You Have Made Lower Your Tax Liability, Then Yes, You Might Receive an Additional Refund. Whereas if It Tends to Increase the Tax Liability, You Might Owe More Taxes.

No, to Amend More Than One Year's Tax Return, You Have to File a Separate 1040-x Form for Each Year.

You Should File Form 1040-x if You Have Made an Error in Your Original Tax Return. An Error Could Be as Simple as Underreporting Income, Claiming an Ineligible Credit, or Missing Out on Important Deductions.