Form 1040x: What if You’ve Made a Mistake on Your Tax Form?

This post was updated in April 2018

Form 1040x: Amended U.S. Individual Income Tax Return

With all the tax filing that you have to do by a particular due date, you may feel confused and even unsure about the right way to file your return. That’s ok. Tax season always comes with great pressure. The most important thing is to think clearly and fight the temptation to rush through the process; otherwise, you risk making errors. However, if you have already made a mistake, don’t worry. We’ll show you how to fix it using the IRS Form 1040x.

What is the 1040x form?

If you’ve made mistakes on your return, form 1040x can help. This form is a detailed description of all the amendments a taxpayer can use to correct mistakes in their tax returns. Usually, this form serves to fix erroneous information on forms 1040, 1040A, 1040EZ, 1040NR and 1040NR-EZ.

What is the purpose of the 1040x form?

Officially called the Amended US Individual Income Tax Return, form 1040x is designed to inform the IRS about all the mistakes you have initially made on your return and corrections that you’ve subsequently completed. The IRS uses this information to make corrections in the database.

Generally, a taxpayer is given a second chance to change such information as return filing status, income and deductions, number of exemptions, etc.

What other documents must accompany the 1040x 2018 form?

The worst thing about making mistakes on a tax return is that one error triggers problems with other forms. Depending on the reason of changes to the individual income tax return, the taxpayer should attach copies of the forms that have undergone changes.

When is the 1040x 2018 form due?

Generally, a taxpayer is given three years from the moment the original return has been filed to make necessary amendments using the 1040x form. If you have filed earlier, the three year-period starts from your original return’s due date. However, the due date for the amendment return may vary for people who were mentally or physically unable to complete it.

What information should be provided in the 1040x 2018 form?

Before you start filling out the 1040x form, make sure you understand all the instructions. Get ready for the monotonous and tedious process since the return must be filled out on paper and pay close attention to all the fields you are going to complete.
When you are finished, sign and date the form and get it signed and dated by the preparer (if other than the taxpayer) and the spouse (if applicable).

What do I do with the 1040x 2018 form after its completion?

The signed Amended Tax Return and all the supporting documents are forwarded to the Internal Revenue Service for the place where you reside. Don’t wait to file your amended return; go to PDFfiller and start filling it out now, if you need to.



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