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How to File IRS Form 1040-X | Amending Your Tax Return
Tax Strategy & Planning

How to File IRS Form 1040-X | Amending Your Tax Return

Filing taxes can be difficult and stressful and even the most careful taxpayers tend to make mistakes. If you notice that your tax return has an error, or you get an updated form after filing, don’t worry!. The IRS gives you the ability to amend your return by using 1040-X Form, Amended U.S. Individual Income Tax Return. Knowing the most effective strategy to file a form can help you avoid penalties, maximize refunds, and most importantly, have accurate records.

By George DimovPublished 5 min read
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Section 01

Introduction to Form 1040-X

IRS taxpayers use 1040-X Form to amend any income tax return they have already filed to document changes to income, losses, or gains. Within this context, you are permitted to make changes to the income claimed, the deductions that were claimed, or the filing status.

However, not n all changes can be made with this form. For example, simple math mistakes are not changes that need a 1040-X because the IRS usually handles them. More significant changes that could lower your tax refund or increase your tax due need Form 1040-X.

Section 02

Common Reasons to File Form 1040-X

Most taxpayers realize they need to amend something after they have submitted their return. You may need to file a 1040-X if:

Information that supports income should not be lost, and records should be made available to show the IRS every bit of documentation they may need to see.
Planning on changing your tax status (ex: single to head of household).
You have to add or take dependents off of your tax forms.
Desire to claim an unreported income or an unclaimed tax benefit (like the Earned Income Tax Credit).
Need to correct mistakes that also impact your state tax return.

Section 03

Eligibility and Time Limits

Everyone can’t File Form 1040-X and the timing is important. Primary rules include:

General Deadline

You have three years from the date you filed the original return or two years from the date you paid the tax, whichever is later.
Exceptions: Unique situations like a refund for uncollectible receivables, or a net operating loss, might allow more time.

Who Can File

Anyone who filed a 1040, 1040-SR, or 1040-NR can amend their return if necessary.

Section 04

Step-by-Step Instructions

There is more to a 1040-X than just the form. The correct steps to do it are presented below:

  1. 01
    Go to the IRS site to download Form 1040-X or, if you qualify, complete the form via IRS e-file.
  2. 02
    Gather your original return, your corrections, and any associated new forms (W-2, 1099, etc.).
  3. 03
    Part III is very important. All parts of the form should be completed, but special mention should be made of the changes made and any other things that need more explanation.
  4. 04
    Any forms or schedules that should be changed with the amendment should be attached.
  5. 05
    This form can be mailed or e-filed if the tax program supports that feature.
  6. 06
    “Where’s My Amended Return” is an IRS tool that allows the user to track an amended return.

Section 05

Timeline and Processing Delays

Making changes to a return takes a significant amount of time, it is important to understand the following: 

On average, the IRS takes 20 weeks to finish Form 1040-X.
Amended return refunds do not get direct deposits, and instead are sent via check.
E-filed returns usually take less time than mailed returns, which are much slower in comparison.

Section 06

Common Mistakes to Avoid

When making changes to a tax return, problems always come up. These mistakes are the most common:

  • Part III of the form does not have an explanation attached.
  • Unsimplified forms and schedules are attached to the amendment.
  • Making changes to changes that the IRS has already made.
  • Waiting too long to file, in this case the 3-year mark.

Having a tax return amended is a very complex feeling to have and it does not have to be that way. Book a consultation and let our professional team assist you with the 1040-X increase in amount.

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Frequently asked questions

FAQs

It is used to correct a previously filed tax return, like income or deductions and credits or filing status.

Processing typically takes up to 20 weeks, sometimes longer during peak tax season.

Yes, most amended returns for 2019 and later can be filed electronically using IRS e-file.

Yes, if your federal changes affect your state taxes, you will likely need to file a state amendment too.

It is possible. You can file multiple amendments, but each must have a separate 1040-X form.

Include supporting forms or schedules related to the changes, like W-2s or 1099s.

Use the IRS tool “Where’s My Amended Return?” available online or by phone.

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