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This document provides instructions for completing Form 1040X, which is used to amend previously filed U.S. Individual Income Tax Returns.
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How to fill out form 1040x

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How to fill out Form 1040X

01
Obtain a copy of Form 1040X from the IRS website or your tax professional.
02
Fill in your current name, address, and Social Security number at the top of the form.
03
Indicate the tax year you are amending in the appropriate box.
04
Complete the 'Part I' section, which requires you to provide information from your original return.
05
In 'Part II', explain the reason for the changes you are making.
06
Adjust the amounts on the form line-by-line as necessary, indicating increases or decreases.
07
Calculate the new total tax liability and the refund or amount due in the respective sections.
08
Attach any necessary supporting documents or additional schedules.
09
Sign and date the form before submitting.
10
Mail the completed Form 1040X to the IRS office indicated in the instructions.

Who needs Form 1040X?

01
Taxpayers who need to correct errors on their previously filed Form 1040, such as income, deductions, or credits.
02
Individuals who need to change their filing status or number of dependents.
03
Those who want to claim a refund for additional deductions or credits that were not filed originally.
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People Also Ask about

You can file Form 1040-X, Amended U.S. Individual Income Tax Return electronically with tax filing software to amend your Form 1040, 1040-SR, 1040-NR, or 1040-SS/PR for the current or two prior tax periods. If amending a prior year return originally filed on paper, then the amended return must also be filed on paper.
If you owe additional tax, file your amended return, and pay the tax by the April due date to avoid penalties and interest. Your return will replace your original return. If you file after the April due date, don't include any interest or penalties on your amended return.
Is there a penalty for amending a return? No, not in most cases. But, if the reason you're amending your tax return is because you made a mistake that means you underpaid the IRS, you CAN owe the IRS money and could face other penalties and interest.
How long do you have to file an amended tax return? The IRS limits the amount of time you have to file an amended return to claim a refund to: within three years from the original filing deadline. within two years of paying the tax due for that year, if that date is later.
Download Form 1040-X from the IRS website.
When mailing your federal amended return, you will need to send the following: 1040-X. Income documents such as W-2's and 1099 forms if they support the changes on the return. Any forms that have a calculation change from the original return. Payments if you do not wish to pay electronically.
The fee for filing an amended tax return can vary significantly, but a general range is between $200 and $1,500. Here is a more detailed breakdown of these costs based on different factors.
There is no penalty for simply filing an amended return. But if your mistake caused you to underpay tax, you will owe that additional tax. If you amend your tax return before the April deadline and pay the remaining tax you owe, you won't have to pay a penalty.

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Form 1040X is a U.S. Internal Revenue Service (IRS) form used by taxpayers to amend their previously filed individual income tax return.
Taxpayers who need to correct errors in their original tax return, such as income errors, filing status changes, or to claim additional credits or deductions, are required to file Form 1040X.
To fill out Form 1040X, taxpayers must provide information from their original return, state the changes being made, and explain the reasons for those changes. The form requires details on the original return, any adjustments, and the corrected amounts.
The purpose of Form 1040X is to allow taxpayers to correct errors or make changes to their tax returns in order to ensure accuracy and compliance with IRS regulations.
Form 1040X requires reporting the original amounts from the filed return, the adjusted amounts, and the reasons for adjustments. It also requires personal information, such as the taxpayer's name, address, and Social Security number.
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