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This form is used to amend a previously filed U.S. individual income tax return. Taxpayers use it to correct errors, change filing status, or adjust claims for deductions and credits.
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How to fill out 1040x

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How to fill out 1040X

01
Obtain Form 1040X from the IRS website or your tax software.
02
Fill out your personal information including your name, address, and Social Security number.
03
Indicate the tax year you are amending at the top of the form.
04
Complete Column A with figures from your original Form 1040.
05
Complete Column B with the corrected amounts.
06
Calculate the difference and fill in Column C with the changes.
07
Provide an explanation for the amendments in Part III of the form.
08
Attach any necessary documents that support your changes.
09
Sign and date the form before submitting it to the IRS.

Who needs 1040X?

01
Taxpayers who need to correct errors on their original tax return.
02
Individuals who need to claim missed deductions or credits.
03
Those who need to report changes in income or filing status after filing their original return.
04
Taxpayers who want to amend their return for any other reason to ensure accuracy.
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An amended return captures all the original information when you first filed but includes anything you needed to change. To get those new details to the Internal Revenue Service (IRS), you'll use Form 1040-X, Amended U.S. Individual Income Tax Return, and follow the instructions.
abbreviation for Internal Revenue Service: the US government department that is responsible for calculating and collecting taxes: The IRS grants tax exemptions for charities and community organizations.
In 1943, the "pay-as-you-go" system of tax withholding began. In 1953, the Treasury Department completed a reorganization of the Bureau of Internal Revenue, reforming it as a service agency under the name Internal Revenue Service (IRS).
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.
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.
: abbreviation for Internal Revenue Service: the U.S. government department that is responsible for calculating and collecting taxes: The IRS grants tax exemptions for charities and community organizations.

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Form 1040X is the Amended U.S. Individual Income Tax Return, used to correct errors or make changes to a previously filed tax return.
Anyone who needs to amend their tax return to correct errors, such as misreported income, filing status, deductions, or tax credits, is required to file Form 1040X.
To fill out Form 1040X, you need to provide personal information, indicate which tax return you are amending, detail the changes being made, and provide a summary of the adjustments.
The purpose of Form 1040X is to allow taxpayers to correct previously filed tax returns, ensuring that the correct information is reported to the IRS.
On Form 1040X, you must report your previously filed amounts, the corrected amounts, and the reasons for the changes, including necessary supporting documentation.
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