If I have to mail my amended tax return for 2021, what should be included?

[K_K_777]

If I have to mail my amended tax return for 2021, what should be included?

The only thing I changed is to apply one more deduction (QBI). Shall I mail all the forms? or just 1040-X?

[DawnC · Accepted solution]

When filing an amended or corrected return:

• Include copies of any forms and/or schedules that you're changing or didn't include with your original return. You will be including Form 8995 or 8995-A for QBI.
• To avoid delays, file Form 1040-X only after you've filed your original return. Generally, for a credit or refund, you must file Form 1040-X within 3 years after the date you filed your original return or within 2 years after the date you paid the tax, whichever is later.
• If you file an amended or corrected return before the due date for the original return, the amended return will replace or supersede the original return. Filing a superseding return and paying any additional taxes owed may allow you to avoid interests or penalties.
• Allow the IRS up to 16 weeks to process the amended return.

[K_K_777]

hi @DawnC , Thank you so much for the information.

I have one more question. I filed my 2021 tax return on March 15th 2022. And paid the owed amount on April 2 2022. 

Today is March 22, 2024. As far as I understand, I should be able to make amendments as long as I mail the form to the IRS before April 2. Is that correct?

Thanks in advance.

[LeticiaF1]

You have until April 15th, 2025 to file this return.  You can also electronically file it instead of mailing it. To amend your return using TurboTax Online:

1.  Sign in to TurboTax.
2. On the Tax Home screen, scroll down to Your tax returns & documents
3. Select the year you want to amend.
4. Select Amend (change) return, then Amend using TurboTax Online.
5. On the screen OK, let's get a kickstart on your amended return, 
6. Select the reason(s) you're amending and Continue.
7. When you reach Here's the info for your amended federal return
8. Select Start next to the info you need to change.
9. Continue through the screens, make the changes you need to make, and carefully answer the remaining questions to finish amending your return.

For more information on filing a prior year amended return see the TurboTax help article:

How do I amend my federal tax return for a prior year?

@K_K_777 

[K_K_777]

Thank you for your response.

I did exactly what you mentioned. But Turbotax doesn't support 2021's return. Have to mail the paper doc.

https://ttlc.intuit.com/community/after-you-file/discussion/re-tried-to-amend-2021-tax-and-efile/01/...