Why did IRS inform me they did not receive my 2020 return?

[xmasbaby0]

Does the IRS say you did not file a 2020 return or do they say you did not pay your 2020 tax due?  Did they send you a letter?   Your only proof that you paid tax you owed is your own bank or credit card record.

[noblin28]

Received a letter.  I paid the IRS over $9,000.00. 

[xmasbaby0]

I RECEIVED A LETTER FROM THE IRS/STATE

TurboTax does not receive any information from the IRS or your state after your return was filed, so no one at TurboTax knows about a letter you received from the IRS or the state.

(what the letters from the IRS mean)

I GOT A LETTER FROM THE IRS   

https://ttlc.intuit.com/questions/3605673-i-got-a-letter-or-notice-from-the-irs

I AM BEING AUDITED

If you purchased Audit Defense:

https://ttlc.intuit.com/questions/2924451-i-bought-max-or-audit-defense-and-now-i-m-being-audited

AUDIT SUPPORT

TurboTax has a special phone number for help with IRS/state tax letters, which will be easier than going through regular Customer Support.   At the page below, click on the blue button that says "Get Help from TurboTax Support".  Then it will ask you what tax year is your letter.  Then it will ask you what the letter concerns. Then it will show you the phone number during posted business hours.

https://support.turbotax.intuit.com/irs-notice/audit-support/

[VolvoGirl]

Sounds like they got the payment from you but not the return to match it up.  Did you mail or efile your return?  If you efiled log into your account you should see the status and if it was Accepted or Rejected, Started, Printed, Ready to Mail, etc. What does it say?

And download the pdf and there should  be an Electronic Postmark page. Probably near the end. That is your proof and signature. 

How to Access prior year online returns
https://ttlc.intuit.com/community/prior-year-return/help/how-do-i-access-my-prior-year-return/00/270...

If you can't get the side menus to open up to access the prior year..... You need to start entering some basic Personal Info in 2023 for the side menu to open up. Just continue a little ways into 2023. I had to go though about 12 screens.

If you used the Desktop CD/Download program then the only copy is on your computer and not saved or stored online. So you need to make and keep your own backups.