Taxpayer TIN in the Return Header must not be the same as a TIN of a previously accepted electronic return for the return type and tax period indicated in the tax return?

[marissafaith1]

I was rejected when I filed an extension and this is the reason why? Can someone help?

[Opus 17]

If that is the reject reason on an extension, then you or someone else already filed a tax return in your name.  Did you try to file already?  Did a spouse maybe file a joint return by mistake and you are trying to file a separate return?  Are you trying to file a second tax return from the same online account (each online account can only file one return.)

If no to all these, you might be a victim of identity theft.

[marissafaith1]

No to all of those. I just thought about it..could it be because I was married this year and and I have already change my last name with social security. Do I need to file extension with my new last name even though my maiden name is on my 1099s?

[Opus 17]

File all your income tax forms using the name currently on file with the social security administration, even if your previous name is on your 1099s or W-2s.  

[carr1nfam1lyseven]

Could be that a tax office you have used in the past automatically extended all their clients and you were among them.

I've worked for a CPA firm that transferred ownership. The old owners would update all the past clients they had ever done tax returns for each year, whether the clients came back or not. That's not a big deal, it just means the office was ready to file any of the past clients.  

Well, when the new owners bought out the practice they didn't know who was coming back or not and so they extended EVERYONE'S return so no one would have a late-filed return. In the second year, the new owner only updated the clients that were actively using their service. 

I have a similar issue this year with new clients of mine. Their old tax preparer didn't know if they were coming back and they filed the extension on April 15, 2021, instead of waiting until May 17, 2021. (2021 is a crazy tax season.) It's May 15 and I am getting that same reject on their returns.