No.   If you used the same account and user ID, then the second return you prepared overwrote the first one and it is gone for good.  Sorry.. 

If you sent the return to the IRS you can get a copy from the IRS for a fee of $43.

You can pay the IRS $43 for an actual copy of your tax return which will include copies of your W-2’s     

https://www.irs.gov/pub/irs-pdf/f4506.pdf

When you use Online TurboTax, you get one return per fee.  Each return needs its own account and user ID.   If you use the same account and user ID for a second return, you overwrite the first one and lose it forever.

When you use Desktop TurboTax, which you install from a CD or download to your own hard drive, you can prepare and e-file multiple returns for the cost of the software.  You can e-file up to 5 Federal returns—more if you mail the additional ones.  If you have multiple returns to prepare for family members, Desktop is more cost effective.

Desktop --unless you specifically buy federal  Deluxe only from a retailer-- will include the software for one specific state.   You can prepare as many returns for that state as the number of federal returns you prepare.  E-filing state returns is an extra fee which can be avoided by printing and mailing the states.   Additional--other--state software is an additional fee for the software.

https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-start-another-return-in-turbotax-onli...

Hi I over wrote my tax file with my wife by accident. Also my tax has already been excepted .

I purchased the Home and Business Turbo Tax and its installed on my PC I've tried ever thing and cannot restore my tax file, Please advise is there a copy of everything at the IRS since my file has been excepted and if so how do a get a copy of my .tax file?

Sorry if your wife's return overwrote your return then yours is probably gone for good.  Unless you can find a .tax2020 file on your computer for it.  

Maybe you can find a temp file of it.  

If you don't have the main .tax file you might have one that starts with a Tilde sign ~ like  "~your name.tax2020".  That file is if your computer crashes or your real file gets lost or deleted or corrupt so you can restore it.

The .tax and pdf files should be in your Documents in a Turbo Tax folder.  Did you at least save a pdf of your return when you finished?

Otherwise get a copy from the IRS.  It won't be a .tax file.  You can request a transcript from the IRS

https://www.irs.gov/individuals/get-transcript