Get your taxes done using TurboTax

Seek some legal advice from the attorney who helped you with the divorce.  We cannot give legal advice here.   Your attorney may have some ways to get copies of the return she filed if she put your name and SSN on the return.   And the attorney may be able to get her SSN.   

You say you have used TurboTax for past years.   You can look in your TT account at past returns and find your spouse's Social Security number on the first page of any joint return you filed with her.

Account Recovery

https://ttlc.intuit.com/questions/1901535-forgot-your-turbotax-online-user-id-or-password

You can check to see if the IRS has a transcript of a tax return for 2021 with your SSN on it.  Here are two ways to look:

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

Check your online IRS account.

https://www.irs.gov/payments/your-online-account

Some thoughts:

W-2's come from your employers.   You need to ask your employer(s) for copies of the W-2's that you say your ex-spouse has.   Call, email, snail mail or drop in on a former employer if you need to, and make sure they know where to send your W-2's going forward.

Other ways to get W-2's:

You can get a wage and income transcript from the IRS:  It will not show the actual W-2, 1099’s, etc, but will show the income information the IRS received.  It will not, however, show your state information. It will only show the federal information.

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

Or you can pay the IRS $43 for an actual copy of your past tax return which will include copies of your W-2’s.  This would give you a way to get your spouse's SSN, too.

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

https://ttlc.intuit.com/questions/2561916-how-can-i-get-a-copy-of-my-w-2

You do not say when the divorce was final, so it is difficult to advise you.   Your marital status for a tax return is determined as of December 31 of the tax year, so if you were still legally married at the end of 2021, then your filing choices were to file married filing separately or married filing jointly.   You suspect she filed married filing separately, but do not seem to know that for sure.

There are strict rules to be followed when you file separate returns----and we do not know if she followed those rules.   If you are in a community property state, then it is even more complex to file separate returns.

( Community property states:  AZ, CA, ID, LA, NV, NM, TX, WA, WI )

If you were divorced before the end of 2022, then you can only file  as Single for 2022---not married.  But you only say you are "recently" divorced, so we do not know if you must still file married or single for 2022.

You do not mention if there are children.   So we do not know if child-related credits are at stake.  We also do not know which of you has the children, and which of you is the custodial parent---which could affect your filing status.

And we do not know if you received your stimulus checks for 2020 and/or 2021, which your ex-spouse may have received.   If you did not receive the stimulus checks, they can be entered on returns for 2020 and/or 2021 to get the recovery rebate credit.