I just filed my 2019 taxes on January 1, 2021 because I have found my W2 form. It was lost. I paid TurboTax already. But, am I too late? Should I not have filed online?

[MissMCJ]

Online filing is not working.  You can wait until it opens again, probably around the end of January, or just print, sign, and mail your 2019 taxes.

[SteamTrain]

You cannot prepare or e-file your 2019 taxes using the Online software now.  What is Online now is ONLY for 2020 taxes.

Certainly, if you have a previously prepared 2019 tax file that you printed out, and all data is is correct except for having the physical W-2, you can file them yourself by mail and take to the post Office yourself .....but you cannot e-file 2019 taxes now.

For completeing them if you haven't a copy...read this:

https://ttlc.intuit.com/community/prior-year-return/help/how-do-i-finish-a-prior-year-return-that-i-...

[xmasbaby0]

@MissMCJ No one will be able to just wait for e-filing to re-open and e-file a past year return.  ONLY a 2020 return can be e-filed.  Past year returns have to be printed signed and mailed.  E-filing for 2019 returns closed permanently in October.

The users who use the WRONG software and put 2019 income into the 2020 program might manage to e-file--but then they have just e-filed a completely incorrect return and will spend months going through the amending process.