If I submit one W-2, can I submit another one after that like come back onto the app and submit another whole W-2

[DoninGA]

You are not filing a W-2 you are filing a tax return which has the tax data entered from the W-2.  You are required to enter all income received in 2023 on only one 2023 tax return.

If you file the 2023 tax return without all your income, then you would need to file an amended tax return, Form 1040-X to add additional income on the filed tax return.

An amended return, Form 1040-X, can only be printed and mailed to the IRS if the original tax return was not e-filed. The IRS will take up to 20 weeks or longer to process an amended tax return.

Before starting to amend the tax return, wait for the tax refund to be received or the taxes due to be paid and processed by the IRS.

Wait for the other W-2 to be received.  Employers have until January 31, 2024 to provide the 2023 W-2.

The IRS will not start processing tax returns until January 29, 2024.

[xmasbaby0]

NO!!!!!!

Do not file a tax return without ALL of your income documents; you must include every 2023 W-2 on the same tax return.  Employers have until the end of January to issue W-2’s.   Wait until you have all of your W-2’s.  Clients, schools, Social Security, healthcare.gov, banks, mortgage lenders, and other financial institutions may not have tax documents available until late January/early February.  ALL of your tax documents must be entered on the same Form 1040; do not file unless you have entered everything.

The IRS begins to accept/reject 2023 returns on January 29, so there is no hurry to e-file now.

[rjs]

It's not clear what you mean by "submit." You can enter one W-2 in TurboTax, and sign out without filing the tax return. The W-2 that you entered will be saved. Then you can come back later and enter another W-2 in the same tax return. As others have said, do not file the tax return until you have entered all of your income, including all W-2s.