How do I start my second 2023 return in Turbotax desktop?

[Cynthiad66]

You can e-file 5 tax returns using the same TurboTax Desktop software. If you use TurboTax Online to file multiple returns, each tax return will need its own Intuit Account with a unique user ID and password. Plus, each tax return will be subject to its own fees.

[OldArch]

If you're using desktop version, just click on File, choose New Tax Return (or type Ctrl-N). You probably want to save the one you're currently working on and make sure you give the new file a new name that will indicate what it is.