I just started a new return for my 2024 year. How do I know that I'm doing the correct year?

[xmasbaby0]

Are you using desktop software?  Go to Forms mode and see if the Form 1040 says 2024.

[DoninGA]

When you downloaded the software the tax year you were downloading was shown.

Click on Forms.  When in Forms mode open the form 1040.  The tax year will be shown at the top of the form.

[VolvoGirl]

Online is not open yet for 2024.  Are you using the Desktop program?  In the Desktop program go to Help-About and it will say the year.  Did you download and install the 2024 program and activate it with the 16 digit  License Code?  The shortcut on your computer will say TurboTax 2024.