@dlcpacfe wrote:
.......can I use the same federal ID number?
Yes. Why would you not use the same EIN for this return? You also must use the same EIN.
Regardless, you can use the 2023 software at this point, but you will have to make manual corrections to the tax forms and schedules with respect to the beginning and ending dates of the tax year.
You will have to print and mail the return.