The 5 digit PIN in the File section of the TurboTax program can be any 5 digits you select. They do not have to be the same year after year. What needs to be accurate is the 2023 AGI that is entered from the 2023 Federal tax return Form 1040 Line 11.
See this TurboTax support FAQ for an AGI - https://ttlc.intuit.com/turbotax-support/en-us/help-article/internal-revenue-service/find-last-year-agi/L0SiDtTNI_US_en_US?uid=m9fnyl52