How to allocate FICA between 2 states?

[Bluerose8]

My husband and I moved from California to Alabama in 2024, becoming AL residents on July 31st, 2024. I am working on our AL state return and it's asking me to allocate which portion of our FICA was paid in AL. My husband's W2 lists the same amount on both the CA W2 and the AL W2 for the FICA amounts (lines 4 and 6 from the W2). How do I determine which portion to list under the AL return? Do I take the FICA total and divide it by 12 months for the year and then enter the amount that 5 months would equal (August-December)? By the way, we are married and filing jointly. Thank you for your time.

[MaryK4 · Accepted solution]

Yes, for the Alabama part year allocation, you can use the percentage of the total you paid while you were an Alabama resident, so the 5 months is correct.  

[Bluerose8]

Thank you so much, @MaryK4! Really appreciate your help!