Help with W-4

My husband has been claiming me as a dependent marking the box where you multiply time 500 because I have not been employed. I went back to work in August of 2024 on a very part-time basis for which they took no federal taxes out of my small paychecks. Of coarse, this now means we will owe the IRS more money because of it. I would like to work part-time but I don't want to give it all to the IRS. If I work part-time can he still claim the 500.00 credit on his W-4 or does he need to take that off?