1095-a if dependent has own insurance later in 2024

We use marketplace insurance with a advanced tax credit for myself, spouse and dependent son.  It was only for April until end of year, however the son got a job that provided insurance thus we had him removed after a few months.  Thus, our tax credit advance was lowered. 

 

We received 2 1095-A forms from Washington state.  One had myself and spouse and included columns A, B, and C amounts.  The second one was in my son's name and only had amounts in columns A and B.  Zero in C. 

 

I have read whereas I enter 2 separate line items for each form using the same account number, which Turbotax software does not like.  Then there are the 3 boxes for each item.  I assume I would check box 2 on which form (1 or 2)  then it would ask my son's MAGI.  He was a student with zero income until November where he had his own insurance and an income.  Am I expected to include his income when he was not using marketplace insurance, to my income?  If so, that makes zero sense to me.  Or do I exclude the income when he began working and was off the marketplace insurance?

 

Thanks for your advice