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@VLCortes wrote:

 

Sorry about that he is now the Ex Husband as Jan 2024.  

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Her Ex's tax guy was the one who told him to claim 100% on his taxes since he is the one who made most the income. 

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I don't know your daughter's situation, but she may be comforted by the fact her ex has a stupid tax guy.  LOL.  😂

Assuming both of them were "covered" on the 1095-A, if they were still married on December 31st, 2023, the 1095-A must be split 50/50.  It is not an option for him to claim 100% and your daughter claim 0%.

Go ahead and file with the 50% allocation for her.

If her ex is ticked off in regard to the 1095-A, he should be ticked off at his tax preparer for doing it wrong.  For this purpose, your daughter owes him nothing.

As a side note, even if they had been divorced by the end of the year, her ex's tax guy still gave wrong advice.