Why not 50/50? But it does not matter as long as combined you do not claim more than 100%. If you both jointly own the home and names on mortgage and deed you deduct what portion you have agreed to. Sometimes the split is not 50/50. Also, each person must have paid the amounts they are claiming on their return. Only the person who paid the mortgage can take the deduction.
You each file as single unless you have dependents. Mortgage interest, Mortgage Insurance, Points and Property Taxes are deductions relating to the home that can be split. You will need to itemize your deductions to claim these expenses.
@heather-besler
[Edited 4/5/2022 at 8:58 AM]
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