Deductions & credits

Th only thing to enter about your mother's house would be the property taxes paid, and only the person who actually paid the property tax can enter that on a tax return.   Unless you are the one who paid the tax, you cannot enter it on your return.   If your mother paid her property tax, she can enter it.   And....unless your mom  has enough other itemized deductions like mortgage interest ("house is paid off"), medical expenses, charity donations, etc. to exceed her standard deduction, entering property tax would have no effect your mother's refund or tax due.

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