Deductions & credits

Thank you. The follow-up question is more of can both of us split the property tax & interest by whatever percentage we deem, 50/50, 70/30, 60/40 etc  when filing and is that “acceptable” by the IRS vs it being a matter that the IRS will decide when a couple files Married Filing Separately. I know you said there are NOT  rules for the division of property but I wanted to make sure I stated the question properly and the response was accurate to my question.  So with that said, we can file the PITI anyway WE deem fit?