Converting primary residence to rental - accounting for tax and insurance expense

[jasonsriche]

Hi,

I converted my primary residence to a rental.  The in-service date was 8/8/2024 (the date the for rent sign was in the yard) and it was rented starting 9/1/2024.  To calculate the amount of property taxes and mortgage interest to include between the Schedule A and Schedule E, do I use the number of days based on  in-service date or the rented date? 

Thank you.

[AmyC · Accepted solution]

When you started renting according to the IRS. There is a great example of conversion in IRS Pub 527. The link is mid conversion section so you may want to scroll up and down a bit for the full picture.