Do I enter the total utility expenses for the whole year even if I converted my rental space for personal use during the year? I am using TurboTax Premier.

I converted my rental space to personal use on July 2nd 2017 (which is approx. 6 mths. of renting for 2017). Will TurboTax Premier prorate for me and do the computation or do I need to divide the expenses in half myself? Additionally, will it figure out the property taxes and home owners insurance or do I need to divide that also?

Also, would a plumbing repair (septic tank repair) done in August be deductible? I am assuming it would not since it was done AFTER I converted the space to personal use. Just asking because the tenants could have contributed to the problem.

I used an exterminator only for the period while I was renting so I am guessing I can deduct all of those expenses - am I correct?