Tax Question regarding went to file

[Damian Howard]

Tax day is upon me and I'm the idiot who who is waiting to the last minute to file the return, should of  had a CPA ..My question is that I did a rehab and repair in the tax year 2016 but wasn't completed until the year 2017 and the property rented out in the year 2017, should I have entered the cost of the rehab/repair cost  in the year 2016 tax return or should I have done the portion of the house that was done in 2016 against the 2016 tax basis?