Q. Since I had repair cost for 2019 that I never deducted, can I still deduct them for the 2020 tax year?
A. No, but not exactly. See below.
Q. Since I had improvement cost for 2019 that I never depreciated, can I still depreciate them for the 2020 tax year?
A. Yes. See below for how.
Your costs to get the property ready to rent, both repairs and improvements ,are added to your cost basis and you start depreciation from the date it was available for tent. There are three ways to do. Best: 1. add your total expenditures to your purchase price and depreciate one amount. 2. Add your repairs and improvements together and depreciate that as a 2nd asset. 3. Treat the repairs and improvements, separately as a 2nd and 3rd assets. Either way, you depreciate over 27.5 years.
If some of the money was spent on assets with a shorter life, e.g. carpet or appliances, you'll want to treat those costs as separate assets.
