I bought a house in 2010 and lived in it as a primary residence for the first two years. But for the last 6 years, it has been a 100% rental property. (I already know that I don't qualify for "2 in last 5 years" exclusion rule). My question is this:
How do I add the remodeling costs I did to the house when I initially bought it to the cost basis, so that I can reduce the taxable gain on selling the house in 2018?
More details: When initially I bought the house I did remodeling (new bathroom floor and tiles, new fireplace tiles, etc). I don't think I ever entered this info in my prior year's returns. Does that mean I lost the opportunity and I can no longer add this to my cost basis in 2018 taxes? I was hoping I could because that would help decrease the profit.
