Sale of an investment property

[Babak]

My client owned a property that never was used as rental nor as second home. They bought it 10 years ago, made so much improvements and sold it in 2020. They never reported it in their previous tax years and never depreciated it. Now that I'm reporting the sale, I don't know how to include the improvement in the sale. Should I add it to the cost basis? or is there another way I need to report it?

[sjrcpa]

Add it to the original cost.

[itonewbie]

You meant your client bought the property, made improvements over the years but that property was never used by anyone and had been left vacant for 10 years?

[Babak]

That's correct. Basically improvements happened during those 10 years without anybody living in it.