I meant to type "the purchase/acquisition date doesn't come into play"
I wouldn't expect to begin depreciating the flooring until the available date.
Of course. So if you tell the program you "acquired" the asset on 1/1/2019, and it was "available for rent" on 7/1/2019, depreciation starts on 7/1/2019. It really is that simple.
Now if this was a case of you purchased the property on 1/1/2019, installed the new flooring on 2/1/2019 (when the project was completed) and it was available for rent on 7/1/2019, I wouldn't bother entering the floor as a separate asset since depreciation on the property and the floor starts from zero at the same time. I'd just add the cost of the new floor to the cost basis of the structure and call it good.
For example,
Purchased property on 1/1/2019 for $200,000
Allocated $50K to the land (which is not depreciated of course)
The program "does the math" and figures that $150K goes to the structure for depreciation.
On 2/1/2019 installation of new flooring was completed at a cost of $10K. This makes my cost basis in the property $210,000.
When entering the property into TurboTax I'll enter $210,000 in the COST bos and $50,000 in the COST OF LAND box. The program will "do the math" and depreciation on $160,000 will start on my in service date of 7/1/2010. For depreciation, the fact that I 'acquired" (paid for) the new floor a month after I purchased the property has no effect what-so-ever on deprecation, since the property was not placed into service until after the property improvement was completed.
