To enter the loss of sales in TurboTax online program, go to:
1. Sign into your account and select Take me to my return
2. At the right upper corner, in the search box type in investment sales then Enter
3. Select Jump to investment sales
4. On screen, Did you sell any investments in 2016 ?, select Yes to follow prompts
5. Under Choose the type of investment you sold, select Everything else
6. Enter your investment property information