How do I adjust the selling price of my home?

Look at the top of the screen and select Forms and type in "Sale of Home"  This will bring up how to adjust the base price of your home that you sold and how to file for the capital gains/loss on the sale of your home.  I just did this for my home and you may need your prior tax returns if you sold another home prior to this one for any carry-over gain/loss credit.

As long as you have not filed your tax return, you can revisit any section to make changes using the topic search feature in TurboTax Online. On the left-hand side go to Tax Tools>Tools >Topic Search or Topic List. Then type the section or form that you need to update in the search box and click Go.