OK...So you need to amend the tax return to add the sale and report the proceeds as entered on the Form 1099-S.
Use this procedure to report the sale when you are amending the tax return -
To enter an investment sale other than from a brokerage account (1099-B), follow the steps below.
Click on Federal Taxes (Personal using Home and Business)
Click on Wages and Income (Personal Income using Home and Business)
Click on I'll choose what I work on (if shown)
Under Investment Income
On Stocks, Cryptocurrency, Mutual Funds, Bonds, Other, click the start or update button
Using the online editions -
On the next screen click on Yes
On the next screen, click on Enter a different way
On the next screen, click on Other and continue
