Are you preparing a return for the estate or your own personal return (1040)?

For the estate.

For the estate.

There is no entry screen for the 1099-S, but you can enter the sale of your mother's house in the 1041 return using these steps:

1. Click Federal Taxes > Continue.
2. On the Your Income screen, in the Investment Income section, click the Start/Update box next to Home Sales.
3. On the Home Sale screen, click Yes.
4. Continue through the screens, enter the information on the sale.

To enter the sale of land, please follow these steps:

1. Click Federal Taxes > Continue.
2. On the Your Income screen, in the Investment Income section, click the Start/Update box next to Stocks, Mutual Funds, Bonds, Other.
3. On the screen, Did You Sell  Any Stocks, Bonds, or Mutual Funds in 2018, click Yes.
4. On the next screen, Investments Acquired from a Decedent, mark the Yes radio button and click Continue.
5. On the Select Your Financial Institution screen, select No Financial Institution from the list and click Continue.
6. On the next screen, enter the details of the sale.  [Ignore the last two columns.]
7. On the screen, Investments Acquired from a Decedent click the Acquired from Decedent box next to the land sale and click Done.

It's important that you indicate that the land was "acquired from a decedent" because the sale will then be taxed as long-term instead of short-term resulting in a lower tax rate.

Not sure if it makes a difference but it was actually a piece of land that had no home on it. Would I still enter the same thing or is there an option for just a land sale. Thanks

I have added instructions for entering a land sale to my original answer.  The method is similar, but with a few "tweaks."

Thank you. Just a quick follow up. Is there a minimum amount for the Gross Proceeds in order to have to file? Or do you have to file no matter what the amount. The land sold for $20,000. That is all we have to report for the estate last year.