Not sure what you are trying or hoping to enter in regard to closing on a house. Buying a house in itself is not something to report on a tax return. What you enter about home ownership---for the tax year in which you ARE a homeowner-- is mortgage interest paid, property tax paid, private mortgage insurance paid, and loan origination fees ("points"). At the end of a tax year in which you have owned a home, you get a document called a 1098 from the lender that you use on your tax return if you are itemizing deductions.
But since you say you are buying /selling a house in 2021, you have nothing about that to enter on a 2020 tax return. Wait for next year.