If the loss on your 2019 rental generated an NOL, you may have a portion to carry to 2020. You would have had to have a loss so big that it wiped out the balance of your income and still showed a loss on Line 9 of Schedule 1. See PUB 536 for instructions how to calculate the NOL for any possible 2020 inclusion.
What is a Net Operating Loss?
A net operating loss (NOL) results from the situation in which a business or individual has more allowable tax deductions than it has taxable income. In this case, the business has negative income, or a net operating loss. That's the bad news. But the good news is that you may be able to take that net operating loss and move it to a tax year in which you had a profit (actually, net operating income) in future years.
To have an NOL, your loss must generally be caused by deductions due to expenses from:
