Per the IRS Qualified Business Income Deduction webpage:
Solely for the purposes of § 199A, a safe harbor is available to individuals and owners of passthrough entities who seek to claim the deduction under section 199A with respect to a rental real estate enterprise. Under the safe harbor a rental real estate enterprise will be treated as a trade or business for purposes of the QBI deduction if certain criteria are met. For more information, on the safe harbor see News Release IR-2019-158.
To complete the Qualified Business Income (QBI) section for rental property in TaxAct:
Note that any link in the information above is updated each year automatically and will take you to the most recent version of the webpage or document at the time it is accessed.