Electing Real Property Trade or Business
Real property trades or businesses that elect out of the interest deduction limit must use the alternative depreciation system (ADS) to depreciate any nonresidential real property, residential rental property, or qualified improvement property. This provision applies starting in tax year 2018.
If you have an electing real property trade or business, you can enter assets described above to the business as Other assets, where you can pick the depreciation life, method, and convention.