First of all, you would report and enter your rental income and mortgage interest, property taxes, repairs, Landlord insurance and any other rental expenses on your federal income tax return, Form 1040, Schedule E, Supplemental Income and Loss (From rental real estate, royalties, partnerships, S corporations, estates, trusts, REMICs, etc.)
The income or loss amount would flow to your AL state income tax return.
To enter income and expenses from a rental property: