Option 1: Pay all or some of your Alabama income taxes online via: My Alabama Taxes.
Option 2: If you owe Alabama state income tax, you must file a return or extension by the tax deadline to avoid penalties. You can only file a federal extension online. A federal extension will only delay late filing penalties until October.
Note: If you don't pay your taxes in full or e-file your return by the October deadline, late filing penalties will resume.
Option 3: To avoid late filing penalties, complete Form 40V, include a check or money order, and mail it to the address on the form. Remember, even if you filed a federal extension, you must still file your Alabama state income tax return by the October deadline.