Ala. Code § 10A-2A-15.13

A foreign corporation, insofar as it acts in a fiduciary capacity in this state pursuant to the provisions of this division, shall not be deemed to be transacting business in this state, but no foreign corporation acting in a fiduciary capacity in this state pursuant to the provisions of this division without registering to transact business in this state pursuant to this title or other applicable provisions of law shall establish or maintain in this state a place of business, branch office, or agency for the conduct of business as a fiduciary. Nothing contained in this division shall diminish the authority of out-of-state banks and trust companies to establish or acquire and maintain trust offices or representative trust offices, or both, under the provisions of Chapter 11A of Title 5.