Ala. Code § 6-6-525

The trustee must, at least once in three years, make partial settlement of his accounts and may be required to do so at any time; and, on the termination of the trust, he or, if he is dead, his personal representative must make final settlement thereof, such settlement to be governed by the provisions of this Code regulating settlements of guardian’s accounts in the court of probate, so far as such provisions may be applicable.