Code of Alabama
Division 2 - Alabama Uniform Federal Lien Registration Act.
Section 35-11-44 - Place of Filing.

(a) Notices of liens, certificates, and other notices affecting federal tax liens or other federal liens must be filed in accordance with this division.
(b) Notices of federal liens upon real property for obligations payable to the United States and certificates and notices affecting the liens shall be filed in the office of the judge of probate of the county in which the real property subject to the liens is situated.
(c) Notices of federal liens upon personal property, whether tangible or intangible, for obligations payable to the United States and certificates and notices affecting the liens shall be filed as follows:
(1) If the person against whose interest the lien applies is a corporation or a partnership whose principal executive office is in this state, as those entities are defined in the internal revenue laws of the United States, in the office of the Secretary of State;
(2) If the person against whose interest the lien applies is a trust that is not covered by subdivision (1), in the office of the Secretary of State;
(3) If the person against whose interest the lien applies is the estate of a decedent, in the office of the judge of probate of the county in the courts of which the estate is being administered;
(4) In all other cases, in the office of the judge of probate of the county where the person against whose interest the lien applies resides at the time of filing of the notice of lien.