This collection is a subgroup (Predecessor Agency) of the Montana Department of Revenue records, RS 504. In 1972, the State Board of Equalization's responsibilities were transferred to DOR and the State Tax Appeal Board. Please see the primary finding aid for more Montana Department of Revenue records.

These records consist of general corresondence, including opinions of the Attorney General; outgoing correspondence of the Chairman of the Board; financial records, including assesments of railroads and records of apportionments of assesments of railroads; legal documents, including a transcript of a hearing on beer licenses; minutes; press releases; reports; and speeches.