This series contained carbon copies of reports of annual audit findings on the financial records of various city departments and major revenue accounts, compiled for the years 1926 through 1932. A volume for 1944 contained the report to Mayor Theodore McKeldin concerning the special examination of the accounts of the employees' retirement system undertaken by the Bureau of Audits.

Departments covered by the reports include the free public bath commission, Enoch Pratt Free Library, police, sheriff, board of park commissioners, harbor master, board of school commissioners, fireman's pension fund, and the commissioners of finance and city register. Among the major revenue accounts represented are rentals, street opening and footway paving assessments, markets, and various types of taxes including real estate, flat water, tangible and tangible personal, intangible, special paving, and Maryland corporation.