RSM McGladrey saw tax services revenue fall by 6.8 percent for the third quarter ended January 31 as sluggish client demand led to lower rates and fewer chargeable hours. The tax services revenue is part of Block's Business Services segment, which is comprised by RSM McGladrey and RSM EquiCo. The latter, a separate reporting unit, assists clients with capital markets transactions. Tax services revenue dropped to just under $73 million in the quarter end ended, down from $78.3 million a year earlier.