The authors present a multidimensional assessment of the outcomes and benefits of an income tax preparation assistance (ITPA) service learning program. They measure the perceived proximate benefits at the delivery of the service program, the actual learning outcome benefits prior to graduation, and the perceived long-term benefits from a postgraduation alumni survey. Overall, service receivers, service providers, and alumni value their experience and participation in the ITPA program. Assessment of learning outcomes indicates significant increases in participants' perceived knowledge application, problem-solving, and communication skills. Moreover, the assessed actual learning outcome (i.e., knowledge of individual taxation topics) is notably higher among students participating in the ITPA program than it is for nonparticipating students.