The turn of the century has seen a rapidly graying population concurrently with increasingly ubiquitous information technology (IT). The elderly population being less familiar with IT implies that issues pertaining to their acceptance of information systems (IS) deserve special attention. However, the IS and gerontology literatures seldom explore IS acceptance among the aged. Attempting to address this gap, a research model is developed by integrating relevant antecedents from previous literature and empirically tested in the context of an e-Government service tailored for senior citizens. Our findings reveal that consistent with previous technology acceptance studies, senior citizens' use intention is driven by their perceived usefulness and perceived ease of use of the service. Additionally, their Internet safety perception impacts the acceptance of this online financial service. Furthermore, resource savings and self-actualization determine senior citizens' usefulness perception, whereas computer anxiety and computing support are antecedents of perceived ease of use. Of these antecedents, self actualization and computer anxiety appear particularly relevant for the elderly as compared to younger working professionals in most previous literature for whom these antecedents have not been important. The study contributes by providing an integrative model of IS acceptance among the aged, which may facilitate theory development and practice.