Based on the proactivity literature I suggest a new construct: proactive helping behavior. Proactive helping behavior is initiated by the helper, anticipates future needs or problems of the recipient, is intended to have a discernible impact on the recipient in the longer term, and is carried out in a persistent fashion. I developed a new measure for proactive helping behavior and tested a preliminary model of its antecedents and consequences. Results from an empirical study involving 388 employees and their supervisors in a large luxury hotel in Singapore are presented and their implications for theory and practice are discussed.