This study employed stated-preference methods to elicit individuals’ program participation preference towards different financial incentive attributes. The results of this study show promise for the use of carefully designed incentive programs to raise participation in weight loss programs. Results show that a fungible payment form is important for the incentive to be effective in reach (i.e., cash and grocery gift-cards are preferred over gym passes and waivers of insurance co-payments). Furthermore, immediate payment is preferred over delayed payment.