There is a substantial body of literature on information technology (IT) outsourcing. However, little is known about employing IT outsourcing to generate innovation. In this paper, we articulate the ex ante as well as ex post contracting challenges that could preclude firms from realizing such business value through outsourcing. We develop and test a model linking innovation in IT outsourcing (process innovation and service innovation) to two complementary solutions to the contractual problems: credible commitments and contingent control rights. Alternative empirical estimation approaches support the basic thesis that contractual solutions are complementary in their association with enhanced innovation performance. Our study suggests that portfolios of complementary contractual provisions need to simultaneously address ex ante and ex post hazards through contract design in the outsourcing of innovative tasks. Theoretical and practical implications are explicated.