The market for photovoltaic (PV) power systems on commercial buildings has been extremely limited in Australia. Currently growth in on-grid PV systems has been directly attributed to residential applications through government rebates. Government support for the development of a commercial building PV market has not been provided, yet it has been shown internationally particularly in Germany and California (USA) that there is a large potential for installed capacity on commercial buildings if the right incentive is provided. The residential and commercial building PV markets are vastly different, not only are the electricity load profiles unlike which will affect the impact of a PV power system but also the owner/tenant relationship creates additional incentive issues that will be addressed in this paper. This paper will focus on two areas: firstly, the relationship between PV output and a commercial building’s electricity load profile and secondly, government incentives that can be used to develop PV uptake in the commercial building sector. A case study will be used to examine both these areas in detail and a broad analysis for Australia will be given. The case study will involve an economic analysis taking into account; a range of PV system types including building integrated photovoltaic’s (BIPV); net metering; various tariff structures and possible government incentives that will attract investors to the commercial building sector. Promoting this sector is essential to further aid industry development and drive down PV system costs as the PV industry strives towards a self-sustaining market.