Plug In America keeps a comprehensive listing of incentives for Electric Vehicles on their website.

Listed by state, you can quickly and easily tell what tax credits, rebate, and what sales tax exemption an electric vehicle purchase in your state would qualify for. By looking at the list, you can also see that there can be other benefits to owning and driving an electric vehicle, such as carpool lane access. Some states also give credits for electric vehicle conversions, which means the do-it-yourselfer can also benefit from income tax credits and federal incentives.