An energy tax credit is available for hybrid gas-electric or alternative fuel vehicles. This energy credit applies to individuals and businesses who buy or lease a new hybrid gas-electric car or truck that is placed in service between January 1, 2006 and December 31, 2010. The amount of the energy tax credit depends on the fuel economy and the weight of the vehicle. If the purchased hybrid vehicle

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uses less gasoline than the average vehicle that has similar weight and meets emission standards, then it qualifies for the energy tax credit. This energy credit is being phased out at the point when any manufacturer has sold 60,000 eligible vehicles. After that point, the amount of the energy tax credit is gradually reduced over a 15 month period.
A qualified plug-in electric vehicle purchased after December 31, 2009, is eligible for a $2500 to $7500 energy tax credit, based on the battery capacity of the vehicle. To be eligible, the plug-in electric vehicle must have four or more wheels, have a gross vehicle weight of less than 14,000 lb, and be powered by a battery of at least four kilowatt hours that can be recharged from an external source of electricity.