Maryland’s Excise Tax Credit for Plug-In Electric Vehicles provides up to $3,000 in tax credits for purchase of a plug-in electric or hybrid vehicle (although limited funds may be exhausted in a given year). Maryland’s Electric Vehicle Supply Equipment Rebate will provides rebates for up to 40% of the cost of charging equipment, for a maximum award of $700 for individuals; $4,000 for businesses; and $5,000 for retail service stations.