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CBO estimates that federal policies to promote the manufacture and purchase of electric vehicles, some of which also support other types of fuel-efficient vehicles, will have a total budgetary cost of about $7.5 billion through 2019. Tax credits for buying electric vehicles—which account for about one-fourth of that cost—are likely to have the greatest impact on vehicle sales. The electric vehicles that are the focus of this study fall into two broad classes:

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CBO estimates that federal policies to promote the manufacture and purchase of electric vehicles (including some policies that support other types of fuel-efficient vehicles) will have a total budgetary cost of about $7.5 billion through 2019. Tax credits for buying electric vehicles—which account for about one-fourth of that budgetary cost—are likely to have the greatest impact on vehicle sales.

Today CBO released a study on the effects of federal tax credits for the purchase of electric vehicles. CBO finds that: