Presidential election campaign fund checkoff

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The voluntary Presidential election campaign fund checkoff appears on US income tax return forms as Do you want $3 of your federal tax to go to the Presidential Election Campaign Fund?

Originally $1 and implemented in the 1970's as an attempt as the public funding of elections, this money provides for the financing of Presidential general election campaigns and national party conventions.

As it does not change the amount of your tax or refund, checking the box lowers the federal government's income by $3 of your payment.