What is the presidential public funding program?

The presidential public funding program has two distinct components: a primary matching fund and a general election grant. Both are administered by the Federal Election Commission under statutory authority in the Internal Revenue Code, and both are voluntary -- a candidate who does not certify their participation receives no public money and faces no spending limits. The program was created by the Revenue Act of 1971 (Pub. L. 92-178), which established the Presidential Election Campaign Fund (PECF) and the income tax checkoff as the funding mechanism. The Federal Election Campaign Act Amendments of 1974 (Pub. L. 93-443) fleshed out the program's eligibility rules, qualification thresholds, and spending-limit conditions. In Buckley v. Valeo, 424 U.S. 1 (1976), the Supreme Court upheld every aspect of the presidential public funding program as constitutional, ruling that conditioning public funds on acceptance of spending limits is a permissible exercise of congressional spending power under Article I and does not infringe First Amendment rights -- in contrast to the Court's simultaneous ruling striking down mandatory spending limits imposed on private campaigns.

The general election grant program (26 U.S.C. Sections 9001-9012) provides a lump-sum payment from the PECF to the nominee of each major party -- defined as a party that received 25 percent or more of the total popular vote in the most recent presidential election. A qualifying nominee who certifies their eligibility and acceptance receives the grant before the general election and must agree to (1) spend no more than the grant amount plus certain exempt legal and accounting compliance costs on the general election campaign; (2) accept no private contributions for general election expenses; and (3) repay any amounts that are unspent or misspent. Minor-party and independent candidates may also qualify for partial post-election reimbursement if they receive at least 5 percent of the popular vote. Gerald Ford and Jimmy Carter were the first recipients of general election public funds in 1976, the first presidential election cycle in which the program was fully operational. The program functioned with major-party participation through the 2004 cycle.

The primary matching fund program (26 U.S.C. Sections 9031-9042) operates differently: it provides dollar-for-dollar matching payments during the primary season for individual contributions of up to $250 from U.S. citizens or permanent resident aliens. To become eligible for primary matching, a candidate must demonstrate broad geographic support by raising at least $100,000 in matchable contributions -- contributions of $250 or less -- with at least $5,000 raised in each of 20 states. Once the FEC certifies a candidate's eligibility, the PECF matches each subsequent qualifying individual contribution dollar-for-dollar up to $250 per contributor. In exchange, participating candidates must agree to an overall primary spending limit (set by statute and adjusted for inflation each cycle) and state-by-state spending limits for each primary contest. Candidates who lose the nomination, drop out, or are otherwise ineligible for continued matching can be required to repay any excess public funds.

The $3 checkoff is the mechanism that sustains both programs. Line 5 on the standard Form 1040 invites taxpayers to designate $3 (or $6 on a joint return) to the Presidential Election Campaign Fund; checking the box does not increase the taxpayer's tax bill or reduce any refund -- it simply redirects that amount of existing tax liability to the PECF rather than to the general U.S. Treasury. The Revenue Act of 1971 originally set the designation at $1 (or $2 for joint filers); the Omnibus Budget Reconciliation Act of 1993 (Pub. L. 103-66) raised the checkoff to $3 per individual and $6 per joint return, where it has remained. The proportion of taxpayers who check the box has declined substantially over the decades as major-party candidates have stopped participating in the program and public awareness of the fund has faded; the PECF's balance has shrunk accordingly.

Major-party participation in the general election public funding program effectively ended in 2008. Barack Obama was the first major-party presidential nominee to reject general election public funding, choosing instead to raise private contributions for the general election; John McCain accepted general election public funds in 2008 and was bound by the associated spending limit. No major-party nominee has accepted general election public funding since McCain in 2008. For primary matching, George W. Bush in 2000 became the first major-party candidate to reject primary matching funds; he accepted general election funds in both 2000 and 2004. By the 2012 cycle, both major-party nominees declined primary matching funds as well. The reason for the program's abandonment by major candidates is structural: the spending limits tied to public funding are far lower than what leading presidential candidates can raise through private fundraising, and accepting public money means forfeiting the ability to raise additional private contributions. For the 2028 presidential election, no leading major-party candidate is expected to participate in either the primary matching fund or the general election grant program.