Prohibited Contributions to PACs: What the Law Forbids

Federal law draws firm lines around which money, from whom, and in what form may legally flow into a political action committee. Understanding these prohibitions matters because violations can trigger civil penalties, criminal referrals, and mandatory disgorgement of funds — consequences that fall on both the contributor and the PAC itself. This page covers the statutory categories of prohibited contributions, the mechanics of how prohibitions operate, common real-world scenarios that trigger violations, and the boundary cases that determine legality.

Definition and scope

A "prohibited contribution" under federal law is any transfer of money, goods, services, or anything of value made to a political committee in a manner that violates the Federal Election Campaign Act (FECA), codified at 52 U.S.C. § 30101 et seq.. The Federal Election Commission (FEC) enforces these rules and has authority to impose civil penalties up to the greater of $10,000 or 200 percent of the amount at issue for knowing and willful violations (52 U.S.C. § 30109(a)(6)(B)).

The prohibition framework operates in two dimensions: source (who may not give) and form (what types of transfers are barred). Both dimensions apply simultaneously, meaning a transfer can be prohibited on source grounds even if its dollar amount would otherwise be within legal limits, and vice versa.

For context on how PACs fit into the broader campaign finance landscape, the PAC overview at the site index provides a structural map of the entities and rules discussed here.

How it works

The FECA prohibitions are not self-executing. The FEC's Office of General Counsel investigates complaints and conducts audits; the Commission then votes on whether probable cause exists before moving to conciliation or referral to the Department of Justice. The enforcement chain involves:

1. Filing or complaint — A complaint is filed with the FEC, or the agency opens a Matter Under Review (MUR) on its own initiative.
2. Reason-to-believe finding — The Commission votes on whether reason to believe a violation occurred exists.
3. Investigation — Staff reviews bank records, FEC filings, and correspondence.
4. Probable cause — A second Commission vote determines whether probable cause supports a violation finding.
5. Conciliation — The FEC negotiates a civil penalty and repayment agreement with the respondent.
6. DOJ referral — Knowing and willful violations that exceed civil penalty thresholds are referred to the Department of Justice for potential criminal prosecution under 52 U.S.C. § 30109(d).

PAC treasurers bear primary responsibility for rejecting prohibited funds. Under 52 U.S.C. § 30102(b), a treasurer who knowingly accepts a prohibited contribution shares liability with the contributor. For a detailed breakdown of treasurer obligations, see PAC treasurer responsibilities.

Common scenarios

Corporate treasury funds. Corporations are prohibited from contributing directly to federal candidates or most traditional PACs from their general treasury accounts under 52 U.S.C. § 30118. A corporation may establish a separate segregated fund — commonly called a corporate PAC — funded exclusively by voluntary contributions from eligible stockholders and executive personnel. Commingling general treasury dollars with the segregated fund is a per se violation.

Foreign national contributions. 52 U.S.C. § 30121 bars contributions from foreign nationals, defined as individuals who are neither U.S. citizens nor lawful permanent residents. This prohibition extends to foreign-controlled domestic corporations where a foreign national exercises decision-making authority over U.S. political activities. The FEC's Advisory Opinion 2006-04 addressed the analysis applied to foreign-owned subsidiaries.

Labor union general treasury funds. Like corporations, labor unions may not contribute from their general treasury to federal PACs or candidates. Under 52 U.S.C. § 30118, unions must use a separate segregated fund — a labor union PAC — funded by voluntary member contributions. Treasury funds may, however, pay for certain administrative costs of the connected PAC.

Contributions in the name of another (conduit contributions). Using a third party to disguise the true source of a contribution violates 52 U.S.C. § 30122. A business reimbursing employees for PAC contributions, then bundling those checks, constitutes a conduit scheme regardless of whether individual amounts stay within per-donor limits.

Cash contributions exceeding $100. Under 52 U.S.C. § 30102(c), no political committee may accept cash contributions in excess of $100 from any single source.

Federal contractor contributions. 52 U.S.C. § 30119 prohibits federal contractors from making contributions to federal political committees during the period of negotiation or performance of the contract. The prohibition applies to the contracting entity itself, not to the individual principals acting in a personal capacity with personal funds within standard contribution limits.

Decision boundaries

Several factors determine whether a borderline transfer crosses into prohibited territory:

Connected vs. nonconnected PAC status. The organizational form matters significantly. A connected PAC operated by a corporation or union may accept administrative cost subsidies from its sponsoring organization — rent, staff time, legal fees — without those payments counting as prohibited contributions. A nonconnected PAC has no such sponsoring relationship and therefore has no analogous carve-out.

Volunteer labor vs. in-kind contribution. Uncompensated volunteer activity, including computer services provided on personal time, is explicitly excluded from the definition of "contribution" under 52 U.S.C. § 30101(8)(B). Once a person is compensated by a corporation for performing that same activity, the compensation becomes an in-kind corporate contribution — prohibited under the general treasury rule.

Earmarked contributions. A contribution directed through a PAC to a specific candidate, where the PAC acts as a mere conduit, is attributed to the original donor for purposes of the donor's contribution limits. If the original donor is a prohibited source — a corporation, for instance — the earmark does not cure the prohibition.

Super PAC carve-out. Independent expenditure-only committees (Super PACs) may accept corporate and union treasury funds for independent expenditures following Citizens United v. FEC, 558 U.S. 310 (2010), and SpeechNow.org v. FEC, 599 F.3d 686 (D.C. Cir. 2010). However, even Super PACs cannot accept foreign national contributions, contributions in the name of another, or cash above $100 — those prohibitions apply universally regardless of committee type. See PAC vs. Super PAC for a structured comparison of the two committee types.

For the complementary rules governing how much permissible donors may give, see PAC contribution limits.