The Antideficiency Act is a group of federal statutes, codified in Title 31 of the U.S. Code, that forbid government officers and employees from spending or committing to spend money Congress has not appropriated, or spending it in ways or amounts Congress did not authorize. It is the law that turns a lapse in appropriations into a government shutdown, and it carries both administrative discipline and, in rare cases, criminal penalties for those who break it.
What the Act Prohibits
The core prohibition sits in 31 U.S.C. § 1341. No federal officer or employee may make or authorize a payment that exceeds available funds, and no one may bind the government to a payment before an appropriation exists to cover it.1Office of the Law Revision Counsel. 31 USC 1341 – Limitations on Expending and Obligating Amounts
An “obligation” is any action that legally commits the government to pay. Signing a contract counts. So does placing an order for supplies, approving a grant, or hiring an employee. The violation happens the moment the government becomes legally bound, not when the check is written, which can be months or years later.
The rule applies at every level of the federal workforce, from cabinet officials to entry-level procurement staff. If the money runs out before the fiscal year ends, the agency has to stop incurring new obligations against that funding source. Not knowing the balance is no defense. An agency that fails to track its spending and accidentally overcommits has still violated the Act, even if no one meant to overspend.
A second prohibition, in 31 U.S.C. § 1342, bars agencies from accepting voluntary services or employing personal services beyond what Congress has authorized.2Office of the Law Revision Counsel. 31 US Code 1342 – Limitation on Voluntary Services The concern is that unpaid work can later produce back-pay claims Congress never budgeted for.3U.S. GAO. Department of the Treasury – Acceptance of Voluntary Services That is why, during a funding lapse, employees cannot keep working off the books even if they want to. Non-excepted staff must go home and cannot check email, take calls, or complete pending tasks until Congress restores funding.
Apportionment: Why Money in the Bank Isn’t Enough
Congress does not deliver an agency’s full annual budget on October 1. The Office of Management and Budget divides each appropriation into smaller portions through apportionment, typically by time period (quarterly, for example), by specific program or activity, or by a combination of both.4Congress.gov. Antideficiency Act
Under 31 U.S.C. § 1517, no federal employee may spend or obligate more than the amount OMB has apportioned to the agency for that period or program.5Office of the Law Revision Counsel. 31 USC 1517 – Prohibited Obligations and Expenditures An agency can have plenty of money left in its annual appropriation and still violate the Act by blowing through a single quarter’s allocation. Apportionment overruns are among the more common violations, and they usually trace back to weak internal tracking rather than deliberate overspending. The Act draws no line between the two.
Government Shutdowns Under the Act
What people call a “government shutdown” is really the Antideficiency Act doing its job. When Congress fails to enact appropriations by the start of a new fiscal year, agencies lose the legal authority to spend money. Because § 1341 bars obligations without a current appropriation, agencies have to cease all non-essential operations and furlough any employee whose work does not fall under an exception.
OMB issues guidance during each lapse identifying which activities are “excepted.” Employees who qualify keep working but cannot be paid until appropriations are enacted. OPM has clarified that furloughed employees may only perform work related to the orderly shutdown of their agency’s non-excepted activities.6U.S. Office of Personnel Management. Special Instructions for Agencies Affected by a Possible Lapse in Appropriations That typically means securing facilities, protecting classified materials, and completing the administrative steps needed to pause operations.
Congress has historically passed retroactive pay legislation after shutdowns end. There is no legal guarantee of that outcome while a lapse is ongoing.
The Emergency Exception
Section 1342 carves out a narrow exception for genuine emergencies. Agencies may authorize work during a funding lapse when it involves the safety of human life or the protection of property.2Office of the Law Revision Counsel. 31 US Code 1342 – Limitation on Voluntary Services Law enforcement officers, military personnel, air traffic controllers, and emergency medical staff generally fit this category because their absence would create immediate danger.
The bar is deliberately high. OMB guidance requires a reasonable connection between the work and the protection of life or property, and a reasonable likelihood that the threat is imminent enough to demand an immediate response.7The White House. Frequently Asked Questions During a Lapse in Appropriations The statute itself says “emergencies involving the safety of human life or the protection of property” does not cover ongoing government functions whose suspension would not immediately threaten anyone’s safety.2Office of the Law Revision Counsel. 31 US Code 1342 – Limitation on Voluntary Services
Activities that are merely important or convenient do not qualify. Processing tax refunds, issuing new passports, and staffing national parks are valuable, but pausing them does not put lives at immediate risk. Officials who authorize non-emergency work during a lapse face the same penalties as any other Antideficiency Act violator.
Reporting a Violation
When a violation is discovered, the head of the affected agency has to report it immediately to the President and Congress, with a full account of the facts and any corrective action taken. A copy goes to the Comptroller General the same day.8Office of the Law Revision Counsel. 31 US Code 1351 – Reports on Violations The same reporting obligation applies to apportionment overruns under § 1517.5Office of the Law Revision Counsel. 31 USC 1517 – Prohibited Obligations and Expenditures
Detection usually starts inside the agency, through routine financial audits or when budget analysts notice gaps between obligations and available balances. Inspectors General handle the investigation once a potential violation surfaces. The IG does not make the final determination, though. That call belongs to the agency head, who then triggers the formal reporting chain.9Department of Energy. Special Report DOE-OIG-18-29 The Government Accountability Office compiles the reports it receives and makes them publicly available.10U.S. GAO. Fiscal Year 2025 Antideficiency Act Reports Compilation
Penalties
Consequences fall into two tracks: administrative and criminal.
On the administrative side, 31 U.S.C. § 1349 subjects violators to disciplinary action up to suspension without pay or removal from federal service.11Office of the Law Revision Counsel. 31 US Code 1349 – Adverse Personnel Actions Agencies have broad discretion in choosing the discipline. Outcomes range from formal reprimands for minor or inadvertent breaches to termination in more serious cases.
Criminal penalties under 31 U.S.C. § 1350 apply only when an employee knowingly and willfully violates the Act. A conviction can bring a fine of up to $5,000, up to two years in prison, or both.12Office of the Law Revision Counsel. 31 USC 1350 – Criminal Penalty Prosecutions under this section are extraordinarily rare. Separating an honest bookkeeping error from a willful violation is a hard case for prosecutors to make, so nearly all enforcement flows through the administrative track. The criminal provision works mostly as a deterrent.