A government shutdown arises when the legislature fails to approve essential funding or authorization bills for the executive branch. This leads to a temporary halt of many government operations. Shutdowns often stem from disagreements over budget allocations and policy priorities between the executive and legislative branches. The effects can range from closure of national parks and delays in government services to furloughs of federal employees. Government shutdowns have become relatively common in recent decades in the United States, frequently tied to partisan gridlock.
In 1976, the US government's current budget and appropriations process was enacted.
In 1980, government shutdowns started occurring periodically in the United States because of failures to pass appropriation bills before the expiration of previous ones.
Prior to 1980, funding gaps did not lead to government shutdowns, until Attorney General Benjamin Civiletti issued two legal opinions requiring the government to shut down when a funding gap occurs.
Since a 1980 interpretation of the 1884 Antideficiency Act, a "lapse of appropriation" requires that the US federal government curtail agency activities and services, and close down non-essential operations.
Since 1990, all funding gaps lasting longer than a few hours have led to a government shutdown.
In 1995, there was a 21-day government shutdown during the Bill Clinton administration due to opposition to major spending cuts.
In 1996, there was a 21-day government shutdown during the Bill Clinton administration due to opposition to major spending cuts.
In 2011, the passage of the Fixed-Term Parliaments Act in the United Kingdom made government shutdowns possible, which were previously impossible due to parliamentary convention.
During the 2013 shutdown, Standard & Poor's stated on October 16 that the shutdown had "to date taken $24 billion out of the economy", and "shaved at least 0.6 percent off annualized fourth-quarter 2013 GDP growth".
In 2013, there was a 16-day government shutdown during the Barack Obama administration caused by a dispute over implementation of the Patient Protection and Affordable Care Act.
In January 2017, the power-sharing agreement collapsed in the Assembly of Northern Ireland, hindering the parliament's ability to pass bills, including critical spending bills.
In December 2018, the United States experienced a government shutdown due to a failure to pass appropriations bills.
In 2018, there was a 35-day government shutdown during the Donald Trump administration, caused by a dispute over the funding amount for an expansion of the U.S.–Mexico border barrier.
In 2019, there was a 35-day government shutdown during the Donald Trump administration, caused by a dispute over the funding amount for an expansion of the U.S.–Mexico border barrier.
In 2022, the Fixed-term Parliaments Act was repealed by the Dissolution and Calling of Parliament Act, making a government shutdown virtually impossible in the UK.
On September 30, 2023, a government shutdown was averted hours before it was to occur after a 45 day funding bill passed in both the House of Representatives and the Senate.
As of March 6, 2025, there have been 23 funding gaps in the federal budget since 1976, with 10 leading to employee furloughs.