what does the us government spend the most money on
United States federal budget During FY2016, the federal government spent $3.85 trillion on a budget or cash basis, up $164 billion or 4% vs. FY2015 spending of $3.69 trillion. Major categories of FY 2016 spending included: Healthcare such as Medicare and Medicaid ($1,060B or 28% of spending), Social Security ($910B or 24%), non-defense discretionary spending used to run federal Departments and Agencies ($600B or 16%), Defense Department ($585B or 15%), and interest ($240B or 6%).[1]
Military budget of the United States For FY 2010, Department of Defense spending amounts to 4.7% of GDP.[39] Because the U.S. GDP has risen over time, the military budget can rise in absolute terms while shrinking as a percentage of the GDP. For example, the Department of Defense budget is slated to be $664 billion in 2010 (including the cost of operations in Iraq and Afghanistan previously funded through supplementary budget legislation[40][41]), higher than at any other point in American history, but still 1.1â€“1.4% lower as a percentage of GDP than the amount spent on military during the peak of Cold-War military spending in the late 1980s.[39] Admiral Mike Mullen, former Chairman of the Joint Chiefs of Staff, has called four percent an "absolute floor".[42] This calculation does not take into account some other military-related non-DOD spending, such as Veterans Affairs, Homeland Security, and interest paid on debt incurred in past wars, which has increased even as a percentage of the national GDP.