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Medicaid Enrollment & Spending Growth: FY 2017 & 2018

Appendix: Background on Medicaid Financing

Medicaid Financing Structure. The Medicaid program is jointly funded by states and the federal government. The federal government guarantees match funds to states for qualifying Medicaid expenditures. The federal match rate (Federal Medical Assistance Percentage, or FMAP) is calculated annually for each state using a formula set in the Social Security Act which is based on a state’s average personal income relative to the national average; poorer states have higher FMAPs. The FMAP in FFY 2017 varies across states from a floor of 50 percent to a high of 75.7 percent.1 Personal income data are lagged, so data used for FFY 2018 FMAPs are from the three years of 2013 to 2015. Decreases in the FMAP could increase pressure on state budgets.

As a result of the federal matching structure, Medicaid has a unique role in state budgets as both an expenditure item and a source of federal revenue for states. In FY 2015, Medicaid accounted for 28.2 percent of total state spending for all items in the state budget, but 15.6 percent of state funds (general fund plus other state funds), a far second to spending on K-12 education (24.8 percent of state funds). Medicaid is the largest single source of federal funds for states, accounting for half (56.8 percent) of all federal funds for states in FY 2015 (Figure 6).2

Figure 6: Medicaid is a budget item and a revenue item in state budgets.

Medicaid and the Economy. Medicaid is a countercyclical program. During economic downturns more people qualify and enroll in Medicaid, which increases program spending at the same time that state tax revenues level or fall. To help mitigate these budget pressures, Congress has twice passed temporary increases to the FMAP to help support states during economic downturns, most recently in 2009 as part of the American Recovery and Reinvestment Act (ARRA). The ARRA-enhanced match rates were the primary vehicle for federal fiscal relief to states during the “Great Recession,” providing states over $100 billion in additional federal funds over 11 quarters, ending in June 2011.3

Medicaid and the ACA. Effective January 1, 2014, the ACA expanded Medicaid eligibility to millions of non-elderly adults with income at or below 138 percent of the federal poverty level (FPL) – about $16,643 for an individual in 2017. The law also provided for 100 percent federal funding of the expansion through 2016, declining gradually to 90 percent in 2020 and future years. The Supreme Court ruling on the ACA in June 2012 effectively made the Medicaid expansion optional for states. As of September 2016, 32 states (including the District of Columbia) have implemented the ACA Medicaid expansion. The ACA also required all states to implement new streamlined and coordinated application, enrollment, and renewal processes, including transitioning to a new income standard (Modified Adjusted Gross Income or MAGI) to determine Medicaid financial eligibility for non-elderly, non-disabled populations.

Methodology

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Filling the need for trusted information on national health issues, the Kaiser Family Foundation is a nonprofit organization based in Menlo Park, California.