| Program Type | Joint federal-state health coverage program (Centers for Medicare & Medicaid Services) |
| MAGI Applies To | Adults under 65, children, pregnant women (ACA, 42 CFR § 435.911) |
| ACA Expansion Income Limit | 138% of the Federal Poverty Level (Affordable Care Act, 2010) |
| Expansion States (as of 2025) | 41 states + Washington, D.C. (KFF State Health Facts, 2025) |
| Standard SSI Resource Limit | $2,000 individual / $3,000 couple (Federal baseline; some states are higher) |
| Long-Term Care Lookback Period | 60 months (5 years) (Deficit Reduction Act of 2005) |
| Federal FMAP Range | 50% to approximately 83% (CMS FMAP Table, FY2024) |
| ACA Expansion FMAP Rate | 90% federal match (ACA § 2001; permanently set at 90%) |
Why Medicaid Terminology Matters
Medicaid applications are full of acronyms, income calculations, and legal phrases that can stop a first-time applicant in their tracks. Terms like MAGI, FPL, and spend-down each carry precise, policy-specific meanings — and misunderstanding even one of them can lead to errors on your application or confusion about why your eligibility was denied.
This reference is designed to be your lookup guide. Whether you're applying for yourself, helping a family member, or just trying to understand an eligibility notice you received in the mail, these definitions will give you the vocabulary to navigate the process with confidence. For a broader overview of who qualifies and how the program works, see our full Medicaid eligibility overview.
One important note before we begin: Medicaid is a joint federal-state program, and many of the rules described here are implemented differently depending on where you live. A term like "medically needy" may exist in your state or it may not. Always check your state Medicaid agency's definitions alongside these general explanations.
| Program Type | Joint federal-state health coverage program (Centers for Medicare & Medicaid Services) |
| MAGI Applies To | Adults under 65, children, pregnant women (ACA, 42 CFR § 435.911) |
| ACA Expansion Income Limit | 138% of the Federal Poverty Level (Affordable Care Act, 2010) |
| Expansion States (as of 2025) | 41 states + Washington, D.C. (KFF State Health Facts, 2025) |
| Standard SSI Resource Limit | $2,000 individual / $3,000 couple (Federal baseline; some states are higher) |
| Long-Term Care Lookback Period | 60 months (5 years) (Deficit Reduction Act of 2005) |
| Federal FMAP Range | 50% to approximately 83% (CMS FMAP Table, FY2024) |
| ACA Expansion FMAP Rate | 90% federal match (ACA § 2001; permanently set at 90%) |
Income and Financial Eligibility Terms
Most Medicaid eligibility decisions start with income. But Medicaid doesn't use a single, universal definition of "income." Different eligibility groups are evaluated under different income-counting rules, and knowing which rule applies to you is essential.
MAGI (Modified Adjusted Gross Income)
MAGI is the income standard used for most non-elderly, non-disabled Medicaid applicants, including adults under 65, children, and pregnant women. It was introduced with the Affordable Care Act to align Medicaid income calculations with those used for premium tax credits on the Health Insurance Marketplace.
MAGI starts with your Adjusted Gross Income (AGI) from your federal tax return and then adds back certain items — such as untaxed Social Security benefits and tax-exempt interest — that are normally excluded. Importantly, MAGI excludes most assets: your savings, home equity, and car value do not count under MAGI rules.
FPL (Federal Poverty Level)
The Federal Poverty Level is a federally set income threshold, updated annually by the Department of Health and Human Services, used to determine eligibility for a range of government assistance programs including Medicaid. Income limits for Medicaid are almost always expressed as a percentage of FPL — for example, "138% FPL" is the expansion threshold under the ACA for adults in expansion states.
FPL thresholds vary by household size but not by geographic location (with the exception of Alaska and Hawaii, which have higher thresholds). You can find the current FPL amounts on the HHS website or through your state Medicaid office. See state-specific income limits by eligibility category for how these thresholds apply in practice.
Countable Income vs. Excluded Income
Not all money you receive counts toward your Medicaid income limit. Countable income includes wages, salaries, self-employment earnings, rental income, alimony, and some government benefits. Excluded income typically includes child support received, certain veteran's benefits, irregular gifts, and income earned by children in school. The specific exclusions vary by state and by eligibility category.
Income Disregards
An income disregard is a portion of your income that the state agrees not to count when determining eligibility. For example, many states apply a standard $20/month general income disregard for SSI-related Medicaid categories. Working adults may have a portion of their earned income disregarded to encourage employment. Disregards effectively lower your countable income, making it easier to qualify.
Spend-Down
If your income is above the Medicaid limit but you have high medical expenses, some states allow a spend-down process. You "spend down" your excess income by incurring (and often paying or owing) medical bills until your remaining income falls below the eligibility threshold for that month or period. Not all states offer this option — it applies primarily in "medically needy" states. For a deep dive into how this works with long-term care costs, see Medicaid spend-down and long-term care planning.
MAGI Does Not Apply to Everyone
The MAGI methodology covers most Medicaid applicants, but it does not apply to elderly individuals (65+), people with disabilities receiving SSI or SSDI, or those enrolled in Medicare. These groups are evaluated under traditional resource and income counting rules that do include assets. If you fall into one of these categories, make sure you're reading eligibility criteria for your specific group.
Retroactive Eligibility May Be Limited in Your State
While retroactive Medicaid eligibility (covering bills from the three months before application) is a standard federal provision, some states have obtained CMS approval to limit or eliminate it through 1115 waivers. Check with your state Medicaid agency to confirm whether retroactive coverage applies to your situation before assuming past bills will be covered.
Income Disregards Can Make a Real Difference
Many applicants don't realize that income disregards can reduce their countable income enough to qualify them for Medicaid — even if their gross income appears too high at first glance. When working with a caseworker or navigator, specifically ask whether any earned income disregards, childcare deductions, or other exclusions apply to your situation. These are easy to overlook and can significantly change your eligibility outcome.
Categorical Eligibility and Coverage Groups
Medicaid doesn't just have one income test — it has multiple coverage groups, each with their own rules. Understanding which group you belong to shapes everything from the income limit that applies to you, to which benefits you receive.
Categorically Needy
Categorically needy individuals are those who fall into a mandatory or optional eligibility group defined by federal law — such as low-income pregnant women, children under 19, parents with dependent children, or people receiving Supplemental Security Income (SSI). States are required to cover certain mandatory groups, and may choose to cover optional ones. Being categorically needy typically means you receive the full scope of Medicaid benefits available in your state.
Medically Needy
The medically needy pathway is an optional Medicaid program that some states offer. It allows people who meet categorical requirements (e.g., elderly, disabled, pregnant, or parent of a dependent child) but whose income is too high for regular Medicaid, to qualify by spending down their income on medical expenses. As of 2024, roughly 35 states and D.C. have a medically needy program.
Medicaid Expansion
Under the Affordable Care Act, states were given the option to expand Medicaid to cover most adults aged 19–64 with incomes up to 138% of the FPL, regardless of whether they have children or a disability. This is commonly called Medicaid expansion. As of 2025, 41 states and D.C. have adopted expansion. If you live in a non-expansion state, childless adults without a disability typically cannot qualify for Medicaid no matter their income level.
SSI-Related Medicaid
Many elderly and disabled adults qualify for Medicaid through their connection to Supplemental Security Income (SSI), the federal cash assistance program. In most states, receiving SSI automatically confers Medicaid eligibility. These applicants are evaluated under a different income and asset methodology than MAGI — assets like bank accounts and property do count for this group.
CHIP (Children's Health Insurance Program)
CHIP is a related but separate program that provides coverage to children in families with incomes too high for Medicaid but who still can't afford private insurance. Income limits for CHIP are typically set between 200%–300% of FPL depending on the state. In many states, children enroll through the same application system as Medicaid.
94.5M
Americans enrolled in Medicaid or CHIP
According to CMS monthly enrollment data as of late 2024.
41
States that have adopted Medicaid expansion
As reported by the Kaiser Family Foundation in January 2025, including Washington D.C.
~35
States with a Medically Needy program
Based on KFF state Medicaid policy surveys; the number varies as states amend their plans.
60 months
Asset transfer lookback period for LTC Medicaid
Established by the Deficit Reduction Act of 2005 and uniformly applied across all states.
$148,620
Maximum Community Spouse Resource Allowance
Federal upper limit for 2024 as set by CMS; individual states may choose a lower maximum.
Asset and Resource Terms
For elderly and disabled applicants — those evaluated under SSI-related rules rather than MAGI — assets (also called "resources") play a central role in eligibility. Here are the key terms you'll encounter.
Countable Resources
Countable resources are assets that the state considers when evaluating eligibility for SSI-related Medicaid. These typically include checking and savings accounts, stocks and bonds, cash value of life insurance policies over a certain threshold, and second properties. Most states set the countable resource limit at $2,000 for an individual and $3,000 for a couple, though some states have higher limits.
Exempt (Non-Countable) Resources
Not all assets count. Exempt resources — also called non-countable resources — include your primary home (if you or your spouse lives there), one vehicle, household furnishings, personal belongings, and burial plots or prepaid funeral arrangements up to certain amounts. The rules around home exemptions become more complex when applying for long-term care Medicaid, where estate recovery may later apply.
Asset Transfer Penalty
If you give away assets or sell them below fair market value within a certain period before applying for long-term care Medicaid, the state may impose an asset transfer penalty — a period during which you're ineligible for Medicaid-funded nursing home care. This lookback period is generally 60 months (5 years) for most long-term care services.
Community Spouse Resource Allowance (CSRA)
When one spouse needs nursing home care and applies for Medicaid, the Community Spouse Resource Allowance (CSRA) protects a portion of the couple's joint assets for the spouse who remains at home (the "community spouse"). In 2024, the minimum CSRA is $29,724 and the maximum is $148,620, though states set the exact figure within this federal range.
Estate Recovery
Estate recovery is a federal requirement that states must seek repayment from a deceased Medicaid recipient's estate for costs paid on their behalf — most commonly for long-term care services provided after age 55. This does not affect your eligibility while you are alive, but it can affect what assets you leave to heirs. States vary significantly in how aggressively they pursue estate recovery.
Program Administration and Federal Funding Terms
Understanding how Medicaid is funded and administered helps explain why the program looks different from state to state — and why your eligibility determination may take longer or have different rules than someone in another state.
FMAP (Federal Medical Assistance Percentage)
The Federal Medical Assistance Percentage (FMAP) is the share of Medicaid costs that the federal government pays for each state. It's calculated based on a state's per capita income relative to the national average — poorer states receive a higher federal match. FMAP rates range from 50% (for wealthier states) to as high as 83% for lower-income states. The federal government pays an enhanced match rate of 90% FMAP for expansion populations under the ACA.
State Plan Amendment (SPA)
Each state operates Medicaid under a State Plan — a formal agreement between the state and the federal Centers for Medicare & Medicaid Services (CMS) that describes how the program is run. When a state wants to change a covered benefit, eligibility rule, or payment rate, it submits a State Plan Amendment (SPA) to CMS for approval. This is why Medicaid coverage and rules differ across states.
Waiver Programs
States can apply for federal waivers that allow them to operate parts of their Medicaid program differently than the standard rules permit. The most common types are 1115 waivers (broad demonstration projects) and 1915(c) waivers (home and community-based services waivers that fund in-home care as an alternative to nursing homes). Waivers must be approved by CMS and are renewed periodically.
Retroactive Eligibility
Retroactive eligibility allows Medicaid to cover medical bills you incurred up to three months before the month you applied, as long as you would have been eligible in those prior months. This is an important protection for people who received emergency care before realizing they qualified for Medicaid. Note: some states have sought to limit retroactive eligibility through waivers.
Redetermination (Renewal)
Redetermination is the periodic process by which states review whether a Medicaid enrollee is still eligible. Historically done annually, the post-COVID unwinding period in 2023–2024 involved states resuming redeterminations after a prolonged pause. If you receive a redetermination notice, you must respond with any requested information by the deadline — failure to do so can result in coverage termination even if you are still eligible.
Once you understand these terms, you'll be better prepared to complete your application accurately. See our step-by-step Medicaid application walkthrough to put this knowledge into practice. And if you're curious about what happens after you submit, learn how states verify the information you report.
MAGI
Modified Adjusted Gross Income. The income-counting methodology used for most non-elderly, non-disabled Medicaid applicants. It is based on federal tax income concepts and excludes assets like savings or home value.
FPL
Federal Poverty Level. An annual income threshold set by the federal government and used to determine eligibility for Medicaid and other assistance programs. Medicaid limits are expressed as a percentage of FPL.
Spend-Down
A process in some states that allows individuals whose income exceeds the Medicaid limit to qualify by incurring medical expenses that reduce their net income to below the threshold for a given coverage period.
Categorical Eligibility
Qualification for Medicaid by belonging to a defined group such as children, pregnant women, elderly individuals, or people with disabilities. Each group has its own income and sometimes asset criteria.
Medically Needy
An optional Medicaid program in participating states that allows people who meet categorical requirements but have income above the standard limit to qualify by spending down excess income on medical bills.
FMAP
Federal Medical Assistance Percentage. The share of Medicaid costs the federal government reimburses each state, calculated based on state income levels. It ranges from 50% to over 80% depending on the state.
Countable Resources
Assets that are counted toward the resource limit in SSI-related Medicaid eligibility determinations, including bank accounts, stocks, and certain life insurance policies.
Exempt Resources
Assets excluded from Medicaid resource calculations, such as a primary home (if occupied by the applicant or spouse), one vehicle, and household goods.
Estate Recovery
A federal requirement that states recoup Medicaid costs from a deceased recipient's estate, typically for long-term care services provided after age 55. It does not affect coverage while alive.
1115 Waiver
A federal waiver under Section 1115 of the Social Security Act that allows states to test alternative approaches to Medicaid program design, such as adding work requirements or covering new populations.
Redetermination
The periodic review process states use to confirm that enrolled Medicaid recipients still meet eligibility criteria. Enrollees who do not respond to redetermination notices may lose coverage.
CSRA
Community Spouse Resource Allowance. The portion of a married couple's joint assets that may be retained by the at-home spouse when the other applies for long-term care Medicaid, protecting against complete impoverishment.
KFF Medicaid Eligibility & Enrollment Data
The Kaiser Family Foundation publishes comprehensive state-level data on Medicaid income limits, expansion status, and enrollment figures. An essential reference for verifying current thresholds.
Healthcare.gov Medicaid & CHIP Eligibility Screener
The federal marketplace includes a quick screener that estimates whether you or your children may qualify for Medicaid or CHIP based on your household size and income.
Benefits.gov Medicaid Benefit Finder
Enter your state and basic information to find links to your state's official Medicaid program, application portal, and eligibility information.
CMS Medicaid State Plan Documents
The Centers for Medicare & Medicaid Services publishes approved State Plan Amendments for all 50 states, allowing you to look up the official rules governing your state's Medicaid program.
MACPAC Medicaid and CHIP Glossary
The Medicaid and CHIP Payment and Access Commission maintains a policy-level glossary of Medicaid terms used in federal legislation and regulatory documents.
State Medicaid Application Walkthrough
Our step-by-step guide to the Medicaid application process helps you translate eligibility knowledge into action, from document gathering to submission and follow-up.
All claims in this article are backed by peer-reviewed research. We follow strict editorial guidelines to ensure accuracy and reliability. Sources available on request from our editorial team.
