Dual eligible means you qualify for both Medicare and Medicaid at the same time. About 11.8 million people fall into this category, roughly 19% of all Medicare beneficiaries. You typically qualify because of your age (65 or older) or a disability that makes you eligible for Medicare, combined with a low income that also qualifies you for Medicaid. The two programs work together: Medicare acts as the primary payer for doctor visits, hospital stays, and other medical care, while Medicaid fills in the gaps by helping with premiums, copays, and services Medicare doesn’t cover, like long-term care.
Full Benefit vs. Partial Benefit
Not all dual eligible beneficiaries receive the same level of help. The distinction that matters most is whether you’re a “full benefit” or “partial benefit” dual eligible.
Full benefit dual eligibles qualify for complete Medicaid coverage on top of their Medicare. That means you get the full range of Medicaid services your state offers, including dental, vision, hearing, transportation, and long-term services and supports like home health aides or nursing facility care. Medicare still pays first for hospital and doctor services, but Medicaid picks up nearly everything else, including most of your out-of-pocket Medicare costs.
Partial benefit dual eligibles receive help only through Medicare Savings Programs. These programs cover some or all of your Medicare premiums and, in some cases, your deductibles and copays. But they don’t give you access to the broader Medicaid benefit package. The specific help you get depends on which program you qualify for.
Medicare Savings Programs
Four federal programs help low-income Medicare beneficiaries with their costs. Each has different income limits and covers different expenses. The figures below are the 2026 federal limits for individuals (limits are slightly higher in Alaska and Hawaii, and some states use more generous thresholds).
Qualified Medicare Beneficiary (QMB) is the most comprehensive. If your monthly income is $1,350 or less and your countable resources are under $9,950, QMB pays your Part A and Part B premiums plus all Medicare deductibles, coinsurance, and copays. Providers are legally prohibited from billing you for any Medicare-covered services. For married couples, the income limit is $1,824 with a $14,910 resource limit.
Specified Low-Income Medicare Beneficiary (SLMB) covers your Part B premium only. The individual income limit is $1,616 per month with the same $9,950 resource cap. For couples, those figures are $2,184 and $14,910.
Qualifying Individual (QI) also covers your Part B premium and has an individual income limit of $1,816 per month. One important difference: you must reapply every year, and states approve applicants on a first-come, first-served basis, with priority going to people who received QI the previous year. You can only get QI if you don’t qualify for any other Medicaid coverage.
Qualified Disabled and Working Individual (QDWI) is a narrow program for people with disabilities who returned to work and lost their premium-free Part A as a result. It covers Part A premiums only. The income limit is much higher at $5,405 per month for individuals, but the resource limit is lower at $4,000.
How the Two Programs Pay Together
When you’re dual eligible, Medicare always pays first for services it covers. If you go to the hospital, see a specialist, or get physical therapy, the bill goes to Medicare before Medicaid sees it. Medicaid then steps in as the “payer of last resort,” covering whatever Medicare doesn’t pay, up to the limits your state sets.
This coordination matters most for long-term care. Medicare covers short-term skilled nursing stays (typically up to 100 days after a hospital admission) but does not cover ongoing custodial care. Medicaid is the primary payer for long-term services and supports, including nursing home stays and home-based care that can last months or years. For dual eligibles who need this kind of help, the Medicaid side of their coverage is often the more valuable benefit.
Prescription Drug Help (Extra Help/LIS)
Dual eligible beneficiaries automatically qualify for Extra Help, also called the Low Income Subsidy, which dramatically reduces prescription drug costs under Medicare Part D. With Extra Help, you pay no plan premium and no deductible. Your copays are capped at $5.10 per generic drug and $12.65 per brand-name drug. Once your total drug costs for the year reach $2,100, you pay nothing for covered medications. If you have full Medicaid coverage and are in the QMB program, your copay drops to no more than $4.90 per drug.
The government automatically enrolls full benefit dual eligibles into a Part D prescription drug plan if they haven’t chosen one themselves. You can always switch to a different plan, but the auto-enrollment ensures you don’t go without drug coverage.
Dual Eligible Special Needs Plans
If you’re dual eligible, you have the option to join a Dual Eligible Special Needs Plan, commonly called a D-SNP. These are a type of Medicare Advantage plan designed specifically for people who have both Medicare and Medicaid. D-SNPs coordinate your benefits across both programs through a single plan, which can simplify billing and reduce the confusion of dealing with two separate systems.
Many D-SNPs offer additional benefits beyond standard Medicare, such as dental coverage, vision care, hearing aids, and transportation to medical appointments. Some D-SNPs offer zero-dollar cost sharing for Medicare-covered services, meaning you pay nothing out of pocket for covered care. The specific benefits vary by plan and state, so the available options depend on where you live.
Who Qualifies Under 65
Dual eligibility isn’t limited to seniors. You can qualify for Medicare before age 65 if you’ve received Social Security Disability Insurance for 24 months or if you have end-stage renal disease (ESRD) or ALS. If your income and resources also meet your state’s Medicaid thresholds, you become dual eligible regardless of your age. The same full benefit and partial benefit categories apply.
People with ESRD who qualify for Medicare through their kidney condition face specific coordination rules. If you already had Medicare through age or disability before developing ESRD, Medicare generally stays the primary payer. If ESRD is your sole basis for Medicare eligibility and you also have employer group health coverage, that group plan pays first during an initial coordination period before Medicare becomes primary.
How to Apply
There’s no single “dual eligible” application. You apply for Medicare and Medicaid separately. Medicare eligibility is handled through the Social Security Administration, while Medicaid (including Medicare Savings Programs) is managed by your state’s Medicaid agency. If you already have Medicare and think your income qualifies you for Medicaid assistance, contact your state Medicaid office or visit your local Department of Social Services.
Some states have more generous income and asset limits than the federal minimums listed above, so it’s worth applying even if you’re slightly above the federal thresholds. Research from MACPAC has found that when dual eligibles have more of their Medicare cost sharing covered, they’re more likely to use outpatient services and less reliant on safety-net providers, suggesting that these programs meaningfully improve access to care for the people who use them.