South Carolina QMB vs SLMB vs QI: Which Medicare Savings Program Covers What

Three Programs, Three Income Tiers, Very Different Benefits

South Carolina's three primary Medicare Savings Programs discussed here — QMB, SLMB, and QI — are administered through SCDHHS (Healthy Connections Medicaid). They share the same application — Form 3400 — and the same $9,950 individual / $14,910 couple asset limit. What separates them is the income cutoff and what Medicare costs the state covers.

Here is the 2026 comparison, with the $20 general income disregard already applied:

All three programs automatically qualify the beneficiary for full Part D Extra Help, which eliminates prescription deductibles and caps drug copays at $5.10 for generics and $12.65 for brand-name medications.

QMB: The Most Comprehensive Coverage

Qualified Medicare Beneficiary status is the program families should aim for if income allows. Beyond paying the $202.90 monthly Part B premium, QMB covers Medicare cost-sharing that the other two programs leave untouched:

• Part B annual deductible: $283 in 2026
• Part B coinsurance: typically 20% of the Medicare-approved amount
• Part A inpatient deductible: $1,736 per benefit period
• Part A hospital coinsurance: $434/day for days 61–90, $868/day for lifetime reserve days
• Skilled nursing coinsurance: $217/day for days 21–100

QMB also carries federal balance billing protections. Providers cannot bill a QMB beneficiary for any Medicare deductible, coinsurance, or copayment — period. Even if South Carolina Medicaid pays the provider $0 on the crossover claim (which happens frequently because Medicaid rates are lower than Medicare rates), the provider must write off the entire balance.

For someone facing a hospital stay, QMB can prevent a single admission from generating thousands of dollars in cost-sharing bills.

SLMB: Part B Premium Relief Only

Specified Low-Income Medicare Beneficiary covers the Part B premium and nothing else. No deductible help, no coinsurance, no balance billing protections.

The practical value: $202.90 per month ($2,434.80 per year) returned to a Social Security check. For a parent receiving $1,500/month in Social Security, that adds $202.90 back to the monthly payment.

SLMB is an open-ended entitlement — unlike QI, there is no annual funding cap. If your parent meets the income and asset criteria, they qualify regardless of how many other people in South Carolina also qualify.

SLMB also allows retroactive coverage: if approved, SCDHHS can backdate premium payments up to three months from the application date, as long as the beneficiary met the criteria during those months. QMB coverage is strictly prospective.

QI: Same Benefit as SLMB, With a Funding Cap

The Qualifying Individual program — historically called "SLMB II" or "SLMB-2" in South Carolina's internal coding — provides the identical benefit as SLMB: Part B premium payment only.

The difference is structural. QI runs on a capped annual federal block grant. Funding is allocated first-come, first-served, with priority given to beneficiaries who received QI during the prior year, so approval depends on available funding.

One critical rule: QI cannot be approved if your parent qualifies for any other form of full Medicaid.

How SCDHHS Assigns the Right Program

You do not choose your program on the application. SCDHHS evaluates income and assets against all three tiers and assigns the highest-benefit program the applicant qualifies for. If countable income falls at or below 100% FPL (plus the $20 disregard), the applicant gets QMB. If it falls between 100% and 120% FPL, SLMB. Between 120% and 135% FPL, QI.

This means the application is the same regardless — a single Form 3400 submission triggers evaluation for all three programs.

One Common Thread: Extra Help for Prescriptions

Regardless of which program tier your parent qualifies for, MSP approval triggers automatic "deemed" eligibility for full Part D Extra Help. CMS sends a purple letter confirming the benefit. No separate application is needed.

This is worth emphasizing because many families apply for Extra Help at SSA without realizing that an MSP application at SCDHHS accomplishes the same thing — and adds premium relief on top.

When Your Parent Falls Between Tiers

If income exceeds the QI ceiling ($1,816/month single, $2,455/month couple after the $20 disregard), no Medicare Savings Program applies. But your parent may still qualify for standalone Extra Help through a direct application at SSA, which uses higher income limits (150% FPL) and a separate, more generous asset threshold ($18,090 single / $36,100 couple in 2026).

The South Carolina Medicare Savings Programs & Extra Help Guide includes an eligibility self-calculator that walks through the income disregard arithmetic for all three tiers and helps determine whether QMB, SLMB, QI, or standalone Extra Help is the right fit.

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