Medical emergencies do not wait for paperwork. South Carolina residents who go to the emergency room, are hospitalized, or receive other covered care before they have Medicaid may still get those bills paid. South Carolina's Healthy Connections program follows the federal 3-month retroactive look-back rule in 2026, which allows the state to cover eligible medical bills from the 3 calendar months before your application month, as long as you would have qualified during those months. South Carolina has not obtained a federal waiver to eliminate or shorten this window, which puts it in the majority of states that still provide the full protection in 2026.
This guide covers how the Healthy Connections retroactive period works in 2026, who qualifies, the specific income limits by household size, how to request retroactive coverage using SCDHHS Form FM3400-C, what documents you need, why South Carolina's non-expansion status matters for which populations are protected, and what changes starting January 1, 2027 under federal law. For general Healthy Connections eligibility, see our full South Carolina Medicaid guide at coveredusa.org.
Direct answer: Yes, Healthy Connections covers bills up to 3 months back in 2026
Yes. South Carolina's Healthy Connections Medicaid program applies the full federal 3-month retroactive look-back in 2026. If you are approved, the state evaluates whether you would have qualified during each of the 3 calendar months before your application month and pays eligible medical bills for any month in which you did qualify. Covered services match active Healthy Connections enrollment: inpatient care, outpatient visits, emergency services, physician care, labs, and prescriptions.
How the Healthy Connections 3-month look-back works
Healthy Connections counts retroactive months by calendar month, not by 90 days from the application date. If you apply in August 2026, your retroactive window covers May, June, and July 2026. Medicaid evaluates your financial and categorical eligibility separately for each of those three months. If your income was over the limit in May but within range in June and July, coverage is authorized only for June and July. The law for this rule is Section 1902(a)(34) of the Social Security Act, and South Carolina's eligibility manual confirms that the state applies this requirement as written for eligible populations.
Retroactive coverage in South Carolina is not automatic. You must complete SCDHHS Form FM3400-C (Request for Retroactive Medicaid Coverage) and submit it with your regular application. On Form FM3400-C, you list each person in your household who had medical services during the retroactive period, along with the dates and types of services. SCDHHS then determines retroactive eligibility for each listed month. Applicants who do not file FM3400-C are typically not evaluated for the retroactive period, even if they would have qualified.
Who qualifies for Healthy Connections retroactive coverage in 2026
South Carolina is one of the 10 non-expansion states in 2026, meaning the state has not accepted the ACA Medicaid expansion that covers adults at or below 138% of the Federal Poverty Level (FPL) in 40 states and the District of Columbia. The populations who can receive Healthy Connections retroactive coverage are the same populations eligible for Healthy Connections in the first place. South Carolina covers four primary groups: children under 19 at or below 208% FPL, pregnant women at or below 194% FPL (with 12 months of postpartum coverage), parents and caretaker relatives of minor children at or below 62% FPL, and people who are aged, blind, or disabled at the SSI income level. Childless adults without a qualifying disability or pregnancy have no Healthy Connections income category and therefore cannot claim retroactive coverage regardless of income.
South Carolina's non-expansion status creates the ACA gap for adults between 0% and 100% FPL who do not fit one of the above categories. This ACA gap means those adults are too poor to qualify for ACA marketplace subsidies (which start at 100% FPL) and have no Healthy Connections category. Retroactive coverage cannot help a person who was never eligible for Healthy Connections during the retroactive period. Emergency Medicaid is available to any South Carolina resident during an acute emergency regardless of immigration or eligibility status, though it does not extend to routine care.
Healthy Connections income limits by household size and eligibility category (2026)
South Carolina sets different income limits for each Healthy Connections eligibility category, based on the 2026 Federal Poverty Guidelines. All limits apply to Modified Adjusted Gross Income (MAGI), which means most income counts (wages, self-employment, Social Security) but certain items are excluded (child support received, one-time gifts, tax-exempt income). These thresholds apply not only to current eligibility but to retroactive months as well: your income in each retroactive month is evaluated against the same limits.
Children under 19 qualify for Healthy Connections at up to 208% of the 2026 FPL, the highest income limit of any Healthy Connections category. Pregnant women qualify at up to 194% FPL, and coverage continues for 12 months postpartum. Parents and caretaker relatives of dependent minor children have a much lower limit at 62% FPL. People who are aged (65 and older), blind, or disabled use an income methodology based on SSI rules, which differs from MAGI. The household-size income table above shows the annual dollar equivalents for the children's 208% FPL threshold, with notes showing the pregnant women's 194% and parents' 62% equivalents for each household size.
Is South Carolina a Medicaid expansion state?
South Carolina is a non-expansion state in 2026. South Carolina is one of 10 states that have not adopted the ACA Medicaid expansion option, which would extend Healthy Connections to adults at or below 138% FPL regardless of family structure. The other 9 non-expansion states in 2026 are Alabama, Florida, Georgia, Kansas, Mississippi, Tennessee, Texas, Wisconsin, and Wyoming. The practical effect for retroactive Medicaid is significant: a 35-year-old childless adult in South Carolina who is hospitalized and later applies for Healthy Connections will generally not qualify for retroactive coverage, because there is no income-based Healthy Connections category that covers that person. By contrast, the same adult in an expansion state would likely qualify.
The non-expansion context also shapes the 2027 federal change. The One Big Beautiful Bill Act (H.R. 1) reduced the retroactive period to 1 month specifically for Medicaid expansion adults. Since South Carolina has no expansion adult population, that 1-month change does not apply to any current Healthy Connections enrollee. The applicable reduction for South Carolina is from 3 months to 2 months, which affects the traditional eligibility categories (children, pregnant women, parents, aged/blind/disabled). South Carolina residents should apply for Healthy Connections in 2026 before January 1, 2027, if they have outstanding bills from the past 3 months, because the 3-month window available in 2026 will not be available under the new federal rules.
What services Healthy Connections covers retroactively
Healthy Connections covers the same services during the retroactive period as during active enrollment. South Carolina cannot limit retroactive services to a narrower set than active enrollment services under the federal Medicaid Act. Covered services include inpatient hospital stays, outpatient hospital and clinic visits, emergency room care, physician office visits, laboratory and radiology services, mental health and substance use disorder treatment, pharmacy (prescription drugs on the Healthy Connections formulary), and transportation to medical appointments when medically necessary. For the retroactive period to pay a claim, the provider must be enrolled as a Healthy Connections Medicaid provider. Providers not enrolled in Healthy Connections at the time of service cannot be paid retroactively.
How to appeal a Healthy Connections retroactive coverage denial
South Carolina must send a written notice explaining any denial of retroactive coverage with the specific reason for denial. Common reasons include income over the limit in the specific month being requested, failure to meet categorical eligibility (e.g., not having a dependent minor child in the home), or a provider that was not enrolled in Healthy Connections at the time of service. Upon receiving a denial notice, you have the right to request a state fair hearing. File your appeal request within 90 days of the denial notice date. You can submit an appeal by mail to SCDHHS, P.O. Box 100101, Columbia, SC 29202, or by calling 1-888-549-0820. You may also request free legal assistance through SC Legal Services at 1-888-346-5592.
Healthy Connections does not allow continuation of retroactive benefits during an appeal, because the service was already provided in the past. However, if the appeal is successful, Healthy Connections must pay the provider for the services provided during the authorized retroactive months. If a provider has already sent the bill to a collection agency, your Healthy Connections approval and retroactive authorization are still valid: present the approval letter and retroactive authorization notice to the collector and ask them to submit the claim to SCDHHS.
What changes on January 1, 2027 for South Carolina retroactive Medicaid
The One Big Beautiful Bill Act (H.R. 1), signed on July 4, 2025, makes a nationwide change to the federal Medicaid retroactive eligibility period effective January 1, 2027. For traditional Medicaid enrollees (the categories that apply in non-expansion South Carolina), the retroactive look-back period is reduced from 3 months to 2 months. For Medicaid expansion adults, the period is reduced from 3 months to 1 month. Because South Carolina has not expanded Medicaid, the 1-month limit for expansion adults is not relevant. Healthy Connections enrollees in South Carolina will have a 2-month retroactive look-back starting January 1, 2027, down from the current 3 months.
South Carolina residents who have outstanding medical bills from 2026 should apply for Healthy Connections before December 31, 2026, if they want to maximize their retroactive window. An application submitted in December 2026 can cover September, October, and November 2026 under the current 3-month rule. The same application submitted on January 1, 2027 or later can cover only 2 months back. Hospitals and health systems in South Carolina are aware of this transition and may proactively contact recently treated patients who may be Healthy Connections eligible to encourage timely application.
Frequently Asked Questions
Does South Carolina Medicaid (Healthy Connections) pay for medical bills from before I applied?
Yes, in 2026. Healthy Connections evaluates the 3 calendar months before your application month and covers eligible bills if you would have qualified during those months. You must file Form FM3400-C with your application to request retroactive coverage. Starting January 1, 2027, the retroactive window narrows from 3 months to 2 months under federal law.
What is Form FM3400-C and why do I need it for retroactive coverage?
SCDHHS Form FM3400-C is the official Request for Retroactive Medicaid Coverage. Without it, SCDHHS does not automatically evaluate your eligibility for the 3 months before your application. You fill in the dates of services received and the household members involved. Download it at scdhhs.gov or pick it up at your county office. Submit it alongside your regular Healthy Connections application.
Who qualifies for Healthy Connections retroactive coverage in South Carolina?
The same populations eligible for Healthy Connections in the first place: children under 19 up to 208% FPL, pregnant women up to 194% FPL, parents or caretaker relatives of dependent children up to 62% FPL, and people who are aged, blind, or disabled. South Carolina is a non-expansion state, so childless adults without a disability or pregnancy have no Healthy Connections category and cannot use retroactive coverage.
What is the income limit by family size in South Carolina for Healthy Connections children's coverage in 2026?
Family size determines the exact income limit. For a family of 4, children qualify for Healthy Connections at up to $68,640 per year (208% of the 2026 Federal Poverty Level). Pregnant women in the same household qualify at up to $64,020 per year (194% FPL). Parents and caretaker relatives of those children qualify at up to $20,460 per year (62% FPL). These same thresholds apply to each of the retroactive months evaluated.
How many months back can Healthy Connections cover in 2026?
Up to 3 calendar months in 2026. If you apply in September 2026, Healthy Connections can cover eligible services from June, July, and August 2026. Coverage is granted only for months in which you actually met the eligibility requirements. Starting January 1, 2027, federal law (H.R. 1) reduces this to 2 months for South Carolina's eligible populations.
What happens if my provider is not enrolled in Healthy Connections?
Healthy Connections cannot pay providers who were not enrolled in the program at the time of service, even if you are retroactively approved. Ask your hospital or clinic whether they are a Healthy Connections provider before counting on retroactive payment. Most major South Carolina hospitals and Federally Qualified Health Centers (FQHCs) are enrolled. If the provider is not enrolled, the bill remains your responsibility even with Medicaid approval.
Is South Carolina a Medicaid expansion state?
No. South Carolina is one of 10 states that have not expanded Medicaid under the ACA as of 2026. This means adults aged 19-64 without a dependent child, disability, or pregnancy have no income-based Healthy Connections eligibility category. The ACA coverage gap affects adults between 0% and 100% FPL who do not fit a Healthy Connections category: they earn too little for ACA marketplace subsidies and have no Medicaid category.
How long does it take to get a retroactive Healthy Connections decision?
SCDHHS has up to 45 days to determine eligibility for most categories (children, pregnant women, parents). Aged, blind, and disabled determinations can take up to 90 days. The retroactive period evaluation is typically done concurrently with the main eligibility determination. Applying promptly, submitting all documents upfront, and completing Form FM3400-C accurately are the best ways to avoid delays.
