When a child on Medicaid turns 18 in Florida, the state stops looking at the household’s income and starts evaluating the young adult on their own. Because Florida has not expanded Medicaid, there is no general low-income adult category, and many 18-year-olds lose coverage unless they fit a specific group: people on SSI, people with high medical costs under the Medically Needy program, parents and caretaker relatives, or former foster youth. The transition is not automatic in the sense families often assume, and the gap between losing children’s Medicaid and finding something else is where most of the damage happens.
What Changes at 18
Florida Medicaid covers children ages 6 through 18 in households up to 133% of the federal poverty level, and younger children at higher thresholds.1Medicaid.gov. Medicaid, Children’s Health Insurance Program, and Basic Health Program Eligibility Levels Once your child turns 18, that household-based test is replaced with an individual eligibility review conducted by the Florida Department of Children and Families.
The problem is what the review is measured against. Florida is one of ten states that have not expanded Medicaid to cover low-income adults as a group.1Medicaid.gov. Medicaid, Children’s Health Insurance Program, and Basic Health Program Eligibility Levels A healthy 18-year-old with no disability and no child of their own has no eligibility category to fall into, no matter how low their income is. Qualifying as an adult means fitting into one of the narrow groups below.
Who Still Qualifies for Adult Medicaid
SSI Recipients
Anyone receiving Supplemental Security Income in Florida is automatically enrolled in Medicaid without a separate application.2Florida Department of Children and Families. SSI-Related Medicaid Fact Sheet SSI itself is for people with limited income and resources who are aged, blind, or have a qualifying disability.3Social Security Administration. SSI and Eligibility for Other Government and State Programs
In 2026, an individual on SSI cannot have countable resources above $2,000.4Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet Countable resources include bank accounts, stocks, and a second vehicle, but exclude the primary home, one vehicle, household goods, burial plots, and ABLE account funds up to $100,000. The maximum monthly SSI payment for an individual in 2026 is $994.5Social Security Administration. How Much You Could Get From SSI One important wrinkle: once a child turns 18, SSI stops counting the parents’ income and resources and looks only at the young adult’s own finances. A child previously denied SSI because the parents earned too much may qualify in their own right at 18.
The Medically Needy Program
Florida’s Medically Needy program helps people whose income exceeds standard Medicaid limits but who have significant medical expenses. DCF calculates a monthly “share of cost” based on household size and income, functioning like a deductible. Once allowable medical expenses for the month reach that amount, Medicaid covers the rest of the month.6Florida Department of Children and Families. Medically Needy Program
Expenses that count toward the share of cost include unpaid medical bills, bills paid within the last three months, health insurance premiums, copays, prescribed medical services, and ambulance or medical transportation. Over-the-counter supplies and certain insurance premiums do not count. Proof can be submitted through the MyACCESS portal, by fax, by mail, or in person.6Florida Department of Children and Families. Medically Needy Program
Parents, Caretakers, and Former Foster Youth
Young adults ages 19 and 20 who are parents or caretaker relatives may qualify at up to 24% of the federal poverty level, roughly $315 per month for a single person.1Medicaid.gov. Medicaid, Children’s Health Insurance Program, and Basic Health Program Eligibility Levels That threshold is so low that even a part-time job will usually push a young adult above it. Young adults who aged out of foster care remain eligible for Medicaid until age 26 under a separate federal coverage group.
The SSI Age-18 Redetermination
Children who received SSI based on a childhood disability face a separate review during the year after they turn 18. The Social Security Administration must redetermine eligibility using adult disability standards rather than the childhood criteria that originally qualified them.7Social Security Administration. Code of Federal Regulations 416.987
The adult standard is stricter. Childhood SSI looks at whether a condition causes “marked and severe functional limitations.” The adult test asks whether a person can engage in “substantial gainful activity.” A meaningful share of young adults lose SSI at this redetermination, and when SSI goes, so does the automatic Medicaid tied to it. Start gathering updated medical records, treatment history, and functional assessments well before the 18th birthday. If SSI is denied, you have 60 days to appeal, and benefits can continue during the appeal if you request continuation within 10 days of the denial notice.
Waiver Options for Young Adults With Disabilities
Florida runs two home and community-based waiver programs that fund services as an alternative to institutional care.
The Developmental Disabilities Individual Budgeting (iBudget) Waiver serves people age 3 and older with autism, developmental disabilities, or intellectual disabilities who meet the level of care of an intermediate care facility.8Florida Agency for Health Care Administration. Developmental Disabilities Individual Budgeting (iBudget) Waiver Services include residential support, respite care, supported employment, behavioral analysis, therapy, and transportation.9Medicaid.gov. Florida Medicaid Waiver Factsheet
The Long-Term Care Waiver covers people ages 18 through 64 with physical disabilities, brain injuries, HIV/AIDS, or medically fragile conditions who need a hospital or nursing facility level of care. Services include attendant care, personal care, adult companion services, home-delivered meals, home modifications, and skilled nursing.9Medicaid.gov. Florida Medicaid Waiver Factsheet
The waitlist is the catch. More than 22,000 people are on the iBudget list, many for a decade or more. If your child may need waiver services as an adult, get on the waitlist through the Agency for Persons with Disabilities as early as possible. Waiting until 18 to apply usually means years without services.
Benefits That Shrink Even if Coverage Continues
A young adult who stays on Medicaid still loses benefits over time. Federal law requires states to provide Early and Periodic Screening, Diagnostic, and Treatment (EPSDT) services to all Medicaid-eligible people under age 21.10Office of the Law Revision Counsel. 42 U.S. Code 1396d – Definitions EPSDT covers comprehensive health screenings, vision care including eyeglasses, dental care including fillings and extractions, hearing services, and essentially any treatment a doctor finds medically necessary.11Florida Agency for Health Care Administration. Early and Periodic Screening, Diagnostic and Treatment (EPSDT) Benefit An 18-year-old who keeps Medicaid continues to receive EPSDT until age 21.
After 21, states are not required to cover adult dental benefits at all. Florida’s adult dental coverage focuses on emergency-based services: exams, x-rays, extractions, dentures, sedation, and pain management. Some plans add cleanings, fillings, fluoride, and extra x-rays, but these are plan extras rather than guaranteed services.12Florida Agency for Health Care Administration. Florida Medicaid Dental Comprehensive vision and hearing benefits also become optional once EPSDT ends. If your child has pending dental or vision needs, schedule those appointments while EPSDT still applies.
What to Do if Medicaid Ends
If your child does not fit an adult category, there are three realistic alternatives.
A Parent’s Health Plan to Age 26
Any health plan that offers dependent coverage must extend it until the child turns 26, whether the child is a student, married, living at home, or financially independent.13eCFR. 45 CFR 147.120 – Eligibility of Children Until at Least Age 26 The rule applies to employer plans and individual market plans alike.14U.S. Department of Labor. Young Adults and the Affordable Care Act FAQs If a parent has dependent coverage available, this is usually the simplest bridge.
The Health Insurance Marketplace
Losing Medicaid triggers a Special Enrollment Period. If you lost Medicaid or CHIP coverage within the past 90 days, you can enroll in a HealthCare.gov plan outside the normal open enrollment window.15HealthCare.gov. Getting Health Coverage Outside Open Enrollment Miss the window and you wait for the next open enrollment, which can mean months without insurance. Many young adults qualify for premium tax credits that lower their monthly premium, and the Marketplace can apply the credit directly so the out-of-pocket cost each month is smaller.16Internal Revenue Service. The Premium Tax Credit – The Basics
Community Health Centers
Federally qualified health centers across Florida provide medical, dental, and behavioral health care on a sliding fee scale and serve patients regardless of insurance status. They are a practical safety net during any gap.
Steps to Take Before the 18th Birthday
Families who handle this transition well start six months to a year before the birthday. The list is short:
- Schedule outstanding medical, dental, and vision appointments while EPSDT still guarantees comprehensive coverage.
- Gather updated medical records, treatment history, and functional assessments if your child receives SSI, so the age-18 redetermination has a strong file.
- Apply for the iBudget waiver through the Agency for Persons with Disabilities as early as possible if your child has a developmental disability. The waitlist runs years.
- Check whether a parent’s employer plan offers dependent coverage, and learn the process to add your child so it is ready as a backup.
- Contact DCF to understand how the redetermination will work for your child’s specific situation and what documents you will need to submit.
Losing children’s Medicaid at 18 does not have to mean losing healthcare. The window between one form of coverage ending and another beginning is where costly mistakes happen, and the way to keep that window closed is to act before the birthday, not after.