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The transition & turning-18 timeline
The jump from school services to adult life has a cliff most families never see coming — and some doors only open at exact ages. Here's the whole map, year by year, so nothing catches you by surprise.
Why start early: "transition" sounds like an 18-year-old's problem, but the law says planning must begin by age 16 (earlier in many states), and the best outcomes come from families who start at 14. Starting now means more options and zero panic later.
14–15
Plant the seeds
Middle of high school
- Ask for a transition plan in the IEP. By law it must be in place by 16 — but you can request it be added now. It should name real goals for life after school: work, more school, independent living.
- Start a "vision" conversation. What does a good adult life look like for your child? Their interests today point the way. Let them lead.
- Build life skills on purpose — money, cooking, transportation, self-care. These belong in the IEP too, not just academics.
- Invite your child to their own IEP meeting. Even for 10 minutes. This is where self-advocacy starts.
16
The plan gets real
Legally required now
- Transition services must be active in the IEP — measurable post-school goals plus the steps and services to reach them.
- Connect with your state Vocational Rehabilitation (VR) agency. They fund job training, coaching, even college support — free, but waitlists exist, so apply early.
- Explore work: volunteering, a first job, school work-study. Real experience is the single best predictor of adult employment.
- Look into a state ID or driver's-ed plan, and how your child will travel independently.
17
Decide before the birthday — this is the cliff
The year that matters most
- Decide how your child will make decisions at 18. At the age of majority, the law treats them as a full adult — they sign their own IEP and consent to their own medical care — unless you've set up an alternative. Don't let this decide itself by default.
- Apply for SSI timing: a child can be re-evaluated for Supplemental Security Income (SSI) at 18 based on their own income, so many who didn't qualify before now do. You can apply right at the 18th birthday.
- Open an ABLE account — a tax-free savings account that lets a person with a disability save money without losing SSI/Medicaid. Game-changing and widely unknown.
- Register to vote & (for males) Selective Service — both happen at 18 and can affect aid.
⚠️ The single most-missed step: the "transfer of rights." The school must tell you that at 18, educational rights pass to your child. Sort out the decision-making plan before the birthday — see the options below.
18
Adulthood, on paper
The birthday
- Educational rights transfer to your child. If you've chosen guardianship or supported decision-making, your paperwork keeps you in the room.
- File the SSI application if you haven't — and ask about Medicaid, which often comes with it.
- Adult Medicaid waivers: get on the list now. Some have multi-year waits, and the list date is what counts.
- Keep the IEP going. Services continue until graduation with a regular diploma or up to age 21–22 (varies by state) with a certificate track. Don't accept a diploma that ends services before your child is ready.
18–22
Bridge to adult life
After high school
- Use every year of eligibility. Many students stay in transition programming to 21–22 for job coaching and life skills — it's free and it works.
- Adult services: VR for employment, your state's developmental-disability agency for ongoing support, ABLE for savings, day or community programs as needed.
- College path? Disability services offices, and a growing number of inclusive college programs for students with intellectual disabilities.
- Build the team that replaces the school — the school was the hub for 18 years; now you assemble the adult version. You've got this.
The big decision: how your adult child will make decisions
Supported decision-making
Your child keeps their legal rights and chooses trusted people to help them understand and decide. Least restrictive; preferred when possible. A simple signed agreement.
Power of attorney / health proxy
Your child (if able) names you to handle finances or medical choices. Flexible, revocable, no court.
Guardianship / conservatorship
A court gives an adult legal authority to decide for your child. Most protective but most restrictive — and it's a court process, so start months ahead.
Nothing (the default)
At 18 your child decides everything alone. Right for some; a real risk for others. The point is to choose on purpose, not arrive here by accident.
Which one fits depends on your child — there's no single right answer, and you can often combine the gentler options. An advocate or disability attorney can help you choose; our first reply is free.
You don't have to figure adulthood out overnight — you have years, and now you have the map.
When you want someone who's walked this with families, our first reply is always free.