The Free and Low-Cost Ways to Get a Child Evaluated for Autism

The free first step is a screening your pediatrician already provides

Your child's pediatrician performs developmental surveillance at every well-child visit and administers a standardized autism screen at the 18-month and 24-month checkups — and this is part of routine, insured pediatric care, not an extra you pay for out of pocket 1Ref 1American Academy of Pediatrics (2024).Developmental Surveillance and Screening.That developmental surveillance occurs at every well-child visit and that standardized autism screening is recommended at the 18- and 24-month checkups as part of routine pediatric care.. That visit is the cheapest and fastest way to turn a private worry into a documented concern and a referral. A positive screen is a ticket to an evaluation, not a diagnosis. The most widely used tool is the M-CHAT-R/F, a short parent questionnaire; the official version is available at mchatscreen.com. A concerning result means your child should have a fuller evaluation — it does not, on its own, mean your child is autistic, and it is not something you score at home to reach a verdict.

Early intervention evaluates children under three, free, and you can start it yourself

If your child is younger than three, the single most reliable free route is your state's Part C early intervention program, created under the federal IDEA law so that every state runs one. The developmental evaluation it provides is free, and federal regulations require it to be at no cost to families 2Ref 2Center for Parent Information and Resources (OSEP-funded) (2023).Part C of IDEA: Early Intervention for Babies and Toddlers.How a family accesses Part C early intervention for a child under three — parent referral, the free developmental evaluation, and the Individualized Family Service Plan (IFSP).3Ref 3U.S. Department of Education, Office of Special Education Programs (2024).Part 303 (Part C) — Early Intervention Program For Infants And Toddlers With Disabilities.The federal regulatory basis of Part C, including that evaluation and eligibility determination lead to an IFSP, and that the state system is provided at no cost to families for evaluation.. You do not need a doctor's referral or a diagnosis to begin — a parent can refer their own child, which is how to request early intervention in most places: one phone call or online form to the state's early intervention or "Part C" office.

Part C is the birth-to-three portion of IDEA; the school-age portion is Part B. A Part C early intervention evaluation looks at how your child communicates, plays, moves, and relates, and it determines eligibility for services — speech therapy, occupational therapy, developmental support — written into an Individualized Family Service Plan, or IFSP 2Ref 2Center for Parent Information and Resources (OSEP-funded) (2023).Part C of IDEA: Early Intervention for Babies and Toddlers.How a family accesses Part C early intervention for a child under three — parent referral, the free developmental evaluation, and the Individualized Family Service Plan (IFSP).3Ref 3U.S. Department of Education, Office of Special Education Programs (2024).Part 303 (Part C) — Early Intervention Program For Infants And Toddlers With Disabilities.The federal regulatory basis of Part C, including that evaluation and eligibility determination lead to an IFSP, and that the state system is provided at no cost to families for evaluation.. One thing to understand up front: early intervention decides eligibility for services, and does not always issue a formal medical autism diagnosis. Many children receive months of free therapy through this route while a separate diagnostic evaluation is still on a waitlist. The services an IFSP authorizes — speech, occupational, or developmental therapy — are typically delivered in your child's natural environment, at home or in daycare, and the plan is reviewed as your child grows and their needs change 3Ref 3U.S. Department of Education, Office of Special Education Programs (2024).Part 303 (Part C) — Early Intervention Program For Infants And Toddlers With Disabilities.The federal regulatory basis of Part C, including that evaluation and eligibility determination lead to an IFSP, and that the state system is provided at no cost to families for evaluation.. You can pursue the free early intervention route and a medical evaluation at once; they do not cancel each other out 4Ref 4Centers for Disease Control and Prevention (2024).Accessing Services for Autism Spectrum Disorder.That families can access early intervention (Part C) and school services (Part B) without waiting for a completed formal diagnosis..

From age three, your school district must evaluate for free on request

Once a child turns three, the free evaluation shifts from early intervention to the public school system under Part B of IDEA — and it applies even before your child is enrolled or attends class. On a written request from a parent, the local school district must conduct a special-education evaluation at no cost, and families can access these school services without first obtaining a private diagnosis 4Ref 4Centers for Disease Control and Prevention (2024).Accessing Services for Autism Spectrum Disorder.That families can access early intervention (Part C) and school services (Part B) without waiting for a completed formal diagnosis.. The request works best in writing, dated, and specific, because a written request is what starts the legal timeline the district has to respond within.

A school evaluation answers a narrower question than a doctor does: whether your child is educationally eligible for special-education support, often under an eligibility category rather than a medical label. That is not the same document as a clinical DSM-5 diagnosis, and the two can even reach different conclusions — a school may find a child eligible for services without any doctor's diagnosis, or a child may carry a medical diagnosis that a school decides does not affect learning enough to qualify. Both are legitimate; they answer different questions. If your goal is insurance-funded therapy, you may still need the medical evaluation as well.

If your child has Medicaid, the evaluation is already covered

Children enrolled in Medicaid have a strong, often-overlooked entitlement: the EPSDT benefit — Early and Periodic Screening, Diagnostic, and Treatment — requires state Medicaid programs to cover medically necessary services for enrollees under 21, and that includes the diagnostic evaluation 5Ref 5American Speech-Language-Hearing Association (2024).Medicaid Toolkit: EPSDT.That the EPSDT benefit requires Medicaid to cover medically necessary services, including diagnostic evaluation, for enrolled children under 21.. Since a 2014 federal clarification, that coverage also extends to medically necessary treatment for autism, such as ABA and other therapies, when a child qualifies 6Ref 6Centers for Medicare & Medicaid Services (2024).Autism Services.That under EPSDT, state Medicaid programs must cover medically necessary services to treat autism — clarified federally in 2014 — including therapies such as ABA when a child qualifies.. In practice this means the evaluation and much of what follows it can be covered rather than paid out of pocket.

EPSDT requires Medicaid to cover medically necessary services for enrolled children under 21 5Ref 5American Speech-Language-Hearing Association (2024).Medicaid Toolkit: EPSDT.That the EPSDT benefit requires Medicaid to cover medically necessary services, including diagnostic evaluation, for enrolled children under 21.. To use it, the usual path is a referral from your child's Medicaid-enrolled pediatrician to an evaluator who accepts Medicaid. The friction here is rarely the cost and more often the wait and the local supply of Medicaid-accepting evaluators, which varies widely by state. It is still worth starting, because once the evaluation is done, the same benefit is what funds the therapies afterward 6Ref 6Centers for Medicare & Medicaid Services (2024).Autism Services.That under EPSDT, state Medicaid programs must cover medically necessary services to treat autism — clarified federally in 2014 — including therapies such as ABA when a child qualifies..

University clinics and research studies often evaluate at low or no cost

University-affiliated developmental and psychology clinics are a second low-cost tier worth investigating. Training clinics, where supervised graduate students conduct assessments under licensed faculty, frequently charge on a sliding scale far below private-practice fees. Separately, some universities run autism research studies that include a full diagnostic evaluation at no charge for families who enroll — a research-study evaluation can be a genuine free route, not just a questionnaire.

To find these without anyone selling you anything: look at the developmental-behavioral pediatrics, psychology, or communication-sciences departments of universities and academic medical centers in your region, and search autism research registries for studies recruiting children in your child's age range. University research recruitment listings state the eligibility criteria and exactly what the study provides. Two honest caveats: a research evaluation is designed to answer the study's question, so it may not hand you a report formatted precisely the way an insurer or school wants; and sliding-scale training clinics still have waitlists. Neither is a reason to skip them — both can move faster than a hospital developmental clinic.

Community health centers and sliding-scale options for the uninsured

Families without insurance still have routes that are not full private-pay. Federally Qualified Health Centers — community clinics funded to serve everyone regardless of ability to pay — charge on a sliding fee scale tied to household income, and many either screen developmentally themselves or connect families to an evaluator. If you are weighing uninsured evaluation options, an FQHC sliding fee is usually the lowest-cost door into the medical system.

An FQHC may not employ its own autism specialist, so the realistic role it plays is the referral and the paperwork: a screening, a documented concern, and a connection to a developmental evaluator, sometimes within the same health system. For older children and adults, the same sliding-fee principle applies at community mental-health centers. None of this is instant, and the cash-pay tradeoffs are real — a sliding-scale evaluation trades money saved for time waited. But for a family with no coverage, it is the difference between a route and no route.

Which free route fits your situation

The right free route depends mostly on two things: your child's age and whether they have Medicaid. Use the table below to find the door that fits, then start it yourself — none of these require you to wait for someone else to refer you. More than one row can apply at once, and pursuing two in parallel is often the fastest way through.

Starting any of these is a matter of a few calls and one letter, and you can set them all in motion in a single week. For a child under three, search your state's name plus "early intervention" or "Part C" to find the intake number, then call and say you want to refer your child for a developmental evaluation — you do not need to explain a diagnosis, a concern is enough. For a child three or older, send the district a short, dated letter requesting a full special-education evaluation and keep a copy, because that date starts the district's clock. At the pediatrician, ask for the screen and, if it is concerning, a referral that names several clinics rather than one. Keep a single page listing every call — who you spoke to, the date, the wait quoted, the next step — and four parallel routes stay a plan instead of becoming a pile of good intentions.

What "free" does and doesn't get you

The honest limit of the free routes is this: they are excellent at unlocking services and uneven at producing a formal medical diagnosis. Early intervention and school evaluations establish eligibility for therapy and support — often the thing a family actually needs first — but they do not always issue the DSM-5 diagnosis that private insurance requires to fund ABA or other treatment. Knowing which document you need prevents wasted months.

If a formal medical diagnosis is your goal — for insurance-funded therapy, or simply for clarity — you may still need a clinical evaluation on top of the free educational one, and it helps to know the autism evaluation cost ranges before you commit, so you can compare paying cash against waiting for a covered slot. Whatever route you choose, a little preparation pays off: getting ready for the evaluation day by writing down your specific concerns, gathering short videos of the behaviors that worry you, and listing developmental milestones makes every evaluation — free or paid — more accurate. Start the free routes now; they cost nothing to begin, and you can layer a paid evaluation on later if you find you need one.