Is 40 Hours of Autism Therapy Too Much? What Parents Need to Know

For some autistic children, a therapy schedule can look remarkably similar to a full-time job. Five days a week, several hours a day, with limited time left for school, play or simply being at home. Families are often told that early intervention matters, but how much therapy does a young child actually need?

That question is receiving renewed attention after an October 21, 2026 investigation by The Wall Street Journal and new federal guidance from the Centers for Medicare & Medicaid Services. Both raise concerns about lengthy applied behavior analysis therapy schedules and whether treatment recommendations always reflect a child’s individual needs.

The debate is not about whether autistic children should receive support. It is about how to determine the right amount, whether more hours consistently produce better results and how families can recognize when a treatment plan needs to change.

Investigation finds major differences in autism therapy hours

In an investigation published on October 21, The Wall Street Journal examined Medicaid billing records from five major autism therapy companies backed by private equity investors. Together, the companies billed for an average of 29 percent more weekly treatment hours per patient than local competitors in 2024.

Four of the five companies had higher average hours than their local comparison groups. The investigation also included accounts from former employees who described pressure to maintain lengthy treatment schedules and maximize billable services.

All five companies said treatment recommendations were based on clinical needs rather than financial considerations. The providers with higher average billing hours also argued that differences in the children they serve could help explain the findings.

Those distinctions matter. Billing data alone cannot establish whether a particular child received excessive therapy, and higher treatment intensity is not automatically evidence of inappropriate care. Nevertheless, the investigation raises questions about how treatment hours are determined and how providers document their decisions.

Why 40 hours of ABA therapy has become controversial

Applied behavior analysis, commonly called ABA, is an approach that uses principles of learning and behavior to support the development of skills. Depending on the child and the program, it may address communication, daily living skills, participation in activities or behaviors that create significant safety concerns.

ABA programs vary considerably in their methods and intensity. Some interventions focus on a few specific goals, while comprehensive programs address several developmental areas over many hours each week.

Forty hours of therapy represents eight hours a day across a five-day week. For a preschool child, that can occupy most of the time ordinarily available for education, play, family routines and other activities.

Some clinicians maintain that children with substantial support needs may benefit from more intensive treatment. Others question whether routinely recommending such lengthy schedules is supported by sufficiently strong evidence.

The central issue is whether the number of hours is justified by the child’s actual needs rather than selected because a provider routinely offers full-time programs.

New federal guidance questions 40-hour treatment schedules

On August 4, 2026, the Centers for Medicare & Medicaid Services released a comprehensive toolkit for state Medicaid and Children’s Health Insurance Program agencies. The document addresses treatment planning, provider qualifications, spending, clinical oversight and the appropriate intensity of ABA services.

In the section discussing treatment frequency, CMS states that 40 hours of ABA per week is not considered a best practice. Its concerns include inadequate time for ordinary childhood activities such as eating, taking naps and using the bathroom.

The toolkit emphasizes that therapy should be planned individually. It also advises against authorizing higher-intensity services by default without documentation showing why extensive treatment is necessary.

Importantly, the federal government has not banned 40-hour ABA programs. The toolkit is guidance for states and does not create new nationwide treatment limits or automatically change a child’s existing Medicaid benefits.

CMS explicitly says its recommendations do not override clinical judgment or reduce existing Medicaid obligations to cover medically necessary services.

Federal data show autism therapy spending has increased sharply

The financial scale of ABA services has expanded considerably. According to the new CMS toolkit, Medicaid and CHIP payments for ABA services increased from approximately $1.94 billion in 2021 to $10.1 billion in 2025.

That represents growth of approximately 421 percent in four years. The total includes ABA services provided to beneficiaries with and without an autism diagnosis, so it should not be interpreted as spending exclusively on autistic children.

CMS also reports that the number of children with an autism diagnosis receiving ABA through Medicaid or CHIP increased by 189 percent between 2021 and 2025. More children obtaining support explains part of the expansion, but the agency is also examining service intensity, billing practices and other drivers of higher costs.

In 2025, Medicaid and CHIP beneficiaries receiving ABA for autism averaged approximately 17.3 hours of treatment per week. That figure is a national average, not a recommended amount for every child.

The spending increases have prompted greater oversight of autism services. But higher public expenditure does not itself prove that treatment is unnecessary or ineffective.

Does more ABA therapy produce better outcomes?

The scientific evidence is more complicated than a simple comparison between 20 and 40 hours. Some studies have found that greater treatment intensity is associated with larger improvements in certain skills, while others have found no consistent relationship between increasing hours and better outcomes.

A 2024 meta-analysis published in JAMA Pediatrics examined the relationship between intervention amount and outcomes for young autistic children. The researchers did not find evidence that greater intervention amounts consistently produced larger benefits across the studies they examined.

That does not establish that intensive treatment never helps. The research includes different approaches, participant groups and outcome measures, and studies have not always been designed to identify the ideal number of hours for an individual child.

A National Academies assessment of ABA evidence reached a more differentiated conclusion. Its committee considered that 10 to 20 hours per week may produce positive outcomes for many autistic individuals, while those with particularly substantial support needs may require greater intensity, potentially including 30 to 40 hours.

However, the committee did not endorse a uniform number of hours for everyone. It emphasized individual goals, family priorities, the child’s response to intervention and the professional judgment of qualified clinicians.

Therapy should not replace the rest of childhood

The number of hours in a treatment plan is only one consideration. Parents also need to understand what happens during those hours, how breaks are handled and whether the child has opportunities for school, play, friendships and family life.

An autistic child may benefit from predictable routines and structured support while still needing downtime, sensory accommodations and opportunities to choose activities. A treatment plan should account for these needs rather than treating every available hour as a potential therapy session.

There is also a difference between learning skills within ordinary activities and being expected to participate continuously in structured treatment. The quality and purpose of an intervention cannot be determined from the weekly schedule alone.

North Carolina has introduced particularly explicit guidance on this issue. In an August 31, 2026 Medicaid bulletin, the state warns that a child falling asleep during treatment may indicate excessive intensity.

The state further explains that reports of children being awakened or forced to remain awake so treatment can continue may prompt an investigation into potential harm. These are North Carolina Medicaid requirements and should not be mistaken for identical rules in every state.

What parents should ask before agreeing to 40 hours of therapy

A lengthy recommendation should come with an equally clear explanation. Parents can ask the supervising clinician to show how the proposed hours connect to specific goals, how progress will be measured and what will happen if the child appears overwhelmed.

These questions can help families assess a proposed ABA schedule.

• Why does my child need this number of hours? Ask which individual assessment findings support the recommendation and whether a lower-intensity plan was considered.
• What skills will therapy address? Goals should be meaningful to the child and family, such as functional communication, independence or safety, rather than simply making autistic characteristics less visible.
• How are breaks and rest protected? Ask how the program responds when a child is tired, distressed, hungry or needs quiet time.
• How will therapy fit around school and family life? The treatment plan should account for other services, education and everyday activities.
• How often will we review progress? Ask when the schedule can be adjusted, what evidence supports increasing or reducing hours and who makes those decisions.
• What happens if we disagree? Find out how to request a treatment review, seek a second opinion or discuss alternative services.

Parents can also ask about staff qualifications, supervision and whether the child works with consistent caregivers. A written treatment plan should explain the goals and provide a basis for discussing whether the approach remains appropriate.

Warning signs that a therapy schedule may need review

Not every difficult therapy session indicates that treatment is inappropriate. Learning new skills can involve frustration, and some children need support with activities they initially find challenging.

However, persistent exhaustion, increasing distress, lost opportunities for school or recreation, or pressure to continue when a child needs rest should prompt a conversation with the clinical team. Parents should also be concerned if a provider cannot explain why a particular number of hours is necessary.

The child’s own experience matters. For children who communicate without spoken language or find it difficult to describe discomfort, caregivers and professionals should pay particular attention to individual signs of distress and willingness to participate.

Goals that prioritize obedience, forced eye contact or suppressing harmless autistic behavior deserve careful scrutiny. Support should aim to improve communication, safety, participation and quality of life without disregarding autonomy or sensory needs.

If a child appears to be experiencing mistreatment or immediate harm, parents should take steps to protect the child and contact the appropriate responsible authorities. Otherwise, concerns about treatment intensity can be addressed through a documented review and, when appropriate, an independent clinical opinion.

Is intensive ABA right for every autistic child?

No single therapy schedule is appropriate for every child. Autism is a spectrum, and children differ in communication, support needs, development, sensory experiences and other health conditions.

A child who needs extensive assistance with communication or essential daily activities may benefit from a different level of support than one receiving targeted help with a specific difficulty. Those decisions should also account for the child’s preferences and how the intervention affects daily life.

ABA is not the only approach available. Depending on individual needs, families may consider speech and language therapy, occupational therapy, developmental interventions, educational supports and other evidence-informed services.

The CMS toolkit explicitly states that Medicaid does not require one particular autism treatment approach. Eligible children should receive medically necessary services consistent with applicable Medicaid coverage rules, which may include ABA or other appropriate interventions.

What the new guidance means for Medicaid families

For parents whose children already receive ABA, the August federal toolkit does not automatically cancel treatment authorizations or impose a nationwide limit. Its purpose is to help states review how services are provided, documented, funded and supervised.

Individual states may adopt their own policies or modify existing requirements. Families should therefore check current guidance from their Medicaid program or health plan rather than assuming the same rules apply across the country.

If a provider recommends a major change in therapy hours, families can ask for the clinical reasoning in writing. When an insurer makes a coverage decision, the notice and available review or appeal procedures are important.

The bigger change may be increased attention to whether treatment plans are genuinely individualized. Regulators, insurers and families are asking for clearer evidence that services are appropriate and beneficial for the child receiving them.

Why the debate matters beyond therapy hours

The October investigation and the federal response have put an important question into the national spotlight. Who determines how much autism therapy a child needs, and how can families be confident the answer is based on the child’s wellbeing?

Financial incentives deserve scrutiny, particularly when insurers pay providers according to the number of services delivered. At the same time, children who genuinely need intensive support should not lose access simply because their treatment is expensive.

The emerging evidence does not support a single ideal number of ABA hours for every autistic child. It supports taking individual needs seriously, regularly reviewing outcomes and protecting time for the rest of childhood.

For parents, the most useful question may not be whether 40 hours is always too much. It is whether the recommended treatment helps their child achieve meaningful goals while respecting their health, comfort and right to participate in everyday life.

Sources

The Wall Street Journal. Long Hours, Few Naps, the Business Math of Autism Therapy. October 21, 2026. (Paywalled; the headline could not be independently verified.)

Centers for Medicare & Medicaid Services. State Medicaid and Children’s Health Insurance Program Applied Behavior Analysis Toolkit. August 2026.

Centers for Medicare & Medicaid Services. CMS Launches New State Toolkit to Protect Children with Autism, Strengthen Oversight of Applied Behavior Analysis Services. August 4, 2026.

Sandbank, M. et al. Determining Associations Between Intervention Amount and Outcomes for Young Autistic Children: A Meta-Analysis. JAMA Pediatrics, 2024.

National Academies of Sciences, Engineering, and Medicine. Chapter 5, Evidence Base for Applied Behavior Analysis. In: The Comprehensive Autism Care Demonstration: Solutions for Military Families. 2025.

North Carolina Medicaid. Updated Reminder: Requirements for Research-Based Behavioral Health Treatment Service Delivery – Aug. 31, 2026. August 31, 2026.

Council of Autism Service Providers. CASP Responds to New York Times Articles. May 29, 2026.