How long do families wait for Ontario autism services?
Ontario autism wait times for core clinical services now exceed **5+ years** (2026). Most families currently receiving invitations registered in 2020 or earlier. This delay far exceeds the sensitive early intervention window recommended by developmental specialists. [FAO]
Source: OAC FOI Mar 2026, FAO Report 2024
Public information
Direct answer
Quick Answer
How Many ABA Hours Does My Child Need?
Direct answer
According to the Behaviour Analyst Certification Board (BACB), intensive ABA therapy typically involves 20-40 hours per week and is recommended for children under 5 with significant skill deficits. Focused ABA involves 10-15 hours per week targeting specific goals. A Board Certified Behaviour Analyst (BCBA) determines the appropriate dosage based on your child's individualized assessment, age, and treatment objectives.
20-40 hrs/week
Intensive ABA
BACB Practice Guidelines 2014
10-15 hrs/week
Focused ABA
BACB Practice Guidelines 2014
1-3 years
Recommended Duration
Lovaas, 1987; Eldevik et al., 2009
FOI & Government Data
Last verified: March 4, 2026Sources: FAO Report 2023-24 (Financial Accountability Office of Ontario) · 2026 Ontario Budget (tabled March 26, 2026) · CBC News FOI investigation — bi-weekly OAP progress reports, Jun 2024 – Jan 2026, published Mar 30, 2026 (Nicole Brockbank & Angelina King) · MCCSS bi-weekly OAP Core Clinical Services progress reports, Dec 10, 2025 – Mar 4, 2026, obtained under Freedom of Information (release CSS2026-0749)
How Many ABA Hours Does My Child Need?
Intensive ABA: 20-40 hrs/week (BACB Practice Guidelines 2014)
Focused ABA: 10-15 hrs/week (BACB Practice Guidelines 2014)
Recommended Duration: 1-3 years (Lovaas, 1987; Eldevik et al., 2009)
Explore key points
Start with the short answer, then reveal deeper context where helpful.
Intensive vs Focused ABA
Intensive ABA (sometimes called Comprehensive ABA) involves 20-40 hours per week and addresses multiple developmental domains: communication, social skills, daily living, and behaviour. Research by Lovaas (1987) and subsequent meta-analyses by Eldevik et al. (2009) support intensive early intervention for children under 5 with significant skill gaps, showing IQ gains of 15-20 points and improved adaptive behaviour.
Focused ABA targets specific skills or behaviours with 10-15 hours per week. This model suits school-aged children, those with less pervasive skill deficits, or families transitioning from intensive to maintenance programming. The BACB recommends that a BCBA conduct a comprehensive assessment to determine the appropriate intensity for each individual child.
Determining the Right Dosage
Your BCBA should conduct a skills assessment (such as the VB-MAPP or ABLLS-R) to identify your child's current skill levels and develop treatment goals. The recommended intensity depends on: age (younger children generally benefit from more hours), severity of skill deficits, family capacity to implement strategies between sessions, and availability of complementary therapies like speech or OT.
Under the OAP, core clinical services funding of $6,600–$65,000/year can fund approximately 20-25 hours per week of RBT-delivered ABA at typical Ontario rates ($50-65/hour), plus BCBA supervision. Families should discuss budget allocation with their provider to maximize therapy hours.
Intensive vs Focused ABA
Intensive ABA (sometimes called Comprehensive ABA) involves 20-40 hours per week and addresses multiple developmental domains: communication, social skills, daily living, and behaviour. Research by Lovaas (1987) and subsequent meta-analyses by Eldevik et al. (2009) support intensive early intervention for children under 5 with significant skill gaps, showing IQ gains of 15-20 points and improved adaptive behaviour.
Focused ABA targets specific skills or behaviours with 10-15 hours per week. This model suits school-aged children, those with less pervasive skill deficits, or families transitioning from intensive to maintenance programming. The BACB recommends that a BCBA conduct a comprehensive assessment to determine the appropriate intensity for each individual child.
Determining the Right Dosage
Your BCBA should conduct a skills assessment (such as the VB-MAPP or ABLLS-R) to identify your child's current skill levels and develop treatment goals. The recommended intensity depends on: age (younger children generally benefit from more hours), severity of skill deficits, family capacity to implement strategies between sessions, and availability of complementary therapies like speech or OT.
Under the OAP, core clinical services funding of $6,600–$65,000/year can fund approximately 20-25 hours per week of RBT-delivered ABA at typical Ontario rates ($50-65/hour), plus BCBA supervision. Families should discuss budget allocation with their provider to maximize therapy hours.
Frequently asked questions
BACB guidelines recommend 20-40 hours/week for intensive ABA (typically children under 5 with broad skill deficits) and 10-15 hours/week for focused ABA targeting specific goals. Your BCBA determines the appropriate dosage through individualized assessment.
Not necessarily. Research supports intensive hours for young children with significant delays, but quality matters more than quantity. A well-designed program with trained staff and consistent implementation at 15 hours may outperform a poorly designed 30-hour program.
Yes. OAP core clinical services funding of $6,600–$65,000/year can fund approximately 20-25 hours/week of direct ABA therapy at typical Ontario RBT rates, plus BCBA supervision. Budget allocation should be planned with your provider.
Sources
1
BACB
Behaviour Analyst Certification Board, Applied Behavior Analysis Treatment of Autism Spectrum Disorder: Practice Guidelines for Healthcare Funders and Managers (2014)
2
Research
Eldevik et al. (2009), "Meta-Analysis of Early Intensive Behavioral Intervention for Young Children with Autism," Journal of Clinical Child & Adolescent Psychology, 38(3), 439-450
Commitment to Accuracy: Our data is verified against official government reports (FAO, MCCSS), peer-reviewed scientific literature, and accessible public records. Last updated: March 24, 2026.
Next Steps
Next Steps
These statistics represent real children missing their critical developmental windows.