In brief
Follow these steps to get your child assessed for autism in Ontario. The process typically takes 2-6 months through private assessment, or 12-24 months through public channels.
Discuss concerns with your pediatrician or family doctor
Decide between public or private assessment options
Locate assessment providers in your area
Undergo comprehensive autism evaluation
Get written diagnosis and documentation
Call immediately to secure waitlist position
Understanding the trade-offs between public and private assessment options can help you make the right decision for your family.
| Factor | Public (OHIP) | Private Assessment |
|---|---|---|
| Cost | Free (OHIP) No out-of-pocket expense | $2,500-$4,000 Psychological associates may charge less |
| Wait Time | 12-24 months Some regions report 2+ year waits | 2-4 months From contact to report completion |
| Referral Required | Yes From doctor or pediatrician | Sometimes Depends on provider |
| Assessment Quality | Comprehensive Uses standardized protocols | Comprehensive Often more detailed reports |
| OAP Eligible | Yes Qualifies for OAP funding | Yes If assessor is qualified |
| Scheduling | Limited Assigned based on availability | Flexible Can choose your provider and times |
Many Ontario families successfully pursue both options simultaneously. Get on the public waitlist for free assessment while arranging private assessment for faster results. This ensures your child gets diagnosed quickly while preserving options for publicly-funded services. Both public and private diagnoses qualify equally for OAP funding.
Autism assessment providers and wait times vary by region. Find resources in your area of Ontario.
Key Providers:
Private Cost:
$2,500-$4,000
Public Wait:
12-18 months
Key Providers:
Private Cost:
$2,500–$4,000
Public Wait:
18-24 months
Key Providers:
Private Cost:
$2,500–$4,000
Public Wait:
12-18 months
Key Providers:
Private Cost:
$2,500–$4,000
Public Wait:
12-18 months
Key Providers:
Private Cost:
$2,500–$4,000
Public Wait:
18-30 months
Search the College of Psychologists and Behaviour Analysts of Ontario register for qualified psychologists and psychological associates in your area.
Search Provider Directory (opens in new tab)Only qualified professionals can provide an official autism diagnosis for OAP eligibility.
Hold doctoral degrees (Ph.D.) and registered with College of Psychologists of Ontario
Hold master's degrees, work under supervised practice, registered with CPO
Medical doctors specializing in child development and neurodevelopmental disorders
Medical doctors with specific autism expertise and training
Medical doctors specializing in mental health, can diagnose autism
Medical doctors specializing brain and nervous system conditions
Can refer for assessment but typically cannot provide formal diagnosis
Can assess communication but cannot formally diagnose autism
Understanding the assessment process can help you and your child feel more prepared.
You'll meet with the assessor to discuss your child's developmental history, current concerns, and family history. Be prepared with specific examples of behaviors, developmental milestones, and concerns from school or daycare.
The assessor will observe your child during structured and unstructured play activities. They're looking for social communication skills, repetitive behaviors, play patterns, and how your child interacts with others.
The Autism Diagnostic Observation Schedule (ADOS-2) is the gold standard assessment tool. It involves structured activities designed to elicit behaviors associated with autism.
The Autism Diagnostic Interview-Revised is a comprehensive interview covering your child's early development, language, social behaviors, and repetitive interests.
Your child may complete cognitive tests to assess IQ, language skills, motor skills, and adaptive functioning. This helps understand your child's strengths and challenges.
The assessor will review findings with you, explain the diagnosis, provide recommendations, and give you a written report. This is your opportunity to ask questions.
Common questions about autism diagnosis in Ontario.
OAP registration and funding figures are grounded in FOI and government reporting available as of May 13, 2026. Assessment fees and appointment waits vary by provider and region, so use the ranges above for planning and confirm them directly.
Next Steps
Ontario families assembled this evidence from the government’s own records. Put it to work.
How many children are on the Ontario autism waitlist in 2026?
As of May 13, 2026, 91,974 children are registered with the Ontario Autism Program. However, only 20,711 (22.5%) have an active Core Funding Agreement. This represents ~300% growth in registrations since 2019, with 71,263 children still waiting for essential funding.
Source: MCCSS FOI via OAC · May 2026 · Open source record
Is the Ontario Autism Program underfunded?
The 2026-27 Ontario Budget allocated $965 million for autism services, up from $779 million in 2025-26, while 91,974 children are registered. The budget record supports the current allocation; the historical FAO funding model is cited separately.
Source: 2026-27 Ontario Budget · Open source record
Sources on this page
Key claims are paired with their source, evidence tier, and verification date so readers can inspect the public record directly.
Evidence supports autism screening and intervention commencing in the first 2 years of life — earlier identification directly enables earlier intervention during the highest neural plasticity window
1 in 50
According to the 2019 Canadian Health Survey on Children and Youth, about 1 in 50 children and youth aged 1 to 17 in Canada had an autism diagnosis
WHO recommends accessible, community-based early interventions for children with autism. Timely evidence-based psychosocial interventions improve communication and social engagement
See authorship, freshness, trust signals, and ways to stay current.