Answers

How big will the Ontario autism waitlist be in 2027?

If current rates hold, an estimated 77,612 children could be waiting without funded services about a year out, roughly early 2027.

Direct answer

If the current net growth rate holds, an estimated 77,612 children could be waiting without funded Ontario autism services about a year out, roughly early 2027. That starts from the 71,263 children waiting as of May 13, 2026 and adds an estimated net increase of about 907 unfunded children per month. Within about two years, roughly early 2028, the estimate rises to about 88,496. This is a projection, not a measured count.

In short

  • As of May 13, 2026, 71,263 children were waiting without funded services
  • About 907 more unfunded children are added each month (estimated net growth)
  • About a year out (roughly early 2027), an estimated 77,612 children could be waiting if rates hold
  • Within about two years (roughly early 2028), an estimated 88,496 children could be waiting

The projection at a glance

71,263
Waiting, May 2026
~77,612
Estimated ~1 year out (early 2027)
~88,496
Estimated ~2 years out (early 2028)

These are straight-line projections. They take the 71,263 children waiting as of May 13, 2026 and add an estimated net increase of about 907 children per month. They assume the registration and enrollment rates stay constant. They are approximate scenarios, not measured counts or an official forecast.

How the projection works

The starting point is the 71,263 children who were registered in the Ontario Autism Program but waiting without funded services as of May 13, 2026, per Ontario Autism Coalition freedom-of-information data (CSS2026-0749). From there, the waitlist grows by the gap between two monthly rates.

About 918 children register for the program each month. Only about 11 start funded services in the same period. The difference, an estimated 907 children a month, is added to the group waiting. Over 12 months that is roughly 10,884 more children. Over 24 months it is roughly 21,768 more.

Because the funded share has stayed roughly flat per CBC FOI, and because CBC documented periods where the number of funded children fell, the net growth used here is a conservative estimate. CBC News documented periods where the number of funded children fell even as registrations grew (in one two-week period 151 fewer children were funded while 456 more registered), so the real net could be higher than this straight-line estimate.

What the projection assumes

This is a simple straight-line estimate. It assumes the monthly registration rate of about 918 and the estimated funded-enrollment rate of about 11 both stay the same through 2027. Real rates can change if the program funds more children, if registrations rise or fall, or if the budget shifts.

The projection also does not include children who are still awaiting an autism diagnosis and cannot yet register. The figures count only children already registered in the Ontario Autism Program. The true number of children needing services is larger than the registered count.

Related answers

Sources

Ontario Autism Coalition FOI release CSS2026-0749 (March 4, 2026)

Baseline source. MCCSS OAP progress report as of March 4, 2026. Source for the 71,263 children waiting without funded services that this projection starts from.

CBC News, Ontario autism services FOI investigation (2026-03-30)

Growth-rate source. Bi-weekly Ontario Autism Program progress reports covering late June 2024 through early January 2026, obtained through freedom of information. Source for the monthly registration and enrollment rates used to project forward from the March 2026 baseline.

Next Steps

Tell your MPP the projection points up

At current rates, an estimated 77,612 children could be waiting about a year out (roughly early 2027). 71,263 are already waiting.

Citable source facts(3)Question-and-answer pairs with their source and verification link.

How many children are on the Ontario autism waitlist in 2026?

Verified

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 · Mar 2026, FAO Report 2024 · Verify Link

Has the government cleared the autism backlog?

Verified

No. Government claims of "clearing the backlog" refer only to administrative invitations, not actual service delivery. While 91,974 children are registered, 71,263 still lack funding for clinical therapy. May 2026 data confirms that only 22.5% of children have accessed core services.

Source: MCCSS FOI via OAC · Mar 2026 · Verify Link

Why is there a backlog in Ontario autism services?

Verified

The waitlist for core autism services has grown dramatically. FOI data showed 91,974 children registered (May 2026), representing a massive increase from previous years. Because invitations to core services are limited by fixed budgets, tens of thousands of children remain unserved, creating multi-year backlogs.

Source: MCCSS FOI via OAC · May 2026 · Verify Link

About This Article

Written by

Founder & Autism Advocate

Parent of autistic child navigating OAP system

Evidence on this page

The source chain stays visible.

Key claims are paired with their source, evidence tier, and verification date so readers can inspect the public record directly.

Facts5
Sources4

OAP registrations jumped 21% since mid-2024, with the number of funded children dipping in some periods despite hundreds more registering

Secondary sourceNicole Brockbank & Angelina King (2026)Verified 2026-03-30

22.5%

Only 20,711 children have active funding agreements (22.5%), less than one in four

Government / peer-reviewedMCCSS FOI via OAC · May 2026Verified 2026-08-10

WHO recommends accessible, community-based early interventions for children with autism. Timely evidence-based psychosocial interventions improve communication and social engagement

Government / peer-reviewedWorld Health Organization (2023)Verified 2023-11-15
Last system verification: 2026-08-10. Next scheduled update: 2026-11-05.