Ontario residents will face several important rule changes, deadlines, and program updates in June 2026, affecting families, self-employed workers, tenants, pharmacies, employers, contractors, and regulated professionals across the province.
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The month brings a combination of provincial policies, municipal bylaws, federal payment updates, and regulatory deadlines that Ontarians should be aware of before the end of June.
Here’s a breakdown of the key Ontario laws, rules, and deadlines taking effect in June 2026.
1. Ontario Day Will Still Be a Regular School Day
June 1, 2026 marks Ontario Day in schools, but students and staff will still attend classes as usual.
The provincial school calendar confirms that Ontario Day is not a PA Day, statutory holiday, or exam day. Schools are encouraged to organize activities focused on Ontario’s history, geography, culture, and civic contributions, but normal attendance rules remain in place.
Parents should note that students are expected to be in school on June 1.
2. Buy Ontario Procurement Rules Expand Further
Beginning June 1, 2026, Ontario’s Buy Ontario procurement rules will apply to additional municipal organizations, including local boards and municipal service corporations.
The directive, introduced under the Buy Ontario Act, requires public sector organizations to prioritize Ontario and Canadian suppliers when issuing procurements.
The latest phase expands the framework beyond municipalities to include school boards, hospitals, municipal corporations, and other prescribed public entities.
Businesses bidding on public contracts should review the updated procurement requirements, including domestic content and supplier eligibility rules.
3. Ontario Naloxone Pharmacy Program Rules Updated
Ontario is updating administrative and claim procedures under the Ontario Naloxone Program for Pharmacies effective June 1.
The program will continue providing free naloxone kits through participating pharmacies, but pharmacies must follow revised claim submission and documentation procedures.
Pharmacists and pharmacy operators are advised to review updated provincial guidance to ensure compliance with the new requirements.
4. Publicly Funded PCR Testing at Pharmacies Ends
Ontario will officially end publicly funded COVID-19 PCR testing through pharmacies on June 1, 2026.
Participating pharmacies will no longer collect specimens or bill the Ministry of Health for PCR testing services.
Testing may still remain available in hospitals, assessment centres, and select clinical settings depending on medical need. Rapid antigen testing programs are not part of this change.
Residents who previously relied on pharmacy PCR testing should check updated provincial guidance for alternative testing locations.
5. CRA One-Time GST/HST Credit Top-Up Arrives June 5
Eligible Canadians, including Ontario residents, will begin receiving a one-time GST/HST credit top-up payment starting June 5, 2026.
The Canada Revenue Agency says the payment equals 50% of a recipient’s annual GST/HST credit entitlement for the July 2025 to June 2026 benefit year.
Eligible individuals could receive up to $267, while families may receive up to $533.
The payment will be issued automatically and serves as part of the transition toward the new Canada Groceries and Essentials Benefit launching in July 2026.
6. Temporary Drug Controls Take Effect
Health Canada will introduce temporary controls on three high-risk substances beginning June 5, 2026.
The controlled substances include synthetic opioids spirobrorphine and spirochlorphine, along with precursor chemical R-29676.
The temporary restrictions will remain in place for one year under the Controlled Drugs and Substances Act.
Businesses, laboratories, and researchers working with these substances must obtain authorization from Health Canada before the deadline.
7. Self-Employed Tax Filing Deadline Approaches
June 15, 2026 is the filing deadline for self-employed individuals and anyone whose spouse or common-law partner was self-employed in 2025.
Although taxes owed were due April 30, self-employed taxpayers have until June 15 to submit their 2025 returns.
This deadline applies to freelancers, contractors, gig workers, consultants, sole proprietors, and many small business owners.
Interest continues to accumulate on unpaid balances, making timely filing especially important.
8. JHSC Training Standards Deadline Nears
Current Joint Health and Safety Committee certification training standards remain valid only until June 30, 2026.
New standards take effect July 1 and introduce additional training content related to workplace violence, occupational illness, harassment, dangerous circumstances, and mental health.
Employers with 20 or more workers must ensure their JHSC certification programs comply before the transition date.
9. Behaviour Analyst Transitional Registration Ends
Ontario’s transitional registration pathways for behaviour analysts will permanently close at 11:59 p.m. on June 30, 2026.
The deadline affects applicants registering through temporary transitional routes overseen by the College of Psychologists and Behaviour Analysts of Ontario.
After June 30, new applicants will need to follow the regular entry-level registration process, which includes additional supervision and examination requirements.
The change is especially important because the Behaviour Analyst Certification Board will also stop certifying Ontario residents after the same date.
10. Toronto Cooling Space Rule Begins
Starting June 1, apartment buildings enrolled in Toronto’s RentSafeTO program must provide cooled indoor amenity spaces if units do not have air conditioning.
The cooled spaces must remain at or below 26°C between June 1 and September 30.
The rule applies only to qualifying Toronto apartment buildings and does not require landlords to install air conditioning in every unit or construct new amenity spaces.
Landlords must also post operating hours and information about nearby public cooling spaces where applicable.
11. Ontario Drivers Prepare for July Auto Insurance Changes
Ontario’s major auto insurance reforms officially begin July 1, 2026, but June serves as the final preparation period for drivers and insurers.
Under the upcoming system, some accident benefits coverage will become optional while core medical and rehabilitation benefits remain mandatory.
Drivers are encouraged to review their policies, renewal notices, and coverage options before the changes take effect.
Summary of Key Ontario Changes in June 2026
| Date | Change | Affected Groups |
|---|---|---|
| June 1 | Buy Ontario procurement expansion | Municipal bodies, contractors |
| June 1 | Pharmacy PCR testing ends | Patients, pharmacies |
| June 1 | Naloxone pharmacy rules updated | Pharmacies, residents |
| June 1 | Ontario Day remains instructional | Students, parents |
| June 1 | Toronto cooling rule begins | Tenants, landlords |
| June 5 | CRA GST/HST top-up payments start | Eligible residents |
| June 5 | Temporary drug controls begin | Health sector, researchers |
| June 15 | Self-employed tax filing deadline | Self-employed workers |
| June 30 | JHSC training standards deadline | Employers, workers |
| June 30 | Behaviour analyst transitional routes close | ABA professionals |
Why These Changes Matter
While June 2026 does not feature a single major Ontario law overhaul, the combined impact of these updates affects several parts of daily life.
Families should pay attention to school schedules and upcoming CRA benefit payments. Self-employed workers should prepare for tax deadlines, while tenants in Toronto should understand new cooling space requirements.
Businesses, procurement teams, employers, and regulated professionals should also review compliance obligations before month-end to avoid issues later in the year.
Frequently Asked Questions
Is Ontario Day a holiday in schools?
No. Ontario Day on June 1, 2026 remains a regular instructional day, and students are expected to attend classes.
Does the Toronto cooling rule apply across Ontario?
No. The cooled amenity space requirement applies only to apartment buildings participating in Toronto’s RentSafeTO program.
Is the June 5 CRA payment only for Ontario residents?
No. The one-time GST/HST top-up is a federal CRA payment available to eligible residents across Canada.
Are Ontario auto insurance changes starting in June?
No. The major auto insurance reforms begin July 1, 2026, but June is the final preparation period before the new framework takes effect.
Disclaimer: This content is for informational purposes only and should not be considered legal, financial, tax, health, housing, or professional advice. Residents should verify details through official government and regulatory sources before making decisions.
