If you run a nonprofit or charity in Ontario, you’ve probably heard of ONCA. But what exactly is it, and what does it mean for your organization?
In this blog post, we’ll explain:
ONCA stands for the Ontario Not-for-Profit Corporations Act, 2010, the law that governs most nonprofit organizations and charities incorporated in Ontario. You can read the full text of the Act on the Government of Ontario's e-Laws site.
ONCA came into effect on October 19, 2021. Before that, nonprofits in Ontario were governed by an outdated law from the 1950s. ONCA was created to modernize the rules, make things clearer, and give nonprofits more flexibility.
The goal of ONCA is to:
ONCA only applies to nonprofits and charities that are incorporated in Ontario.
If your organization is federally incorporated, then you’re governed by the Canada Not-for-Profit Corporations Act (CNCA) — not ONCA. This is true even if your head office is registered in Ontario or have extra-provincial registration in Ontario.
Most ONCA filings — including updating your Articles — are done through the province's Ontario Business Registry (OBR), an online portal launched to replace the old paper-based filing system.
To file through the OBR, your nonprofit needs a Company Key — a unique code tied to your organization. You can order one through the Ontario government's Company Key request page. It's mailed to your organization's registered address, so if you've moved and never filed a Notice of Change, the key may go to the wrong place.
If you've ordered a Company Key and it hasn't arrived:
If you're stuck navigating the OBR itself, ServiceOntario handles general filing support.
Understanding the ONCA timeline helps you see where your organization stands:
Where are you now? If you haven't updated your bylaws and Articles by October 18, 2024, your organization is currently non-compliant and should take immediate action.
ONCA isn't static. As of August 2026, the Ontario Nonprofit Network (ONN) — the sector's main advocacy body — submitted formal feedback as part of a new provincial consultation on ONCA and its regulations. This follows years of sector feedback about implementation issues, including problems with the Ontario Business Registry.
While the consultation hasn't yet produced legislative changes, it signals that ONCA's rules — and possibly the OBR filing process — may be refined in the near future. Ontario nonprofits should treat 2026 as a year to watch: organizations that are already behind on compliance have extra reason to act now, since any regulatory changes are more easily incorporated into governing documents that are already up to date, rather than documents that still need a full ONCA overhaul.
Here’s a simple breakdown of the differences:
Some nonprofits are considering moving from ONCA to CNCA if they operate across provinces or prefer the federal rules. This process is called “continuance.”
ONCA introduced several new rules that modernize nonprofit governance. If your organization is incorporated in Ontario, these changes apply to you:
These changes are designed to make nonprofit governance more efficient, transparent, and aligned with modern organizational practices.
Avoid these frequent errors that can put your organization at risk:
Prevention tip: Work with an Ontario charity lawyer experienced in ONCA to ensure your documents are compliant and customized to your organization's needs. If you want a starting template, Nonprofit Law Ontario offers a free bylaw builder tool — though we recommend legal review of anything before your board adopts it.
To become ONCA-compliant, your organization must complete these steps:
Gather your Letters Patent (or Articles of Incorporation), current bylaws, and any amendments. Identify what needs updating.
Your Articles must reflect ONCA's requirements — this is the legally required step. Common reasons for amendment include:
Even where not strictly mandatory, outdated bylaws that conflict with ONCA can create confusion and governance risk. Your bylaws should address:
View sample ONCA-compliant bylaws here.
Important: This process requires legal review to ensure compliance. We recommend working with an Ontario lawyer experienced in charity and nonprofit law, particularly ONCA legislation.
The compliance deadline for ONCA was October 18, 2024. If you haven't updated your documents yet, your organization is now legally non-compliant.
Non-compliance creates serious legal and operational problems:
Legal Risks:
Operational Consequences:
Reputational Damage:
While the deadline has passed, you can still become compliant. Organizations that act now can resolve their non-compliance and protect themselves from ongoing legal risks.
Our team of charity lawyers have helped hundreds of Ontario nonprofits and charities update their documents, stay compliant with ONCA and all relevant provincial and federal legislation, and where prudent, transition to federal incorporation.
Call us at: 416-488-5888
Email: ask@charitylawgroup.ca
Here are answers to common questions about ONCA and what it means for Ontario nonprofits and charities.
ONCA is the Not-for-Profit Corporations Act, 2010. It is the law that governs how nonprofit corporations operate in Ontario. ONCA replaced the old Corporations Act and brought new rules for nonprofits to follow.
ONCA updates and modernizes the rules for nonprofit organizations in Ontario. Its purpose is to make governance clearer, protect members' rights, and help nonprofits run more effectively. The law sets standards for how boards operate and how organizations make decisions.
ONCA brought several new rules. Organizations must update their bylaws and governing documents. Boards have clearer duties and responsibilities. Members have more rights, including better access to information. There are also new rules about meetings, voting, and financial transparency.
ONCA stands for the Ontario Not-for-Profit Corporations Act. The full name is the Not-for-Profit Corporations Act, 2010.
ONCA itself doesn't have a mission since it is a law, not an organization. However, the goal of ONCA is to create a modern legal framework for nonprofits. It aims to improve governance, increase transparency, and make it easier for nonprofit organizations to serve their communities effectively.
A Company Key is a unique code your nonprofit needs to file documents through Ontario's Business Registry, including ONCA compliance filings. You can request one through the Ontario government's online portal, and it's mailed to your organization's registered address. If your address on file is out of date, you'll need to correct it first.
Updating your Articles to comply with ONCA is legally required. Updating your bylaws is strongly recommended but not strictly mandatory — however, outdated bylaws that conflict with ONCA's default rules can create governance confusion and legal uncertainty.
As of August 2026, the Ontario Nonprofit Network submitted feedback as part of a provincial consultation on ONCA and its regulations. No legislative changes have been finalized yet, but nonprofits should watch for updates, particularly around the Ontario Business Registry.
The material provided on this website is for information purposes only.. You should not act or abstain from acting based upon such information without first consulting a Charity Lawyer. We do not warrant the accuracy or completeness of any information on this site. E-mail contact with anyone at B.I.G. Charity Law Group Professional Corporation is not intended to create, and receipt will not constitute, a solicitor-client relationship. Solicitor client relationship will only be created after we have reviewed your case or particulars, decided to accept your case and entered into a written retainer agreement or retainer letter with you.

DOV GOLDBERG, J.D. is a lawyer at B.I.G. Charity Law Group and has dedicated his career exclusively to Charity and Not-for-Profit Law for over a decade. Dov guides charities, foundations, and non-profit organizations through every stage of the registration process, offering practical legal advice with a focus on compliance, governance, and long-term success. Known for his hands-on approach and deep knowledge of CRA requirements, Dov is committed to helping clients build strong, sustainable, and legally sound organizations.