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Find a Lawyer » Canada Legal Guides » Ontario Legal Guides » Business & Commercial Law Ontario » Business Formation & Contracts Ontario » What Are the Legal Requirements to Register a Partnership in Ontario?

What Are the Legal Requirements to Register a Partnership in Ontario?

27 Mar 2026 4 min read No comments Business Formation & Contracts Ontario
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To legally register a General Partnership in Ontario, you must register the business name through the Ontario Business Registry (costing $60 CAD). Most importantly, you should have a formal Partnership Agreement drafted by a lawyer to outline profit sharing and protect against joint liability.

Going into business with a trusted colleague or friend can be an excellent way to combine resources, skills, and capital. In Ontario, a General Partnership is one of the easiest and most common business structures to set up. However, its simplicity is exactly what makes it legally dangerous if you are not properly prepared. Under the provincial Partnerships Act, business partners share unlimited liability, meaning you are completely financially responsible for the actions, debts, and mistakes of your partner.

Many eager entrepreneurs in Ontario simply register a name online and start selling, relying only on a “handshake deal” to govern their partnership. ❗ When disputes arise over money, workloads, or the desire to sell the business, the lack of a formal legal structure often leads to bitter, expensive lawsuits. Understanding the legal requirements of starting a partnership is the best way to protect your personal assets.

Step-by-Step Process in Ontario

Whether you are opening a restaurant in Toronto, a consulting firm in Ottawa, or a landscaping business in Mississauga, the legal requirements for partnerships are standardized across the province. Protecting yourself requires both government registration and private legal contracts.

Step 1: Choose and Search a Partnership Name

If you and your partner are operating under any name other than your exact legal names (e.g., “Smith & Jones Construction”), you must register it. 🔍 Before doing so, use the Ontario Business Registry (OBR) to ensure no other local business is already using that exact name, to avoid trademark infringement.

Step 2: Draft a Formal Partnership Agreement

This is the most critical step, though it is not technically required by the government. Before taking any money, hire a local Ontario business lawyer to draft a Partnership Agreement. This legal document explicitly dictates how profits are split, how decisions are made, what happens if one partner dies, and how a partner can be bought out.

Step 3: Register the Business Name (BNR)

Once your agreement is signed, log into the Ontario Business Registry online portal. 💻 You must officially register the partnership by submitting a Business Name Registration (BNR). The system will ask for the names and addresses of all the active partners involved in the business.

Step 4: Register with the Canada Revenue Agency (CRA)

Your partnership needs its own identity with the federal government. You must apply for a 9-digit Business Number (BN) from the CRA. Depending on your revenue, you will also need to open an HST account, and if you plan to hire employees, a payroll deduction account.

How Much Does it Cost in Ontario?

Setting up the basic government registration is inexpensive, but investing in proper legal contracts upfront will save you thousands of dollars in the future. 💰 Here is a look at the costs in Canadian dollars:

  • Business Name Registration: The provincial fee to register a partnership through the OBR is $60 CAD. This is valid for five years.
  • Name Search: An optional but recommended enhanced NUANS search costs roughly $13.80 CAD.
  • Lawyer Fees (Partnership Agreement): Having an experienced Ontario law firm draft a custom Partnership Agreement generally costs between $1,000 and $3,000+ CAD, depending on the complexity of the business and the number of partners.
  • Accounting Fees: Setting up the initial corporate tax structure and registering for CRA accounts usually costs $300 to $600 CAD.
FeatureNo Partnership AgreementDrafted Partnership Agreement
Profit SplitProfits are split exactly 50/50 by default under the Act.Can be customized (e.g., 70/30 based on capital invested).
Dispute ResolutionOften results in costly litigation or forced dissolution.Includes mandatory mediation or structured buyout clauses.
Death of a PartnerThe partnership may automatically dissolve by law.Allows the surviving partner to buy out the deceased’s shares.

How Long Does the Process Take?

The government registration portion is incredibly fast. ⏱ If you file your Business Name Registration online, the partnership is legally registered in 15 to 30 minutes. However, negotiating and drafting a comprehensive Partnership Agreement with your lawyer and your partner can take anywhere from 2 to 4 weeks. It is highly recommended to delay launching operations until this agreement is signed.

Frequently Asked Questions (FAQ)

What happens if we don’t sign a Partnership Agreement?

If you do not have a written agreement, your business is automatically governed by the default rules of the Ontario Partnerships Act. This means profits and losses must be shared equally, regardless of who does the most work, which often leads to severe internal conflicts.

Am I liable for my partner’s business mistakes?

Yes. In a General Partnership, partners are “jointly and severally” liable. If your partner signs a terrible contract or gets sued for negligence while acting on behalf of the business, your personal assets (like your house or savings) can be seized to pay the debt.

Does a partnership pay its own income tax?

No. A partnership is not a separate taxable entity like a corporation. The business calculates its total net income, and that profit is “passed through” to the partners. You then report your specific share of the profits on your personal T1 tax return.

Can we just use a free template from the internet?

While you can, it is highly discouraged. Generic templates often fail to address specific Ontario provincial laws and rarely cover complex issues like disability, divorce of a partner, or intellectual property rights, leaving you exposed to legal risks.

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