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Business & CorporateMay 16, 2026

Your business might need a Partnership Agreement in Ontario

If two or more people are running a business together to make money, they may already be in a partnership, even if they never signed a formal agreement.

Your business might need a Partnership Agreement in Ontario

Starting a business with another person can feel simple at the beginning. You may trust each other, agree on the idea, and feel excited about making money together. But once real work, expenses, customers, profits, losses, and disagreements enter the picture, things can become more complicated. A partnership agreement helps set clear rules before problems happen.

In Ontario, partnerships are governed by the Partnerships Act, R.S.O. 1990, c. P.5. The Act says that a partnership is the relationship between people carrying on a business in common with a view to profit. In simpler words, if two or more people are running a business together to make money, they may already be in a partnership, even if they never signed a formal agreement.

That is one reason a written partnership agreement can be so important. Some people think they do not have a “real” partnership unless they register something or sign a long legal document. But under Ontario law, a partnership can exist because of what people actually do together. If you are sharing work, money, customers, responsibilities, and profits, you may have created legal obligations without fully realizing it.

A partnership agreement is a written contract between the partners. It explains how the business will operate, how decisions will be made, how money will be handled, and what happens if someone wants to leave. In plain English, it is the rulebook for the business relationship.

One of the most important things a partnership agreement can deal with is ownership. The agreement can explain each partner’s share of the business. For example, two partners may each own 50%, or one partner may own 70% while the other owns 30%. This matters because ownership can affect profits, control, responsibilities, and what each person receives if the business ends.

A partnership agreement can also explain how profits and losses are shared. Without clear written terms, partners may disagree about who should receive what. One person may think profits should be split equally. Another may think profits should be based on how much money, labour, equipment, or client relationships each person contributed. A written agreement can help avoid that confusion.

Decision-making is another major issue. At the beginning, partners may assume they will simply talk things out. But what happens if they disagree about hiring staff, signing a lease, borrowing money, changing prices, taking on a major client, buying equipment, or expanding the business? A partnership agreement can set out which decisions require unanimous consent, which decisions can be made by majority vote, and which decisions can be handled by one managing partner.

A partnership agreement can also deal with each partner’s duties. This is important because partnerships often break down when one person feels they are doing more work than the other. The agreement can explain who is responsible for operations, sales, finances, customer service, bookkeeping, marketing, management, or other parts of the business. It can also explain whether partners are expected to work full-time, part-time, or only contribute money.

The Ontario Partnerships Act also contains default rules about how partners relate to each other, including rules about partner authority and responsibilities. However, relying only on default legal rules can be risky because those rules may not match what the partners actually wanted. A written agreement lets the partners create clearer, more customized rules for their own business.

Another important topic is liability. In a general partnership, partners can face serious personal risk because the business is not the same as a corporation with limited liability. Depending on the situation, a partner may be responsible for partnership debts or obligations. That is why it is important to understand the risks before entering into a partnership, especially if the business will borrow money, sign leases, hire employees, or deal with customers and suppliers.

A partnership agreement can also explain how new partners can join the business. For example, the agreement can say whether all existing partners must approve a new partner, how the new partner’s ownership share will be calculated, and whether the new partner must contribute money, assets, labour, or clients.

The agreement should also explain what happens if a partner wants to leave. This can be one of the most important parts of the document. If a partner walks away, does the business continue? Does the leaving partner get bought out? How is their share valued? How long does payment take? Can the remaining partners keep using the business name, customers, website, phone number, and other assets? These questions are much easier to answer before there is a fight.

A partnership agreement can also deal with death, disability, bankruptcy, or serious illness. These situations are uncomfortable to think about, but they can create major problems. If one partner dies, does their interest go to their estate? Can their spouse or family become involved in the business? Do the remaining partners have the right or obligation to buy out the deceased partner’s interest? A proper agreement can help avoid uncertainty during an already difficult time.

Another useful part of a partnership agreement is a dispute resolution process. Business partners may disagree, even if they are reasonable people. The agreement can set out steps for resolving disputes, such as negotiation, mediation, arbitration, or court. It can also deal with what happens if the partners are deadlocked and cannot move forward.

Confidentiality and non-solicitation terms may also be important. Partners often learn sensitive information about customers, pricing, suppliers, marketing strategies, business plans, and internal systems. A partnership agreement can say that partners must protect confidential information and cannot misuse it if they leave the business.

A partnership agreement is not only for large businesses. In fact, small businesses may need one even more because the owners are often personally involved in every part of the business. When there is no clear separation between friendship, family, work, money, and decision-making, written rules can help protect both the business and the relationship.

It is also important to understand that a partnership agreement is different from incorporating a company. A partnership is one way to run a business. A corporation is another. Each structure has different legal, tax, and liability consequences. Before choosing a structure, it may be wise to speak with a lawyer and an accountant.

Flatly.ca offers Partnership Agreement drafting in Ontario for people who want clear written rules before starting or continuing a business partnership. A properly drafted agreement can help deal with ownership, profits, responsibilities, decision-making, exits, disputes, confidentiality, and other important issues.

A partnership agreement is not about expecting the relationship to fail. It is about being practical. When people are putting time, money, and trust into a business together, they should understand the rules. A clear agreement can reduce confusion, prevent avoidable disputes, and help the partners focus on building the business instead of arguing about what they thought the deal was.

Legal Disclaimer

This article is for general information purposes only and does not constitute legal advice. It does not create a lawyer-client relationship. Laws and procedures may change. For advice specific to your situation, consult a licensed Ontario lawyer.

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