Can I Be a Partner in a Business Without a Formal or Written Agreement?

The simple answer is yes. A written partnership agreement is helpful and is the best way to avoid confusion, but it is not always required for a partnership to exist. In Illinois, a court can find that people were partners even when they never signed a document called a “partnership agreement.”

That can come as a surprise when a business relationship starts casually — friends test an idea, relatives help with an operation, or one person contributes time and connections while another contributes money.

When the parties have not entered into a written agreement defining the partnership, the court will look beyond labels. The court will review the parties’ intent, as well as the facts and circumstances surrounding the alleged formation of the partnership. Snyder v. Dunn, 265 Ill. App. 3d 891, 893 (1st Dist. 1994). The burden of establishing the existence of a partnership is on the person who asserts it. Id.

Whether the facts support a partnership is typically a fact-intensive inquiry, and the court weighs the evidence on a case-by-case basis. McCorkle v. Tyler Reporting Co., 159 Ill. App. 3d 62, 68 (1st Dist. 1987).

In other words, there is no single magic document or email that decides the issue. Likewise, although the parties may have called themselves partners, they may not actually be partners. A court will try to infer the parties’ intent from their conduct.

What Does the Court Look At?

The basic question is whether the parties joined together to carry on a trade or business for their common benefit, with each person contributing property, money, or services and having a community of interest in the profits.

The court considers a variety of factors, including how the parties dealt with each other, how each party, with the knowledge of the other, dealt with third parties, and whether a firm name was used. Rizzo v. Rizzo, 3 Ill. 2d 291, 299-300 (1954).

That last point can be important. Suppose someone is telling customers, vendors, lenders, or employees that you are “my partner” or “one of the owners,” and you know it is happening. If you remain silent, that silence may become evidence that you accepted or allowed the representation. It may not prove a partnership by itself, but it can become part of the overall picture a court considers.

The Illinois jury instructions also explain the idea in practical terms:

50.15 Partnership — Definition
One of the issues in this case is whether [1st partner’s name] and [2d partner’s name] were partners. Persons who join together or agree to join together in a business or venture for their common benefit, each contributing property, money, or services to the business or venture and having a community of interest in any profits, are partners.

Why Profit Sharing Matters

Profit sharing is often one of the most important elements of a partnership. If someone receives a share of profits, Illinois law presumes that the person is a partner unless the profits were received for one of several excluded reasons.

At the same time, profit sharing is not conclusive, and it is not necessary that the alleged partners also agreed to share losses.

Illinois law and the Uniform Partnership Act address this issue as follows:

805 ILCS 206/202(c)(3)
A person who receives a share of the profits of a business is presumed to be a partner in the business, unless the profits were received in payment:

(i) of a debt by installments or otherwise;
(ii) for services as an independent contractor or of wages or other compensation to an employee;
(iii) of rent;
(iv) of an annuity or other retirement or health benefit to a beneficiary, representative, or designee of a deceased or retired partner;
(v) of interest or other charge on a loan, even if the amount of payment varies with the profits of the business, including a direct or indirect present or future ownership of the collateral, or rights to income, proceeds, or increase in value derived from the collateral; or
(vi) for the sale of the goodwill of a business or other property by installments or otherwise.

The key takeaway is that “profits” can mean different things in different business relationships.

A person may be paid based on revenue, commissions, rent, loan payments, or the purchase price for a business without becoming a partner. For example, a salesperson paid a commission is not automatically a partner. A landlord who receives rent tied to business performance is not automatically a partner. A lender whose interest payment varies with profits is not automatically a partner.

The reason for the payment matters.

On the other hand, if the parties are jointly making decisions, contributing money or services, treating net profits as something they own together, and presenting themselves as co-owners, the facts may point toward a partnership even without a written agreement.

Why This Matters in Real Life

If you are in a business relationship and you have not formalized the relationship in writing, a court may still find that you are a partner.

That finding can have practical consequences. It may affect who is entitled to profits, who has authority to act for the business, who may be responsible for partnership obligations, and whether a person’s outside activities conflict with the partnership’s interests.

In a dispute, the absence of a written agreement can make everything harder because the parties are left arguing over memories, emails, payments, text messages, tax filings, website language, and how they described the relationship to others.

This is why informal business arrangements can become expensive disputes. People often begin with trust and good intentions. Problems arise later — after the business starts making money, after one person believes they contributed more than the other, or after a third party tries to hold someone responsible for a business obligation.

What Should You Do Before You Start?

Before you enter into a business relationship, document the relationship accurately.

If you intend to form a partnership, the agreement should address ownership percentages, capital contributions, duties, compensation, authority to sign contracts, banking, taxes, profit distributions, losses, records, exits, and dispute resolution.

If you do not intend to form a partnership, your documents should say that too.

A written agreement can clarify whether someone is an employee, independent contractor, lender, investor, landlord, consultant, or vendor instead of a partner.

If you are already in an informal arrangement, you should not ignore the issue. Look at how the business is described on contracts, invoices, websites, emails, social media, bank documents, and tax filings.

Pay attention to whether anyone uses the word “partner” or “owner,” and whether payments are described as wages, commissions, rent, loan payments, distributions, or profit shares.

The more clearly the parties document their actual relationship, the less room there is for a later dispute.

The lawyers at King & Jones have litigated disputes involving partnerships, joint ventures, and closely held corporate disputes for decades.

If you have a question about whether you are a partner in a business, or whether someone is claiming to be a partner in your business, contact the firm to help determine your rights and options.