How to buy out a
business partner in Ontario
One owner wants to leave. The other wants to keep the business. Agreeing on a price is a start, but the deal also needs a workable payment structure, the right documents and a clear answer about the debts and guarantees left behind. Here is how to work through the buyout.
By Jonathan Kleiman, Barrister & Solicitor · Published September 2026
You built the business together. Now one of you wants to retire, take another opportunity or stop working with the other. Perhaps the separation is friendly. Perhaps you can barely agree on who approves payroll. Either way, a buyout needs to leave the continuing owner able to run the business and the departing owner clear about what they will receive and what obligations remain.
To buy out a business partner in Ontario, confirm the ownership and any existing exit rights, agree on the transaction structure and valuation, arrange financing and consents, then complete the purchase documents and closing steps. If the other owner will not sell, first establish whether there is an enforceable mechanism or another legal remedy available.
This guide focuses on the buyout itself. For the broader legal issues behind a breakdown, see shareholder disputes and the oppression remedy. For planning an eventual exit while the owners still get along, start with the shareholders’ agreement checklist.
This article is general information, not legal or tax advice. The right approach depends on your business structure, agreements and circumstances. Have your lawyer and accountant review the proposed structure before you commit to a price or payment arrangement.
Are you buying shares or a partnership interest?
Start with the legal structure, because people often call each other “partners” when they are actually shareholders of a corporation. Check the articles, share register, partnership agreement and financial records. Confirm who owns the interest: the individual, a holding company or someone else. Also identify any shareholder loans and personally owned assets used by the business.
| Structure | What the deal involves | What to check first |
|---|---|---|
| You buy the other owner’s shares | The shares transfer to you or an acquisition company. | Share rights, transfer restrictions, price, financing and consents. |
| The corporation buys its own shares | The corporation pays the departing shareholder under a purchase or permitted redemption. | Corporate authority, solvency restrictions, funding and tax treatment. |
| You buy a partnership interest | The agreement settles the departing partner’s interest and how the business continues. | Partnership terms, capital accounts, assets, creditor exposure and any dissolution steps. |
Buying shares does not transfer the corporation’s assets into your personal name. The corporation continues to own its business and owe its liabilities. A partnership exit needs its own treatment: if only one person remains from a two-person partnership, plan how that person will carry on the business and hold its assets. Do not simply reuse a share purchase agreement.
The Ontario Partnerships Act, section 2 distinguishes a partnership from the relationship between members of an incorporated company. My guide to partnership agreements in Ontario explains the partnership framework in more detail.
What does your existing agreement say about a buyout?
Read the exit provisions before making an offer or sending a notice. The agreement may already determine who can start a buyout, what event triggers it, how the price is calculated and how quickly the other owner must respond. The articles and any amendments or side agreements matter too.
- Buy-sell rights: retirement, death, disability, default or other agreed triggers.
- Put or call options: rights to require a purchase or sale on specified terms.
- Shotgun clauses: a process under which the recipient may have to choose between buying and selling.
- Transfer restrictions: required approvals, rights of first refusal and any restrictions on the proposed buyer.
- Valuation and payment: the valuation date, formula, expert appointment procedure and instalment terms.
- Notice and dispute procedures: delivery requirements, election deadlines, mediation and arbitration.
A right of first refusal is usually an opportunity to match a qualifying proposed sale; it is not automatically a right to make someone sell. A shotgun clause is also not interchangeable with a friendly offer. If you invoke it, you may end up selling your own shares. Check the exact wording and your ability to finance either outcome before using it.
Owners with unequal access to money may face very different choices under the same shotgun clause. Do not assume the mechanism guarantees a fair price. A review of your shareholders’ agreement should identify the practical consequences as well as the formal steps.
What if there is no agreement, or your partner refuses to sell?
You can negotiate a voluntary buyout without a written exit agreement. Compelling an unwilling owner to sell requires a legal basis. An ownership percentage, a falling-out or an offer you consider generous does not create a general right to take someone else’s shares.
Start by proposing a process: exchange the necessary financial information, agree on a valuator or valuation method, explore financing and use mediation if direct discussions are going nowhere. If there is no agreed exit, a lawyer should assess the documents, conduct and remedies before either side threatens proceedings.
For an Ontario corporation, section 248 of the Business Corporations Act permits remedies for oppression, including a court-directed purchase of shares. A federal corporation has a corresponding remedy under section 241 of the Canada Business Corporations Act. A buyout is a possible remedy, not an automatic result.
In BCE Inc. v. 1976 Debentureholders, 2008 SCC 69, paragraph 68, the Supreme Court described two inquiries: whether the evidence supports the asserted reasonable expectation, and whether conduct violating it amounts to oppression, unfair prejudice or unfair disregard. Simply wanting to leave does not establish that test.
Partnerships have different rules. Section 25 of the Partnerships Act requires an express agreement conferring an expulsion power. Section 26 and section 32 address ending a partnership of no fixed duration by notice, subject to the applicable agreement. Dissolution is not the same as a right to buy the other partner’s interest at a price you choose; the assets, accounts and debts still need to be dealt with.
While discussions continue, preserve records and keep business decisions properly authorized. Changing passwords, diverting customers or using company money to pressure the other owner can turn an exit negotiation into a much larger shareholder dispute.
Considering a partner buyout?
Bring your agreement, ownership records and proposed terms to a free 30-minute consultation.
How do you value your partner’s interest?
Agree on what is being valued, as of what date, before arguing about the number. A multiple applied to the operating business is not necessarily the amount available to the shareholders. Debt, surplus cash, working capital, share rights and shareholder loans can all change the calculation.
The existing agreement may prescribe the method. Otherwise, work out whether to obtain a jointly instructed Chartered Business Valuator’s report, separate advice or an agreed formula. Specify the financial information to be supplied and whether the valuation will be binding. Your accountant can help reconcile the books; a valuation specialist addresses the value of the interest.
Review normalized earnings, owner compensation, customer concentration, outstanding claims and how much revenue depends on the departing owner’s relationships. Also settle whether any discount or premium applies. A minority discount is not an automatic deduction in every buyout, and a court-ordered transaction may involve different assumptions from a voluntary sale. The business valuation guide explains those distinctions.
A simplified example: assume an agreed enterprise value of $1 million that excludes surplus cash. The parties agree to deduct $200,000 of bank debt and add $100,000 of cash that is surplus to the business’s operating needs. On those assumptions, equity value is $900,000. Half is $450,000 if the owners have identical rights and agree that no other adjustments apply. Define the cash, debt and working-capital adjustments and their measurement date in the agreement. This example assumes there are no shareholder loans. If there are, decide how they affect equity value and what is paid or assigned separately, so they are not counted twice.
Put the resulting calculation in the purchase agreement or a clear schedule. Identify any adjustment between signing and closing and who resolves a disagreement about the closing accounts. “Half the business value” leaves too much open.
Should you buy the shares, or should the corporation buy them?
The identity of the buyer affects funding, tax and the documents. You might buy the shares personally or through a corporation. Alternatively, the operating company might purchase its own shares or redeem shares that are redeemable under its articles. These routes can produce different results even if the seller receives the same headline amount.
For an Ontario corporation, sections 30–32 of the Business Corporations Act address purchases and redemptions of its own shares, including payment restrictions. The articles, required approvals and applicable solvency tests must be reviewed. Cash in the bank is not, by itself, permission to use it for a shareholder’s exit. Federal corporations require review under their own governing statute.
Tax also changes with the structure. The CRA’s guidance on deemed dividends explains that a corporation’s acquisition or redemption of its own shares can produce a dividend based on the amount paid over the paid-up capital of the shares acquired. Do not assume that every payment described as a “share buyout” receives capital-gains treatment.
Ask your accountant to compare after-tax proceeds, the buyer’s funding route and any special rules affecting the proposed parties. The lifetime capital gains exemption has its own eligibility requirements; co-ownership alone does not establish qualification. Settle the structure before signing a binding price commitment. Even a letter of intent or term sheet needs care about which terms are binding and what conditions remain.
How can you finance the buyout?
The payment plan has to work for the business after the departing owner is gone. Test the debt payments against realistic cash flow, including replacement staff, working capital, taxes and the loss of any customers who may follow that owner.
Common negotiated arrangements include cash on closing, bank financing, a seller-financed balance or a combination. If the seller takes instalments, identify who owes the money and negotiate interest, repayment dates, security, guarantees and default remedies. Existing lender restrictions may limit both payments and enforcement. My guide to vendor take-back financing works through those issues.
Distinguish a fixed deferred balance from an earn-out tied to future performance. If payment depends on profits after the buyer takes control, define the accounting rules, permitted owner compensation, reporting access and dispute procedure. Otherwise, the disagreement about price may simply move to the first earn-out statement.
What happens to loans, guarantees and the commercial lease?
Selling shares does not automatically release the seller from a personal guarantee. List the bank facilities, premises lease, equipment leases, credit arrangements and other obligations carrying either owner’s personal signature.
Obtain the creditor’s written release where required. If release depends on refinancing, replacement security or a new guarantee, make that part of the closing plan. An indemnity from the buyer may provide a reimbursement claim, but it does not itself prevent a bank or landlord from enforcing against the departing guarantor. The personal guarantees guide explains why that distinction matters.
Review change-of-control provisions even if the corporation remains the tenant or borrower. The particular contract may require consent when ownership changes. Partnership exits may also require assignments or new contracts. See the guide to commercial lease consent in a business sale.
Reconcile shareholder loans separately: is the loan repaid, assigned to the buyer, left outstanding or otherwise settled? For a partnership, section 18 of the Partnerships Act expressly addresses continuing liability for pre-retirement debts and an agreement with creditors to discharge the retiring partner. The owners’ private allocation of responsibility is only part of the exit.
Future transactions need a separate check. Under section 19 of the Partnerships Act, a change in the firm’s constitution can revoke a continuing guarantee for future transactions unless the agreement provides otherwise. Review the guarantee’s wording rather than assuming either that all exposure continues or that all exposure ends. That rule does not erase existing debts.
What should the buyout agreement and closing documents cover?
The documents should resolve ownership, payment and the ongoing relationship together. Even a friendly deal needs clear answers about what happens if the closing is delayed, a liability appears or an instalment is missed. The package will vary, but these are the main items to address:
- Parties and property: the correct buyer and seller, shares or partnership interest, shareholder loans and any separately transferred assets.
- Price and adjustments: the valuation basis, deposit if any, closing payment, deferred balance and treatment of cash, debt and working capital.
- Disclosure and warranties: ownership, authority, financial information, taxes, claims and material contracts, calibrated to what each owner knows and controls.
- Indemnities: responsibility for specified claims, limits, notice requirements, claim periods and any holdback or security.
- Conditions: financing, consents, guarantee releases, corporate approvals and the consequences if a condition is not satisfied.
- Transfer and corporate records: transfer instruments, certificates where applicable, resolutions, resignations and internal register updates. Separately identify any required public filings arising from the transaction or accompanying changes.
- Settlement and releases: which existing claims are resolved, who gives a release and what survives, including payment and enforcement rights.
- Transition: work to be performed, compensation, customer introductions, account access, intellectual property and records handover.
If an oppression proceeding is already underway, a negotiated buyout also needs the required court steps. Section 249(2) of Ontario’s Business Corporations Act and section 242(2) of the federal Act require court approval to settle or discontinue proceedings under those Parts. Include that approval in the settlement plan rather than treating the signed release as the end of the lawsuit.
An owner may also be a director, officer, employee, landlord or creditor. Deal with each role expressly. Resigning as a director does not itself sell shares, settle an employment entitlement or release past liability. If the owner remains to help with the transition, document that work and its end date.
Tailor confidentiality and any non-solicitation or non-compete terms to the actual transaction. Their enforceability depends on the role, wording and circumstances; a sale label does not resolve every issue. The guide to non-competes in business sales explains the distinction from ordinary employment restrictions.
Complete the minute book and corporate record updates as part of closing. Also confirm banking authority, signing permissions and the practical handover. A signed purchase agreement is not the same as a completed transfer.
What should you bring to the first meeting with your lawyer?
Bring the documents that establish ownership, obligations and the proposed deal. An initial review is more useful when the lawyer can compare what you want with the rights already on paper. Assemble what you have, identify what is missing and avoid delaying advice if a notice or response deadline is already running.
- The shareholders’ or partnership agreement, amendments, articles and ownership register.
- Recent financial statements, current management accounts and shareholder loan balances.
- Bank documents, guarantees, leases and any known consent requirements.
- Offers, term sheets, valuation reports and relevant correspondence or notices.
- Your preferred outcome, available financing, transition needs and unresolved claims.
Clarify who the lawyer represents. The company’s existing lawyer is not automatically your personal adviser in a negotiation against another owner. The accountant and valuator should also have clear roles, including whether an expert is jointly retained and how information will be shared.
Key takeaways
- Confirm the structure first. A purchase between shareholders, a corporate repurchase and a partnership exit need different treatment.
- Read before triggering. Existing buy-sell clauses can impose deadlines and outcomes you cannot choose later.
- Define the value and the payment. Separate equity, debt and shareholder loans, then document adjustments and financing.
- Obtain the necessary releases. Leaving the business does not automatically remove guarantees or past obligations.
- Finish the closing. Payment, transfers, consents, releases, records and the operational handover need to fit together.
Frequently asked questions
Can I buy out my business partner without a shareholders’ agreement?
Yes, if you negotiate an agreement to sell. The absence of a shareholders’ agreement does not prevent a voluntary buyout, but it can leave the price and exit process unresolved. Confirm the share ownership, articles, transfer restrictions and any other enforceable arrangements. If the other owner refuses, you need a legal basis to compel a sale; wanting to end the relationship is not enough on its own.
Can a 51% shareholder force a 49% shareholder to sell?
Owning a majority does not, by itself, give you a general right to take the minority’s shares. A compulsory transfer needs a valid contractual mechanism, an applicable statutory process or a court order. Removing someone from a management role does not itself transfer their shares. Trying to force a sale by diverting business, withholding information or manipulating compensation can create a separate dispute.
Is a 50% partner entitled to half the value of the business?
That can be a starting point if both owners hold identical shares, but the answer depends on what is being valued, the rights attached to the shares, the agreement and the transaction. Business enterprise value is different from equity value after debt and cash adjustments. Shareholder loans must also be accounted for separately. A negotiated buyout and a court-ordered buyout may use different valuation assumptions.
Can the corporation pay for the buyout?
Sometimes. The corporation may purchase its own shares, or redeem shares that are redeemable under its articles, subject to the governing statute, articles, approvals and solvency restrictions. That is a different transaction from one shareholder buying another’s shares and can produce a different tax result. Have the lawyer and accountant settle the structure before money is paid or the purchase agreement is signed.
Can I pay my partner in instalments?
Yes, if the seller agrees or an existing enforceable agreement provides for it. The documents should identify the debtor, interest, payment dates, security, any guarantees, default remedies and restrictions imposed by the bank. Transferring the shares before receiving the full price leaves the seller with credit risk. A promise to pay from future profits is not the same as a secured repayment obligation.
Does selling my shares release my personal guarantee?
No, not automatically. A bank, landlord or other creditor generally needs to agree to release you. A promise from the buyer to cover future claims may give you a reimbursement right, but does not by itself stop the creditor from enforcing its guarantee. Address written releases, refinancing or other agreed protection before closing.
How long does a business partner buyout take?
The schedule depends on agreement over price, the quality of the records, financing, tax planning and third-party consents. A negotiated transaction with complete records may be measured in weeks; disputed valuation, refinancing or litigation can extend it substantially. Build the timetable around the actual conditions to closing, including any contractual notice or election deadlines, rather than choosing an arbitrary date.
Do both partners need their own lawyer?
Separate advice is usually appropriate because the buyer and seller have different interests in price, warranties, payment security and releases. The company’s existing lawyer is not automatically the personal lawyer for either shareholder. Clarify who each adviser represents before sharing negotiation strategy or relying on advice about the buyout.
Talk to a Toronto business lawyer about a partner buyout
A workable buyout gives the continuing owner a business they can operate and the departing owner a payment arrangement and exit they understand. That means negotiating the price alongside the financing, liabilities and closing documents.
I help Ontario business owners review their agreements, negotiate buyout terms and document ownership changes, working with their accountants and valuators where needed. If you are considering an offer or have received one, book a free 30-minute consultation to discuss the agreement, the proposed terms and the next steps.
Ready to discuss a partner buyout?
Whether you want to buy, sell or understand an offer already on the table, bring your agreement and proposed terms. Jonathan Kleiman helps Ontario business owners work through the legal steps. Free 30-minute consultation.