To buy out a business partner, start with your operating agreement or shareholder agreement, agree on a price supported by a business valuation, and then move the deal through due diligence, a signed purchase agreement, funding, and the regulatory filings that make the ownership change official. Most buyouts take several months from the first conversation to closing, and the sequence matters: skipping a step, or handling one out of order, is how partners end up in a breach-of-contract dispute or facing an unexpected tax bill. This guide walks through how to buy out a business partner from the first document review to the last post-closing filing.
Start With Your Governance Documents
Before you talk price, pull the documents that govern your company. For an LLC, that is the operating agreement. For a corporation, the bylaws and any shareholder agreement. These documents usually control who can buy or sell an interest, how the price gets set, and what notice the departing partner has to give. Many include a right of first refusal that requires a departing owner to offer their interest to the remaining partners before shopping it outside.
Look specifically for buy-sell provisions. These clauses list the events that trigger a buyout right — commonly death, permanent disability, bankruptcy, or a voluntary departure — and they usually spell out the price mechanism. If your documents contain these terms, the buyout largely follows the roadmap the partners agreed to at formation. Deviating without written consent from everyone involved can expose you to a breach-of-contract claim.
If the company never adopted a formal agreement, or the agreement is silent on buyouts, state law fills the gap. Most states have adopted some version of the Uniform Partnership Act, which supplies default rules for how a partner may leave and how the buyout price is calculated. Under those rules, when a partner dissociates without triggering a full dissolution, the partnership must purchase the interest at a price equal to what the partner would have received if the business’s assets were sold at the greater of their liquidation value or going-concern value on the date of dissociation. That default is less predictable than a tailored agreement, so if your company lacks one, negotiate terms directly rather than assuming the statute lands in your favor.
Agree on a Price
Price is usually the hardest part. Both sides should understand the valuation choices before hiring an appraiser or opening negotiations.
Valuation Methods
An asset-based approach adds the fair market value of what the business owns — equipment, real estate, inventory, intellectual property — and subtracts its debts. It works well for asset-heavy businesses and poorly for companies whose value lives in customer relationships or future earnings.
An income-based approach, most often a discounted cash flow analysis, projects future profits and discounts them to present value using a rate that reflects the risk of the business. This captures the ongoing economic benefit the departing partner is giving up.
A market-based approach compares your business to similar companies that have recently sold, using price-to-earnings or revenue multiples. Reliable comparison data for small private companies can be hard to find.
Fair Market Value vs. Fair Value
The valuation standard matters as much as the method. Fair market value assumes a hypothetical willing buyer and willing seller, and appraisers routinely apply discounts for a minority stake and for lack of marketability. Those discounts can meaningfully reduce the departing partner’s payout.
Fair value, the standard courts often apply in dissenting-shareholder or oppression cases, generally disallows those discounts and tends to produce a higher price. Your operating agreement may specify which standard applies. If not, state statute controls.
Getting the Valuation Done
An appraiser will typically want at least three years of federal tax returns, current year-to-date profit and loss statements, a balance sheet, and details on any off-balance-sheet liabilities. Professional valuations for small companies usually cost several thousand dollars and take a few weeks. If the partners can’t agree on one appraiser, each side can hire their own and negotiate from the two reports, or agree upfront that a third appraiser’s number will be binding.
Investigate Before You Sign
Co-ownership is not a substitute for due diligence. A formal review protects the buying partner from inheriting problems that were not priced into the deal.
- Financial records. Verify that books, bank statements, and tax filings are accurate. Look for unreported income, unusual expenses, and discrepancies between internal records and filed returns.
- Contracts. Read customer agreements, vendor contracts, leases, and loan documents. Flag anything with a change-of-control provision requiring the other side’s consent to transfer ownership.
- Litigation. Check for pending or threatened lawsuits, regulatory investigations, and unresolved claims. An undisclosed suit becomes the buying partner’s problem after closing.
- Tax compliance. Confirm payroll, sales, and income taxes have been filed and paid. Unpaid tax obligations can attach to the business itself, not just the individual who failed to pay.
- Personal guarantees. Identify every loan, lease, or credit line the departing partner personally guaranteed. Those guarantees do not disappear at closing unless the lender formally releases them.
If the review turns up a material liability that was not in the valuation, renegotiate the price or require the departing partner to clear the issue before closing.
Structure and Fund the Payment
Once you have a price, decide how the money moves. The structure affects the buyer’s cash flow, the seller’s security, and both sides’ taxes.
Lump Sum
A lump-sum payment sends the full price at closing, usually by wire. The seller gets immediate liquidity, but the buyer generally has to borrow. SBA 7(a) loans are a common financing tool for partner buyouts. Interest rates are capped at the prime rate plus a margin that varies by loan size: for loans over $350,000, the maximum is prime plus 3 percentage points, and smaller loans allow higher margins.1U.S. Small Business Administration. Terms, Conditions, and Eligibility With the prime rate at 6.75% as of late 2025, effective rates on larger SBA buyout loans run roughly 9.75% or higher depending on loan amount and borrower profile. A buying partner who has co-owned the business for at least two years and whose company has a debt-to-net-worth ratio at or below 9:1 may qualify for an SBA 7(a) loan without an additional equity injection.
Seller Financing
In seller-financed deals, the buyer pays a down payment at closing and then makes monthly or quarterly installments over a period of years. This preserves working capital and lets the buyer fund the buyout partly from the business’s own profits. The interest rate is negotiated, often the prime rate plus one to three percentage points.
The parties sign a promissory note setting the payment schedule, interest rate, and default penalties. The seller usually retains a security interest in the business assets or the transferred ownership shares as collateral, documented in a security agreement that lets them reclaim their interest on default.
Filing a UCC-1 financing statement with the Secretary of State creates a public record of the seller’s lien on the business assets.2Legal Information Institute (LII) / Cornell Law School. UCC Financing Statement The filing establishes the seller’s priority over other creditors if the business runs into trouble before the debt is repaid. Filing fees vary by state and are typically modest, often under $50.
Life Insurance Funding
Partners planning ahead for a death-triggered buyout often fund it with life insurance. In a cross-purchase structure, each partner owns a policy on the other, and the survivor uses the death benefit to buy the deceased partner’s interest from the estate. The surviving partner gets a tax basis equal to what they paid, which reduces future capital gains if they sell later. In an entity-redemption structure, the company owns the policies and uses the death benefit to redeem the deceased partner’s shares; the surviving owners’ percentages rise automatically but they do not receive a step-up in basis.
The Supreme Court’s 2024 decision in Connelly v. United States held that life insurance proceeds payable to the corporation are an asset that increases the company’s fair market value for federal estate tax purposes, which can raise the estate’s tax bill under an entity-redemption arrangement.3Justia. Connelly v United States For businesses with significant policies, a cross-purchase structure may produce a better tax result.
Plan for the Tax Bill
Tax treatment depends on entity type, deal structure, and what the business owns. Getting this wrong is expensive for both sides.
Selling a Partnership or LLC Interest
When a partner sells an interest in a partnership or multi-member LLC, the gain or loss is generally treated as capital.4Office of the Law Revision Counsel. 26 US Code 741 – Recognition and Character of Gain or Loss If the partner held the interest for more than a year, the gain qualifies for long-term capital gains rates, which for 2026 are 0%, 15%, or 20% depending on taxable income.5IRS. 2026 Adjusted Items (Rev Proc 2025-32) For a single filer, the 0% rate applies to taxable income up to $49,450, the 15% rate applies up to $545,500, and the 20% rate applies above that.
There is an important exception. If the partnership holds “hot assets” — primarily unrealized receivables and substantially appreciated inventory — the portion of the buyout price attributable to those assets is taxed as ordinary income rather than capital gain.6Office of the Law Revision Counsel. 26 US Code 751 – Unrealized Receivables and Inventory Items Businesses with large receivables or appreciated inventory should have an accountant analyze the asset mix before the deal is signed.
Payments From the Partnership Itself
When the partnership buys out a departing partner directly, rather than one partner buying from another, a different set of rules can apply. Payments in exchange for the departing partner’s interest in partnership property are generally treated as a distribution and taxed under the capital gain rules above.7Office of the Law Revision Counsel. 26 US Code 736 – Payments to a Retiring Partner or a Deceased Partners Successor in Interest But payments for unrealized receivables, and in certain service partnerships where capital is not a material income-producing factor, payments for goodwill (unless the partnership agreement provides for them), may be reclassified as ordinary income to the departing partner and deductible by the partnership. Spell out the classification of each payment component in the buyout agreement.
Installment Reporting
If the deal is structured as seller financing spread over multiple years, the departing partner can generally report the gain proportionally as payments come in, instead of recognizing all of it in the year of sale.8Office of the Law Revision Counsel. 26 US Code 453 – Installment Method That can keep the seller in a lower bracket each year and lower the total tax cost.
What the Buyer Can Deduct
The buying partner may be able to amortize certain intangible assets acquired in the buyout, including goodwill and customer-based intangibles, over a 15-year period.9Office of the Law Revision Counsel. 26 US Code 197 – Amortization of Goodwill and Certain Other Intangibles Whether this deduction is available depends on how the transaction is structured. In a direct interest purchase, the buyer generally does not get a step-up in the tax basis of the partnership’s underlying assets unless a special election is made. The structure that saves the buyer on taxes may cost the seller more, so run the numbers with a tax professional before you commit.
Put the Deal in a Purchase Agreement
Once price, payment, and tax structure are settled, the parties sign a purchase agreement that captures every term. For an LLC this is usually a membership interest purchase agreement; for a corporation, a stock purchase agreement.10Securities and Exchange Commission. LLC Membership Interest Transfer Agreement At a minimum, it should cover:
- Transfer of interest. A clear statement that the seller is transferring their entire ownership interest, free of liens and encumbrances.
- Representations and warranties. The seller confirms authority to transfer, absence of undisclosed liabilities, filed tax returns, and accurate financials. The buyer represents financial ability to close.
- Indemnification. Each side agrees to compensate the other for losses from a breach. General representations commonly survive for 12 months after closing; fundamental ones like authority to sell and ownership may survive indefinitely.
- Payment terms. A detailed schedule that incorporates the promissory note, any security interest, and any escrow.
Most buyout agreements also include a non-compete keeping the departing partner from starting or joining a competing business for a set period. Non-competes tied to a sale are generally easier to enforce than employment non-competes, but courts still require reasonable scope in duration and geography. A typical buyout non-compete runs two to five years and covers the geographic area where the company actively does business.
At closing, both parties sign the agreement and ancillary documents, funds move by wire or through escrow, and the seller surrenders their membership certificates or stock to the company for cancellation. If the departing partner held a management role, they resign from all officer, director, or manager positions, documented in the company’s records.10Securities and Exchange Commission. LLC Membership Interest Transfer Agreement Their fiduciary duties to the company and remaining owners generally end at that point.
Close the Loop After Closing
Signing the agreement is not the final step. Several updates are required to make the ownership change official with outside parties.
Government Filings
File an amendment with the Secretary of State to update the members, managers, or directors of record. Fees vary by state and are typically modest. Skipping this creates administrative friction when renewing licenses or entering new contracts.
Notify the IRS of the change in the company’s “responsible party” by filing Form 8822-B within 60 days of the change.11Internal Revenue Service. About Form 8822-B, Change of Address or Responsible Party – Business Missing the deadline does not trigger an automatic penalty, but until you file, the IRS still treats the departing partner as the person responsible for the company’s tax matters.
Banks, Credit, and Personal Guarantees
Contact every bank where the business holds accounts. Update authorized signers and remove the departing partner from all accounts and credit lines. Until the bank’s records change, the departing partner may still have access to company funds.
Personal guarantees are the most commonly missed post-closing item. A departing partner who personally guaranteed a loan or commercial lease stays liable until the lender or landlord formally releases them. The buying partner should work with each creditor before or shortly after closing to refinance the obligation, substitute their own guarantee, or get a written release. Removing someone from the operating agreement does not remove them from a personal guarantee.
Licenses, Permits, and Insurance
Update local business licenses and professional permits to reflect current ownership and management. Notify carriers for professional liability, directors-and-officers, and any key-person policies tied to the departing partner, and adjust coverage accordingly. If the company’s group health plan covered the departing partner, that partner may be eligible for COBRA continuation coverage for up to 18 months if the business has 20 or more employees, and the company must send the required COBRA election notice within the federal timeframe.12U.S. Department of Labor. An Employees Guide to Health Benefits Under COBRA