A buy-sell agreement is a binding contract among the co-owners of a closely held business that sets, in advance, who can buy a departing owner’s stake, at what price, and with what funds when a specified event occurs. The event is usually death, disability, retirement, a voluntary exit, divorce, or personal bankruptcy. The point is to keep ownership inside a group the current owners have chosen, and to replace what would otherwise be an emergency negotiation with a pre-agreed transaction.
Any business with more than one owner benefits from having one. They show up most often in partnerships, multi-member LLCs, and closely held corporations, where there is no public market for the shares and no default buyer waiting in the wings. Without the contract, state law fills the gap: an LLC member’s interest can pass to heirs who have no interest in running the business, a family court can hand part of an ownership stake to an ex-spouse, and a bankruptcy trustee can sell a co-owner’s interest to the highest bidder. Even where the succession itself is clean, the absence of a pre-agreed price almost guarantees a valuation fight, with each side hiring its own appraiser and the numbers rarely lining up.
What Triggers a Buyout
A buy-sell agreement sits dormant until something specific activates it. The events worth defining precisely in the contract are:
- Death. The clearest trigger. Surviving owners buy out the deceased owner’s interest rather than end up in business with the heirs.
- Disability. Usually defined as an inability to perform normal job duties for a sustained period. Disability buyout insurance typically requires an elimination period of at least 12 months, sometimes 18 or 24, before benefits start.
- Retirement or voluntary departure. An owner who wants out gets a structured exit at a pre-set price rather than trying to find an outside buyer for an illiquid stake.
- Divorce or personal bankruptcy. Restricting transfers keeps a co-owner’s ex-spouse or creditors from ending up with a piece of the business.
- Deadlock. When owners with equal voting power cannot agree on a critical decision, the agreement can force a resolution. A “shotgun clause” lets one owner name a price; the other must then either buy at that price or sell at it, which discourages lowball offers because either side of the trade can hurt.
Vague language like “when an owner can no longer contribute” invites exactly the kind of dispute the contract is supposed to prevent. Each trigger needs a definition tight enough that a stranger reading the contract could tell whether it has happened.
How the Buyout Price Is Set
Pricing is the single most important part of the agreement, and the part that causes the most trouble when it’s done poorly. Three approaches dominate.
Fixed Price
The owners write a specific dollar figure into the contract. It’s simple, and it goes stale fast. A business worth $2 million at signing might be worth $5 million five years later, and if no one updates the figure, the departing owner’s family gets shortchanged. Most fixed-price agreements call for annual reviews. Most owners skip them.
Formula-Based Valuation
The contract specifies a formula that calculates value at the time of the event. Common formulas use a multiple of earnings before interest, taxes, depreciation, and amortization, often three to five times annual earnings for small and mid-sized companies. Others use book value or a weighted average of net profits over the prior three to five years. The price adjusts automatically as the business grows or shrinks, without requiring the owners to renegotiate.
Independent Appraisal
The contract requires a certified appraiser to value the business when a triggering event occurs. This is usually the most defensible approach, especially for companies with complex assets, though it adds cost and delay. A well-drafted version includes a tie-breaker: buyer and seller each hire an appraiser, and if the two valuations diverge, a third appraiser either splits the difference or provides an independent figure.
Whichever method is chosen, it has to survive IRS scrutiny. Under IRC Section 2703, the IRS can ignore a buy-sell price that falls below fair market value when calculating estate or gift taxes. To be respected, the agreement must be a legitimate business arrangement, not a device to transfer property to family members at a discount, and its terms must be comparable to what unrelated parties would agree to in a similar deal.1Office of the Law Revision Counsel. 26 USC 2703 – Certain Rights and Restrictions Disregarded
Who Actually Buys the Interest
The mechanics of the purchase come down to two main structures, with a third that keeps the choice open.
Cross-Purchase Agreement
The remaining owners buy the departing owner’s shares or units directly, using personal funds or the proceeds of life insurance policies they own on each other. The tax advantage is that each buyer’s cost basis in the newly acquired shares equals what they paid, which reduces capital gains taxes if they later sell their own stakes.
The trade-off is logistical. Each owner needs a separate policy on every other owner. Two co-owners means two policies. Four means twelve. Six means thirty. The premium and paperwork burden scales quickly, so cross-purchase structures work best for businesses with a small number of owners.
Entity-Purchase (Redemption) Agreement
The company itself buys back the departing owner’s interest using corporate funds or business-owned life insurance. Redeemed shares get retired or held as treasury stock, and each remaining owner’s percentage rises without anyone spending personal money. The cost is on the tax side: the surviving owners’ basis in their own shares doesn’t change, so when they eventually sell, they owe capital gains tax on a larger spread. For companies with many owners, one policy per owner held by the entity is often simpler than the cross-purchase web.
Wait-and-See (Hybrid) Agreement
A wait-and-see structure defers the choice until the triggering event occurs. Typically the company gets a first option to redeem some or all of the interest, any remainder is offered to the individual owners, and whatever they don’t take, the company must buy. That flexibility lets the parties pick the most tax-efficient path with the facts on the table, rather than committing years ahead.
Funding the Buyout
The contract is only a promise until someone has the cash to make it real. The funding source usually depends on the trigger.
Life Insurance
Life insurance is the most common funding source for death-triggered buyouts because it produces a lump sum exactly when needed. In a cross-purchase structure, each owner buys and pays premiums on policies covering the other owners. In a redemption structure, the company holds the policies.
Business-owned policies carry a tax trap. Under IRC Section 101(j), the death benefit on an employer-owned life insurance contract is generally taxable as income beyond the premiums paid, unless two conditions are met. The employer must have given the insured employee written notice that the company could be a beneficiary and received written consent before the policy was issued. And the insured must fall within an exception: still an employee within the 12 months before death, a director or highly compensated employee when the policy was issued, or the proceeds used to buy the insured’s equity interest from the family or estate.2Office of the Law Revision Counsel. 26 USC 101 – Certain Death Benefits Most buy-sell arrangements fit the last exception, but the notice-and-consent paperwork is not optional. Skip it, and the IRS taxes the proceeds.
Any business that owns life insurance on its employees also has to file Form 8925 with its annual tax return, reporting the number of covered employees and the total coverage in force.3Internal Revenue Service. Form 8925 – Report of Employer-Owned Life Insurance Contracts
Disability Buyout Insurance
When the trigger is disability, disability buyout policies are designed to fund the purchase at the agreed price. Benefits usually don’t begin until the elimination period ends, commonly 12 months and sometimes as long as 24, which gives the disabled owner time to recover before the buyout becomes irreversible.
Installment Payments
Insurance doesn’t cover a voluntary retirement or departure. In those cases, the buyer often pays the seller over several years through a promissory note, usually with interest and a security interest in business assets to protect the seller if the buyer defaults.
Installment sales come with their own tax rules. Under the installment method, the seller doesn’t recognize the entire gain in the year of sale. Each payment is split among a tax-free return of basis, capital gain, and interest income. The gain portion of each payment equals the payment amount multiplied by the gross profit percentage, which is the total expected profit divided by the total contract price.4Office of the Law Revision Counsel. 26 USC 453 – Installment Method The interest portion is taxed as ordinary income in the year received.5Internal Revenue Service. Publication 537 – Installment Sales If the note doesn’t specify adequate interest, the IRS will impute it, reclassifying part of the principal and changing the tax outcome.
Cash Reserves and Sinking Funds
Some companies set aside money over time to fund future buyouts, avoiding both insurance premiums and interest costs on notes. The obvious risk is timing. An unexpected death in year two of a ten-year savings plan leaves the fund far short of what’s needed. Cash reserves generally work as a supplement to insurance, not a substitute.
Extra Scrutiny for Family Businesses
Buy-sell agreements among family members draw closer attention from the IRS because the temptation to set an artificially low price and shrink an estate tax bill runs high. The Section 2703 requirements apply to everyone, but family agreements face a practical presumption that they might be a transfer device rather than a genuine business arrangement.1Office of the Law Revision Counsel. 26 USC 2703 – Certain Rights and Restrictions Disregarded
There is a safe harbor. If nonfamily members own more than 50% of the restricted property and are subject to the same restrictions, the IRS generally respects the price. Businesses that don’t meet that threshold need to show the valuation method tracks actual fair market value at the triggering event. A stale fixed price set at drafting and never revisited is almost certain to fail. An independent appraisal at the triggering date, or a formula tied to current earnings, has a much better chance of holding up.
The federal estate tax exemption is $15 million per individual for 2026, up from $13.99 million in 2025. Business interests that push an estate above that threshold face a 40% federal estate tax on the excess, which is what makes the pricing method inside the buy-sell agreement so consequential for higher-value companies.
What It Costs to Draft One
Attorney fees for a standard buy-sell agreement generally run from about $500 to $3,000, with straightforward arrangements averaging around $1,000 to $1,500. Complex agreements involving multiple owners, layered entities, or sophisticated valuation formulas cost more. Measured against the litigation, forced liquidations, and tax penalties that follow when there is no agreement, the drafting fee is minor.
Plan for maintenance too. The agreement should be reviewed whenever a new owner joins, an owner leaves, the company’s value shifts meaningfully, or the tax rules change. Tying the review to the same annual moment owners update their financial statements is the simplest habit, and the one most owners neglect until a triggering event forces the issue.