Every co-owned business will eventually lose an owner — to death, disability, divorce, retirement, or a falling-out. The only question is whether the terms of that exit were agreed to in advance, while everyone was friendly, or negotiated in crisis, when they were not. A buy-sell agreement is the document that answers the question in advance. Owners call it the business prenup for a reason.
What a buy-sell agreement does
A buy-sell agreement is a contract among the owners of a business (and usually the company itself) that controls what happens to an owner's interest when a trigger event occurs: who may or must buy it, at what price, and on what payment terms. It can live inside an LLC operating agreement or shareholder agreement, or stand alone. Without one, the defaults are grim. A deceased owner's interest passes to their heirs — you may find yourself in business with a co-owner's spouse who has never seen the P&L. A departing 50% owner can sit on their interest indefinitely, blocking decisions. And because California is a community property state, an owner's divorce can put a portion of the interest in play before a family court. The buy-sell converts each of these events from an ownership crisis into a purchase transaction with a preset price and process.
The trigger events — the "D" list
A complete agreement covers each of these, because each creates a different problem:
- Death — typically a mandatory buyout so heirs receive cash and the survivors keep control;
- Disability — defined concretely (how long, certified by whom), since a permanently absent owner still holding equity strains everyone;
- Divorce — a right to purchase any interest awarded to an owner's former spouse, keeping ownership inside the group;
- Departure — voluntary exit or termination of employment in businesses where owners work in the company, often at different prices for different circumstances;
- Default and bankruptcy — provisions addressing defaults, creditor liens, and bankruptcy, subject to bankruptcy law and restrictions on transfers of governance rights;
- Deadlock — for 50/50 companies, a forced-resolution mechanism (mediation, then a buyout procedure such as a shotgun clause) so paralysis has an exit ramp;
- Third-party offers — rights of first refusal so no one sells to an outsider without offering the interest internally first.
The valuation clause — where most fights start
The heart of the agreement is how the price gets set, and vague drafting here simply postpones the dispute. The common approaches:
- Agreed value, updated annually. Owners set a number each year. Simple, but stale certificates are endemic — the agreement needs a fallback (usually appraisal) when the number is more than a year or two old;
- Formula. A multiple of revenue or EBITDA, or book value. Predictable and cheap, but formulas drift from reality as the business changes;
- Appraisal. An independent valuation at the time of the trigger — often the most accurate and the slowest, and the agreement should say who picks the appraiser and who pays;
- Hybrids. Agreed value with an appraisal backstop is a common, sensible compromise.
Decide explicitly whether minority and marketability discounts apply, and whether the price differs by trigger — full value at death, a discount for an owner who walks out mid-growth. Silence on these points is an invitation to litigation.
Funding and structure: where the money comes from
A buyout obligation without a funding source is a lawsuit waiting for a trigger. Death buyouts are classically funded with life insurance, structured one of two ways: cross-purchase (owners insure each other and buy the decedent's interest personally) or redemption (the company owns the policies and buys back the interest). The choice has real tax stakes. In Connelly v. United States (2024), the U.S. Supreme Court held that a corporation's contractual obligation to redeem a deceased shareholder's shares was not a liability that reduced the corporation's value for federal estate tax purposes, while the life insurance proceeds funding the redemption were an asset considered in valuing the corporation — a result that has many closely held businesses restructuring toward cross-purchase or trusteed arrangements. For lifetime buyouts, the agreement should permit installment payments with a promissory note, security, and interest, so a buyout does not bankrupt the company. And in a community property state, obtaining spousal consent to the agreement at signing avoids a later argument that a non-owner spouse is not bound.
When to put one in place
The best time is at formation, as part of the operating agreement or shareholder agreement your business formation attorney drafts; the second-best time is now, while relations are good and no trigger is on the horizon. Waiting has a way of ending badly — once an owner is ill, divorcing, or halfway out the door, every term becomes adversarial, and businesses without an agreement too often end up in partner dispute litigation that consumes the value everyone built. Revisit the agreement every few years: valuations, insurance amounts, and the owner roster all age.
Talk to a California business attorney
If your business has more than one owner and no buy-sell agreement, that is the most important gap in your documents. Itkin Law drafts buy-sell provisions matched to your ownership, valuation, and funding realities. Schedule a free consultation or call (949) 418-2113.
This article is attorney advertising and provides general information only. It is not legal advice and does not create an attorney–client relationship. Facts matter; consult a lawyer about your specific situation.
