Buy-Sell Agreements: The One Document Every Co-Owned Business Needs

What a buy-sell agreement actually is

A buy-sell agreement is a legally binding contract between business co-owners (or between the owners and the company itself) that determines four things in advance:

• When an owner can — or must — sell their interest
• Who buys it
• At what price
• How the purchase is funded

The triggering events are typically the death of an owner, long-term disability, retirement or voluntary exit, termination, bankruptcy, divorce, or a specified buyout window after a certain anniversary. Without an agreement in place, the surviving owners may find themselves negotiating with a grieving spouse, a probate judge, or an outside party who inherited the shares. With one, the rules are already written.

Why every co-owned business needs one

A well-drafted buy-sell agreement does several things at once:

• Keeps control inside the business. The surviving owners aren’t suddenly partners with a deceased owner’s family, an ex-spouse, or whoever ends up with the shares.
• Locks in a fair price method. The valuation methodology is agreed to in advance, when emotions are low and nobody knows who will end up the seller.
• Reassures lenders, customers, and employees. Banks and large customers care that the business has a continuity plan; staff care that their jobs aren’t suddenly in question.
• Protects entity status. S-corp and LLC owners can lose favorable tax treatment if the wrong person ends up holding shares. A buy-sell prevents that.
• Prevents estate-tax surprises. The IRS values shares at fair market value at death — without an agreement that establishes one, your family could face a tax bill nobody planned for.

The two common structures

Cross-purchase agreement. Each co-owner personally buys life insurance on the other co-owners. When one dies, the surviving owners receive the proceeds and use them to buy out the deceased owner’s interest from the estate. Best for businesses with two or three owners — the number of policies needed grows quickly (n × (n−1) policies for n owners).

Entity purchase (stock redemption) agreement. The company itself owns and pays for one policy on each co-owner. When one dies, the company collects the proceeds and uses them to redeem the deceased owner’s shares; each surviving owner’s percentage increases proportionally. Cleaner for businesses with four or more owners — fewer policies to manage.

Both have meaningful tax implications worth modeling with your CPA before choosing. We’re happy to walk you through what we typically see when we structure these for clients in either direction.

Funding is the hard part

A buy-sell agreement that nobody can afford to execute is just a piece of paper. There are four common funding routes:

1. Cash. Sounds simplest, until you realize most successful small businesses don’t keep $500K–$2M sitting in cash to buy out a partner.
2. Borrowing. Possible — but the bank may not approve a large loan at the exact moment a key owner has just died. And the debt service drags the business after the transition.
3. Installment note. The buyer pays the seller over time. Workable for a planned retirement; tough on a deceased owner’s family who usually needs the money now, not over ten years.
4. Life insurance. A policy on each co-owner means that on the day a death occurs, the funds are available — tax-free in most cases — to execute the buyout immediately.

For death-triggered buyouts, life insurance is almost always the cleanest answer. For disability or retirement triggers, permanent policies that build cash value (whole life or universal life) can be tapped via policy loans to fund those buyouts without surrendering the death benefit. Term coverage is cheaper but only covers the death trigger — and only for the term length you bought.

What we see go wrong

Common issues we run into when reviewing existing buy-sell agreements:

• Out-of-date valuation. The agreement set a price method that hasn’t been recalculated in eight years and no longer reflects what the business is worth.
• Underfunded life insurance. Policies were sized to the business’s value at signing, but the business grew; the death benefit no longer covers the buyout price.
• Wrong policy type. Term coverage was bought twenty years ago for a then-young owner; it’s now expired or unaffordable to renew, just as the buyout becomes most likely.
• Mismatched ownership. The agreement says “cross-purchase,” but the policies are actually owned by the company — or vice versa — creating tax and legal problems on payout.
• No coordination with the estate plan. The buy-sell forces a buyout, but the owner’s will or trust didn’t account for it, slowing the transition or creating conflict at the worst time.

What to do this quarter

If you co-own a business and you don’t have a buy-sell agreement, get one drafted with a small-business attorney. Plan on 60–90 days from start to a signed document.

If you already have one, pull it out. Check the date. If it’s been more than three years since the last full review, treat it as overdue: re-verify the valuation method, the funding mechanism, and whether the life insurance backing it (if any) still matches what the business is worth today.

The legal drafting belongs with your attorney. The insurance structure belongs with an independent broker who can shop multiple carriers and place the right policies, the right way. We’re glad to look at the funding side with you and flag any gaps before they become a problem.

Read more about how Domham structures business life insurance — key-person, buy-sell funding, and business succession — or get in touch to have us review the policies behind your existing agreement.

This article is for general educational purposes only and is not legal, tax, or financial advice. Consult your attorney and CPA before drafting or amending any buy-sell agreement. Insurance products are subject to underwriting; coverage, features, and tax treatment vary by carrier and state.