Legally Reviewed by Jen Rabbitt Murray on July 28, 2026
When you spend years building a business, that business becomes one of your most valuable assets and one of the most commonly overlooked in estate planning. Without a clear plan for what happens to your ownership interest when you die, become disabled, or decide to exit, your co-owners, your family, and the business itself are left exposed. A buy-sell agreement is one of the most effective tools to address that gap, and understanding how it fits into your broader estate plan is essential for any business owner who wants to protect what they have built.
At Quadros, Migl & Kilmer, we understand that business interests and personal wealth rarely operate in isolation. With over 120 years of combined legal experience and offices in Houston, The Woodlands, Dallas, and Austin, our team works with business owners, private equity clients, and real estate investors on estate planning strategies that account for the full picture of their financial lives.
What a Buy-Sell Agreement Does
A buy-sell agreement is a legally binding contract between business owners that governs what happens to an ownership interest upon a triggering event. Triggering events typically include death, disability, divorce, bankruptcy, or a voluntary decision to leave.
Without this type of agreement, your ownership stake could pass through your estate in ways you never intended, possibly reaching someone with no interest in running the business or whose involvement could create significant conflict among remaining owners. A properly drafted agreement ensures that your interests are handled according to the terms all parties agreed upon well in advance.
How Buy-Sell Agreements Connect to Your Estate Plan
A buy-sell agreement does not exist independently of your estate plan. It is an integral part of it. Two areas where this connection is especially important are protecting your heirs and managing your estate tax exposure.
Protecting Your Heirs
One of the most valuable roles a buy-sell agreement plays in an estate plan is to provide a clear, structured path for your heirs. Your family may inherit your ownership stake, but they may have no ability or desire to operate the business. The agreement establishes a pre-negotiated mechanism by which the remaining owners can purchase the interest at fair value, giving your heirs liquidity while keeping the business intact. This is why business continuity planning and personal estate planning must be addressed together rather than treated as separate exercises.
Business Valuation and Estate Taxes
A buy-sell agreement also directly affects how your business interest is valued for estate tax purposes. Under federal tax law, a price set in a buy-sell agreement is not automatically accepted for estate tax purposes. According to 26 U.S.C. Section 2703, a valuation set by a buy-sell agreement will generally only be respected if the agreement is a bona fide business arrangement, is not a device to transfer the business to family members for less than full and adequate consideration, and reflects terms comparable to what unrelated parties negotiating at arm’s length would agree to. Meeting these requirements calls for careful drafting and, in many cases, an independent appraisal supporting the agreed valuation method.
Common Structures to Consider
There are several ways to structure a buy-sell agreement, and the right approach depends on your ownership arrangement, tax situation, and planning goals. The following structures are the most widely used among business owners.
- Cross-purchase agreements: Each owner agrees to purchase the departing owner’s interest directly, which can provide surviving owners with favorable tax treatment through a stepped-up cost basis.
- Entity purchase agreements: The business itself redeems the departing owner’s interest, a simpler approach for larger ownership groups, though one with distinct tax considerations.
- Hybrid or wait-and-see agreements: These combine both structures, typically granting the business a first right of refusal before individual owners can exercise a secondary purchase option, letting the parties decide which approach makes the most sense once a triggering event actually occurs.
Choosing the right structure requires coordination with your overall estate plan to ensure both align on ownership succession, tax treatment, and available liquidity.
Disability and Divorce as Triggering Events
Death is often the first triggering event people think of when discussing buy-sell agreements, but disability and divorce create equally significant risks for a closely held business. An owner who becomes permanently disabled may be unable to contribute to the business while still holding an equity stake, creating friction with remaining owners who continue doing the work. A well-drafted agreement defines exactly how disability is determined and establishes a clear buyout process so the business is not left in limbo while owners disagree about next steps.
Divorce presents a different but equally serious risk. Without a buy-sell agreement addressing this scenario, a departing spouse could end up with a direct or indirect ownership interest in the business as part of a property settlement. Requiring owners to maintain agreements, such as prenuptial or postnuptial agreements, that keep business interests separate from marital property, alongside buyout terms that trigger upon divorce, helps prevent an outside party from gaining a stake in a company they had no role in building.
Funding the Agreement
A buy-sell agreement without a funding mechanism is little more than a written intention. Life insurance is the most common vehicle, providing immediate capital upon an owner’s death to facilitate the buyout without disrupting operations or forcing a rushed sale of business assets. Other options include installment notes or sinking funds, depending on the business’s cash flow and the size of the buyout obligation. Our attorneys regularly assist clients in preparing to sell or transfer ownership of their businesses with this kind of coordinated strategy already in place.
Disability buyouts typically require a different funding source than death buyouts, since disability insurance policies designed for this purpose pay out under different terms and timelines than life insurance. Coordinating both types of coverage with the agreement’s specific triggering language ensures the funding will actually be available when it is needed.
When to Review and Update Your Agreement
A buy-sell agreement is not a document you draft once and forget. Changes in business valuation, ownership composition, tax law, or personal estate circumstances are all reasons to revisit the agreement. Clients who have restructured their business organizations, brought on new partners, or begun planning a future sale through mergers and acquisitions often find their existing agreements no longer reflect their current situation, making periodic reviews a critical part of long-term planning.
We generally recommend reviewing your buy-sell agreement every few years or immediately after any significant change in ownership, valuation, or family circumstances. A buy-sell agreement is also a natural companion to broader business succession planning, since the two documents should work together rather than in conflict.
How a Buy-Sell Agreement Interacts With Other Estate Planning Tools
For business owners with substantial appreciated assets, a buy-sell agreement is often just one piece of a broader exit and estate strategy. Owners considering a future sale sometimes also explore tools such as a charitable remainder trust to manage capital gains exposure on highly appreciated business interests. Evaluating how these tools interact with your buy-sell agreement’s valuation and funding terms before a triggering event occurs helps avoid conflicting provisions between documents drafted at different times.
Estate Plan With Quadros, Migl & Kilmer
For Texas business owners, an estate plan without a buy-sell agreement is incomplete. The attorneys at Quadros, Migl & Kilmer bring the cross-disciplinary perspective needed to align your business succession planning with your personal estate goals. Attorney Jen Rabbitt Murray focuses her practice on estate planning for business owners and individuals with complex holdings, helping clients integrate trust structures, ownership transfers, and succession documents into a cohesive whole.
Whether you are drafting a buy-sell agreement for the first time or revisiting one that no longer reflects your current goals, our team is ready to help. We serve clients across Houston, The Woodlands, Dallas, and Austin. Reach out through our contact form to get started.
Frequently Asked Questions About Buy-Sell Agreements and Estate Planning
Do all business partners need to sign the same buy-sell agreement?
Yes, a buy-sell agreement generally works best when every owner is bound by the same terms, since the entire purpose is to create a predictable, agreed-upon process regardless of which owner experiences a triggering event first. Inconsistent agreements among different owners can create confusion and disputes at the exact moment clarity is needed most.
How is the buyout price determined in a buy-sell agreement?
Buy-sell agreements typically use a fixed price that is updated periodically, a formula based on financial metrics such as revenue or earnings, or an independent appraisal conducted at the time of the triggering event. The method you choose should reflect your business’s stability and how frequently its value is likely to change.
Can a buy-sell agreement be funded with something other than life insurance?
Life insurance is the most common funding tool because it provides immediate cash at the time it is needed most, but installment payment plans, sinking funds, and disability insurance for non-death triggering events are all viable alternatives depending on the business’s cash flow and the size of the potential buyout obligation.
What happens if a co-owner refuses to sign a buy-sell agreement?
A buy-sell agreement only works if every relevant owner agrees to its terms, so a refusal by one owner leaves the business without the protection the agreement is meant to provide. In these situations, it can help to have an attorney facilitate the conversation and explain how the agreement protects every owner’s interests, not just the majority owner’s.
About the Attorney
Shareholder | Estate, Wealth Planning and Probate
Jen Rabbitt Murray was the founding attorney of J Murray Law, LLLP, where she focused on business law, business planning, tax efficient structuring, estate planning, and wealth planning. She is also a certified mediator who works closely with business owners to integrate buy-sell agreements, trust structures, and ownership transfers into a cohesive estate strategy.