Funding a Buy-Sell Agreement: Planning a Partner Buyout

A buy-sell agreement answers a question every business with more than one owner should confront before it becomes urgent: what happens to a co-owner’s share of the business if they die, become disabled, or decide to leave? The agreement sets the rules, who may buy the departing owner’s interest, how it is valued, and on what terms. But a rule is only as good as the money behind it. Funding is the part that makes the buyout actually happen, giving the remaining owners the cash to buy out a partner or their estate without crippling the business. Many agreements exist on paper with no funding at all, which is a plan in name only.

This article is for business partners and co-shareholders in Ottawa and across Ontario who want to understand how a buy-sell is funded and why the method matters. It covers the triggering events, the funding options and their trade-offs, the two common insurance structures, and how to keep the agreement and the funding aligned over time.

What the agreement is meant to do

A buy-sell agreement, usually part of a broader shareholders’ agreement, brings order to a disorderly moment. It fixes how the shares will be valued, who has the right or obligation to buy them, and the terms of payment. Without it, a deceased owner’s shares typically pass to their family, which can leave the surviving owners running a company alongside a grieving spouse who wants out, or an heir with no interest in the business. The agreement replaces that uncertainty with a known process. For the wider context of owner transitions, see our overview of business succession planning.

The three events a buy-sell should address are death, disability, and voluntary departure or retirement. Each creates a need to transfer ownership and each needs a funding answer, because the surviving owners rarely have the purchase price sitting idle.

The funding options

There are four practical ways to fund a buyout, and most agreements lean heavily on the first.

• Insurance. Life insurance funds a buyout on death; disability buy-out insurance funds one on long-term disability. The policy delivers cash precisely when the triggering event occurs, which is why it is the dominant method. Our note on key person insurance covers the related protection of the business itself.
• Sinking fund. The owners save cash over time to build a reserve for a future buyout. This is simple but slow, ties up capital, and may fall short if a trigger occurs early, before the fund has grown.
• Vendor financing (promissory note). The buyer pays the departing owner or their estate over several years from future profits. This needs no up-front cash but leaves the estate exposed to the business’s future performance and the buyer’s survival.
• Bank borrowing. The remaining owners borrow the purchase price. This provides immediate cash but burdens the company with debt at a fragile moment and depends on the bank’s willingness to lend.

The table below compares the methods at a high level. Figures and outcomes are illustrative of the mechanics, not a quote or forecast.

Funding method	Cash available when needed	Cost	Main drawback
Life or disability insurance	Immediate, at the trigger	Ongoing premiums	Underwriting; premiums rise with age
Sinking fund	Only what has accumulated	Opportunity cost of held cash	May fall short if trigger is early
Vendor promissory note	Paid over years	Interest; deferred	Estate bears business and buyer risk
Bank borrowing	Immediate, if approved	Interest; debt load	Burdens company; approval not assured

Why insurance dominates for death

The reason insurance is the default for a death buyout is simple: death creates a large, immediate need for cash, and nothing else matches insurance for delivering it. A death benefit paid to a named beneficiary is generally received free of income tax and arrives within weeks, letting the surviving owners buy the shares and the estate receive fair value in cash. Compared with saving up a fund that may not be ready, borrowing at a difficult time, or paying an estate over years, insurance is both faster and more certain. The economics are covered further in life insurance in estate planning.

Disability is the trigger owners most often forget. A partner who becomes permanently unable to work still owns their shares and still needs to be bought out, but life insurance does not pay. Disability buy-out insurance fills that gap and should be considered alongside the life coverage.

The two insurance structures

How the insurance is owned shapes the tax outcome, and there are two common approaches.

In a criss-cross arrangement, each owner personally owns and pays for a policy on the lives of the other owners. On a death, the survivors receive the proceeds personally and use them to buy the deceased owner’s shares directly. It is straightforward but can become unwieldy with several owners of different ages and health.

In a corporate (or share redemption) structure, the company owns the policies on each shareholder. On a death, the corporation receives the proceeds and redeems the deceased owner’s shares. The advantage is the capital dividend account: the death benefit above the policy’s adjusted cost basis generally credits the account, letting the company pay much of the proceeds to the estate as a tax-free capital dividend, as explained in corporate-owned life insurance. The trade-offs involve the deceased’s capital gain, the adjusted cost basis, and the detail of the redemption, which is why the structure must be chosen with your accountant and lawyer rather than assumed.

Keeping the agreement and funding aligned

A funded buy-sell fails quietly when the pieces drift apart. Three alignments matter. The valuation method in the agreement must be realistic and updated, because a buyout funded to an old, low value leaves the estate short; our guide to how to value a business explains the approaches. The coverage amount must track the growing value of the business, or insurance will under-fund the buyout. And the ownership and beneficiary of the policies must match the structure the agreement assumes, or the tax result can go wrong. Review all three periodically, and whenever the business value or ownership changes.

This work belongs inside your business-owner planning and insurance and risk review, coordinated across the advisor, accountant, and lawyer so the legal agreement and the funding actually fit together.

Don’t forget disability and departure

Because death is the most dramatic trigger, owners tend to fund it and overlook the other two. Yet a partner who becomes permanently disabled, or who simply wants to retire or exit, still has to be bought out, and life insurance does nothing for either case. Disability buy-out insurance addresses a long-term disability, providing a lump sum or structured payments to fund the purchase of the disabled owner’s shares. A voluntary departure or retirement usually relies on vendor financing or a sinking fund, since no insurance event has occurred. A complete buy-sell plan sets out a funding answer for all three triggers, not just the one that is easiest to imagine. Many disputes among co-owners arise precisely because the agreement addressed death but left disability and departure vague.

Reviewing the plan over time

A buy-sell agreement is not a document to sign and file away. As the business grows, the gap between its current value and the amount the agreement is funded to can widen quietly, leaving the estate or the departing owner short. The valuation method should be sensible and refreshed, the insurance coverage should rise with the business, and the ownership of the policies should still match the structure the agreement assumes. A periodic review, ideally alongside your annual financial and tax planning, keeps the agreement and its funding in step with reality rather than frozen at the value they held when the company was smaller.

Next step

A buy-sell agreement without funding is a promise no one can keep. If you share ownership of a business and want the certainty that a co-owner’s death, disability, or departure will not force a crisis, book a private consultation with Kevin Hayes Financial Services. We will review your agreement and its funding in plain terms, model the coverage needed, and coordinate with your accountant and lawyer so the plan holds together.