TREADSTONE LAW · ONTARIO · DIGITAL LEGAL SERVICES · EST. MMXXI ·TSL
Home/Articles/Wills & Estates
№ 53 Wills & Estates

Funding a Buy-Sell Agreement With Life Insurance in Your Ontario Estate Plan

Learn how Ontario business partners use life insurance to fund a buy-sell agreement, so a deceased owner's estate is paid out fairly and fast.

Wills & Estates6 min readTSLBy the Treadstone Law team · OntarioUpdated 2026-07
All articles
Key takeaways
  • When a business partner dies, their ownership interest doesn't just vanish — it typically becomes part of their estate, to be dealt with according to their will (or intestacy, if they…
  • Even with a clear buy-sell obligation in place, the surviving partners still need actual money to complete the purchase — and business cash flow is rarely sitting idle waiting for…
  • Which structure makes sense depends on the number of owners, the business's corporate structure, and tax considerations that go beyond estate law alone — this is an area where a lawyer…

A buy-sell agreement answers an important question before it becomes a crisis: if one business partner dies, what happens to their share of the business? Without one, a deceased owner's shares often pass to their estate — meaning the surviving partners could suddenly find themselves in business with a grieving spouse or an estate trustee who has no interest in, or ability to run, the company. A well-drafted buy-sell agreement solves the "who gets the shares" problem. Funding it with life insurance solves the equally important "where does the money come from" problem.

Without a funding mechanism, even a well-drafted buy-sell agreement can be worthless in practice — the surviving partners may be contractually obligated to buy out the deceased's share, but with no accessible source of funds to actually do it.

The Problem a Buy-Sell Agreement Solves

When a business partner dies, their ownership interest doesn't just vanish — it typically becomes part of their estate, to be dealt with according to their will (or intestacy, if they had none). Left unaddressed, this can mean:

A buy-sell agreement, typically built into or alongside a shareholders' agreement, generally requires (or gives an option for) the surviving owners to buy out the deceased's interest, and the estate to sell it, at a price and process the partners agreed on in advance — while everyone was still getting along and thinking clearly.

Why Life Insurance Is the Usual Funding Choice

Even with a clear buy-sell obligation in place, the surviving partners still need actual money to complete the purchase — and business cash flow is rarely sitting idle waiting for exactly this scenario. Life insurance solves the timing problem: a policy on each owner's life pays out promptly on death, providing the funds needed to complete the buyout without forcing the business to take on debt, liquidate assets, or stretch out payments to the deceased's estate over years.

Common Ways to Structure the Insurance

StructureHow it generally worksCommon consideration
Cross-purchaseEach owner personally owns and is the beneficiary of a policy on each other owner's lifeCan get complicated to administer with more than two or three owners, since the number of policies multiplies
Entity purchase (corporate-owned)The corporation itself owns the policies and is the beneficiary, using the proceeds to redeem the deceased owner's sharesSimpler to administer with multiple owners, but involves its own corporate and tax considerations
Hybrid arrangementsA combination approach, sometimes used to balance administrative simplicity with tax planning goalsRequires careful drafting to make sure the insurance structure actually matches what the buy-sell agreement requires

Which structure makes sense depends on the number of owners, the business's corporate structure, and tax considerations that go beyond estate law alone — this is an area where a lawyer and an accountant or insurance advisor typically need to work together.

Steps to Put This in Place

  1. Start with the buy-sell agreement itself — the insurance is meaningless without a clear, enforceable obligation defining what happens to the shares and at what price or valuation method.
  2. Agree on a valuation method the partners will actually use when the time comes, rather than leaving "fair value" undefined and inviting a dispute later.
  3. Determine the appropriate amount and structure of insurance for each owner's share, working with an insurance advisor and accountant alongside legal counsel.
  4. Put the policies in place and keep them current as the business grows — a policy sized for the business's value five years ago may fall well short today.
  5. Review the whole arrangement periodically, especially after a change in ownership percentages, a new partner joining, or a significant change in the business's value.

What Happens Without This in Place

If a business has no buy-sell agreement, no funding mechanism, or both, the death of an owner often gets resolved through negotiation under pressure — with the surviving partners trying to reach an agreement with a grieving family, in an environment where positions can harden and legal disputes become more likely. This is generally more expensive, slower, and more damaging to the business than having the structure in place beforehand.

Frequently asked questions

Do we need a lawyer and an insurance advisor, or just one?

Generally both. A lawyer drafts and reviews the buy-sell agreement's legal terms; an insurance advisor and accountant help determine the right amount, structure, and tax treatment of the funding itself. These roles work together rather than substitute for each other.

What happens if the business's value has grown since we set up the insurance?

The policy amounts may no longer match what's actually needed to fund a buyout at current value, which is exactly why periodic review of both the valuation method and the insurance amounts matters — this isn't a "set it and forget it" arrangement.

Can a buy-sell agreement work without life insurance?

Yes, but the surviving partners then need another realistic funding source — savings, financing, or an installment payment structure to the estate — each of which comes with its own drawbacks compared to an insurance payout that's available promptly on death.

Does this replace the need for a will?

No. A buy-sell agreement addresses the business interest specifically; it doesn't replace a comprehensive will addressing the owner's full estate. The two should be reviewed together to make sure they're consistent with each other.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

This is a wills & estates question

Start a file online — flat, published fees, reviewed by a licensed Ontario lawyer before a dollar is owed.

ContactStart a File →