Buy-Sell & Key Person · Canada
Key Person Insurance: Protecting the Business, Not Just the Owner
What happens to revenue, client relationships, and lender confidence if the person the business depends on most is suddenly gone? Key person insurance compensates the corporation directly — for death, disability, or critical illness.
Written & reviewed by Gavin Dyer, AIC-Licensed Insurance Advisor (Alberta)
Last reviewed September 8, 2026
The Problem
Some People Aren't Replaceable on Short Notice
Every business has at least one person whose absence would do real financial damage — not because they're irreplaceable forever, but because replacing them takes time, and the business bears real costs during that gap: lost revenue, lost expertise, a shaken lender, or client relationships that walk out the door with the person who built them.
Key person insurance is how the business itself is compensated for that gap — separate from any personal life insurance the key person may hold for their own family, and separate from any buy-sell coverage funding an ownership transition. It's specifically about keeping the business financially stable while it recovers from losing someone critical.
Life, Disability, and Critical Illness — Where Each Applies
Key person exposure isn't only about death. A key person is statistically far more likely to become disabled or be diagnosed with a critical illness during their working years than to die — which is why a complete key person strategy usually considers all three:
Key Person Life Insurance
Pays the corporation a lump sum if the key person dies, compensating for lost revenue, the cost of finding and training a replacement, and disrupted client or lender relationships during the transition.
Key Person Disability Insurance
Pays the corporation if the key person becomes disabled and can't work — often the more likely scenario, and one ordinary business overhead coverage doesn't address, since it's about the person's contribution, not the office's fixed costs.
Key Person Critical Illness Insurance
Pays a lump sum to the corporation on diagnosis of a covered critical illness, giving the business breathing room to cover a leadership gap and lost momentum without waiting on a disability claim process.
Sizing the Coverage
| Basis | How It Works | Fits Best When |
|---|---|---|
| Revenue or salary multiple | Coverage set as a multiple (often 5–10x) of the key person's salary or the revenue they're directly responsible for. | The key person's contribution is measurable in sales, billings, or managed revenue. |
| Replacement cost | Coverage sized to what it would actually cost to recruit, hire, and train a replacement — plus the productivity gap during that period. | The role requires specialized expertise or a long ramp-up period. |
| Debt / guarantee-tied | Coverage matched to business debt the key person has personally guaranteed. | The business has financing that depends on that person's guarantee or relationship with the lender. |
Who This Is For
- Founder-led businesses where one person's relationships or expertise are core to operations.
- Businesses with financing that depends on a key person's personal guarantee.
- Multi-shareholder businesses where a shareholder is also operationally critical — worth reviewing alongside buy-sell funding.
Business & Estate Review
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A short questionnaire so Gavin can understand your corporate structure before your call — not an application, and not a substitute for advice from your own accountant or lawyer.
Frequently Asked Questions
Related Reading
Buy-Sell Agreement Funding
Funding the ownership transition, not just the operational gap.
Read moreLife Insurance for Professionals & Professional Corporations
Key person considerations specific to professional practices.
Read moreBusiness Succession Insurance
The broader plan for what happens when a key leader is gone.
Read moreThis is not tax or legal advice. Gavin Dyer is a licensed insurance advisor in Alberta — not a lawyer, accountant, or tax advisor. This page explains how insurance is generally used in situations like these; it is not a personalized recommendation for your corporation or estate. Frank Cover handles the insurance analysis and implementation. Your own accountant and lawyer should confirm the tax and legal treatment for your specific structure before you act on anything here.