Key Person Insurance for NZ Small Businesses (2026): Sizing Cover When One Person Holds It Together

Most NZ firms hinge on one or two people. Here is how key person insurance works — who counts as a key person, how to size the cover, who should own the policy, and how it differs from buy-sell — from a NZ adviser's perspective.

Most New Zealand businesses are very small. Of the country's 617,330 enterprises, around 74% have no paid employees at all, and only 2,838 have more than 100 staff ¹². When a firm is that thinly staffed, a single departure — through death, terminal illness or long-term disability — can do real financial damage. Key person insurance is the cover designed for exactly that: it pays the business a lump sum so it can absorb the disruption and keep trading. This guide explains how it works in NZ, how cover is sized, who should own the policy, and where it differs from shareholder protection.

TL;DR: Key person insurance pays your business a lump sum if a person it depends on dies or can't work. In a country where about 74% of the 617,330 enterprises have no employees ¹², one departure can be material. Cover is usually sized as lost gross profit during disruption, plus the cost to recruit and train a replacement, plus any debt the person's presence underpins.

What is key person insurance, and who is a key person?

Key person insurance (sometimes called "key man" cover) is a policy that pays a lump sum to the business if a nominated individual dies, is diagnosed with a terminal or serious illness, or becomes totally and permanently disabled, depending on the benefits selected. The money belongs to the company, not the person's family, and is there to keep the business solvent and functioning while it recovers.

A "key person" is anyone whose absence would cause the business genuine financial harm. That is usually not about job title. Common examples include:

• A founder or managing director who holds the client relationships, the bank's confidence and the strategy.
• A top salesperson or rainmaker who personally generates a large share of revenue.
• A technical specialist — a lead engineer, a chartered professional, a developer — whose knowledge is hard to replace.
• A person whose name, licence or accreditation the business trades on.

In many small NZ firms the key person and the owner are the same individual. With around 2.33 million filled jobs spread across roughly 617,330 enterprises ⁸, the typical firm runs lean, so the loss of one person is rarely trivial.

This is business-protection cover, and whether a claim is paid depends on the terms, conditions, exclusions, stand-down periods and underwriting of the specific policy, and on disclosure at application. Always read the policy wording.

How does losing a key person actually hurt a business?

The damage rarely shows up as a single number, which is why owners tend to under-estimate it.

• Lost revenue and profit. Sales the person would have closed don't happen. Projects stall. Clients who dealt with them personally may drift to competitors.
• Replacement cost. Recruiting and training a replacement takes time and money, with a productivity gap while they get up to speed.
• Debt and finance pressure. Banks often lend partly on the strength of a business's key people. A lender may review facilities, or a covenant may be triggered, when that person goes.
• Disruption and morale. Remaining staff carry extra load; some may leave. Suppliers and customers may lose confidence.

New Zealand is significantly under-insured against these shocks. Around 70% of New Zealanders are under-insured for life and health cover, and four in five have no protection for their income against sickness or disability ⁶ — and businesses tend to carry the same gap. Only about 35% of NZ adults report holding life insurance, leaving the country among the least-insured OECD markets ⁷. A lump sum that lands quickly buys breathing room to make calm decisions rather than forced ones.

How do you size key-person cover?

There is no single formula, but a practical adviser approach builds the sum insured from three components and adds them together. This is general information — the right figure for any business depends on its own numbers.

1. Lost gross profit during the disruption period. Estimate the gross profit the key person is responsible for, then the realistic time it takes the business to recover (often one to three years). A common starting point is a multiple of the profit attributable to that person, or of their total remuneration package, over the recovery window.

2. Cost to recruit and train a replacement. Recruitment fees, the salary premium often needed to attract a replacement quickly, and the cost of the productivity ramp-up while they learn the role and relationships.

3. Debt or covenant protection. Any business borrowing the person's presence underpins — an overdraft, a term loan, a personal guarantee, or a covenant a lender could call in.

Figure — Sizing key person cover (NZ): lost gross profit during disruption + cost to recruit and train a replacement + debt/covenant protection = key-person sum insured. Source: adviser business-protection framework. This is an illustration of the method, not a quote; the right number depends on the business's actual figures and is set with your accountant.

These are estimates, not guarantees. The point is to get the order of magnitude right with real numbers from the business, rather than guessing a round figure. We do this work alongside your accountant, who has the gross-profit and remuneration data to hand.

Who should own the policy — the company or the individual?

For genuine key-person cover, the business usually owns the policy, pays the premiums and is the beneficiary. That keeps the purpose clean: the money is there to protect the company's profits, and it lands with the company. It also matters for tax, as the next section explains.

Ownership still needs care:

• Company-owned. The standard structure for protecting business profits. The company applies, pays and receives the proceeds. The insured person consents to being covered, but the policy is a business asset.
• Individual or cross-owned. More common where the cover is really about ownership succession — buying out a co-owner's shares — than about replacing a key employee. That is shareholder protection, a different job (see below).

Getting ownership wrong can change the tax outcome and, in some cases, who is legally entitled to the money. It is worth setting deliberately at application rather than defaulting. For the broader principles of ownership and structure, see how an adviser structures life cover.

How is key-person cover different from shareholder or buy-sell cover?

The two are easy to confuse because both can involve insuring the same person, but they solve different problems.

A well-protected business often needs both: key-person cover so the business survives the disruption, and a funded buy-sell agreement so ownership transfers without a fire sale. We cover the second in detail in buy-sell agreement funding NZ.

How are premiums and proceeds taxed in NZ?

This is where structure and purpose really matter, and where Inland Revenue's published view (QB 17/06) is the guide ³⁴⁵. The tax treatment follows the purpose of the policy.

• Revenue purpose (protecting taxable profits). Where the cover is taken out to protect the business's taxable profits — replacing lost income from losing the person — premiums are generally deductible under section DA 1, and the claim proceeds are taxable income, because they replace taxable profits ³.
• Capital purpose (e.g. securing a loan). Where the policy is for a capital purpose, such as protecting the ability to repay borrowing, the capital limitation in section DA 2 denies the premium deduction, and the corresponding proceeds are capital, not taxable income ⁴.
• Mixed-purpose policies must be apportioned between their revenue and capital components ⁴.
• No FBT. Inland Revenue confirms no fringe benefit tax applies to genuine key-person cover, because the benefit protects the employer's profits rather than being provided to the employee ⁵.

Smiths Financial does not provide tax advice. This is general information only — the deductibility and tax treatment of any specific policy should be confirmed with your accountant or tax adviser against your circumstances and IRD's current guidance.

How does an adviser structure key-person cover for an SME?

In practice, setting up key-person cover runs through a handful of steps, done with the owner and their accountant rather than off a quote engine.

1. Identify the key people. Who, realistically, would hurt the business most if they were gone — and for how long would the disruption last?

2. Size each component. Lost gross profit over the recovery period, replacement cost, and any debt or covenant exposure, using the business's actual figures.

3. Set the purpose and ownership. Decide whether the cover is protecting revenue, capital, or both — because that drives both the tax position and how the policy is owned, and loop in the accountant early ³⁴.

4. Choose the benefits. Life cover at minimum; often terminal illness, and sometimes trauma or total and permanent disability, so the business is protected if the person survives but can't work. Each benefit type has its own terms, exclusions and stand-downs to read on the policy wording.

5. Compare across insurers. We compare cover from a range of NZ insurers rather than a single provider; the panel we work with is listed in our disclosure, and it is not every provider in the market.

6. Review it annually. Profits, debt, remuneration and the people themselves change. Cover sized in 2024 can be wrong by 2026, so it is re-tested each year.

If your business carries debt the owner personally underpins, our guide to business exit vs KiwiSaver for retirement is a useful companion, because the same person is often both the business's engine and its retirement plan.

Frequently asked questions

What is key person insurance in simple terms?

It is a policy that pays your business a lump sum if a person it depends on dies, becomes terminally ill, or — depending on the benefits chosen — can't work due to serious illness or disability. The money goes to the company to cover lost profit, recruitment and disruption while it recovers. Whether a claim is paid depends on the policy's terms, exclusions, stand-downs and your disclosure.

Who counts as a key person?

Anyone whose absence would cause the business real financial harm — a founder, a top salesperson, a technical specialist, or whoever holds the key client relationships. In many small NZ firms it's the owner. It's about financial impact, not job title.

How much key-person cover does a business need?

A common approach is to add three figures: the gross profit lost during the recovery period (often one to three years), the cost to recruit and train a replacement, and any debt the person's presence underpins. The right number depends on the business's own figures and is best set with your accountant. These are estimates, not guarantees.

Are key person insurance premiums tax-deductible in NZ?

It depends on the policy's purpose. Where it protects taxable profits (revenue purpose), premiums are generally deductible and proceeds taxable ³. Where it protects a capital item such as a loan, premiums are usually not deductible and proceeds not taxed ⁴. Mixed policies are apportioned ⁴. Confirm the treatment with your accountant — we don't provide tax advice.

How is key-person cover different from a buy-sell agreement?

Key-person cover protects the business's profits when it loses someone it relies on. A funded buy-sell agreement lets surviving owners buy a departing owner's shares cleanly. Many businesses need both — see our buy-sell agreement funding guide.

Who owns a key-person policy?

For genuine key-person cover the business usually owns the policy, pays the premiums and receives the proceeds, which keeps the purpose and tax treatment clean. Where the real aim is buying out an owner, a different, ownership-based structure usually applies.

General information, not personalised financial advice. It does not take into account your particular financial situation, goals or needs. Before acting, consider whether it's right for you and seek advice tailored to your circumstances. Craig Smith Business Services Ltd (FSP712931), trading as Smiths Financial, holds a Class 2 licence issued by the Financial Markets Authority and is a member of the Financial Dispute Resolution Service (FDRS). Smiths Financial does not provide tax advice; confirm tax treatment with your accountant. Written by Henry Smith, Financial Adviser; reviewed by Craig Smith, Principal Adviser. Last reviewed 16 January 2026.