How to Insure a Sole Trader in NZ: The Whole Cover Picture

A sole trader has unlimited personal liability, no employer cover and no sick leave. Here is the full NZ cover map, in priority order: personal risk first, then ACC, then business cover and KiwiSaver.

Most guides to sole trader insurance nz start with public liability and stop there. That gets the picture backwards. The thing that actually makes a sole trader different is not the business cover you buy; it is that there is no legal line between you and the business at all. Your business debts are your debts, and the income that keeps the lights on stops the day you do.

So before you compare premiums, it helps to map the whole picture, and to put it in the right order. This is general information on how the pieces fit together for a sole trader in New Zealand, in priority order, with current figures.

TL;DR: A sole trader has unlimited personal liability ¹ and no employer behind them, so personal cover comes first. ACC covers injury but not illness ⁴, leaving a real income gap. The usual order is: personal risk (income protection, trauma, life) → set your ACC choice → business covers (liability, expenses) → KiwiSaver, where there is no employer match ².

What makes insuring a sole trader different from a company?

A sole trader is not a separate legal entity. You register and operate under your own IRD number, you do not file annual returns with the Companies Office, and there is no company sitting between you and the work ⁹. That keeps things simple and cheap to run, which is exactly why many people start this way.

The trade-off is that "the business" and "you" are the same person in law. A limited company, by contrast, is a separate legal entity, so the company can hold its own liability cover, owe its own debts, and employ shareholder-employees on PAYE ¹⁹. None of that separation exists for a sole trader.

That single difference reshapes the cover picture in two ways. First, anything that goes wrong in the business can reach your personal assets. Second, there is no employer doing the things an employer normally does in the background: no payroll-deducted KiwiSaver match, no sick leave, no one quietly handling your ACC. Those jobs are now yours.

Why does unlimited personal liability change your cover needs?

Unlimited personal liability means there is no legal separation between the person and the business, so business debts can be recovered from personal assets such as the family home ¹. A creditor or a claimant is not limited to the business bank account; they can pursue what you own.

In practice this raises the stakes on two fronts. The everyday business risks, a client suing over advice or a job that caused loss, sit directly against your personal balance sheet rather than against a company shell. And the household risks matter more too, because if your income stops, there is no employer salary, no company reserve and no separate entity to absorb the shock.

This is why, for a sole trader, the priority order tends to run personal first, then business, rather than the other way around. The cover that protects your ability to keep earning, and your family if you cannot, generally does more than a public liability policy on its own. It is worth weighing both: liability cover protects against claims from others, while personal cover protects the income those claims, and everyday illness or accident, can interrupt.

Which personal covers does a sole trader actually need first?

There is no universal answer, because it depends on your income, your debts, your dependants and any cover you already hold. But for most sole traders, three personal covers tend to come up before the business ones, and they each do a different job.

• Income protection replaces a portion of your income (commonly up to 75%) if illness or injury stops you working. For a sole trader this is the load-bearing cover, because your income stops the moment you do and there is no sick leave behind you.
• Trauma (critical illness) cover pays a lump sum on diagnosis of a defined serious condition such as cancer, heart attack or stroke. It can clear debt or fund time off while you recover, independent of whether you can work.
• Life cover pays a lump sum if you die, which for a sole trader with unlimited liability can matter a great deal: it can clear business and personal debts so they do not land on your family or estate.

Whether a claim is paid depends on the terms, conditions, exclusions, stand-down periods and underwriting of the specific policy, and on your disclosure. This is a summary only. The right mix, and the right sums, differ from person to person, which is what a tailored conversation works through. For more on how these pieces sit together for self-employed people, see our self-employed financial checklist.

Which business covers matter, and which can you skip?

Business cover is real and worth having, but for a sole trader it usually sits after the personal layer, not instead of it. The aim is to cover the risks that could reach your personal assets, without paying for cover a one-person operation does not need.

Smiths Financial does not provide advice on general business or commercial insurance lines such as public liability and material damage; this is general information only, and for those covers please consult an appropriately authorised broker. What an adviser can help with is the personal-risk side, where business expenses cover and income protection overlap, so you are not paying twice for the same gap. Which of these you genuinely need depends on your trade. A solo writer and an on-site electrician have very different exposures.

How does ACC fit, and is CoverPlus Extra worth it?

ACC is not optional, and it does real work, but it only goes so far. ACC covers personal injury, not illness ⁴. A sole trader who is too sick to work, rather than injured, has no ACC income replacement and no employer sick leave to fall back on. That is the single biggest gap in most sole traders' plans, and it is why income protection sits in the personal layer above.

For injury, ACC pays. After a covered injury, weekly compensation replaces up to 80% of your earnings, based on your most recently completed tax year, after a one-week stand-down ⁵. Most sole traders are placed on standard CoverPlus by default, where both your levies and any payout are based on the previous year's taxable earnings ⁸.

The optional alternative is CoverPlus Extra (CPX), which lets you agree a fixed level of cover up front, regardless of fluctuating income, and ACC then pays 100% of that agreed amount before tax if injury stops you working ⁶⁸. For the year 1 April 2024 to 31 March 2025, CPX cover could be set between a minimum of $35,400 and a maximum of $113,826 per year ⁶.

CPX often suits people with variable or newly established income, because it removes the guesswork about what last year's figures will produce at claim time. It is not automatically better for everyone, and neither option covers illness. We work through this trade-off in detail in our guide to CoverPlus vs CoverPlus Extra.

How do you protect income when there's no sick leave or employer cover?

This is the heart of the sole trader problem. There is no employer salary, no sick leave, and ACC does not pay for illness ⁴. NZ Super is a long way off and is only a floor in any case; for a single person living alone on the M tax code it was $1,038.94 per fortnight after tax for the year to 31 March 2025 ⁷, which is a base income, not a replacement for a working income.

Two covers fill the income gap, and they are designed to dovetail with ACC rather than duplicate it:

• Income protection pays a monthly benefit if illness or injury stops you working. Because ACC already handles injury, sole trader policies are often structured to cover illness in full and top up accident claims, so you are not paying twice. The two levers that control both the premium and the protection are the waiting period (how long before payments start) and the benefit period (how long they continue).
• Business expenses cover is a separate, shorter-term benefit that keeps fixed overheads paid while you are off, so the business does not quietly bleed through rent and subscriptions during your recovery.

Whether either pays, and how much, depends on the policy terms, exclusions, stand-down periods, underwriting and your disclosure, so always read the policy wording. The point of putting income protection high in the order is simple: for a sole trader, the ability to keep earning is the asset everything else rests on.

What does a sole trader's cover plan look like in priority order?

Here is the whole picture as one map. The order matters because the lower layers depend on the upper ones: there is little point insuring the gear if an illness would stop the income that pays for everything.

A sole trader's cover plan, in priority order

1. Personal risk — income protection (illness gap), then trauma and life cover sized to your debts and dependants 2. ACC choice — confirm CoverPlus or set CoverPlus Extra for injury cover ⁶⁸ 3. Business covers — liability and professional indemnity where your trade needs them; business expenses cover for fixed overheads 4. KiwiSaver — no employer match, so self-fund to qualify for the Government contribution ²³

Source: Smiths Financial framework.

KiwiSaver sits at the base of the plan, not because it is least important, but because it is the long-game piece. As a self-employed sole trader you get no employer contribution and must make your own to qualify for the annual Government contribution ². For the KiwiSaver year 1 July 2024 to 30 June 2025, contributing at least $1,042.86 of your own money secured the full Government contribution of $521.43 ³. KiwiSaver is a long-term savings scheme; Government contributions, contribution rates and tax settings are set by the Government and can change. (This maximum was halved to $260.72 from 1 July 2025, so check the current figure.) Our guide to self-employed KiwiSaver with no employer walks through this.

Returns are not guaranteed; the value of investments can go down as well as up and you may get back less than you invested. Past performance is not a reliable indicator of future performance.

When does it make sense to incorporate and change your cover?

Some sole traders eventually incorporate, and when they do, the cover picture changes. A company is a separate legal entity, which limits the owner's liability and changes how things are structured: shareholder-employees can go on PAYE, and the company can hold its own liability cover and key-person cover in its own name ⁹.

That separation can be a reason to review cover, not a reason to assume you suddenly need less. The personal-risk layer, income protection, trauma and life, usually stays just as relevant, because your household still depends on your ability to earn. What changes is the ownership of business cover and the way ACC works for a shareholder-employee on PAYE.

Smiths Financial does not provide advice on company formation, tax structuring or legal matters; this is general information only, and the decision to incorporate should be worked through with an accountant or lawyer. What we can do is rebuild the personal and ACC layers around whatever structure you choose. There is no single trigger point. The right time to revisit it is usually when your income, your liability exposure or your structure changes materially.

Frequently asked questions

What insurance does a sole trader actually need first in NZ?

There is no fixed list, because it depends on your income, debts, dependants and trade. For most sole traders the personal-risk layer tends to come first, because ACC does not cover illness ⁴ and there is no employer sick leave. Income protection is usually the load-bearing cover, with trauma, life and business cover sized around it. A tailored conversation works through what fits you.

Does ACC cover a sole trader who gets sick rather than injured?

No. ACC covers personal injury, not illness ⁴. If illness stops a sole trader working, ACC pays nothing and there is no employer sick leave, which is why many sole traders add income protection to cover that gap.

Why does unlimited liability matter for insurance?

Because there is no legal separation between you and the business, business debts can be recovered from personal assets such as your home ¹. That raises the importance of both liability cover (against claims from others) and personal cover (to protect the income and family those events can affect), compared with a company structure that limits the owner's liability ⁹.

Is CoverPlus Extra worth it for a sole trader?

It depends on your income pattern. CoverPlus Extra lets you agree a fixed cover amount up front and pays 100% of it if injury stops you working ⁶⁸, which often suits people with variable or new income. Standard CoverPlus bases the payout on last year's earnings ⁵. Neither covers illness, so income protection is still relevant either way.

Do sole traders get a KiwiSaver employer contribution?

No. Self-employed sole traders get no employer contribution and must make their own contributions to qualify for the annual Government contribution ². For the year to 30 June 2025, contributing $1,042.86 secured the full $521.43 ³; that maximum has since changed, so check the current figure with IRD.

This article is general information only and is 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). We're generally paid by commission from the insurer or provider when you take out a policy or product through us; this doesn't change the premium or price you pay, and we manage any conflicts of interest in line with our duty to prioritise your interests. KiwiSaver is a long-term savings scheme; figures are correct as at 17 February 2025, and you should check current rules at ird.govt.nz and kiwisaver.govt.nz. Written by Henry Smith, Financial Adviser; reviewed by Craig Smith, Principal Adviser. Last reviewed 17 February 2025.