Written by Henry Smith · Reviewed by Smiths Insurance & KiwiSaver — licensed Financial Advice Provider (FSP712931) · Last updated 2026-09-08

Professional Indemnity Insurance NZ: Who Needs It and What It Covers

Professional indemnity insurance covers a New Zealand professional against the cost of defending and settling a claim that their advice, design or service caused a client financial loss. It is not compulsory under any New Zealand statute: the Law Society confirms cover is optional for practising lawyers, and the FMA decided against a standard licence condition for financial advice providers. Practitioners commonly carry $1,000,000 to $2,000,000 of cover.

In short

• No New Zealand statute requires professional indemnity cover, and the New Zealand Law Society states that "PI insurance is currently optional for practising lawyers in New Zealand but there are mandatory disclosure requirements" (NZ Law Society, 26 March 2026).
• Chartered accountancy is the clearest exception, with CA ANZ requiring evidence of complying professional indemnity insurance from Certificate of Public Practice holders (CA ANZ).
• Professional indemnity policies are written on a claims-made basis, so cover for every piece of past work ends the day the policy lapses unless run-off cover is in place.

A professional indemnity policy answers errors, omissions, negligent advice and breaches of professional duty, paying the defence costs and any settlement where your work caused a client financial loss. It does not answer bodily injury or property damage, which is where public liability takes over. In New Zealand it is one of the most important and least understood forms of business cover.

It is also not compulsory. No New Zealand statute requires a professional to hold professional indemnity cover, including in the professions most people assume are mandated. Where PI insurance is effectively required, that requirement comes from a professional body's own rules or from the contract a client asks you to sign, and it can change without any change in the law. The section below sets out what the evidence actually shows.

This guide explains what professional indemnity insurance covers, who genuinely needs it, what drives the price, and the claims-made structure that quietly removes cover from professionals who let a policy lapse.

What Is Professional Indemnity Insurance?

Professional indemnity insurance, also called professional liability or errors and omissions insurance, covers the cost of defending and settling claims from clients or third parties who allege that your professional services caused them financial loss. In New Zealand a policy typically pays legal defence costs, settlements and damages, and court-ordered compensation, up to the limit of indemnity.

The key word is "financial loss." PI insurance is not about physical injury or property damage (that is what public liability insurance covers). It is specifically about situations where your professional work, advice, or service falls short, and someone suffers a monetary consequence as a result.

A PI policy typically covers:

• Legal defence costs for defending a claim, whether or not the claim succeeds
• Settlements and damages awarded to the claimant
• Court-ordered compensation for financial loss caused by your professional services
• Costs of rectifying work in some policies, the cost to redo or correct the defective work
• Defamation claims arising from professional communications
• Intellectual property infringement such as unintentional breach of copyright in deliverables
• Loss or damage to documents in your care, custody, or control
• Breach of confidentiality where client information is inadvertently disclosed

What PI Insurance Does Not Cover

Professional indemnity insurance typically excludes deliberate or fraudulent acts, claims or circumstances you already knew about before taking out the policy, bodily injury and property damage, which fall under public liability, contractual penalties such as liquidated damages for late delivery, fines and regulatory penalties, and work performed outside your declared profession.

• Deliberate or fraudulent acts. If you knowingly provide false advice or act dishonestly, your insurer will not cover the resulting claim.
• Known claims or circumstances. If you were aware of a potential claim before taking out the policy, it will not be covered.
• Bodily injury or property damage. These fall under public liability insurance, not PI.
• Contractual penalties. Liquidated damages clauses in contracts (such as penalties for late delivery) are generally excluded.
• Fines and regulatory penalties. Fines imposed by regulators are not insurable.
• Work outside your declared profession. If you are insured as an accountant but provide legal advice, a resulting claim may not be covered.

Is Professional Indemnity Insurance Compulsory in NZ?

No New Zealand statute makes professional indemnity insurance compulsory. The clearest evidence comes from the profession most often assumed to be covered by a mandate. The New Zealand Law Society states plainly that "PI insurance is currently optional for practising lawyers in New Zealand but there are mandatory disclosure requirements", under rules 3.4 and 3.4A of the Lawyers and Conveyancers Act (Lawyers: Conduct and Client Care) Rules 2008 (NZ Law Society consultation document, 26 March 2026). Lawyers must tell you whether they hold cover. They do not have to hold it.

That may not stay true. The Independent Review into the regulation of lawyers found that New Zealand "is an outlier among comparative legal jurisdictions because it is not mandatory for lawyers practising here to have professional indemnity insurance", and the Law Society ran a consultation from 26 March to 5 May 2026 on whether to introduce a compulsory requirement and whether to raise the minimum standards attached to the existing disclosure rules (NZ Law Society consultation document). Any change would need amendments to the relevant Rules and approval from the Minister of Justice, so it is a live proposal rather than a settled position.

The Law Society's own numbers show how much of the profession this affects. In a 2023 survey of lawyers practising on own account, with a 57% response rate, 84% of respondents confirmed they held PI insurance meeting or exceeding the Law Society's minimum standards. Of the 16% who did not, the majority were barristers (56%) and sole practitioners (26%) (NZ Law Society consultation document). Roughly one in six of the practitioners who answered were carrying the exposure themselves.

What the Rules Actually Say, Profession by Profession

We checked the current primary instrument for each of the professions most often described online as legally required to hold PI cover. In almost every case the requirement is not there. The table below records what the current Act, regulation or professional-body rule actually states, with the source in each row.

Two caveats worth knowing before you rely on a source that says otherwise. Architects will find an older NZRAB code of ethics document still circulating that quotes rule 50, which listed professional indemnity insurance as an optional item in terms of appointment; that rule was revoked on 1 January 2018 and even when it applied it required disclosure rather than cover. Engineers will find a $200,000 figure attached to producer statements, which Engineering New Zealand describes as what it "recommends" a firm state when issuing one, binding the firm rather than the individual engineer (Engineering New Zealand: professional indemnity insurance, why $200,000).

Where the Requirement Actually Comes From

Because the obligation is almost never statutory, it arrives from three other directions, and each of them binds you just as firmly in practice.

Your professional body's rules. As the table shows, a membership or registration body can make cover a condition of a practising certificate even where no statute does. Chartered accountancy in public practice is the clear New Zealand example. Requirements differ by body and change over time, so confirm against your own body's current rules rather than a general article, because the rule that binds you is theirs and not the law's.

The contract in front of you. Government agencies, large corporates, main contractors and property developers routinely require a named limit of indemnity before they will engage a consultant, and they will ask for a certificate of currency. For many consultants this is the real reason cover exists, and the limit is set by the largest contract you want to be eligible for rather than by your own risk assessment.

The size of the exposure itself. A defence cost is incurred whether or not the claim against you succeeds, and for a sole practitioner defending an unmeritorious claim can cost more than a year of fee income. That is the argument for cover that does not depend on anyone requiring it.

Who Genuinely Needs Professional Indemnity Insurance

Professional indemnity insurance matters most where a client relies on your judgement to make a financial decision, and where being wrong costs them money rather than injuring them. That is the test worth applying to your own practice: if a client could plausibly say "I lost money because I relied on what you told me", the exposure exists whether or not anyone has asked you to insure it.

Advice and analysis roles carry it most directly. Accountants and tax advisers, management and strategy consultants, valuers and surveyors, and financial and investment advisers all produce work a client acts on with money. A single incorrect calculation can produce a loss many times the fee that was charged for it.

Design and specification roles carry it in a different shape. Architects, engineers, building designers and draughtspeople produce work that is built, and a design defect is discovered years after the fee was paid and often costs more to rectify than the entire project fee. This is also the group most likely to face a contractual requirement for a named limit.

Technology and creative roles carry it in the least obvious form. IT consultants and software developers face claims when a system fails to perform as specified or a project does not deliver what the contract described. Marketing, advertising and design agencies face intellectual property infringement, misleading content and campaign non-performance claims. Recruitment consultants face claims over negligent reference checking and misrepresented candidates.

Allied health professionals sit in a New Zealand-specific position. ACC removes most personal injury claims from the picture, so the residual exposure is advice-related rather than treatment-related, and that is precisely the exposure PI insurance answers rather than a medical malpractice policy.

Professional Indemnity vs Public Liability: What Is the Difference?

Professional indemnity covers financial loss caused by professional advice or services, while public liability covers bodily injury or property damage caused by business activities. Professional indemnity policies are usually written on a claims-made basis and public liability on an occurrence basis, so many New Zealand professionals need both policies rather than choosing between them.

Many professionals need both. An IT consultant, for example, needs PI insurance for a software system that fails to work as promised and public liability for a client who injures themselves visiting the consultant's office. These are separate risks covered by separate policies, though some insurers offer combined packages.

If you are a business owner just starting out, understanding the difference between these cover types is one of the first steps in building the right protection.

How Much Does PI Insurance Cost in NZ?

PI insurance premiums in New Zealand are driven by your profession, your annual fee income, your claims history, the limit of indemnity you select, and the excess you accept. A sole-trader consultant on modest revenue with a $500,000 limit sits at the bottom of the market, while an engineering firm carrying a $5,000,000 limit sits at the top, because exposure and limit rise together.

The table below ranks six common New Zealand practice profiles against each other rather than quoting a price. A sole-trader consultant under $200,000 of revenue on a $500,000 limit sits lowest, an accountant on $300,000 to $700,000 with a $1,000,000 limit sits mid-table, and an engineering firm above $1,000,000 carrying a $5,000,000 limit sits highest. The ordering is QuoteHub's own, not a published rate table.

This ranking will shift by insurer, practice area, and claims history, so a quote is the only way to place your own practice accurately.

Factors that increase your premium:

• Higher revenue or fee income
• A history of claims or notifications
• Higher-risk practice areas (construction design, financial advice, medical)
• Higher limits of indemnity
• Lower excess (deductible) amounts
• Work involving contracts with uncapped liability

Factors that can reduce your premium:

• Clean claims history
• Strong risk management procedures (documented processes, quality checks)
• Lower-risk practice areas
• Higher excess amounts
• Membership of a professional body with risk management standards
• Bundling PI with other business insurance policies

Claims-Made vs Occurrence Basis

Professional indemnity policies in New Zealand operate on a claims-made basis, which means the policy responds to claims made and notified during the period of insurance rather than to the date the error occurred. FMG's wording puts it directly: the policy "operates on a 'claims made and notified' basis", and it excludes "claims made against a party insured under this policy after the period of insurance ends even if the event giving rise to that claim occurred during the period of insurance" (FMG, Professional Indemnity policy wording). Continuous cover is therefore not optional, and run-off cover is what protects you after you stop.

What does this mean?

• Claims-made: The policy responds to claims that are made during the policy period, regardless of when the actual error or incident occurred. If you made a mistake in 2024 but the client only brings a claim in 2026, your 2026 policy responds (provided you had continuous cover).
• Occurrence: The policy responds to incidents that occur during the policy period, regardless of when the claim is made. This is how most public liability and general insurance policies work.

Why does this matter?

The claims-made basis has a critical implication: you must maintain continuous cover. If you cancel your PI insurance or let it lapse, you lose cover for all past work, even work done years earlier. A claim arising from a project completed three years ago will have no cover if your policy is not active when the claim is made.

This is particularly important for professionals who are:

• Retiring or closing a practice. You need run-off cover (also called tail cover) to protect against claims from past work.
• Changing insurers. Ensure there are no gaps in cover and that your new policy includes retroactive cover for prior work.
• Taking a career break. Even a short lapse in cover can leave you exposed.

Run-off cover, as Vero Liability describes it, "applies where a company ceases to trade, sells its assets or merges with another entity", covering "any acts occurring prior to the date on which the company/entity ceased trading", and it is equally common "where individual directors of companies or partners of professional firms have retired or relinquished their positions" (Vero Liability, Professional Indemnity FAQs). It is bought for a defined number of years after you stop, and it still has to be renewed each year within that window. The day the policy lapses is the day cover for every piece of past work goes with it.

How a PI Insurance Claim Works

A professional indemnity claim runs through four stages, notifying the insurer as soon as a circumstance that could lead to a claim becomes known, investigation by a specialist solicitor or claims handler appointed by the insurer, defence or settlement managed by the insurer, and resolution, with the insurer paying agreed costs less the excess. Admitting liability without the insurer's consent can void cover.

Step 1: Notification. As soon as you become aware of a circumstance that could lead to a claim, notify your insurer. Most policies require you to notify circumstances, not just formal claims. Early notification is essential and can protect your cover.

Step 2: Investigation. The insurer appoints a specialist solicitor or claims handler to investigate the claim. You will need to provide all relevant documentation, correspondence, and records.

Step 3: Defence or settlement. The insurer manages the defence of the claim, including legal representation. Many claims are settled without going to court. Your insurer will typically seek your agreement before settling, though some policies give the insurer discretion to settle.

Step 4: Resolution. If the claim is settled or defended successfully, the insurer pays the agreed costs (less your excess). If a court awards damages, the insurer pays up to the limit of indemnity.

Important: Do not admit liability, make offers of settlement, or agree to rectify work without your insurer's consent. Doing so can void your cover.

Real-World Claim Scenarios

Professional indemnity claims in New Zealand often involve six-figure sums. Examples include a Hamilton accountant whose GST advice left a client with a $156,000 tax liability, settled for $120,000 plus $35,000 in defence costs, an Auckland IT firm whose data migration error cost a retailer $280,000, and a Christchurch architect facing a $450,000 drainage design claim.

Scenario 1: Accountant and Incorrect Tax Advice

A Hamilton accountant advises a client that a particular transaction is GST-exempt. The client proceeds on this basis, structuring a $1,200,000 property deal accordingly. Inland Revenue later determines the transaction is subject to GST, and the client faces a $156,000 tax liability plus penalties and interest.

The client brings a claim against the accountant for the additional costs. The accountant's PI insurer covers the legal defence ($35,000) and the settlement ($120,000), less the $5,000 excess.

Scenario 2: IT Consultant and Failed Software Implementation

An Auckland IT consulting firm is contracted to implement a new inventory management system for a retail chain. The system goes live but contains a critical data migration error that causes the retailer to oversell stock, resulting in $280,000 in lost revenue and customer refunds.

The retailer sues the IT firm for negligence. The PI insurer covers the defence costs and the negotiated settlement of $210,000.

Scenario 3: Architect and Design Defect

A Christchurch architect designs a commercial building with an inadequate drainage system. Two years after completion, the building experiences recurring flooding, causing damage to tenant fitouts and business interruption.

The building owner brings a claim against the architect for $450,000. The architect's PI insurer covers the legal costs ($60,000) and contributes to the settlement ($350,000). Without PI insurance, this single claim would likely have bankrupted the sole-practitioner practice.

What to Look for in a PI Insurance Policy

Comparing professional indemnity policies means checking the limit of indemnity, the retroactive date that sets how far back cover extends, the excess, which commonly ranges from $1,000 to $10,000, sub-limits on cover such as loss of documents or defamation, whether defence costs sit inside or in addition to the limit, territorial limits, and the continuous cover clause.

Limit of indemnity. This is the maximum the insurer will pay for a single claim or in aggregate over the policy year. Choose a limit that reflects the size of your contracts and the potential financial exposure of your work. Many professional bodies set minimum limits for their members.

Retroactive date. This determines how far back in time your cover extends. Ideally, choose "unlimited retroactive cover" or a date that matches when you first obtained PI insurance.

Excess (deductible). The amount you pay towards each claim. A higher excess reduces your premium but increases your out-of-pocket cost if a claim arises. Common excess levels range from $1,000 to $10,000.

Sub-limits. Some policies cap certain types of cover (such as loss of documents or defamation) at a lower amount than the main limit. Check these carefully.

Defence costs. Confirm whether defence costs are included within the limit of indemnity or paid in addition to it. "Costs inclusive" means legal fees reduce the amount available for the actual claim. "Costs in addition" is more favourable but typically more expensive.

Territorial limits. If you provide services to clients outside New Zealand, ensure your policy covers claims arising from international work.

Continuous cover clause. This provision covers claims arising from work done before the policy inception, provided you had continuous PI insurance and were not aware of the potential claim when you took out the current policy.

Getting the Right PI Insurance for Your Practice

Choosing the right PI policy is not simply about finding the cheapest premium. It is about ensuring that the cover matches the specific risks of your profession and the size of your contracts.

Professional indemnity is commercial liability cover, and it is placed by general insurance brokers rather than by the life and health advisers behind QuoteHub. Use this guide to arrive at that conversation knowing what to ask for: the limit of indemnity your largest contract requires, whether defence costs sit inside or outside that limit, the retroactive date on the policy, and what run-off cover would cost when you eventually stop practising.

Where QuoteHub can help is the cover that sits beside it: the business protection side of the picture, including key person and shareholder cover, which protects the practice against losing the person rather than against a claim. You can also compare policies across multiple insurers for the personal risk cover that sits underneath a professional practice.

Frequently Asked Questions

Is professional indemnity insurance a legal requirement in NZ?

No. No New Zealand statute makes professional indemnity insurance compulsory. For lawyers, the Law Society confirms that "PI insurance is currently optional for practising lawyers in New Zealand but there are mandatory disclosure requirements", and it consulted between 26 March and 5 May 2026 on whether that should change (NZ Law Society consultation document). For licensed financial advice providers, the regulator considered a mandate and rejected it: "the FMA decided not to include professional indemnity insurance as a standard condition" (FMA). The clearest New Zealand exception is chartered accountancy, where CA ANZ requires evidence of complying PI cover from Certificate of Public Practice holders. Where cover is effectively required it comes from a professional body's own rules or a client contract, so check the current rules of the body that issues your practising certificate.

What is the difference between professional indemnity and public liability insurance?

Professional indemnity covers claims for financial loss caused by your professional advice or services. Public liability covers claims for bodily injury or property damage caused by your business activities. They protect against different risks, and many businesses need both. See the comparison table above for a detailed breakdown.

How much PI insurance cover do I need?

This depends on the nature and size of your contracts, your profession, and any minimum requirements set by your professional body. As a general guide, your cover limit should be at least equal to the value of your largest contract or engagement. Many professionals carry $1,000,000 to $2,000,000 in cover, while larger firms may need $5,000,000 or more.

Can I get PI insurance if I have had a previous claim?

Yes, though your premium will likely be higher, and the insurer may apply specific exclusions related to the previous claim. Full disclosure of past claims and circumstances is essential. Failure to disclose can void your policy entirely.

What happens if I stop practising but a former client makes a claim?

If your PI insurance has lapsed, you will have no cover, even for work done while you were insured. This is because most PI policies operate on a claims-made basis. You need to arrange run-off cover (also called tail cover) to protect against claims from past work. This is especially important when retiring, closing a practice, or changing careers.

Does PI insurance cover subcontractors?

Generally, your PI policy covers claims arising from work done by you and your employees. Subcontractors should hold their own PI insurance. However, you can be held vicariously liable for subcontracted work, so check your policy wording and ensure your contracts require subcontractors to maintain adequate PI cover.

Is PI insurance tax deductible?

Yes. Professional indemnity insurance premiums are a legitimate business expense and are tax deductible in New Zealand. Consult your accountant for advice specific to your situation.

Next Steps

Professional indemnity insurance is not something to leave on the to-do list. A single claim from a dissatisfied client can exceed the total revenue of a small practice. For a sole practitioner, the cost of PI insurance is minor compared to the financial exposure of practising without it.

If you provide professional services of any kind, review your PI cover today. If you do not have cover, get it in place before your next client engagement.

For the PI policy itself, talk to a general insurance broker who places commercial liability. For the cover that protects the practice against losing a key person, talk to a QuoteHub adviser. Craig Smith Business Services Limited, trading as Smiths Insurance and KiwiSaver, is a licensed Financial Advice Provider (FSP712931) advising on life, health and business risk cover at no cost to you.

Disclaimer: This article is general information only and does not constitute personalised financial or legal advice. Insurance outcomes depend on individual circumstances, policy terms, and the specific insurer. QuoteHub connects you with licensed financial advisers (FSP712931) who can provide advice tailored to your situation. Always review the full policy wording before purchasing any insurance product.

References

• Financial Markets Authority (FMA), Insurance guidance
• Business.govt.nz, Insurance for business
• Insurance Council of New Zealand (ICNZ)
• IRD, Business income tax
• Sorted.org.nz, Business insurance
• ACC New Zealand, What we cover
• IRD, Income tax rates
• New Zealand Law Society, Consultation on compulsory professional indemnity insurance and minimum standards for disclosure (26 March 2026), retrieved 18 August 2026
• New Zealand Law Society, Consultation on professional indemnity insurance requirements, retrieved 18 August 2026
• FMA, Standard conditions for full FAP licences, retrieved 18 August 2026
• FMA, media release on standard conditions for licensing of financial advice providers, retrieved 18 August 2026
• FMA: Regulatory impact statement, FAP full-licence standard conditions, retrieved 18 August 2026
• Chartered Accountants Australia and New Zealand, Certificate of Public Practice, retrieved 18 August 2026
• Real Estate Agents Act 2008, retrieved 18 August 2026
• Registered Architects Rules 2006, retrieved 18 August 2026
• Chartered Professional Engineers of New Zealand Rules 2025, retrieved 18 August 2026
• Engineering New Zealand, professional indemnity insurance on producer statements, retrieved 18 August 2026
• FMG, Professional Indemnity policy wording 2024-25, retrieved 18 August 2026
• Vero Liability, Professional Indemnity FAQs, retrieved 18 August 2026

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