Professional Indemnity Insurance NZ: Who Needs It & Costs | QuoteHub
By QuoteHub Editorial Team · Updated 2026-02-19
Professional Indemnity Insurance NZ: Who Needs It and What It Covers
If you provide professional advice, design work, consulting, or any service where a client relies on your expertise, there is always a risk that something goes wrong. A miscalculation in a structural design. Tax advice that turns out to be incorrect. A software system that fails to perform as promised. In each case, the client suffers a financial loss and looks to you for compensation.
Professional indemnity insurance (PI insurance) exists to cover exactly this scenario. It protects professionals and businesses against claims arising from errors, omissions, negligent advice, or breaches of professional duty. In New Zealand, it is one of the most important but least understood forms of business cover.
This guide explains what professional indemnity insurance covers, which professions need it, what it typically costs, and how it differs from other types of business insurance.
What Is Professional Indemnity Insurance?
Professional indemnity insurance, sometimes called professional liability insurance or errors and omissions insurance, is a policy that covers the costs of defending and settling claims made against you by clients or third parties who allege that your professional services caused them financial loss.
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
No insurance policy covers everything. Professional indemnity insurance typically excludes:
- 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.
Who Needs Professional Indemnity Insurance in NZ?
Almost anyone who provides professional services, advice, or design work should consider PI insurance. In some professions, it is legally required or mandated by a professional body.
Professions Where PI Insurance Is Mandatory
Several New Zealand professions and regulatory bodies require practitioners to hold professional indemnity insurance as a condition of practising or maintaining registration:
- Lawyers. The New Zealand Law Society requires all practising lawyers to hold PI insurance through the Lawyers' Mutual Indemnity Fund.
- Financial advisers. Under the Financial Markets Conduct Act 2013 and the Code of Professional Conduct for Financial Advice Services, financial advice providers must hold PI insurance or demonstrate equivalent arrangements.
- Real estate agents. The Real Estate Agents Authority (REAA) requires licensed agents to hold professional indemnity cover.
- Architects. The New Zealand Registered Architects Board requires PI insurance for registered architects.
- Engineers. While not universally mandatory, Engineering New Zealand (formerly IPENZ) strongly recommends PI cover, and many engineering firms require it as a condition of contract.
Professions Where PI Insurance Is Strongly Recommended
Even where it is not legally required, PI insurance is a practical necessity for many professions:
- Accountants and tax advisers. A single piece of incorrect tax advice can result in significant financial loss for a client. Chartered Accountants Australia and New Zealand (CAANZ) requires members to hold PI cover.
- IT consultants and software developers. System failures, data breaches, and projects that do not deliver as specified can all trigger claims.
- Management consultants. Strategic advice that leads to poor business outcomes can result in negligence claims.
- Building designers and draughtspeople. Design errors can lead to construction defects and substantial rectification costs.
- Surveyors and valuers. An incorrect valuation can cause a buyer or lender to suffer significant financial loss.
- Marketing and advertising agencies. Claims can arise from intellectual property infringement, misleading content, or campaigns that fail to deliver contracted outcomes.
- Recruitment consultants. Negligent reference checks or misrepresentation of a candidate's qualifications can lead to claims.
- Health professionals. While medical malpractice has its own insurance category, allied health professionals (physiotherapists, psychologists, dietitians) should carry PI cover for advice-related claims that fall outside ACC.
If your work involves giving advice, making recommendations, designing solutions, or providing a service that clients rely on for financial or business decisions, you should have PI insurance. Full stop.
Professional Indemnity vs Public Liability: What Is the Difference?
These two types of insurance are frequently confused. They protect against fundamentally different risks.
| Professional Indemnity | Public Liability | |
|---|---|---|
| What it covers | Financial loss caused by your professional advice or services | Bodily injury or property damage caused by your business activities |
| Type of loss | Economic/financial | Physical (injury or property) |
| Example claim | An accountant's tax error costs a client $50,000 in penalties | A client trips over a cable in your office and breaks their wrist |
| Who needs it | Anyone providing professional advice, design, or consulting services | Any business with a physical presence or that interacts with the public |
| Typical trigger | Negligent advice, errors, omissions, breach of duty | Accidents, incidents, property damage |
| Policy basis | Usually claims-made | Usually occurrence-based |
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 vary significantly depending on your profession, annual revenue, claims history, and the limit of indemnity you choose.
Here are indicative annual premium ranges for common professions:
| Profession | Annual Revenue | Cover Limit | Indicative Annual Premium |
|---|---|---|---|
| Sole-trader consultant (management, marketing) | Under $200,000 | $500,000 | $500 to $1,200 |
| IT consultant or developer | $200,000 to $500,000 | $1,000,000 | $1,000 to $2,500 |
| Accountant (small practice) | $300,000 to $700,000 | $1,000,000 | $1,500 to $3,000 |
| Architect (small to mid practice) | $500,000 to $1,000,000 | $2,000,000 | $2,500 to $5,000 |
| Engineering firm | $1,000,000+ | $5,000,000 | $5,000 to $15,000+ |
| Financial advice firm | $500,000 to $1,000,000 | $2,000,000 | $2,000 to $5,000 |
These are estimates based on 2025/2026 market rates and will vary by insurer, practice area, and claims history.
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
This is one of the most important and least understood aspects of PI insurance. Most professional indemnity policies in New Zealand operate on a claims-made basis, not an occurrence basis.
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 is typically available for periods of one to seven years after you cease practising and costs a fraction of a standard annual premium.
How a PI Insurance Claim Works
Understanding the claims process helps you respond correctly if a situation arises.
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
These examples illustrate the types of claims that PI insurance covers in practice.
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 $1.2 million 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
Not all PI policies are equal. When comparing options, pay attention to these factors:
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.
If you are unsure about the right level of cover, an authorised financial adviser or specialist insurance broker can assess your exposure and compare policies across multiple insurers. This is particularly important for professions with complex risk profiles, such as architects, engineers, and financial advisers.
Check your business insurance needs with QuoteHub to connect with an adviser who can help you find the right PI cover for your practice.
Frequently Asked Questions
Is professional indemnity insurance a legal requirement in NZ?
It depends on your profession. For lawyers, financial advisers, real estate agents, and registered architects, PI insurance is either legally mandated or required by the relevant professional body. For other professions, it is not a legal requirement but is strongly recommended, and many clients and contracts will require it as a condition of engagement.
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. The cost of PI insurance, often as little as $500 to $2,000 per year for sole practitioners, 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.
Get matched with an adviser who can compare PI insurance options for your profession. QuoteHub connects you with authorised financial advisers 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 authorised financial advisers (FSP 712931) 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
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