Professional Indemnity Insurance in Australia (2026): Who Needs It, How It Works and What It Costs

Professional indemnity (PI) insurance protects you when a client claims your advice, design or service caused them a financial loss. For accountants, bookkeepers, engineers, architects, IT consultants, health practitioners, lawyers and financial advisers, it's often the policy that keeps a single mistake from ending the business. This guide is for Australian professionals and consultants — sole practitioners especially — and covers which professions must hold PI in 2026, how claims-made policies, retroactive dates and run-off cover work, how to choose a limit, what drives the premium, how tax and stamp duty apply, and worked examples in Australian dollars.

Quick answer

Professional indemnity insurance covers claims that your professional advice or services caused a client loss, including legal defence costs. It's compulsory for some professions — tax and BAS agents, registered health practitioners, solicitors, AFS licensees and, in most states, architects — and widely demanded by client contracts for everyone else.

• Tax and BAS agents: minimum A$250,000 to A$1 million depending on turnover

• Policies are usually claims made and notified — the policy in force when the claim arrives responds

• Keep cover continuous and buy run-off cover when you stop practising

• APRA data puts the average PI premium per risk at about A$2,286 (Sept 2025)

• Premiums are tax deductible; GST credits apply to the premium, not the duty

What professional indemnity insurance covers

business.gov.au describes PI as cover for the cost of legal action over your professional advice or services, including mistakes, neglect or breaches of contract that cause a client loss. The Insurance Council of Australia puts it the same way: the policy protects you against claims of negligence or breach of duty arising from an act or omission in your professional work. Typical claims include an accountant missing a lodgment deadline that triggers penalties, an engineer's calculation error that requires rework, a software consultant's recommendation that causes data loss, or a marketing agency publishing material that breaches someone's rights.

A policy usually pays the compensation you're liable for and your legal and defence costs, up to the limit. Some policies include defence costs inside the limit; others pay them on top. That matters: a long-running dispute can consume a large share of a A$1 million limit before any damages are paid.

The Insurance Council lists what PI generally won't cover: deliberate or fraudulent acts, criminal conduct, claims arising from circumstances you knew about but didn't disclose, systemic failures and claims arising after a run-off period ends when a firm is insolvent. It also won't cover physical injury or property damage from your negligence — that's public liability — or your own losses from a cyber attack, which need cyber insurance.

PI and the policies it's often confused with

Policy	Covers	Typical trigger
Professional indemnity	Client's financial loss from your advice or service	Negligent advice, design error, missed deadline
Public liability	Injury or property damage to third parties	Client trips in your office
Management liability	Claims against directors and managers	Employment dispute, regulator investigation
Cyber	Your own and third-party cyber losses	Ransomware, data breach
Fidelity / employee dishonesty	Theft by staff	Bookkeeper misappropriates funds

Professional indemnity

Covers

Client's financial loss from your advice or service

Typical trigger

Negligent advice, design error, missed deadline

Public liability

Covers

Injury or property damage to third parties

Typical trigger

Client trips in your office

Management liability

Covers

Claims against directors and managers

Typical trigger

Employment dispute, regulator investigation

Cyber

Covers

Your own and third-party cyber losses

Typical trigger

Ransomware, data breach

Fidelity / employee dishonesty

Covers

Theft by staff

Typical trigger

Bookkeeper misappropriates funds

Which professions must hold PI

PI is compulsory where a regulator makes it a condition of registration or a licence. The main examples:

• Tax and BAS agents. Holding PI insurance that meets the Tax Practitioners Board's requirements is a condition of registration. New agents must tell the TPB how they meet the requirements within 14 days of being notified that registration was granted, and show compliant cover again at each renewal. Minimum cover depends on turnover (see the table below).
• Registered health practitioners. Ahpra's registration standard requires every registered practitioner who practises in any capacity to have PI arrangements covering all of their practice, and to declare it at initial registration and every renewal. Employed practitioners are often covered by their employer, but self-employed physiotherapists, psychologists, dentists and others need their own.
• Solicitors. The Law Society of NSW explains that the Legal Profession Uniform Law requires solicitors to hold or be covered by an approved insurance policy before practising in NSW, available from Lawcover. Other states have their own approved schemes.
• Financial services licensees. Section 912B of the Corporations Act requires AFS licensees that provide services to retail clients to have compensation arrangements; ASIC's Regulatory Guide 126 explains how PI insurance usually meets this.
• Architects and veterinarians. business.gov.au says architects must obtain PI before operating in most states, and veterinarians in some states.

Outside these regulated groups, contracts do the work. Government departments, councils, builders and corporate clients routinely require consultants to hold a stated PI limit — often A$1 million to A$10 million — before signing. The Insurance Council's 2026 submission criticised some government contracts for demanding limits far above the actual risk, despite 2023 changes to the Commonwealth Procurement Rules intended to make insurance requirements proportionate. If a requirement looks excessive, it's reasonable to ask the buyer to reduce it.

Claims made, retroactive dates and run-off cover

PI works differently from most business insurance, and misunderstanding it is the most expensive mistake professionals make. The TPB's guidance explains that PI policies are usually claims made and notified policies: to trigger cover, the claim must be made against you and reported to the insurer during the policy period. The policy that responds is the one in force when the claim arrives — not the one you had when you did the work.

Two features follow from that:

• Retroactive date. A claims-made policy covers work done after its retroactive date. If you've held PI continuously, your retroactive date should go back to when your first policy started; the TPB requires a tax practitioner's new policy to carry over the earlier of the previous policy's retroactive date or the start of the first continuous policy. If you switch insurers and accept a new retroactive date, past work may be uninsured.
• Run-off cover. When you retire, sell the practice or close the company, claims about past work can still arrive for years. Run-off cover keeps a policy in place for those late claims. The TPB recommends run-off cover for agents who stop providing services and notes it isn't always easy to buy, so plan it before you wind down.

A third rule: notify circumstances. If you become aware of something that might lead to a claim — a client complaint, an error you've spotted — tell the insurer during the policy period. Most policies then treat any later claim as falling under that policy, even if it arrives after renewal. Holding back is risky: claims from known but undisclosed circumstances are a standard exclusion.

How a claims-made PI policy responds

Step 1

Work done after retroactive date

Step 2

Client alleges loss

Step 3

Claim made in policy period

or circumstance notified earlier

Step 4

You notify insurer promptly

Step 5

Policy in force now responds

How much cover do you need?

Start with the legal minimum if one applies, then the highest contract requirement, then your realistic worst case. For tax and BAS agents, the TPB sets the floor by turnover — fees for services in the previous financial year, or a reasonable estimate if you're new:

The TPB also caps the excess: for most registered tax practitioners it shouldn't exceed 4% of turnover, unless 4% of turnover is under A$1,000, in which case the excess can be up to A$1,000. Tax agents with a tax (financial) advice services condition follow different rules tied to their AFS licensee's cover.

For other professions, think about the size of the transactions you influence. A bookkeeper reconciling a café's accounts has a smaller worst case than an engineer certifying a multi-storey building or an adviser recommending a client's retirement investment. A limit that's fine on day one can become inadequate as your clients grow.

Professional standards schemes can help. Members of associations with an approved scheme — many accounting, legal, engineering and valuation bodies have one — have their civil liability capped at the scheme's limit, provided they hold insurance at the required level and tell clients about the limitation. The Professional Standards Councils explain that the cap generally doesn't apply to claims for death or personal injury, fraud or dishonesty, or breach of trust.

What PI costs in 2026

There's no official price list. APRA's quarterly statistics, as cited by the Insurance Council in March 2026, show the average PI premium per risk rose from A$2,116 in March 2013 to a peak of A$8,503 in June 2022, then fell back to about A$2,286 by September 2025. Those averages include large firms, so a sole practitioner usually pays less. Broker price guides published in 2026 suggest many low-risk sole practitioners pay a few hundred dollars to around A$1,500 a year for A$1 million of cover. Treat all of these as estimates.

The market has softened. The Insurance Council says premium rates in the first half of 2025 ranged from flat to 15% lower than in 2024, after a hard market from 2017 to 2023 in which design engineers and financial advisers faced the steepest increases and tightest cover. Professionals with poor claims histories or weak risk controls haven't shared fully in the relief.

PI market snapshot

A$2,286

Average premium per risk

APRA data, Sept 2025 quarter

A$8,503

Peak average premium

June 2022

0% to −15%

Rate movement H1 2025

vs 2024, per Insurance Council

A$1 million

Top TPB minimum

Turnover over A$500,000

What moves your own premium: your profession and the type of work (design and investment advice cost more than bookkeeping), fee income, the size and type of clients, claims and complaints history, risk management such as engagement letters and file reviews, the limit and excess, and whether defence costs sit inside or on top of the limit. Stamp duty and GST are added on top. In NSW, occupational indemnity insurance is exempt from duty for CGT small businesses with turnover under A$2 million if you make the declaration; in Victoria, business insurance duty is 7% in 2026–27 and falling.

Worked examples in A$

Premiums below are assumptions for illustration, not quotes.

1. A home-based BAS agent in Adelaide. Fees last year were A$60,000. That's tier 1, so she needs at least A$250,000 of cover including defence costs. Her maximum excess is 4% of A$60,000, which is A$2,400. Suppose the premium is A$650; she deducts it as a business expense and claims the GST credit on her BAS.

2. A growing tax practice in Brisbane. Turnover reaches A$650,000, crossing into tier 3. At renewal the principal must lift cover to at least A$1 million, and the excess must stay within 4% of turnover (A$26,000) — although a lower excess is usually sensible.

3. An IT consultant in Sydney trading through a company. A government agency contract requires A$5 million of PI and A$20 million of public liability. The policy must be in the company's name. Because the company's turnover is under A$2 million, it declares itself a CGT small business so no NSW duty applies to the PI and public liability sections.

4. A self-employed physiotherapist in Perth. Ahpra registration requires PI arrangements, and he declares them at each annual renewal. His clinic also needs public liability for patients who might slip in the waiting room. If he takes on contractor physios, each needs their own PI unless the clinic's policy expressly covers them.

5. A retiring engineer in Hobart. She closes her practice in June 2027. Her last annual policy ends on 30 June 2027. A client discovers a defect in 2029 and sues. Without run-off cover, there's no policy in force to respond. With run-off cover bought at closure, the claim is covered up to the run-off limit.

Disclosure, claims and complaints

PI is business insurance, so the full duty of disclosure in section 21 of the Insurance Contracts Act 1984 still applies when you apply and renew: you must tell the insurer everything you know, or a reasonable person in your position would know, is relevant. The lighter "reasonable care" duty introduced in 2021 applies only to consumer policies. Proposal forms ask about past claims, complaints and circumstances that might lead to a claim — answer fully.

When a claim arrives, don't admit liability, offer compensation or negotiate with the client yourself. The TPB notes that policies may include a term prohibiting you from admitting liability. Forward the letter to your insurer or broker, keep your file intact, and let the insurer appoint lawyers.

Most PI insurers subscribe to the General Insurance Code of Practice, which commits them to decide claims within 4 months in most cases and complaints within 30 calendar days. Small businesses can escalate an unresolved complaint to the Australian Financial Complaints Authority (AFCA) free of charge.

When a client complaint lands

1. 1

   Don't admit liability or promise a refund

   Acknowledge the complaint politely and say you're reviewing it.

2. 2

   Notify your insurer or broker straight away

   Even if it's only a circumstance that might become a claim.

3. 3

   Preserve your records

   Engagement letter, file notes, emails, versions of the work.

4. 4

   Follow the insurer's directions

   The insurer usually controls the defence and any settlement.

5. 5

   Review what went wrong

   Fix the process so it doesn't recur — insurers ask at renewal.

Tax, GST and structure

The ATO lists professional indemnity premiums among the operating expenses a business can generally deduct in the year they're incurred. Small businesses paying a year in advance can usually deduct the whole premium immediately if the period of cover is 12 months or less and ends by the end of the next income year. If you're registered for GST, claim the GST in the premium (excluding duty) as a credit — our GST guide explains the BAS labels.

A company structure limits some business debts, but it doesn't shield a professional from personal liability for their own negligent advice — clients often sue the individual as well as the company. That's why the policy should name the company and its principals and employees as insureds. Our business structures guide covers the wider trade-offs.

Recent changes to know about

• Softer market. Average premiums per risk have fallen back to around 2013 levels after the 2017–2023 hard market, so it's worth testing the market at renewal.
• TPB guidance updated. The TPB last updated its PI guidance statement on 30 April 2026; check it before each renewal.
• Parliamentary inquiry. Parliament's small business insurance inquiry, which covers PI affordability and availability, is due to report on 27 October 2026.
• Victorian duty. Business insurance duty in Victoria fell to 7% from 1 July 2026 and will reach zero from 1 July 2033.

Common mistakes

• Letting cover lapse. A gap of even a few weeks can reset your retroactive date and leave past work uninsured.
• Not notifying circumstances. If you knew and didn't tell the insurer, the eventual claim may be refused.
• Under-insuring as you grow. Re-check limits against new contracts and the TPB tiers every year.
• Forgetting run-off. Budget for it before you retire or sell.
• Relying on an employer's policy for side work. Freelance work outside your job usually isn't covered.

Official links

• business.gov.au — Types of business insurancePI, public liability and other policies
• Tax Practitioners Board — Professional indemnity insuranceMinimum cover, excess and renewal rules
• Ahpra — PII registration standardHealth practitioners
• ASIC — RG 126 compensation arrangementsAFS licensees
• Professional Standards CouncilsSchemes that cap professional liability
• ATO — Deductions for other operating expensesPremiums are deductible
• ABLIS — licence requirements by tradeCheck if your licence needs PI

Next steps

Check whether your registration body or licence sets a PI minimum, collect the PI clauses from your client contracts, and choose a limit that meets the highest of them. Confirm your retroactive date at every renewal, notify any circumstance as soon as you know of it, and plan run-off before you stop practising. Then price the premium into your fees with the hourly rate calculator, and see our guide to business insurance in Australia for the other policies a professional practice usually needs.

This is general information, not legal or tax advice — confirm on the official source or with a professional.

Frequently asked questions

Is professional indemnity insurance compulsory in Australia?

For some professions, yes. Registered tax and BAS agents must meet the Tax Practitioners Board's PI requirements, registered health practitioners must have PI arrangements under AHPRA's registration standard, NSW solicitors must be covered by an approved policy, AFS licensees need compensation arrangements under the Corporations Act, and architects need cover in most states. Many other professionals need it because client contracts demand it.

What's the difference between professional indemnity and public liability?

Professional indemnity covers claims that your advice, design or service caused a client financial loss — a wrong tax lodgment, a design error, a missed deadline. Public liability covers injury to people or damage to property caused by your negligence. A consultant visiting client offices often needs both, because a trip hazard and a bad recommendation are different risks.

How much does professional indemnity insurance cost?

It varies widely by profession and limit. APRA statistics cited by the Insurance Council put the average PI premium per risk at about A$2,286 in the September 2025 quarter, down from a peak of A$8,503 in June 2022. Broker guides suggest many low-risk sole practitioners pay well under A$1,500 a year for A$1 million of cover. Treat these as estimates and get quotes.

What is run-off cover?

PI policies are usually 'claims made and notified', so they respond only to claims made and reported while a policy is in force. If you retire, sell or close your business, a client can still sue later over past work. Run-off cover keeps protection in place for those late claims for a set period after you stop practising.

How much PI cover do tax and BAS agents need?

The TPB sets minimums by turnover: A$250,000 for turnover up to A$75,000, A$500,000 for turnover up to A$500,000, and A$1 million above that, each including legal and defence costs. The excess generally can't exceed 4% of turnover, or A$1,000 where 4% would be lower.

Is professional indemnity insurance tax deductible?

Yes. The ATO lists professional indemnity premiums among the operating expenses a business can generally deduct in the year they're incurred. GST-registered businesses can also claim a GST credit for the GST in the premium (not the stamp duty part). Paying a year in advance is usually deductible immediately for small businesses under the 12-month rule.

Sources & verification

Figures on this page were checked against the sources below when it was last reviewed on 13 October 2026. Each rate and limit is stored once with its own official source and review date, and official update channels are monitored daily so changes are picked up. How we verify

1. 1.Types of business insurance — business.gov.au (Australian Government) · accessed 13 October 2026
2. 2.Professional, scientific and technical services industry — business.gov.au (Australian Government) · accessed 13 October 2026
3. 3.TPB(GS) 06/2010 Professional indemnity insurance for registered tax and BAS agents (last updated 30 April 2026) — Tax Practitioners Board · accessed 13 October 2026
4. 4.Professional indemnity insurance arrangements — registration standard — Ahpra and National Boards · accessed 13 October 2026
5. 5.Professional indemnity insurance (NSW solicitors) — Law Society of NSW · accessed 13 October 2026
6. 6.RG 126 Compensation and insurance arrangements for AFS licensees — ASIC · accessed 13 October 2026
7. 7.Limited liability explained — Professional Standards Councils · accessed 13 October 2026
8. 8.Small business insurance — professional indemnity insurance (submission, 6 March 2026) — Insurance Council of Australia · accessed 13 October 2026
9. 9.Deductions for other operating expenses — Australian Taxation Office · accessed 13 October 2026
10. 10.Insurance duty — small business exemption — Revenue NSW · accessed 13 October 2026
11. 11.Insurance policies — current rates — State Revenue Office Victoria · accessed 13 October 2026
12. 12.Small business insurance inquiry — Parliament of Australia · accessed 13 October 2026
13. 13.No more duty of disclosure for consumer insurance contracts — Hall & Wilcox (law firm commentary) · accessed 13 October 2026
14. 14.How much does professional indemnity insurance cost? — Upcover (broker price guide) · accessed 13 October 2026