Is Professional Indemnity Insurance Compulsory?

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PII frequently asked questions

A sole practitioner retiring should budget for: a one-off run-off premium of £3,500 – £15,000 depending on practice profile; or six annual payments averaging 60–80% of the live premium. Watch out: if the practitioner sells goodwill rather than ceases, the run-off may transfer to the acquirer's policy — but only if the acquirer's PI is structured to take over the prior-acts liability. This is a specific clause that has to be requested; it does not happen automatically. The choice between a body-sponsored group scheme (ACCA, ICPA, AAT schemes) and open-market placement turns on: Premium: schemes are sometimes cheaper at the smallest tier; open-market is usually cheaper above £100k of fees. Cover: schemes have standard wordings; open-market can be tailored.

Office Break In and Equipment Loss

Service: scheme claims handling is volume-driven; open-market with a broker offers a more bespoke claims experience. Renewal stability: schemes' rates can shift sharply if the underlying scheme insurer pulls back. A minimum-premium floor of £500–£900 dominates the smallest end of the market. Sole-practitioner premium is shaped by minimums, channel costs and first-year unknowns. Run-off should be budgeted for at 1.5–3× last live premium.

Best practice for a smooth transaction

What is the absolute minimum PI cover I must hold as a UK accountant? ICAEW and ICAS set 2.5 × gross fee income or £1.5m, whichever is the lower (capped at £3m on the formula); ACCA uses a banded scale starting at £100k for the smallest practices; CIOT, ATT and IFA use a similar £100k–£1m structure; AAT licensed members start at £50k. A multi-bodied firm complies with the highest applicable standard. Is PI cover legally compulsory or only regulatory? PI is regulatory, not statutory, for most accountants. Always read it alongside the current published rules of your accountancy body and your individual policy wording. Professional Indemnity placement should be bet betting app offers uk undertaken with a broker authorised under the FCA's Insurance Distribution rules.

How to Choose: ACA or ACCA?

Audit firms hold PI under the audit registration rules; the FCA can mandate PI for firms with regulated activity. The practical effect is the same — without PI, the practitioner cannot lawfully hold a practising certificate. Does my PI cover HMRC penalties and interest? PI does not cover fines or penalties imposed on the practitioner by HMRC, FRC, or any regulator (uninsurable as a matter of UK public policy). It does generally cover the client's damages where those damages include penalties or interest the client suffered because of the accountant's negligence.

2.2 The "highest-bar" principle

What is "run-off" cover and how long do I need it? Run-off is PI cover that continues after a firm ceases trading, covering claims that come in for work done before cessation. Minimum: 6 years for ACCA, CIOT, ATT, AAT, IFA; minimum 2 years for ICAEW (industry standard 6 years). For audit and insolvency work, 10-15 years is prudent. I'm an ICAEW firm with £1.6m of fees — what's the minimum?

The difference in conditions clause

So £3m is the minimum; "adequate" beyond £3m needs justification. What if I'm a member of both ICAEW and CIOT? You comply with the highest applicable standard. ICAEW's formula is usually higher than CIOT's at the firm sizes where this is a live question. Can I take a higher excess to reduce premium? The next scheduled review is November 2026. Apex Insurance Brokers Ltd. Authorised and regulated by the Financial Conduct Authority, FRN 724952. Registered in England and Wales, Companies House number 07014570. This guide is technical reference material, not regulated advice. The guidance on this site is based on our own analysis and is meant to help you identify options and narrow down your choices.

11. Fee-multiple sizing: ICAEW, ACCA and the worked examples

Modern PI usually covers the liability arising from a cyber-driven failure of professional services. It does not typically cover ransom, system rebuild, business interruption or notification costs — those need a standalone cyber policy. Can I place PI outside the ICAEW Participating Insurer list? Cheaper non-participating quotes are typically not a permitted alternative under ICAEW PII Regulations. What happens if my PI insurer fails?

6.4 Run-off

PI policies written by UK-authorised insurers benefit from FSCS protection (currently 90% of the claim without limit for compulsory insurance, and 90% of claim without limit for PI for individuals and small businesses for professional indemnity claims). Always confirm FSCS bet uk sports betting sites list eligibility for your specific cover. I'm retiring and selling my practice — does the buyer's PI cover my prior work? Only if the buyer's PI is structured to take over prior-acts liability, which is a specific clause that must be negotiated. The default is that you continue to need run-off cover.

Business Use Car Insurance for Accountants

Sale price negotiations should include who funds the run-off. Author: Apex Insurance Brokers Ltd — written by the Apex commercial broking team. Read more on the Apex team page. About Apex Insurance Brokers Ltd Apex Insurance Brokers Ltd is a UK commercial insurance broker based in Bristol, specialising in Professional Indemnity for accountants, solicitors, surveyors and the wider professional-services sector. We are authorised and regulated by the Financial Conduct Authority — FRN 724952. We do not advise or tell you which product to buy; undertake your own due diligence before entering into any agreement. The amount of insurance an accountant needs depends on whether or not they're a chartered accountant, with which professional body they hold membership and how much they collect in fees. Let's look at how these factors affect the limit of professional indemnity insurance (PII) an accountant needs.

• Trustee appointments often require specific PI insurance verification
• Insolvency practitioners have separate, statutory PI requirements
• Public sector appointments may have different insurance stipulations
• Working overseas may necessitate additional local insurance

Rated 4.7 out of 5 stars on Reviews.co.uk Chartered accountants must have a professional indemnity insurance (PII) policy, and this policy must meet certain requirements.

Do I need insurance to join a professional body?

Your regulator caps the excess (ICAEW: lower of £30k per principal or 3% of gross fees; ACCA: 2% of gross fees). Within that ceiling, you can negotiate — but the arithmetic of premium saving versus self-insurance retention bet uk gambling sites list rarely favours sole practitioners. Does R&D advisory get treated differently? Underwriters now scrutinise R&D advisory specifically, often impose sub-limits, exclude contingent-fee work, or rate it heavily. Disclose accurately at renewal — non-disclosure voids the cover for an R&D claim.

The Right Level of Cover Beyond the Minimum?

No — fines and penalties imposed on the firm are uninsurable as a matter of UK public policy. FRC defence costs and investigation costs are typically insurable, and these are often the larger figure. What is a Liability Limitation Agreement (LLA)? An LLA is permitted under s.534-538 of the Companies Act 2006 and allows an audit client and auditor to agree a cap on auditor liability for one financial year. It must be shareholder-approved, "fair and reasonable" and disclosed.

Employers’ liability for accountants

Common on private audits, rare on listed. Do I need both Fee Protection (Tax Investigation) Insurance and PI? Fee Protection pays the professional fees of running an HMRC enquiry. PI pays damages where the practitioner's work was negligent. They are complementary; neither replaces the other. For starters, PII for a chartered (or chartered certified) accountant must be considered 'qualifying insurance'. Underwriters issuing qualifying insurance agree to abide by certain minimum terms on accountant PII, to make sure all chartered accounts maintain a certain standard of protection. Next, chartered accountants have to abide by certain minimum limits of insurance as stipulated by their accountancy body membership (e.g., ICAEW, ACCA).

The required amount of professional indemnity dictated by these bodies is linked to fee income (both annual fee income and largest client fee income).

• Coverage must extend to all employees and subcontractors
• Exclusions for fraud or dishonesty are typically permissible
• Defence costs are usually included within the limit of indemnity
• Insurer must have a claims handling office in the UK

BUT many accountancy businesses need to hold more depending on their fees and the work they do. Let's have a look at the minimum PII requirements as stipulated by the Institute of Chartered Accountants in England and Wales (ICAEW) and the Association of Chartered Certified Accountants (ACCA), since these are the two largest accountancy bodies in the UK. Under the ICAEW Professional Indemnity Insurance Regulations (effective September 2024), the previous £100,000 minimum has been abolished. For 2026, most chartered accountancy firms are now required to maintain a minimum limit of indemnity of £2 million for any one claim and in the aggregate. However, for smaller practices with a gross fee income of less than £800,000, the minimum limit is calculated as two and a half times the firm's gross fee income, subject to a absolute minimum of £250,000. Additionally, firms must ensure their policy excess does not exceed the higher of £3,000 or 3% of their gross fee income.

• New practices must secure insurance before commencing work
• ACCA provides a list of approved insurance brokers for guidance
• The requirement applies to all ACCA members offering professional services
• Certain non-practicing roles may be exempt from mandatory PI
• Scope of services offered dictates the necessary level of cover

As of 2026, the ACCA has simplified its requirements into two primary income bands, having increased the absolute minimum limit from £50,000 to £100,000. For firms with a total income below £600,000, the required PII limit is the greater of two and a half times the firm's total income or £100,000. For firms with a total income of £600,000 or more, the minimum limit of indemnity is now fixed at £1.5 million. Note that the old '25 times the largest fee' multiplier has been removed from the standard calculation to simplify compliance. Accountants who are not chartered technically don't have any obligation to buy PII.

• Review policy exclusions for cyber liability and data breaches
• Consider standalone cyber insurance as a supplement to PI
• Fidelity cover (for employee theft) is often a separate policy
• Legal expenses insurance can be a valuable addition
• Policy excess (deductible) should be set at an affordable level
• Ensure the policy territory is worldwide for international clients
• Negotiate a waiver of subrogation for key client contracts

That said, it is widely recommended for all accountants to have professional indemnity insurance. To figure out how much you need, you can still follow the guidance issued by the ICAEW and ACCA or speak with a specialist broker or agent regarding limits of insurance. We've calculated the minimum PII limits for accountants of various sizes according to ACCA and the proposed new ICAEW requirements in the table below. As you can see, we varied both the total annual fees and the largest fees earned from one client in the past year (which factor into the ACCA calculations). While these figures show a range of accountancy business sizes, if your business size is not displayed here then you can use the formulas shown in the previous section to calculate what you would need.