Terms & Conditions

The IFA requires holders of a Practising Certificate to hold PII at not less than: minimum of £500,000 once fee income exceeds £250,000. The IFA's framework is closer to ACCA's banded approach than to ICAEW's formula-with-cap.

Key areas of risk for Accountants

The risk profile is different from a CIOT-only advisory boutique: high volume of low-value engagements, lower per-claim severity but higher claim frequency. PI structuring should reflect this — a relatively lower per-claim limit with a higher aggregate or reinstatement may be more appropriate than a flat any-one-claim policy. ATT requires six years of run-off and bet new betting sites uk 2026 reserves the right to suspend the MiP licence if PII evidence is not produced on demand. ATT mirrors CIOT structurally: 2.5 × fees, £100k floor, £1m practical minimum at £400k+ fees. Tax technician portfolios skew to frequency rather than severity — structure accordingly.

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The Association of Accounting Technicians licenses members in practice through its Licensed Accountant and Licensed Bookkeeper schemes. AAT is the largest UK accountancy body by membership and supervises a substantial number of small-practice principals. AAT requires every Licensed Member to hold PII at not less than £50,000 per claim as a baseline, with the limit scaled to gross fee income: AAT licensed members may undertake bookkeeping, financial accounts, management accounts, payroll, VAT, personal tax and limited company tax (where the member's licence covers it), and limited company accounts. AAT does not licence audit work — a member intending to perform audit must hold registration with a Recognised Supervisory Body (ICAEW, ICAS, CAI or ACCA). six years of run-off following cessation; notification within 14 days of cancellation, decline or material restriction; Worked example: A newly licensed AAT bookkeeper with first-year gross income of £18,000 must hold £50,000 minimum. The IFA also operates a member benefits scheme through which preferential PI terms are sometimes available — practitioners should benchmark against open-market quotes regardless, because the cheapest quote is not always the most appropriate cover. Six years of run-off is required.

Annual Fee Income Band (GBP)	Minimum Limit per Claim	Minimum Aggregate Limit	Excess/Deductible Guideline
Up to 100,000	100,000	1,500,000	1% of income or 2,500
100,001 - 500,000	500,000	3,000,000	1.5% of income
500,001 - 2,000,000	1,000,000	5,000,000	0.75% of income
Over 2,000,000	2,000,000	10,000,000	Negotiated, based on risk

IFA mirrors ACCA's banded approach: £100k floor, £500k at £250k of fees.

Can You Do Both ACA and ACCA?

The market floor for licensed-member PI is typically £600–£900 per annum for this profile — the minimum-premium dynamic in chapter 16 explains why. AAT runs a banded scale starting at £50k for the smallest practices. Scope is wide but excludes statutory audit. The Institute of Financial Accountants regulates members under its Practising Certificate framework. The IFA is also a recognised AML supervisor under the Money Laundering Regulations 2017. Member-scheme cover is one option, not the default. The Independent Certified Practising Accountants is a smaller body that operates a member scheme covering practice support and a group PI facility.

Type of Breach	Potential Disciplinary Action	Impact on Practice
No valid PII in place	Suspension of practising certificate; fines.	Cannot offer services to public.
Inadequate cover limits	Directed to rectify; possible conditions on licence.	Increased personal liability risk.
Failure to disclose claims	Investigation; potential finding of misconduct.	Policy may be voided; reputational damage.
Using an unapproved insurer	Required to switch provider; licence review.	Cover may not be recognised.

ICPA members in practice must hold PII at not less than £250,000 per claim as a baseline, with scaling to fee income (a multiple of fees similar to other bodies).

Work Experience: A Key Structural Difference

Continuing professional development records and PII evidence are typically requested together at the annual practising certificate renewal. Run-off is required for at least six years following cessation of practice, with the limit equal to the last live limit. ACCA recommends — though does not mandate — that audit firms maintain run-off for longer where the firm has signed Companies Act audits within the limitation window. Worked example: A sole-practitioner ACCA member with gross fee income of £180,000 must hold 2.5 × £180k = £450,000 — above the £100k floor and below the £500k band minimum. The next band starts at £200,001 of fees, when the limit jumps to £500,000 minimum.

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ACCA requires its members in practice to: Confirm PII compliance annually at practising certificate renewal; Disclose insurer details to ACCA on request; Notify ACCA of any decline, cancellation, void or non-renewal within 14 days. ACCA uses a four-band sliding scale, floored at £100k for the smallest practices and capped at £1.5m for the largest under the formula. Excess capped at 2% of gross fee income. Six-year run-off mandatory; Bye-Law 8 disciplinary risk for any breach. The Institute of Chartered Accountants of Scotland regulates members and firms operating north of the border, but its rule set applies UK-wide to ICAS members in practice.

8.2 Scope of AAT licence

The Public Practice Regulations set out the PII obligations. ICAS aligns broadly with ICAEW: the greater of 2.5 × gross fee income or £1.5 million, with the £3m cap on the formula for sub-£12m firms. Beyond that, "adequate and appropriate" cover is required. The ICAS excess cap mirrors ICAEW: lower of £30,000 per principal or 3% of gross fee income. Two Scots-law features should be on the underwriter's risk note: Scots law has a five-year prescriptive period for most obligations under the Prescription and Limitation (Scotland) Act 1973, but with delayed-discoverability provisions that can extend the practical exposure considerably. Members who use the ICPA group scheme have the minimum requirement met by default, but should always confirm the specific limit on their schedule. Group schemes — operated by ICPA and historically by other small bodies — bring administrative convenience but two underwriting trade-offs: The scheme rates the membership as a whole; an individual practice with a poor claims record may pay more than the pool average or be removed. Group schemes typically offer a narrow range of options. Practices with bespoke risks (R&D advisory, IHT planning, insolvency) may need to top up the scheme cover with excess-layer placement.

ACA vs ACCA: Quick Comparison

Failure to file or to advise of a filing deadline. Negligent advice on a tax-driven structure (EBT, contractor loan bet price boost schemes, certain R&D positions). Misadvice on residence and domicile (heightened risk since the 2024 statutory residence reforms). These claims often combine direct tax loss (the unpaid tax, interest, sometimes penalties) with consequential loss (forced sale of an asset, breakdown of a transaction). Heads of damage compound, and a £1m minimum can be eroded quickly by a single high-net-worth client matter.

13.2 What PI does in a tax enquiry

CIOT requires six years of run-off at the level of the last live limit. Worked example: A CIOT-regulated tax boutique with £900,000 of fees must hold at least 2.5 × £900k = £2.25m. The firm runs a single high-net-worth client with annual planning fees of £80,000 and a potential structure size of £4m. The minimum complies with CIOT, but is not "adequate" for the actual risk: the broker should recommend at least £5m to give headroom. CIOT requires 2.5 × fees with a £100k floor and a £1m practical minimum for mid-sized firms.

Is professional indemnity insurance mandatory for chartered accountants?

Tax claims combine direct and consequential loss — minima erode quickly on HNW work. The Association of Taxation Technicians sits alongside CIOT as the sister-body for tax practitioners. Its Members in Practice (MiP) rules require licensed members to hold PII at the same proportional structure as CIOT. a £1,000,000 minimum for firms above £400,000 of fees. A meaningful proportion of ATT MiPs operate as compliance and bookkeeping practitioners with a tax-return-heavy book of business. Watch out: group-scheme cover written through an unrated or lightly capitalised insurer is a financial-strength risk.

• 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

Always confirm the insurer's S&P / AM Best / Fitch rating and the FSCS-protection status before relying on the cover.

• Online portal submission of insurance certificates is mandatory
• Broker's letter of confirmation is an acceptable temporary proof
• ACCA may conduct random audits of PI insurance documentation
• Record keeping of policies and certificates for at least six years
• Changes in insurer or policy number must be reported promptly

ICPA operates a small-body group scheme with a £250k baseline and fee-multiple scaling. Group schemes are administratively simple but underwriting-restrictive.

• Minimum indemnity limit typically £50,000 for members in practice
• Cover must be provided by an insurer authorized in the UK
• Policy must cover civil liability from professional business activities
• Run-off cover required upon retirement or cessation of practice

Always confirm insurer financial strength and FSCS status.

• Consideration for higher limits based on client contracts or sectors
• Joint audits may require specific provisions in the PI policy
• Insured must disclose all material facts to the insurer
• Retroactive date is a critical policy feature to review
• Notification of circumstances clauses must be adhered to strictly

The "2.5 × fees" formula is so embedded in UK accountants' PI that it can obscure the underlying question: does the limit reflect the actual exposure?

Rating Factor	High-Risk Example	Lower-Risk Example	Impact on Premium
Services Offered	Insolvency, M&A advice	Bookkeeping, payroll	High for complex services
Claims History	Multiple past claims	Clean record	Significant increase with claims
Client Types	High-net-worth, listed companies	Small local businesses	Higher for complex clients
Risk Management	Poor file reviews, no engagement letters	Strong systems, CPD, quality control	Discounts for good systems

This chapter answers that question by reference to worked examples at five fee tiers. The 2.5 multiple emerged from historic claims data showing that, in aggregate, accountancy practices generated PI claims with average severity broadly equivalent to 2 to 3 times the annual revenue of the responsible firm.

PII Regulations

The 2018 amendments brought parts of the regime closer to England's Limitation Act framework, but differences remain. Scottish law applies joint and several liability among delinquent professionals somewhat differently from English law; counsel's advice is essential where a claim has both English and Scottish defendants. ICAS is a Recognised Supervisory Body for audit purposes. ICAS audit firms must hold PII that responds to audit work and must notify ICAS Audit Monitoring of any audit-related claim. The minimums apply uniformly to audit and non-audit firms; the standard expected on placement, however, is markedly higher for audit firms with quoted-company or substantial pension-scheme audits in their portfolio.

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Watch out: an ICAS firm registered with HMRC for AML supervision but not for audit still has a Public Practice Regulations obligation — the PI rule does not turn on whether the firm does audit work. ICAS minimum mirrors ICAEW: greater of 2.5 × fees or £1.5m, capped at £3m on formula. Scots-law prescription rules differ from English limitation — this affects long-tail claim profile. Audit-registered ICAS firms face supervisory monitoring of claim notification. The Chartered Institute of Taxation regulates Chartered Tax Advisers and the firms they own or principal.

Who does professional indemnity insurance cover?

CIOT publishes its Professional Rules and Practice Guidelines (PRPG) and a specific PII Regulations section. CIOT requires its members in practice to hold PII at not less than: a minimum floor of £100,000 for the smallest sole-practitioner practices, and a tapering structure that brings firms above £400,000 of fees to a £1,000,000 minimum. Many tax-only firms hold both Chartered Tax Adviser (CIOT) members and Taxation Technician (ATT) members. The CIOT/ATT joint guidance treats the firm-level requirement as set by the highest body; in practice, where any principal is a CIOT member, the CIOT rules apply firm-wide. CIOT-regulated tax firms see a recurring pattern of claim types that drive limit-setting: Mis-application of a tax statute (capital allowances, EIS/SEIS, IHT business property relief).