Professional indemnity insurance for AAT members

Marsh Commercial is a professional indemnity (PI) specialist for accounting professionals and part of Marsh, a global leading insurance broker. We protect thousands of accountants, bookkeepers and accounting technicians across the UK with PI cover, hands‑on advice, and practical risk management. Our PI for AAT members is exclusive to Marsh Commercial and meets AAT minimum requirements – as well as offering you tailored enhancements and benefits.

Why PI matters for AAT members?

Professional indemnity insurance helps protect your practice and reputation from claims arising from alleged errors, omissions, negligence or breach of professional duty. It’s also a core requirement for many AAT‑licensed roles - having the right level of cover in place keeps you compliant and gives you peace of mind.

AAT insurance requirements (summary)

AAT sets minimum PI requirements that depend on firm structure and turnover. Key points to check:

• You must hold valid professional indemnity insurance while practising and licensed.
• Minimum cover levels depend on gross fee income and firm type (AAT guidance applies).
• Maximum cover generally capped at £1m where income thresholds apply.
• Policy features typically required include retroactive cover where needed, civil liability cover and “any one claim” basis.
• If you stop practising, run‑off cover is required to protect against claims made after services were provided.

What our PI includes

Our PI for AAT members brings clear core cover together with a range of member focused enhancements:

• Professional negligence / errors and omissions cover, including defence costs and legal expenses for covered claims.
• Civil liability protection and policies written on an Any One Claim basis where required.
• Retroactive cover options to protect work carried out before your policy start date.
• Run off cover to protect you after you cease practising.
• Flexible indemnity limits to match your turnover and regulatory needs (limits available up to required thresholds).
• Fidelity cover for losses arising from theft or dishonesty.
• Irrecoverable fees and disputed fee cover to help manage client fee disputes.
• Joint ventures cover for work carried out through collaborative arrangements.
• Court attendance costs to support you if you are required to attend legal proceedings.
• Public relations and crisis management support to protect your reputation in the event of a high profile issue.
• Optional add ons available: public liability, employers’ liability, cyber, legal expenses and office contents.

Hands on support and risk management

Marsh Commercial provides practical support throughout the life of your policy:

• Dedicated advisers offering friendly, practical guidance on cover, compliance and changes as your business develops.
• Risk management guidance and resources to help reduce exposure and strengthen controls.
• Support preparing evidence of cover for AAT licence applications and renewals.
• Access to helplines and PR advisers to get rapid specialist support when you need it most.

Clear, affordable pricing

Premiums for PI start from £19 per month. Pricing is designed to be competitive while matching cover levels to your needs, so you only pay for what’s right for you.

Free PI review

We offer a complimentary PI review to compare your current cover. We’ll confirm your limits are appropriate, point out any gaps or overlaps, and see whether Marsh Commercial can offer improved terms. PI insurers are competing more than in recent years, so now is a good time to get a comparative quote — you may be able to improve cover or reduce your premium.