Accountants Professional Indemnity Insurance
For most businesses professional indemnity is optional. For an accountant it is usually a condition of being allowed to practise, and the minimum limit is set by your professional body rather than by you.
Compulsory, And Rated On What You Advise
That changes the conversation. The question is not whether to buy it, it is whether the policy you hold still matches the practice: the services you have added, the clients you have taken on, and how far back the cover reaches. Most accountancy claims arrive years after the work, which makes the retroactive date and continuity more important than the premium.
The other half, which is newer and growing fast, is cyber. A practice holds client financial records, payroll data and authority to move money, and business email compromise is the attack most likely to hit it.
What Accountants Insurance Covers
Professional indemnity
Claims that your advice, calculation or filing cost a client money: a missed deadline producing a penalty, a tax position that does not hold, a set of accounts relied on in a transaction. Pays the defence as well as the settlement, and the defence is often the larger part.
Run-off cover
Keeps the policy answering for work already done after you stop practising, retire or sell. Professional bodies commonly require it for a stated period, and without it every past year is unprotected the day you close.
Cyber and crime
Breach response, ransomware and the funds transfer exposure. A practice has client data and payment authority, which makes business email compromise the realistic attack rather than a dramatic one.
Office contents and business interruption
The premises side. Modest next to the professional exposure, and still the thing that stops you working if the office floods.
Employers' and public liability
Staff at work and visitors to the office. Employers' liability is compulsory from the first employee at a £5 million statutory minimum.
Legal expenses
Employment disputes, debt recovery on unpaid fees, and representation in a regulatory or disciplinary matter, which professional indemnity does not cover.
Where The Cover Stops
Wordings differ between insurers, so treat these as the usual position rather than as universal fact. Where one of them matters to you, it is worth checking on your own schedule before you need to.
The retroactive date
Professional indemnity responds to when a claim is made, not when the work was done. A new policy often only covers work carried out after the date you first took cover, so switching insurer without carrying the retroactive date across can quietly remove years of past work from protection.
Gaps in cover
Because it is claims made, a lapse of even a month means a claim arriving in that month, about work from five years ago, has nothing to respond to. Continuity matters more than the limit.
Known circumstances
Anything you were aware of, or ought to have been aware of, before inception is excluded. A client complaint already received cannot be insured afterwards, which is why notifying circumstances promptly is part of the discipline.
Services outside the declared list
Cover follows the services described. Adding corporate finance, audit, probate or regulated financial advice changes the risk materially, and a policy describing a bookkeeping practice will not sit comfortably over a tax dispute.
Fines and penalties
A penalty imposed on your client may be recoverable as their loss. A regulatory fine imposed on you is not insurable, although representation at a disciplinary hearing often is under legal expenses.
Your Institute Sets The Floor, Not The Right Answer
The professional bodies set minimum terms, and the minimum is a floor rather than a recommendation. The limit that actually suits a practice depends on the size of the losses its mistakes could cause, which is driven by client size rather than by your fee income.
A small practice with one large corporate client carries an exposure out of all proportion to its turnover, because the loss that client could suffer from a mistake is theirs, not scaled to what you charged. Fee income is the wrong anchor, and it is the one most commonly used.
Check two other things on the schedule while you are there. Whether defence costs sit inside the limit or outside it, because a limit that has to absorb them is smaller than it looks. And whether the limit is any one claim or aggregate, which on a practice with many similar clients is the difference between one protected claim and all of them sharing a pot.
Why Continuity Matters More Than Price Here
Accountancy has a long claims tail. A tax position taken in 2026 may not be challenged until 2031, and a set of accounts relied on in a sale may not be questioned until the buyer finds something two years later.
That makes professional indemnity a cover you hold continuously rather than buy each year. The policy that responds is the one in force when the claim is made, with a retroactive date reaching back to cover the work. Saving a few hundred pounds by moving insurer is a false economy if the retroactive date is not carried across, and that is a question to ask before you move, not after.
Run-off is the same principle at the other end. When you retire or sell, claims keep arriving, and cancelling on your last day leaves every year of work exposed. Professional bodies generally require run-off for a stated period and buyers of practices ask about it as a matter of course.
The Cyber Exposure Is Specific To Practices
An accountancy practice is an unusually attractive target because of what it holds and what it can do: client financial records, payroll data, bank details, and often the authority to initiate payments.
The realistic attack is not dramatic. It is business email compromise. Somebody gets into an email account, watches a payment conversation, then intervenes with changed bank details at exactly the right moment. The money leaves willingly. Check the funds transfer sub-limit on any cyber policy specifically, because it is routinely far below the headline figure and it is the loss most likely to happen.
Multi-factor authentication on email is now a condition on many cyber wordings rather than a discount, and for a practice handling client money it is the single cheapest control available.
How To Choose A Broker For An Accountancy Practice
Professional indemnity for accountants is widely available, which makes the differences structural rather than price. We are an FCA regulated broker and will not tell you we are the best choice. These are the things that decide it, and you can hold any broker to them including us.
Do they know your body's minimum terms?
A broker placing accountants regularly knows what your institute requires on limit, run-off and excess. One who asks you to tell them is learning on your practice.
Can they state your retroactive date without looking?
It is the single most consequential thing on the schedule and the thing most often lost in a move. If nobody has checked it, nobody has read the policy.
Are defence costs inside or outside the limit?
On a contested claim the defence can rival the settlement. A broker who volunteers this understands what the limit is actually buying.
Have they asked what services you have added?
Corporate finance, probate, audit and regulated advice each change the risk. A renewal rolled forward on last year's description is a policy describing a practice you may no longer be.
Is cyber quoted, with the funds transfer sub-limit stated?
Business email compromise is the realistic attack on a practice. A cyber quote without that sub-limit named has not addressed it.
Factually, we check the retroactive date when a practice moves to us and say plainly if historic years would be exposed, we quote on your body's minimum terms as a floor rather than a target, and we name the funds transfer sub-limit when we quote cyber rather than leaving it in the wording. We are a broker, so it goes to several insurers rather than one.
We do not publish a starting premium for accountancy, because our book does not hold enough policies in the profession to support a figure we could stand behind.
What Moves The Price
Every policy is priced on the business behind it. These are the things that move the premium:
- The services you offer, and whether any are regulated
- Annual fee income and the size of your largest client
- The limit of indemnity your body or clients require
- Whether defence costs sit inside or outside the limit
- The retroactive date and how many past years are covered
- Claims, complaints and circumstances notified in six years
We are a broker, so we take it to several insurers rather than quoting one. Call 02382 000820 for a quote.
What We Need To Quote
- Your professional body and its minimum terms
- A full list of services, including anything added recently
- Annual fee income and your largest client by fee
- The retroactive date on your current policy
- Any claims, complaints or circumstances in six years
- Whether you need run-off for a practice that has closed
Cover that often goes with this
The gaps we most often find sitting next to this policy.
- Professional indemnityHow claims made cover, retroactive dates and run-off work in general.
- Cyber insuranceBusiness email compromise and the funds transfer sub-limit.
- Legal expensesDisciplinary representation and recovering unpaid fees.
Common questions
Is professional indemnity insurance compulsory for accountants?+
For members of the main professional bodies, yes, as a condition of holding a practising certificate, and the body sets minimum terms including a minimum limit. Treat that minimum as a floor rather than a recommendation: the limit you actually need depends on the size of loss a mistake could cause your largest client, which is driven by client size rather than by your fee income.
What is a retroactive date and why does it matter for accountants?+
It is the date your cover reaches back to. Professional indemnity responds to when a claim is made rather than when the work was done, and accountancy claims often arrive years later, so the retroactive date decides whether your older work is protected at all. Switching insurer without carrying it across is the most common way a practice loses years of cover without noticing, so check it before you move rather than after.
Do I need run-off cover when I retire or sell my practice?+
Yes, and your professional body probably requires it for a stated period. Claims keep arriving after you stop, so cancelling on your last day leaves every year of previous work unprotected. Buyers of practices and their solicitors ask about it as a matter of course, so it is part of a sale rather than an afterthought.
Does my PI policy cover a penalty my client received?+
Potentially, where the penalty is your client's loss and it flows from your error, such as a missed filing deadline. What is not insurable is a regulatory fine imposed on you. Representation at a disciplinary or regulatory hearing is often covered under legal expenses rather than professional indemnity, which is worth having as a separate section.
Do accountants need cyber insurance as well?+
It is hard to argue against for a practice holding client financial records, payroll data and payment authority. The realistic attack is business email compromise rather than anything dramatic: someone watches a payment conversation and intervenes with changed bank details. Check the funds transfer sub-limit specifically, because it is usually well below the headline policy limit and it is the loss most likely to occur.
Who insures accountants and bookkeepers in the UK?+
Professional indemnity for accountancy is widely written, including by insurers that work only through brokers and by schemes arranged with the professional bodies. Because availability is broad, what separates a good placement is structural rather than price: the retroactive date, whether defence costs erode the limit, and whether the services described still match the practice.
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