Tax Advisers

How much PI cover do tax advisers need?

In short: A tax adviser's PI limit has to answer for the past as well as the present. Claims typically crystallise when an HMRC enquiry unwinds advice given years earlier, and the measure of the claim is the client's tax, interest and penalties, not your fee. Professional bodies such as the CIOT and ATT require members in practice to hold PI at levels set out in their rules, and that requirement is the floor, not the answer.

Why tax claims are different: the enquiry-shaped tail

Most professions find out about their mistakes from unhappy clients. Tax advisers find out from HMRC. The typical claim begins when an enquiry, a discovery assessment or a nudge letter reopens a position taken years earlier, and the client, facing additional tax, interest and penalties, asks who advised them into it. The gap between advice and claim can be long, because enquiry windows, discovery rules and litigation all take time.

That gap matters for insurance because PI is written on a claims-made basis: the policy that responds is the one in force when the claim is made, not when the advice was given. Today's limit is therefore protecting your whole insured history, including advice given when the practice was smaller and the work was simpler. If your client base has grown in size or complexity, the limit needs to have grown with it.

It also means continuity is precious. Keeping cover continuous preserves your retroactive date, and when you eventually sell, merge or retire, run-off cover is what answers claims that arrive after the door closes. Professional bodies expect members to make proper provision for run-off, and enquiry-driven claims are exactly the kind that surface late.

Measuring the exposure: tax at stake, not fees billed

A claim against a tax adviser is measured by the client's loss: the additional tax that could and should have been avoided or correctly reported, plus interest, penalties and the professional costs of dealing with the enquiry. None of that has any relationship to your fee. A modest fixed fee for structuring advice can sit behind a very large tax outcome.

So when you weigh the limit, look at the tax at stake in your work rather than your turnover. What is the largest transaction, reorganisation, estate or remuneration structure you have advised on recently, and what would it cost the client if the position failed? Advisers dealing with owner-managed businesses, property transactions, IHT planning or cross-border matters can carry substantial exposure from a handful of files.

Consider concentration too. If much of your work follows a similar pattern, one flawed approach can generate related claims across many clients when HMRC's attention turns to that pattern. How your policy aggregates related claims, and whether your limit is written in the aggregate or on an each-and-every-claim basis, decides how well it survives that scenario.

Scheme advice history: the past on your books

Every established tax practice has history, and some practices have history that includes planning arrangements which looked robust at the time and look different now. Where clients were introduced to or advised on arrangements that HMRC has since challenged, the resulting enquiries, settlements and follow-on claims can arrive long after the advice stopped.

Be straightforward about this history with your broker and on proposal forms. Insurers ask about past involvement in tax planning arrangements, and accuracy is what keeps the policy dependable; a policy bought on an incomplete picture is fragile precisely when you need it. If your practice has such history, the wording, the retroactive position and the limit all need choosing with that history in mind.

If your practice has no such history, say so and keep it evidenced. The discipline of PCRT, the Professional Conduct in Relation to Taxation standards adopted by the main tax and accountancy bodies, is helpful here: work done within those standards, documented well, is easier to defend and easier to insure.

What the professional bodies require

If you are a member in practice of the Chartered Institute of Taxation or the Association of Taxation Technicians, holding professional indemnity insurance is mandatory, at levels and on terms set out in the bodies' PI regulations. Members of ICAEW, ACCA and the other accountancy bodies practising tax are under equivalent obligations through their own regulations. Compliance is checked, and practising without the required cover is a disciplinary matter.

Treat the body's requirement as a floor, because that is what it is. The regulations set minimum levels for the profession as a whole; they cannot know that your practice advises on large transactions or carries concentrated exposure to a particular planning pattern. The right limit for your practice is the body minimum or the level your exposure justifies, whichever is higher.

Client and referral contracts can raise the floor further. Larger clients, lender panels and professional referral networks sometimes specify PI requirements in engagement terms. As ever, the highest requirement across everything you have signed is the number your policy must clear.

Structure, excess and the enquiry-cost question

Once the limit is framed, three structural points deserve attention. First, the basis: an aggregate limit is one pot for the year, an each-and-every-claim limit restores per claim, and for a profession where one pattern can produce several related claims, the difference is material. Second, defence costs: enquiry-driven disputes are professionally expensive, so check whether defence costs erode the limit or are payable in addition.

Third, keep PI distinct from fee protection insurance in your own mind and your clients'. Fee protection covers the professional costs of handling an HMRC enquiry; it does not respond when the client alleges your advice caused their loss. The two products answer different questions, and having one is not a substitute for the other.

Review the whole arrangement annually against the shape of the practice: new work types, larger clients, lateral hires with their own history, and anything HMRC has taken fresh interest in. Tax moves quickly, and a limit set three years ago was set for a different practice and a different enforcement climate.

Frequently asked questions

Do CIOT and ATT members have to hold PI insurance?

Yes. Members in practice must hold professional indemnity insurance complying with their body's PI regulations, and equivalent obligations apply to members of the main accountancy bodies who give tax advice. Treat those requirements as a minimum, not as the right answer for your particular exposure.

What actually gets claimed against a tax adviser?

Typically the client's additional tax where the position could have been avoided or correctly handled, plus interest, penalties and the costs of dealing with the enquiry. The claim is measured against the client's loss, not your fee, which is why limits anchored to turnover understate the exposure.

Does fee protection insurance replace PI cover?

No. Fee protection meets the professional costs of handling an HMRC enquiry. PI responds when a client alleges your advice or work caused them loss. A tax practice can need both, and neither product does the other's job.

PI for tax advisers, from a broker who understands the tail

Apex Insurance Brokers, Bristol. Independent, FCA regulated, and used to the questions tax practices actually get asked.

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Apex Insurance Brokers Limited is authorised and regulated by the Financial Conduct Authority (FRN 724952). This page is general information, not advice on a specific policy.