Category: Insurance definitions · Reviewed by Chrissie Anderson, Client Executive · Last reviewed May 2026
A circumstance notification in PI insurance is a formal notice to your insurer of facts or events that may give rise to a future claim, made during the current policy period. Notifying a circumstance locks the matter into the policy in force at the time of notice, so that any later claim arising from those facts is treated as having been made within that policy year — regardless of when the actual claim eventually lands.
Professional indemnity insurance in the UK is written on a “claims-made” basis. The policy that responds is the one in force when a claim is first made against the insured, not the one in force when the work was done or when the alleged error occurred. That structure produces a practical problem: by the time a client formally makes a claim, the insurer who covered the original work may no longer be on cover, and the current insurer may treat the matter as a known issue that should have been disclosed at renewal.
Circumstance notification is the contractual mechanism that resolves this. Almost all UK PI wordings include a clause — sometimes called a “deeming” or “notification of circumstances” clause — that allows the insured to notify the insurer of any “circumstance” that may give rise to a claim. Once notified and accepted, the matter is deemed to have been notified as a claim within the policy year in which notice was given. Any subsequent claim arising from the notified circumstance attaches to that policy, even if the formal claim is made years later under a different policy or with no policy in force at all.
In practical terms, a circumstance notification is the insured’s protection against the timing risk of claims-made cover. It also discharges the insured’s duty to notify under the policy, which most wordings frame strictly: failure to notify a known circumstance promptly can be grounds for the insurer to decline a later claim.
Three steps run in sequence. First, the insured identifies a circumstance — a fact, event, complaint, error or piece of correspondence — that, in the insured’s reasonable judgement, could lead to a claim. Second, the insured writes to the insurer or broker setting out the facts: who is involved, what work was done, what has gone wrong, what loss might result, and the dates. Third, the insurer acknowledges the notification, opens a precautionary file, and either reserves on the matter or holds it open pending further developments.
Two judgement calls drive the process. The first is whether the situation amounts to a “circumstance” within the wording. Wordings vary but most define it as a fact or event likely to or which may give rise to a claim. The threshold is generally low — actual notice from a client demanding compensation is clearly a circumstance, but so is a complaint letter, an adverse audit finding on past work, the discovery of an internal error, or even a difficult conversation in which a client expresses serious dissatisfaction. If a reasonable professional, with the facts in front of them, would think a claim is possible, the threshold is met.
The second judgement is timing. Most wordings require notification “as soon as practicable” or “without delay” after the insured first becomes aware. Delayed notification — particularly across a renewal date — is one of the most common reasons PI claims are declined. A circumstance known before renewal but notified only after renewal can be characterised by the new insurer as a pre-existing matter that should have been disclosed, and by the prior insurer as out of time.
Once a circumstance is notified, the insurer cannot retrospectively withdraw the policy year or refuse to handle a later claim arising from it, provided the notification was made in good faith and within the policy’s terms. The insured can then renew the policy, change insurer, or even cease practice, without losing the cover that attached to the original circumstance.
A UK accountancy practice with £1.2m fee income holds PI cover with a limit of £2m each and every claim and an excess of £10,000. The policy runs from 1 October to 30 September each year.
In April, a senior partner reviews a corporation tax return filed by a junior eighteen months earlier and identifies what appears to be a material under-declaration of taxable profit. The client has not yet been told. There is no claim, no complaint, and no certainty that loss will follow — HMRC may never raise the point, the client may not blame the firm, and the calculation may yet prove defensible.
This is a circumstance. The partner writes to the broker setting out the facts: the client name, the tax year affected, the apparent error, the estimated tax exposure (around £85,000 plus interest and possible penalties), and the proposed next steps with the client. The broker submits the notification to the insurer. The insurer acknowledges the notification under the policy year ending 30 September.
Two years later, the client — having paid the corrected tax — issues a letter of claim against the firm for £140,000 covering the additional tax, interest, penalties, and professional fees of an investigating accountant. By this date the firm is with a different insurer at a higher limit. The claim, however, attaches to the original notified circumstance and is handled by the original insurer under the policy year in which the circumstance was notified. The excess of £10,000 applies, the £2m limit applies, and the current insurer’s policy is unaffected.
Had the firm not notified the circumstance at the point of discovery, two adverse outcomes would have been possible. The original insurer might have argued that the firm knew of the matter and failed to notify promptly under the wording, giving grounds to decline. The current insurer would have argued the matter was a pre-existing known circumstance that should have been disclosed at renewal and was material to its underwriting decision, giving grounds to avoid the policy or to exclude the matter.
Three situations push circumstance notification to the centre of PI risk management.
The first is at renewal. The proposal form will ask whether the insured is aware of any circumstance that may give rise to a claim. Answering “no” when a circumstance is in fact known is a misrepresentation that can void the cover on that matter. The right approach is to notify the circumstance to the existing insurer before the renewal, then disclose the notification on the renewal proposal.
The second is on changes of insurer. The new insurer almost always asks about open and prior notified circumstances. Circumstances properly notified to the prior insurer remain that insurer’s responsibility; circumstances not notified before the switch fall into a no-man’s land where neither insurer wants the file.
The third is on cessation of practice or run-off. A practice ceasing operations should review live files and notify any matter that could later produce a claim. Once run-off cover is bound, additional circumstances can typically still be notified during the run-off period, but the discipline of a full review at cessation captures matters that staff and partners may forget once the firm winds down.
Most UK PI wordings use one of a few standard formulations. The narrower formulation requires that the insured notify circumstances “likely to give rise to” a claim — a higher threshold suggesting probability rather than possibility. The broader formulation refers to circumstances “which may give rise to” a claim — a lower threshold, requiring only that a claim is reasonably possible.
For solicitors operating under the SRA Minimum Terms and Conditions, the wording is prescribed by the SRA. The MTC requires notification “as soon as practicable” of any circumstance that may give rise to a claim, and the wording cannot be made more restrictive by the insurer. For architects under ARB and surveyors under RICS, the framework allows insurers to set their own notification standard subject to regulatory minimums.
Some wordings include an “innocent non-disclosure” clause that protects the insured where a circumstance was genuinely not appreciated as such at the time. Others include a “discovery period” extension allowing late notifications within a defined window after expiry. Both are useful protections to look for at renewal but neither replaces prompt notification at the point of awareness.
Circumstance notification sits alongside several other PI concepts. Aggregation of claims determines whether multiple notified circumstances arising from a common cause are treated as one claim or several for limit and excess purposes. Utmost good faith and the duty of fair presentation drive the disclosure obligations that interact with notification. Renewal warranties govern what the insurer relies on in continuing to write the cover, including the no-known-circumstances declaration on the proposal form.
What is a circumstance notification in PI insurance?
A circumstance notification is a formal notice to a PI insurer that facts have come to the insured’s attention which may give rise to a future claim. The notification locks the matter into the policy year in which notice is given, so any later claim arising from those facts is handled by that policy regardless of when the formal claim is made.
When should I notify a circumstance?
As soon as you become aware of facts that may give rise to a claim. Most wordings require notification “as soon as practicable” or “without delay”. The trigger is awareness — not certainty of a claim, not service of formal proceedings, and not waiting to see whether the client complains. If a reasonable professional would think a claim is possible, notify.
What happens if I don’t notify a circumstance and a claim arrives later?
The insurer can decline the claim on the basis of late notification. If you have changed insurer between the circumstance and the claim, the prior insurer can argue the matter is out of time and the current insurer can argue it was a pre-existing known circumstance that should have been disclosed. Both routes leave the firm carrying the loss.
Does notifying a circumstance count as a claim against my record?
Notification opens a precautionary file but is not a claim until and unless a claim is actually made. For renewal disclosure purposes, however, most insurers want to know about both notified circumstances and actual claims. A notification that closes without a claim is generally a neutral or mildly favourable signal — it shows the firm runs a disciplined notification process.
Will notifying a circumstance increase my premium at renewal?
Possibly. Underwriters look at the totality of notified circumstances and claims when pricing. A single circumstance with no actual loss is rarely material on its own. A pattern of notifications, particularly with material loss potential, will affect premium and may affect terms. The alternative — not notifying and risking a declined claim — is almost always worse than the premium impact.
Can I notify a circumstance after my policy has expired?
Generally no. Notification must be made during the policy period (or any extended reporting period the wording provides). Once the policy has expired and a circumstance has not been notified, cover for that matter is normally lost unless the next policy covers it on a retroactive basis and the insured did not previously know of it.
What is the difference between a claim and a circumstance?
A claim is a demand by a third party against the insured — a letter of claim, a court proceeding, or a written or oral demand for compensation. A circumstance is the precursor: facts known to the insured that may give rise to a claim before the third party has formally made one. Both should be notified to the insurer, but only the claim is a “claim” for limit and excess purposes.
Should I notify a complaint that I think is unfounded?
If the complaint suggests the client believes the firm has caused them loss or wrongdoing, notify. The merits are a separate question — the insurer’s role is to assess and handle. Notifying an unmeritorious complaint costs nothing; failing to notify a complaint that later becomes a claim can void cover for the matter.
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Apex Insurance Brokers Ltd is a Bristol-based independent insurance broker authorised and regulated by the Financial Conduct Authority (firm reference number 724952), registered at Companies House under number 07014570. The firm advises UK professional service practices on Professional Indemnity and related covers. Contact: info@apexinsurancebrokers.co.uk or 0117 325 0027.
Last reviewed: May 2026 by Apex Insurance Brokers Ltd.
Important: this article is general information, not advice on your specific circumstances. For advice on PI insurance for your firm, contact us on 0117 325 0027 or info@apexinsurancebrokers.co.uk.
Apex Insurance Brokers serves UK professional services firms and commercial businesses. Call 0117 325 0027, email hello@apexinsurancebrokers.co.uk, or request a quotation.
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