Solicitors Professional Indemnity Insurance Cost and Rules

Solicitors professional indemnity insurance is the most heavily specified professional cover in the United Kingdom. The regulator sets minimum terms and conditions that every qualifying policy must meet, a minimum limit, and rules about what happens when a firm closes, and a policy outside them does not satisfy the obligation however good it looks.

Minimum terms and conditions

The regulator publishes the terms a qualifying policy must contain, covering the scope of cover, what may and may not be excluded, the minimum limit for different firm types, and the position of the insured after a claim. Firms buy to that specification from participating insurers rather than shopping a wording on the open market.

The renewal cycle

The profession has a common renewal pattern and a well developed broker market around it. Firms with claims histories, conveyancing heavy caseloads or particular practice areas find capacity tighter and pricing sharper, and leaving renewal late in a hard market is the recurring operational risk rather than the cover itself.

How much does solicitors professional indemnity insurance cost?

The regulator sets the terms a policy must meet, not its price, and the participating insurers do not publish one. One broker publishes its own placements: in Apex's placements the middle half of solicitors' firms paid 1.21% to 2.80% of annual fees on a £1m equivalent basis (n=45, data extracted 6 September 2026). That is one broker's book rather than a market average. Where a firm sits inside it, or outside it, follows the caseload mix and the claims history described below.

Run off when a firm closes

Closing firms must obtain run off cover for a period set by the rules, and the premium is substantial. It is the single largest planned cost of winding down a practice and is the reason succession planning and closure planning are treated as insurance questions as much as commercial ones.

Where the claims come from

Conveyancing has historically generated a large share, followed by litigation limitation failures, wills and probate errors, and undertakings given and not met. Insurers underwrite the caseload mix directly, which is why two firms of the same size can be quoted very differently.

Questions people ask about solicitors professional indemnity insurance

Is it compulsory for solicitors?

Yes. Firms must hold qualifying insurance meeting the regulator's minimum terms and conditions, at the minimum limit the rules set.

Can I buy any policy?

Only one meeting the minimum terms from a participating insurer. A cheaper wording that falls outside them does not satisfy the obligation.

What happens when a firm closes?

Run off cover is required for the period the rules set, and the premium is substantial. It is the largest planned cost of closing a practice.

Why is my quote higher than a similar firm's?

Caseload mix above all. Conveyancing, litigation and probate each carry different claims records and insurers underwrite the mix directly.

Is professional indemnity insurance tax deductible?

For a self employed business, HMRC lists insurance among the financial costs that count as allowable expenses, so the premium is normally deductible where it is a business cost. A limited company's position, and your own figures, are for your accountant to confirm.

What is the average cost of solicitors professional indemnity insurance?

No market average is published. The nearest published figure is one broker's: the middle half of solicitors' firms it placed paid 1.21% to 2.80% of annual fees on a £1m equivalent basis.

What does solicitors professional indemnity insurance cover?

Claims against the firm for loss caused by its legal work, on the scope the regulator's minimum terms and conditions set. Conveyancing, missed limitation dates, wills and probate errors and unmet undertakings are where most claims come from.

Solicitors professional indemnity insurance cost, and the minimum terms the regulator sets