PI insurance explained

What is a retroactive date, and why does it affect cost?

Reviewed by Apex Insurance Brokers · Last reviewed 2026-08-05

In short: A retroactive date is the point in the past from which your professional indemnity (PI) policy will respond to claims. Work done before that date is excluded. An earlier retro date widens cover to include years of past work, so it increases the insurer’s exposure — and usually the premium. A later date narrows cover and costs less.

Professional indemnity is written on a “claims-made” basis. That means the policy in force when a claim is made against you deals with it — not the policy that was running when you actually did the work. The retroactive date is the mechanism that links those two moments together, and it quietly governs both how much of your past is protected and what you pay to protect it.

How the retroactive date actually works

Imagine a piece of advice you gave three years ago. A client only realises this year that it caused them a loss, and they notify a claim now. Whether your current PI policy pays depends on one test: was that advice given on or after your retroactive date?

Work done on or after the retro date — covered, provided you weren’t already aware of the problem when you took the policy out.
Work done before the retro date — excluded, even if the claim itself arrives during your policy year.

Two dates therefore matter on a claims-made policy: the retroactive date (how far back your work is covered) and the period of insurance (the window in which a claim must be made and notified). The retro date sets the breadth of your protection; the policy period sets the timing.

Why it moves the price

An insurer pricing your PI is essentially estimating the pool of past work that could generate a future claim. The retroactive date defines the size of that pool.

Push the retro date back to when you first started trading and you ask the insurer to stand behind everything you have ever done professionally. That is more exposure, more accumulated liability, and typically a higher premium. Set a recent retro date — or accept “inception only”, where cover begins with the current policy — and the insurer carries far less history, which is reflected in a lower price.

The retro date rarely acts alone. Insurers weigh it alongside your fee income, the limit of indemnity you choose (commonly £1m, £2m or £5m as illustrative options), your profession’s claims profile and your claims history. But of these, the retro date is the one that most directly controls how many past years of work are on the table.

Rule of thumb: earlier retro date = broader cover, higher exposure, usually higher premium. Later retro date = narrower cover, lower exposure, usually lower premium — but a gap where your past work sits unprotected.

Breadth versus price: the trade-off

Retro date setting	What it covers	Effect on premium
Full retro (from start of trading)	All past professional work	Highest — broadest exposure
Fixed past date	Work from that date onward	Moderate — limited history
Inception only / “none”	Only work from this policy start	Lowest — but a coverage gap

The cheaper option is not automatically the better one. If you have been trading for years, a late retro date can leave a stretch of your past work with no cover at all — and if a client claims over something from that window, you meet the cost yourself. The saving on premium can be dwarfed by a single uninsured claim.

Why continuity is the real prize

The retro date is where cost and continuity meet. When you renew with the same insurer, or move brokers while keeping an unbroken chain of cover, your retro date should carry forward. That continuity is what keeps years of past work protected without you paying twice.

Break the chain and you risk losing it. Let your PI lapse, or switch to a policy that resets the retro date to inception, and every claim arising from work before the new date falls outside cover. This is the trap professionals most often stumble into when they shop on headline price alone: a cheaper policy with a fresh retro date can look like a win while quietly stripping out years of protection you already had.

When you stop trading: because cover is claims-made, retiring or closing the business ends the policy that would respond — but claims can still arrive years later. That is what run-off cover is for: it holds your retro date open after you cease trading so late claims about past work are still met.

A properly maintained retro date, then, is not just a technical field on a schedule. It is the accumulated value of every year you have kept cover in place. Protecting it should weigh at least as heavily as the annual premium. Get a PI quote that preserves your existing retro date →

What to check on your schedule

Where is the retro date set? Confirm it matches your intended cover — ideally your start of trading if you have continuous history.
Has it changed at renewal? A retro date that has quietly moved forward has narrowed your cover.
Does a new quote preserve it? When switching insurer, insist the retro date is maintained, not reset to inception.
Are there any prior known circumstances? Anything you were already aware of before inception is normally excluded regardless of the retro date — disclose it.

Not sure whether your retro date is working for or against you? We’ll check it before you commit.

Get a PI quote →

Common questions

Does a later retroactive date always make PI cheaper?

Usually, yes — a later date reduces the insurer’s exposure to your past work, which tends to lower the premium. But it does so by removing cover for work done before that date. For an established business, that saving can be false economy if a claim arises from the uncovered period.

Can I extend my retroactive date backwards later?

Sometimes, but it is not guaranteed and often carries an additional premium, because you are asking the insurer to take on more historic exposure. It is far simpler and cheaper to maintain an early retro date through continuous renewals than to try to buy the years back afterwards.

What happens to my retro date if I switch brokers?

A good broker will place your new policy so the retroactive date carries across unbroken, keeping your past work covered. Always confirm this in writing before you move — a switch that resets the date to inception can silently strip out years of protection.

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