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Claims-Made Policy

Q: What's the difference between Claims-Made and Occurrence?

Claims-Made triggers coverage based on WHEN THE CLAIM IS FILED (must be during active policy + after retro date). Occurrence triggers coverage based on WHEN THE INCIDENT OCCURRED (must be during active policy; claim can be filed years later). Claims-Made is cheaper (30-50% less than Occurrence) but creates Tail-coverage purchase obligations. Occurrence is more expensive but provides automatic lifetime coverage on past work.

Q: What happens if I switch Claims-Made carriers?

Three critical mechanics: (1) Match retro date — your new carrier's retro must equal or precede your earliest prior retro date, OR they must explicitly grant Prior Acts Coverage at additional premium (10-25% of base). (2) No coverage gap — even one day of gap forfeits retro depth on the new carrier. Overlap 1+ day when switching. (3) Get retro date in writing on the declarations page — verbal assurances aren't enforceable.

Q: When do I need to buy Tail Coverage?

Four scenarios require Tail: (1) Retiring / closing the business — no future active Claims-Made to trigger coverage. (2) Selling the business — buyer's policy doesn't cover pre-sale wrongful acts unless Tail is purchased. (3) Switching from Claims-Made to Occurrence — Claims-Made past work needs Tail. (4) Carrier non-renewal / coverage gap — if you can't immediately get a new Claims-Made with matching retro, Tail bridges the gap. Cost typically 100-300% of annual premium for 3-yr to lifetime Tail. Full Tail mechanics.

By Jason Wootton · Edited by Justin Marks · Reviewed by Jason Wootton, NPN 7694718 Verify NPN ↗ · See disclosures ↓

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Definition. A Claims-Made policy responds when a claim is FILED during the policy period — not when the incident occurred. Standard for Professional Liability.

Also known as: Claims Made, Claims-Made and Reported

A Claims-Made policy responds only when both conditions are met simultaneously: (1) the alleged wrongful act occurred AFTER the retroactive date, AND (2) the claim was first filed against you DURING the active policy period (or during a properly-purchased Extended Reporting Period). Standard form for Professional Liability (E&O), Cyber Liability, EPLI, and D&O.

Why carriers use Claims-Made instead of Occurrence: claims-made limits the carrier's tail-risk exposure to a defined policy period, which makes the policy much cheaper to underwrite (typical 30-50% lower premium than equivalent Occurrence coverage). The trade-off lands on YOU: any coverage gap creates uninsured exposure for past work, and switching carriers requires careful retro-date matching.

Three critical Claims-Made mechanics every business should know: (1) The retro-date determines how far BACK coverage reaches — earlier retro = broader protection; gap-or-restart = uninsured period. (2) Continuous renewal protects past work — letting the policy lapse even briefly creates an uninsured-acts gap. (3) Extended Reporting Period (Tail) is required when retiring, selling the business, or switching from Claims-Made to Occurrence — without Tail, all past work becomes uninsured once the Claims-Made policy ends.

Real-world scenario

Olivia is a hypothetical small-business owner; her scenario illustrates how Claims-Made coverage responds (or fails to respond) based on policy timing. It is not based on a specific real customer, claim, or quote from any carrier.

Olivia, marketing consultant — Denver, CO (hypothetical). Solo consultant, ~$145K annual revenue, 8 years in business. Professional Liability Claims-Made policy with retro date = 2017 (her business inception). Annual premium $1,800.

October 2025: Olivia is recruited to an in-house marketing director role at a larger firm. She accepts. November 1, 2025: she officially closes her consultancy + stops paying Pro Liab premium effective the policy expiration December 31, 2025. Her last consulting engagement closed September 2025.

March 2026 — 5 months after her Pro Liab ended — a former client emails Olivia threatening a $48,000 lawsuit. The client alleges that a strategic recommendation Olivia made in April 2024 caused $48K in lost revenue when their product launch underperformed competitor benchmarks. Olivia reports the threat to her former Pro Liab carrier. The carrier denies coverage — even though the alleged wrongful act occurred AFTER the 2017 retro date (so condition #1 is met), the claim was filed AFTER the December 2025 policy expiration (so condition #2 fails). The Claims-Made trigger requires BOTH conditions simultaneously.

Olivia's options: (1) Negotiate / fight personally — $30,000-$60,000 defense costs uninsured. (2) Settle quickly to avoid trial costs — typical $15,000-$35,000 nuisance settlement. (3) Should have bought Extended Reporting Period (Tail) before policy expired — typical 3-yr Tail on her $1,800 annual premium would have cost ~$2,700-$4,500 (150-250% of annual premium) and would have covered this exact scenario. Annual lesson value: $15K-$60K uninsured exposure avoidable with $3-5K Tail purchase before retiring or closing the business. Per IRMI's published 2024 Pro Liab market data, roughly 10-15% of small-business Pro Liab cancellations result in a claim within the 3-year-post-cancellation window — many of those uninsured because Tail wasn't purchased.

How it affects your premium

Claims-Made premium mechanics differ from Occurrence in critical ways:

First-year discount + step-up pricing — first-year Claims-Made is heavily discounted (typically 30-40% below ultimate Claims-Made rate) because retro = policy inception = limited tail exposure. Year 2: ~60% of mature rate. Year 3: ~80%. Year 4: ~95%. Year 5+: full mature rate. Many businesses are surprised when premium "jumps" in years 2-5 — it's the normal Claims-Made step-up curve, not a bad-faith hike.
Retro date depth — earlier retro date adds 8-20% premium but covers more past work. Brand-new businesses with no prior consulting work can default to retro = inception (no premium impact). Businesses with prior practice MUST match earliest retro from prior carrier to avoid gap.
Tail coverage cost — typically 100-300% of annual premium for full unlimited Tail; lower for 1-3-yr durations. Cost rises with profession risk class — medical/legal/financial advisor Tails cost 200-400% of annual premium.
Coverage gap penalty — switching carriers WITH a coverage gap forfeits retro-date depth. Most carriers will NOT backdate retro past a coverage gap. Always overlap 1+ day when switching to preserve continuous-coverage retro depth.
Profession risk class — same as Occurrence; medical / financial advisor / legal pay 5-15x what consulting / IT pay for equivalent limits + retro depth.
Annual aggregate vs per-claim limits — most Claims-Made policies have BOTH; multiple claims in a policy year share the aggregate; severity-claim ceiling is the per-claim limit.
Prior Acts Coverage — separate negotiation when switching carriers. New carrier's retro can include "Prior Acts" coverage at additional premium (10-25% of base premium) to cover work done before the new policy inception.

Per III + carrier benchmarks 2024 Pro Liab data, median Pro Liab premium is $50/month ($600/year); year-1 Claims-Made discount means a new policyholder might pay $35-$40/month, stepping up to $50-$55/month by year 5. Tail coverage on cancellation typically costs $600-$1,800 for 3-yr ERP.

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Common misconceptions

Myth: If I cancel my Claims-Made policy, I'm still covered for work I did while insured.

Reality: Wrong, and the most expensive Claims-Made misunderstanding. Claims-Made requires an ACTIVE policy when the claim is FILED, regardless of when the work was done. Letting the policy lapse + having a claim filed later means: alleged wrongful act inside retro window (OK) BUT no active policy at claim-filing time (fails) = denied claim. Extended Reporting Period (Tail) is the fix — buy it BEFORE the policy expires.

Myth: Claims-Made and Occurrence policies cover the same things, just priced differently.

Reality: They cover the same coverage SCOPE but with completely different timing rules. Occurrence = incident date triggers coverage (you're covered for life on past work even after policy ends). Claims-Made = claim-filing date triggers coverage (you're only covered while the policy is active OR during a purchased Tail). The timing difference matters enormously for professions where claims surface years after the work (Pro Liab, Cyber, EPLI).

Myth: All Pro Liab is Claims-Made; there's no choice.

Reality: Mostly true but with exceptions. ~95% of Pro Liab is Claims-Made because Occurrence is too risky for carriers on long-tail professional liability. However: some construction professional liability + a few specialty medical professional policies offer Occurrence forms. When available, Occurrence is 30-60% more expensive but eliminates Tail-purchase concerns. Most small-business consultants/agencies will only see Claims-Made quotes.

Frequently asked questions

What's the difference between Claims-Made and Occurrence?

Claims-Made triggers coverage based on WHEN THE CLAIM IS FILED (must be during active policy + after retro date). Occurrence triggers coverage based on WHEN THE INCIDENT OCCURRED (must be during active policy; claim can be filed years later). Claims-Made is cheaper (30-50% less than Occurrence) but creates Tail-coverage purchase obligations. Occurrence is more expensive but provides automatic lifetime coverage on past work.

What happens if I switch Claims-Made carriers?

Three critical mechanics: (1) Match retro date — your new carrier's retro must equal or precede your earliest prior retro date, OR they must explicitly grant Prior Acts Coverage at additional premium (10-25% of base). (2) No coverage gap — even one day of gap forfeits retro depth on the new carrier. Overlap 1+ day when switching. (3) Get retro date in writing on the declarations page — verbal assurances aren't enforceable.

Why does my Claims-Made premium go up every year?

Normal step-up curve, not a bad-faith hike. Year 1 Claims-Made is heavily discounted (30-40% below mature rate) because retro = inception = minimal tail exposure. The carrier's tail-exposure grows each year as your retro depth deepens. Typical curve: year 1 ~65% of mature; year 2 ~80%; year 3 ~95%; year 4+ full mature rate. After year 4-5, premium should stabilize (subject to revenue/exposure growth + claims history).

When do I need to buy Tail Coverage?

Four scenarios require Tail: (1) Retiring / closing the business — no future active Claims-Made to trigger coverage. (2) Selling the business — buyer's policy doesn't cover pre-sale wrongful acts unless Tail is purchased. (3) Switching from Claims-Made to Occurrence — Claims-Made past work needs Tail. (4) Carrier non-renewal / coverage gap — if you can't immediately get a new Claims-Made with matching retro, Tail bridges the gap. Cost typically 100-300% of annual premium for 3-yr to lifetime Tail. Full Tail mechanics.

Sources cited

Claims-Made Policy — International Risk Management Institute (IRMI) (2024)
Professional Liability Insurance Cost — Insurance Information Institute (III) (2024)
Extended Reporting Period (ERP) — International Risk Management Institute (IRMI) (2024)

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Disclosures

📘 Educational content only. Reviewed by licensed Property & Casualty insurance agent Jason Wootton (NPN 7694718). Not insurance advice, an individual recommendation, or a solicitation in any state. Insurance regulations vary by state. For specific coverage decisions, consult a licensed insurance agent in your state.

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