Claims Made Policy
Written by Justin Goodman, CIC, CISC, CLCS, CEO and Co-Founder, Total CSR
Published: August 27, 2026 · Last reviewed: August 27, 2026
In plain language: A claims made policy pays claims only if they're reported to the insurer while the policy is active, even if the mistake happened years earlier. Coverage depends on timing the report, not timing the error.
Technical definition: A claims made policy triggers coverage when a claim is first made and reported during the policy period, subject to a retroactive date. Common in professional liability, E&O, D&O, and malpractice forms, it shifts risk toward the insured through reporting deadlines and retroactive date limitations.
Claims Made Policy at a Glance
| Attribute | Detail |
|---|---|
| Also known as | Claims-made and reported policy, claims made form |
| Category | Coverage trigger / policy form |
| Lines of business | Professional liability, D&O, E&O, medical malpractice, cyber liability |
| Industries most affected | Healthcare, legal, financial services, technology, real estate, insurance agencies |
| Related forms or endorsements | Retroactive date endorsement, extended reporting period (tail) endorsement, prior acts endorsement |
| Who bears the risk | Insured, if coverage lapses or a claim is reported late or under a new carrier without proper tail or prior acts coverage |
| Common solution | Extended reporting period (tail coverage) or prior acts coverage when switching carriers or canceling the policy |
| Also interacts with | Retroactive date, occurrence policy, continuous coverage requirements |
Key Takeaways
- A claims made policy covers claims reported during the active policy period, not claims based on when the underlying act occurred.
- Agencies must track retroactive dates and reporting deadlines carefully, because gaps in coverage can leave a client with no carrier willing to pay a claim.
- The most common misunderstanding is assuming a claims made policy works like an occurrence policy, leading clients to cancel coverage without buying tail coverage.
- A quick win is to flag every claims made policy at renewal and cancellation for retroactive date continuity and tail coverage needs before the client leaves or switches carriers.
What Is Claims Made Policy in Insurance?
Claims made policy is a coverage structure used almost exclusively in liability lines where damage or injury can surface long after the wrongful act, such as professional negligence, medical errors, or director misconduct. Carriers use this form because occurrence-based coverage on these long-tail exposures would leave insurers unable to close their books or price risk accurately decades later. The claims made trigger lets the insurer limit exposure to a defined reporting window, tied to a retroactive date that marks the earliest point an act can have occurred and still be covered.
The retroactive date is the anchor of the whole structure. If a policy has a retroactive date of January 1, 2023, an act that occurred in 2022 is not covered even if it's reported while the policy is active in 2026. Conversely, an act that occurred in 2024 and is reported in 2026, while the policy remains continuously in force, is typically covered.
Consider an accounting firm insured on a claims made E&O policy since 2020. A client alleges negligent tax advice given in 2024. The firm reports the claim in 2026 while the policy is still active and the retroactive date predates 2024. The claim is covered, because both the act and the report fall within the policy's covered window.
How Does Claims Made Policy Work?
- The retroactive date is set. When the policy is first written, the carrier establishes a retroactive date, often the inception date of the insured's first claims made policy with any carrier, marking the earliest covered acts.
- The wrongful act occurs. A professional error, omission, or alleged act of negligence happens at some point after the retroactive date, but no claim is made yet.
- The claim is made. A client, patient, or third party formally asserts a claim or demand against the insured, verbally or in writing, depending on the policy's definition of "claim."
- The claim is reported. The insured reports the claim to the carrier while the policy is in force, meeting the policy's notice requirements exactly as written.
- Coverage is confirmed or denied. The carrier reviews whether the act falls after the retroactive date and whether the claim was reported within the active policy period, then confirms coverage or denies it for a reporting or timing gap.
Real Claim Examples Involving Claims Made Policy
Physician sued years after treatment
A physician carried claims made malpractice coverage continuously from 2018 through 2025, then switched carriers in 2026 without buying tail coverage on the old policy. A patient sued in 2027 over treatment rendered in 2023. The new carrier denied coverage because the retroactive date on the new policy started in 2026, and the old carrier denied coverage because the claim was reported after the policy expired with no tail purchased, leaving the physician personally exposed to defense costs and any judgment.
Law firm merger creates a reporting gap
A small law firm's claims made professional liability policy lapsed for 45 days during a merger while new coverage was being finalized. A former client filed a bar complaint and lawsuit alleging missed filing deadlines during that exact window. Because no policy was in force when the claim was made, and no extended reporting period had been triggered, the firm had no coverage for that specific claim despite having carried continuous professional liability insurance for over a decade.
Nonprofit D&O claim reported just before cancellation
A nonprofit's directors and officers policy was set to non-renew, and the board received a demand letter alleging breach of fiduciary duty two weeks before the policy's expiration. The agency confirmed the claim was reported and documented while the policy remained active, so coverage applied even though the underlying board decisions dated back three years, well after the policy's retroactive date.
Claims Made Policy vs. Occurrence Policy: What Is the Difference?
Claims made policy and occurrence policy are the two primary coverage triggers used across liability insurance, and confusing them is one of the most damaging errors an agency can make. An occurrence policy covers incidents that happen during the policy period regardless of when the claim is filed, while a claims made policy covers claims reported during the policy period regardless of when the incident happened.
| Comparison area | Claims Made Policy | Occurrence Policy |
|---|---|---|
| Primary use case | Professional liability, D&O, E&O, malpractice | General liability, auto liability, most property/casualty lines |
| Coverage / concept type | Reporting-based trigger tied to a retroactive date | Event-based trigger tied to date of injury or damage |
| Typical exclusions | Acts before the retroactive date; claims reported after policy lapse without tail | Acts outside the policy period regardless of report date |
| Who is most affected by errors | Insureds who cancel or switch carriers without tail or prior acts coverage | Insureds with delayed-manifestation injuries needing to prove the date of occurrence |
| Common mistakes | Failing to maintain continuous coverage or buy tail coverage at cancellation | Assuming coverage applies to acts before the policy's inception simply because damage continued |
What Are the Most Common Mistakes With Claims Made Policy?
- Canceling a claims made policy without purchasing an extended reporting period, which leaves prior acts permanently uninsured once the policy lapses.
- Assuming a new carrier's claims made policy automatically covers old acts, when in fact the new retroactive date may exclude everything before the switch.
- Treating "claim made" and "incident occurred" as the same trigger date, which misleads clients about what determines coverage.
- Failing to document the exact date a client received a demand letter or notice of circumstance, which can determine whether a claim falls inside or outside the policy period.
- Overlooking a retroactive date gap during agency mergers, acquisitions, or carrier transitions, creating an uninsured window that surfaces only after a claim arrives.
- Not explaining tail coverage cost and necessity clearly enough at renewal, leading clients to decline it and then discover the gap during a claim.
How to Explain Claims Made Policy to a Client
Explaining Claims Made Policy to a personal lines client
Most personal lines clients won't carry a claims made policy directly, but if they serve on a nonprofit board or work as a licensed professional on the side, it's worth explaining simply: "This policy only pays if you report the claim while it's still active. If you cancel it and something surfaces later, you may need extra coverage called a tail to protect you."
Explaining Claims Made Policy to a small business owner
Tell the business owner: "Your coverage depends on when a claim comes in, not when the mistake happened. If you ever switch insurance companies or close the business, we need to talk about tail coverage so old work you did is still protected." Emphasize that skipping this conversation before a cancellation is the single biggest source of gaps.
Explaining Claims Made Policy to a CFO or risk manager
Frame it around balance sheet exposure: "Your claims made policy is only as strong as your retroactive date and your continuity of coverage. Any lapse, carrier switch, or unpurchased tail creates a period where prior acts are uninsurable, which is a liability we need to manage proactively at every renewal and any M&A event." Risk managers respond well to framing tail coverage as a cost of exiting risk cleanly, not an optional add-on.
Frequently Asked Questions About Claims Made Policy
What happens if I cancel a claims made policy?
Canceling a claims made policy without buying an extended reporting period, or tail coverage, means any claims reported after cancellation have no policy to attach to, even if the underlying act happened while the policy was active. The insured is left uninsured for prior acts unless a new policy picks up the same retroactive date with no gap.
What is a retroactive date and why does it matter?
A retroactive date is the earliest date an act can have occurred and still be covered under a claims made policy, and it typically moves forward only if coverage lapses or a new carrier sets a fresh date. Losing an early retroactive date during a carrier switch can strip coverage for years of prior work.
Is tail coverage the same as an extended reporting period?
Tail coverage and extended reporting period refer to the same concept: additional time purchased after a claims made policy ends to report claims for acts that occurred before cancellation. The terms are used interchangeably across most professional liability and D&O markets.
Can a claims made policy be converted to occurrence coverage?
A claims made policy cannot simply be converted, but an insured can purchase tail coverage to extend the reporting window indefinitely or for a set number of years, which achieves a similar practical result for prior acts. True occurrence coverage requires a separate policy form entirely.
Why do professional liability policies use claims made instead of occurrence?
Carriers use claims made forms for professional liability because errors like misdiagnosis, bad advice, or fiduciary breaches can take years to surface, making it difficult to price occurrence coverage accurately decades out. The claims made structure lets insurers define a closed reporting window and price risk with more certainty.
Does prior acts coverage solve the same problem as tail coverage?
Prior acts coverage and tail coverage address the same gap from opposite directions: prior acts coverage is purchased by a new carrier to cover acts before the new policy's retroactive date, while tail coverage is purchased from the old carrier to extend the reporting window after cancellation. Agencies sometimes use one instead of the other depending on which carrier offers better terms.
Related Insurance Terms
- Occurrence Policy: A policy form that covers injury or damage happening during the policy period regardless of when the claim is later filed, the primary alternative to claims made coverage.
- Retroactive Date: The date set on a claims made policy marking the earliest point a wrongful act can have occurred and still be eligible for coverage.
- Extended Reporting Period: An add-on to a claims made policy, often called tail coverage, that extends the window to report claims for acts that occurred before the policy ended.
- Prior Acts Coverage: Coverage purchased from a new claims made carrier that extends the retroactive date backward to cover acts before the new policy began.
- Tail Coverage: The common industry name for an extended reporting period purchased when a claims made policy is canceled or not renewed.
- Nose Coverage: A less common term for prior acts coverage, purchased at the front end of a new claims made policy to close a retroactive date gap.
Sources and References
- National Association of Insurance Commissioners (NAIC). Claims-Made and Occurrence Policy Forms.
- Wikipedia. Claims-made insurance.
About the Author
Justin Goodman, CIC, CCIP, CISC, CLCS, CRIS, PCIA, QCLS, MFHR CEO and Co-Founder, Total CSR, Inc.
Justin Goodman is a third-generation insurance broker with over two decades in agency operations. He has trained more than 50,000 CSRs, account managers, and producers in commercial and personal lines coverage, from workers' compensation to construction risk. He was named 2024 Insurance Journal Agent of the Year and one of the nation's top five construction insurance experts by Risk & Insurance. He is the author of Retain, which applies cognitive science research on memory and knowledge transfer to insurance training, and speaks nationally on how agencies build durable technical expertise in their teams.