Why Legal Professional Liability Insurance Step Rating Increases Premiums
A law firm avoids claims, maintains the same practice areas, retains the same attorneys, and receives a higher professional liability insurance renewal premium. Why? In the initial coverage years legal professional liability insurance step rating causes the increase.
Claims-made policies exposure increases each year the law firm maintains continuous claims-made coverage. Step rating reflects that exposure. Understanding claims-made “step rating” prevents surprises at renewal.
What Is Legal Professional Liability Insurance Step Rating?
Lawyers professional liability insurance are claims-made or claims-made-and-reported policies. The premium increases as each renewal policy covers additional years of prior acts. In the first policy year, a law firm receives coverage only for professional services performed on or after that policy’s inception date. The policy inception date establishes the prior acts date.
Assuming the firm maintained continuous claims-made coverage, the current insurer covers reported claims even for prior years. This makes maintaining the policy’s prior-acts date, sometimes called its retroactive date, extremely important. At each renewal, the policy covers additional years of prior legal services. As the insurer’s exposure grows, and so does the “step rated” premium.
For example:
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- First policy year: The policy covers a limited period of legal services, so the insurer applies an introductory rating step.
- Second renewal: The policy covers the current year plus an additional year of prior acts.
- Later renewals: Each policy covers a progressively longer period of prior legal work.
- Fully rated policy: The policy eventually reaches its mature rating level, and step-rating increases end.
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The exact schedule varies by insurance company. Each insurer’s specific step-rating schedule differs slightly.
How Long Does Step Rating Last?
Legal professional liability policies reach a mature or fully rated premium after five to seven years of continuous claims-made coverage.
As a rule the fully rated policy premium doubles from the initial policy. Other underwriting and market factors impact later year’s premium increases or decreases.
With a fully rated policy premiums increase or decrease independent of “step rating.”
What Happens After a Policy Becomes Fully Rated?
Step rating eventually ends, but reaching a mature rating level does not freeze the premium. Factors impacting legal professional liability insurance costs include:
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- Claims and potential-claim history
- Attorney disciplinary matters
- Changes in the number of attorneys
- Attorney departures and additions
- Areas of legal practice
- Geographic location
- Gross revenue or billings
- Selected liability limits and deductible
- Risk-management procedures
- Changes in insurer rates
- Overall insurance market conditions
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An insurers apply both step rating increases and other underwriting adjustments during the each renewal. This combination can make the total increase appear larger than expected.
Does Step Rating Restart When a Law Firm Changes Insurers?
Changing insurance companies does not restart “step rating.” However, the new policy must preserve the correct prior acts date.
Before changing insurers, verify that the proposal and final policy show the correct prior acts date. Do not assume the new insurer automatically provided identical prior acts coverage.
Why Is the Prior-Acts Date So Important?
The prior acts date determines how far back the current policy may cover professional services. If a claim arises from legal work performed before that date, the current policy provides no coverage.
For example, suppose a law firm purchased its first claims-made policy on January 1, 2022, and maintained continuous coverage. Its renewal policy retains January 1, 2022, as the prior acts date.
If a renewal policy instead uses January 1, 2026, the firm loses coverage for claims arising from work performed between 2022 and 2025.
The American Bar Association’s guidance on claims-made and prior acts coverage explains that lawyers professional liability policies use claims-made coverage. It also emphasizes that prior acts coverage and retroactive dates determine the earlier legal services qualifing for coverage.
Preserving the prior acts date protects years of legal work. Treat you prior-acts date as a critical coverage term, not an administrative detail.
Frequently Asked Questions About Step Rating
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- Is step rating a penalty? – Step rating reflects the policy’s expanding prior-acts exposure.
- Will every renewal premium increase? – Not necessarily. Step rating contributes to increases during the early years, but credits, exposure changes, underwriting decisions, and market conditions can affect the final premium.
- Is step rating explained in the insurance policy? – Not normally. The policy explains the coverage, while the insurer’s rating methodology determines the premium.
- Does step rating change the policy limit? –
- Can switching insurers reduce the premium? – It might, it might not.
- Does changing insurers erase prior acts coverage? – Confirm that the new insurer maintained the prior acts date.
- What does “fully rated” mean? – A fully rated policy does not increase or decrease premiums because of “step rating.”
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In Summary
Legal professional liability insurance step rating matches increasing claims-made exposure to the premium charged. A new policy starts with limited prior-acts exposure, but each continuous renewal can cover a longer history of legal work. The premium increases until the policy reaches its fully rated level.
By preserving the prior-acts date, maintaining continuous insurance, and reviewing renewal changes with an experienced agent, attorneys protect their past work.
L Squared Insurance Agency helps attorneys and law firms evaluate lawyers professional liability insurance, compare insurer options, and understand renewal pricing. Contact us to review your coverage or request a competitive legal malpractice insurance quote.
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Lee Norcross, MBA, CPCU
California License # 0D87292
L Squared Insurance Agency, LLC ® DBA in California as L2 L Squared Insurance Agency, License # 0L93416
Managing Director, CEO
Lee@L2Ins.com
616-726-7080
Coverage varies by insurer and policy. This article provides general information and does not amend, extend, or replace the terms, conditions, exclusions, or limitations of any insurance policy.