Loss Runs
Loss runs are insurance claim-history records that document reported losses, claim status, reserves, and payments associated with a policy or account.
Definition
Loss runs are documents produced by an insurer or claim administrator that summarize the recorded claim activity for a policyholder, insured account, coverage line, or policy period. They function as historical claim records used in underwriting, renewal analysis, risk classification, and loss-history review.
A loss run typically identifies claims that have been opened, closed, denied, reserved, paid, or otherwise recorded during a stated reporting period. The document does not itself create coverage, determine liability, or replace the policy form. It reflects claim information recorded by the insurer or administrator as of the report date.
Structural Components
Loss runs are structured around claim-level and policy-level data elements that allow an insurer, underwriter, or risk reviewer to evaluate historical loss activity.
- Policy identification: The policy number, named insured, carrier, coverage line, and policy period associated with the report.
- Claim identification: The claim number, date of loss, date reported, claimant information, and claim description.
- Claim status: The classification of a claim as open, closed, reopened, denied, pending, or otherwise categorized by the claim administrator.
- Paid losses: Amounts already paid for indemnity, defense, medical, property, or other claim components.
- Loss reserves: Amounts set aside for anticipated future claim payments based on the claim administrator’s evaluation.
- Total incurred: The combined value of paid losses and outstanding reserves as reflected on the report date.
Parameters & Conditions
Loss runs are generally bounded by the policy periods, coverage lines, carriers, and claim-reporting dates included in the report. They may be requested for one policy year, multiple prior policy years, or a full historical period depending on the underwriting context.
The usefulness of loss runs depends on the accuracy, completeness, and currency of the claim data. A report generated before claim closure may include reserves that later change. A report generated after claim closure may reflect final paid amounts, claim disposition, and adjusted incurred values. Loss runs are therefore time-sensitive records rather than permanent statements of final loss value.
Topic Relationships
Loss runs relate to the following insurance topics because each helps classify, interpret, or evaluate claim history and underwriting exposure:
Exceptions, Limitations & Boundaries
Loss runs are not insurance policies, endorsements, declarations pages, certificates of insurance, or coverage determinations. They summarize claim-history information but do not establish whether a future claim is covered or whether a prior claim was correctly adjusted.
Loss runs may also omit claims outside the requested reporting period, claims held by another carrier, claims administered under a different account, or incidents that were never reported. A “no known losses” statement is not the same as a carrier-issued loss run unless it is accepted as such within the relevant underwriting context.
Loss Runs: Definitional FAQ
Loss runs are a form of claims-history documentation produced by an insurer or claim administrator for a stated policy, account, or reporting period.
A loss run usually shows claim numbers, dates of loss, claim descriptions, status, paid amounts, reserves, and total incurred values.
No. Reserves are estimated amounts set aside for potential future claim payments and may change as claim information develops.
No. Loss runs document claim activity, while coverage determinations depend on the applicable policy language, endorsements, exclusions, and facts of loss.