FilingFocus

Endorsements

Supplemental extended reporting period in admitted P&C products

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Coverage intent

A supplemental extended reporting period is an additional or optional tail period that extends the time to report covered claims after the policy period.

Coverage impact

Supplemental ERP wording helps reveal how carriers price, limit, and administer tail coverage in claims-made products.

Form similarity

Form groups by coverage intent

FilingFocus converts each form into a numeric representation of its wording. The map compares distance between those representations, so forms with similar intent, not just keywords, appear closer together. This helps show repeated variants, related form families, and outliers.

Form group
Supplemental extended reporting period
986 forms on chart / latest Jun 23, 2026
More typical wording
Less typical wording
Each dot is a filed form in the selected group. Dots close together tend to use similar wording.
Multi-company use
Multiple products
Multi-state rollout
Single company/product
Larger dots appear in more filings for the selected group.
Wording signals
Most common wording
SUPPLEMENTAL EXTENDED REPORTING PERIOD ENDORSEMENT
GA 488 12 22
31 filings
The Cincinnati Casualty Company + 2 more
Commercial General Liability
Less common wording
CYBER LIABILITY AND PRIVACY CRISIS MANAGEMENT EXPENSE WITH SUPPLEMENTAL EXTENDED REPORTING PERIOD - MONTANA
ECO-ML-2007-MT (02-23)
1 filing
Greystone Insurance Company
Commercial Package

Where this language appears

Matching form records, product lines, state activity, and recent examples for this coverage language.

Matching form records

Recent records

Product submissions

Companies

Sample form language

A representative form excerpt for this topic, with the form number and edition date shown the way insurance teams usually identify versions.

Selected form

Claims-Made Excess Coverage Supplemental Extended Reporting Period Endorsement

Form #: XS 4042 04 24

The Cincinnati Indemnity Company

Commercial Umbrella and Excess

MS | Jun 18, 2026

This excess endorsement shows that supplemental tail coverage can depend on a matching primary supplemental reporting period and timely premium payment.

Supplemental ERP conditions

This endorsement will not take effect unless:
    1. A primary Supplementary Extended Reporting Period Endorsement has been purchased and is valid and collectible at the limit of insurance for "underlying insurance" specified in the Schedule of Underlying Insurance and covers the same reporting period as this endorsement; and
    2. The additional premium for this endorsement is paid when due. If that premium is paid when due, this endorsement may not be cancelled.

Selected excerpt from this form.

Notable language points

  1. 01Requires a matching primary supplemental reporting period before the excess endorsement takes effect.
  2. 02Makes the endorsement conditional on payment of additional premium.

Related insurance form pages

Endorsements

Endorsements show how carriers add, limit, exclude, or amend coverage language.

Related coverage topics

Extended reporting period

Review extended reporting period in admitted P&C endorsements, including matching form records, product lines, common form names, and recent filings.

Prior acts exclusion

Review prior acts exclusion in admitted P&C endorsements, including matching form records, product lines, common form names, and recent filings.