Clause

Ultimate Net Loss Clause

Expert-reviewed Updated: 2026-09-03 Expert-reviewed: 2026-09-04 (Guido Hesse, Hesse Group Holding AG) Version 0.1.0

The ultimate net loss clause defines which amounts – the principal loss, claims expenses and recoveries from other cover – are taken into account when calculating the net loss recoverable under a reinsurance treaty.

Clause type
Definition
Origin/Market
Reinsurance market
Favours
Neutral
Negotiability
Market standard

Purpose

So that cedent and reinsurer apply the same figure as the relevant loss, the clause exhaustively defines the term “ultimate net loss”: the amount actually paid or payable by the cedent, including attributable claims settlement expenses, reduced by all recoveries from subrogation, salvage or other, prior reinsurance.

Effect and limits

The precise definition determines whether and to what extent legal, expert and internal handling costs are included in the recoverable loss amount, and in what order other layers of cover (retention, other reinsurance layers) must be applied before the treaty in question. Absent a precise definition, multi-layer programmes regularly give rise to settlement disputes.

Negotiation and practice

Whether external and internal claims handling costs (loss adjustment expenses) are included in full, proportionally, or not at all, is a key negotiation point that materially affects the effective level of cover.