Clause

Hammer Clause

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

The hammer clause caps the insurer's liability at the settlement amount it recommended, plus defence costs incurred up to that point, where the insured rejects a settlement the insurer regards as reasonable.

Clause type
Condition
Origin/Market
US market
Favours
Insurer
Negotiability
Negotiable

Purpose

Under policies granting a consent-to-settle right, the insured can reject a settlement proposed by the insurer and insist on judicial determination instead. Without a counterweight, this veto right would strip the insurer of all cost control: the insured could refuse every settlement without bearing any financial risk itself. The hammer clause — also known as the “blackmail settlement clause” — creates that counterweight by placing the consequences of a refusal on the insured.

Effect and limits

Under a full (“hard”) hammer clause, rejecting a proposed settlement caps the insurer’s liability at the proposed settlement amount plus defence costs incurred up to the point of refusal; all further costs — additional defence, a higher settlement, or a judgment — fall solely on the insured. The “soft” or “coinsurance” variant instead splits these additional costs proportionally between insurer and insured, commonly in a ratio of 50/50 up to 80/20 in the insurer’s favour. The clause is found mainly in professional indemnity, D&O and employment practices liability policies where the insured has a say in settlement decisions.

Negotiation and practice

Insureds should actively seek a soft rather than a hard hammer clause, as this materially reduces the financial risk of a well-founded refusal. The clause is particularly relevant in employment practices liability and D&O cover, where settlements are frequently rejected for reputational reasons even though they would make sound insurance sense.