The hammer clause: what happens if you refuse a settlement

A hammer clause is a settlement condition in a liability policy. Your insurer cannot settle without your consent, but if you refuse a settlement it recommends and the claimant would accept, the insurer's obligation is capped. A full hammer stops it at the settlement amount plus defense costs spent to that point. A soft hammer splits what happens next, often 80/20, 70/30 or 50/50.

Why the clause exists

The commercial general liability form lets the insurer run the claim. In the ISO CG 00 01 04 13 text, the insurer "may, at our discretion, investigate any offense and settle any claim or 'suit' that may result," and an insured who pays or assumes an obligation without the insurer's consent does so at its own cost. Nothing in that form asks the policyholder to approve a settlement.

professional liability and management liability policies (see Directors and officers (D&O) insurance explained) work differently, because a settlement is not only money. A physician worries about a report to the licensing board and the National Practitioner Data Bank. Under 45 CFR 60.7, any entity that pays a practitioner's malpractice claim, including an insurance company, must report the payment. An engineer or lawyer worries about a pattern of paid claims at renewal (lawyers' professional liability insurance: coverage and key terms and medical malpractice insurance for physicians and practices cover those two professions). A board worries that paying one shareholder invites the next. So these forms give the insured a veto: no settlement without written consent.

A veto with no price would let a policyholder refuse a sensible $150,000 settlement, go to trial and send the insurer the bill for a $1 million verdict. The hammer clause is the counterweight. You may say no, but you carry some or all of the cost of being wrong.

The three versions

A broker's guide from Pearl Insurance sorts consent clauses into three types, and the trade generally uses the same ones:

Which one you have is a policy-wording question and varies by carrier, product and endorsement. Lawyers' and physicians' forms, D&O, employment practices liability and cyber forms each use different mixes, so look at the form you are actually buying.

How the wording reads

The clause is usually a short paragraph in the defense and settlement section. In plain terms (an illustration, not any carrier's wording), it runs like this:

1. The insurer may recommend a settlement. Usually it must be one the claimant has agreed to accept.
2. The insured may refuse. The insurer cannot settle over the insured's objection.
3. The cap applies. If the insured refuses, the insurer's total liability for that claim cannot exceed the amount of the refused settlement, plus the claim expenses it incurred before the refusal.
4. A soft hammer adds a percentage. The insurer also pays its stated share, such as 50% or 80%, of covered loss above that figure.

Two phrases decide disputes. "Recommends" matters because the clause is not triggered until the insurer actually puts a specific, acceptable settlement in front of you. "Reasonably" matters because some clauses cap the insurer only if the refusal is unreasonable, while others apply the cap whatever your reason.

A hypothetical comparison

Say a consulting firm is sued for $2 million. The claimant would settle for $150,000, the insurer recommends it, and the firm refuses because it wants to protect its reputation. The insurer has spent $60,000 on defense so far. The case goes to trial. The firm loses, and the judgment is $900,000, with $240,000 more in defense costs. Assume a $2 million limit and ignore the retention.

The numbers are illustrative only. How a claim reaches this point is in how professional liability claims unfold. Real clauses differ in whether the cap includes defense costs, whether the insurer keeps defending, and how the percentage is applied.

What the courts have said

Courts read hammer clauses as written, which is why the wording matters.

• In Ballard v. Admiral Insurance Co., the South Carolina Court of Appeals affirmed judgment for a legal malpractice insurer, as reported by South Carolina Lawyers Weekly in July 2023. The insurer wanted to offer $100,000 to settle; the attorney refused because settling could suggest merit, harm her reputation and affect insurability. The policy barred settlement without consent, but refusal ended the duty to defend and capped liability at the proposed amount. The court held the clause had no reasonableness requirement, so her reasons did not matter.
• In Security National Insurance Co. v. City of Montebello, the Ninth Circuit reversed a lower court in an unpublished decision dated February 21, 2017. The excess policy's hammer clause let the insurer tender the difference between its retained limit (less defense costs) and a good-faith settlement demand and be discharged. The court found the $1.5 million demand was made in good faith and said the clause does not require the insured's rejection to be unreasonable; reading that in would rewrite the policy.

Both decisions turn on their own policy language. Another state or another carrier's wording can produce a different result, and a coverage attorney should read the clause in any live dispute.

The hammer does not excuse bad faith

An insurer that invokes a hammer still owes duties in handling the claim. If it unreasonably refuses a settlement within limits, or handles the claim in bad faith, the clause is not a shield; see insurer bad faith: what it is and the remedies. State law on the insurer's duty to settle varies. The hammer also does not widen coverage. A capped insurer can still reserve rights (reservation of rights letters: what they mean and how to respond), and an exclusion can still defeat the claim.

Negotiating the clause before you need it

At binding or renewal, ask your broker for the settlement clause's text and compare:

1. Full or soft hammer, and the percentage. An 80/20 split is a very different risk from 50/50.
2. Whether defense costs continue after a refusal and who pays them. See defense costs inside vs outside policy limits: why it matters.
3. Reasonableness language, in both directions: consent "not to be unreasonably withheld" and a cap that applies only to unreasonable refusals.
4. A written recommendation requirement, and a requirement that the claimant have actually agreed to the figure.
5. Excess policies. The excess carrier may have its own consent clause; check how the layers fit together.
6. Whether a no-hammer endorsement is available for extra premium. Some specialty carriers offer one; many do not.

If a hammer letter arrives

1. Get the demand and the insurer's recommendation in writing. Ask what the cap would be if you refuse.
2. Call the broker and, if the stakes are significant, coverage counsel who is independent of the defense lawyer.
3. Ask your defense counsel for a candid evaluation of verdict range and defense cost through trial.
4. Tell any excess carrier immediately.
5. Weigh the non-monetary factors: license reporting, renewal, reputation and other pending claims. Record why you decide as you do.
6. Respond in writing before the deadline the insurer sets.

Key takeaways

• A hammer clause lets you refuse a settlement but makes you pay for being wrong; a full hammer caps the insurer at the refused amount plus defense costs spent to date.
• A soft hammer shares the excess loss by a set percentage, and some versions share defense costs too.
• The clause is common in professional and management liability policies, not in a standard CGL, which gives the insurer discretion to settle.
• Courts enforce the wording, including cases where the clause had no reasonableness test, so read it before you buy.
• When a recommended settlement arrives, treat it as a coverage and financial decision, with the broker and counsel at the table.