Why Reps and Warranties Insurance Is Failing Some Buyers in 2026

Representations and warranties insurance was supposed to take the friction out of private company deals. A buyer worried about hidden problems in the business it is acquiring buys a policy, the seller walks away with most of the purchase price instead of leaving millions in escrow, and an insurer steps in to cover losses if the seller's promises turn out to be wrong. The product now appears in roughly 99 percent of private target acquisitions. In 2026, though, a growing share of those policies is ending in dispute, and the pattern is worth understanding before you rely on one.

The shift matters because reps and warranties insurance, often shortened to RWI, sits at the center of how risk gets divided in a sale. When it works, it lets both sides close cleanly and move on. When a claim is denied, the buyer that thought it was protected discovers it is carrying a loss it expected someone else to absorb. Several law firms tracking deal litigation report that 2026 has brought a clear increase in these fights, driven less by bad faith than by how the policies were underwritten and how the diligence behind them was performed.

What the Policy Actually Promises

Start with what RWI does and does not cover, because the gap between expectation and reality is where most disputes live. A reps and warranties policy backs the seller's statements about the business: that the financial statements are accurate, that there is no undisclosed litigation, that the company complies with applicable laws, that key contracts are in force. If one of those statements proves false after closing and the buyer suffers a loss, the insurer pays, subject to a deductible (the retention) and the policy limit.

What the policy does not cover is anything the buyer already knew. Every RWI policy contains a "known loss" exclusion, which removes coverage for matters the deal team was aware of before signing or closing. The logic is straightforward. Insurance is meant to cover surprises, not problems the buyer identified and chose to proceed past. The difficulty is that "known" is a slippery word, and insurers in 2026 are reading it more aggressively than buyers expected.

Why Claims Are Getting Denied

The current wave of disputes traces to a simple dynamic. Insurers wrote a large volume of policies over the past several years, and those policies are now maturing into claims. Facing more claims than the pricing assumed, insurers are scrutinizing each one with more rigor, and the known loss exclusion has become the most common ground for pushing back.

Here is how it plays out. A buyer's quality of earnings provider or legal team flags an issue during diligence, perhaps a customer concentration risk, an aggressive revenue recognition practice, or a pending regulatory question. The deal proceeds anyway, often because the buyer judged the risk manageable or priced it into the deal. Months after closing, the issue produces a real loss. The buyer files a claim. The insurer pulls the diligence reports, finds the issue noted in a footnote or a data room memo, and argues the buyer knew about it before closing. Coverage denied.

The second friction point is the definition of a breach itself. Insurers are examining whether the seller's representation was actually false at closing, or whether the problem developed afterward, which the policy would not cover. These are genuine interpretive questions, but the practical effect is that buyers are spending time and legal fees fighting for coverage they assumed was settled.

The Earnout Problem Running Alongside It

RWI disputes are not happening in isolation. The same valuation uncertainty that has slowed dealmaking in 2026 has pushed buyers and sellers back toward earnouts, where part of the purchase price depends on the business hitting future targets. Earnouts bridge a price gap, but they also create their own disputes, and the two trends compound each other.

Most earnout fights come down to a handful of recurring triggers. The buyer controls the business after closing and makes decisions that affect whether the targets are met. The earnout is tied to a precise metric like EBITDA, a measure of earnings before interest, taxes, depreciation, and amortization, and the parties disagree over how to allocate corporate overhead or treat a bolt-on acquisition. The contract defines an "extraordinary event" loosely enough that both sides can read it in their favor. When a seller believes the buyer steered the business to avoid paying, litigation follows.

The common thread between RWI denials and earnout disputes is that both are failures of precision in the deal documents. The risk was real, both sides knew it existed, and the paperwork did not pin down clearly enough who owned it.

What This Means for Buyers and Sellers

For buyers, the lesson is that RWI is not a substitute for careful diligence; it depends on it. The quality of your diligence record now cuts both ways. Thorough work protects you from overpaying, but anything your team flags and documents can later be used to argue you knew of a problem and forfeited coverage. That does not mean diligence should be thinner. It means the deal team and the insurance broker need to work from the same information, so that known risks are addressed in the purchase agreement or priced into the deal rather than left to an RWI claim that will likely be denied.

For sellers, the appeal of RWI has always been a cleaner exit with less money tied up in escrow. That benefit still holds, but sellers should not assume a policy makes the buyer's recourse disappear. A denied claim can pull the seller back into a dispute, particularly where the policy excludes a matter and the buyer turns to the indemnification provisions in the agreement instead.

The Forward Look

Three things are worth watching through the rest of 2026. First, insurers are likely to keep tightening underwriting and exclusion language as claims mature, which means future policies may cover less than the ones written two years ago. Second, expect more deals to handle significant known risks through specific indemnities and escrows rather than leaning entirely on insurance. Third, as earnouts stay in fashion while valuation gaps persist, the drafting of earnout provisions will get sharper, because the parties writing them today have watched how loosely worded versions ended up in court.

None of this makes RWI a poor tool. For the surprises it was designed to cover, it still does its job, and it still enables cleaner closings than the escrow-heavy structures it replaced. The change is that buyers can no longer treat a policy as a backstop that removes the need for disciplined diligence and precise drafting. The protection is only as good as the work behind it.