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An auditor discovers an undisclosed tax liability six months after your deal closes. The seller has already distributed the proceeds to investors. Who pays?
That’s the scenario W&I insurance was built for. Warranty and Indemnity (W&I) Insurance, also called Representations and Warranties (R&W) Insurance in the United States, transfers breach-of-warranty risk from the seller to an insurer, letting both sides close the deal without a prolonged escrow arrangement or the risk of litigation hanging over the transaction.
This guide breaks down how W&I policies work, who pays, what they cover, what they cost, and how your legal infrastructure, from entity records to contract management, directly affects the coverage you can get.
Key Takeaways
What is warranty and indemnity insurance?
Warranty and Indemnity (W&I) Insurance is a specialist insurance product used in M&A transactions. It protects the insured party against financial losses from breaches of the seller’s representations and warranties in the Sale and Purchase Agreement (SPA). In most deals today, the buyer purchases the policy and claims directly against the insurer if a breach is discovered after closing.
In the United States, the same product is called Representations and Warranties (R&W) Insurance. The coverage mechanics are broadly similar, although policy wording, exclusions, and deal thresholds can vary by jurisdiction. If you’re working on a cross-border transaction, you’ll encounter both terms. They refer to the same thing.
W&I insurance vs. R&W insurance: the same product, two names
“W&I insurance” is the standard label in the UK, Europe, and most of Asia. “R&W insurance” is the US and Canadian equivalent. The distinction matters in one scenario: if your deal involves US-market underwriters, they’ll price and structure the policy using the R&W framework, which can mean slightly different exclusion language and deal thresholds.
For practical purposes, treat them as equivalent. This guide uses “W&I insurance” throughout, but every point applies equally to R&W insurance.
How W&I insurance works in an M&A transaction
W&I insurance sits on top of the SPA. The seller makes a set of representations and warranties: statements about the legal, financial, tax, and operational condition of the business. If any of those statements turn out to be false and cause a financial loss after closing, the buyer normally has a claim against the seller.
W&I insurance replaces or supplements that direct claim. Depending on the policy structure, the buyer claims against the insurer instead of the seller, or the insurer pays on the seller’s behalf.
The role of the Sale and Purchase Agreement (SPA)
The SPA is the contractual foundation on which the W&I policy is based. Insurers read the warranty schedule carefully: they underwrite the specific warranties given in your deal, not a generic set.
That means the scope of your SPA warranty pack directly determines what the policy covers. Narrow, heavily qualified warranties produce a narrower policy. Insurers also assess the disclosure schedule, which contains the documents the seller produces to qualify the warranties, as part of underwriting.
Buy-side vs. sell-side policies
| Buy-side policy | Sell-side policy | |
|---|---|---|
| Who holds the policy | Buyer | Seller |
| Who makes the claim | Buyer claims directly against insurer | Buyer claims seller first; insurer may cover seller’s loss |
| Market prevalence | Dominant; over 90% in Aon placements | Less common; buyer claims seller first |
| Main benefit | No need to pursue seller post-closing | Covers seller’s liability; buyer claims seller first |
| Premium paid by | Usually negotiated; buyer often pays | Usually negotiated; seller often pays |
Buy-side policies have become the market default. They allow the seller to take a clean exit with no escrow, holdback, or ongoing liability exposure while giving the buyer a direct path to recovery without litigating against the selling party.
What W&I insurance covers and what it excludes
A W&I policy covers financial losses arising from a breach of warranty in the SPA. In practice, this typically includes:
- Inaccuracies in financial statements
- Undisclosed tax liabilities
- Title defects and ownership disputes
- Breaches of material contracts
- Regulatory or licensing issues not disclosed in the disclosure schedule
- Intellectual property ownership problems
- Employment and labor law breaches
Coverage periods run up to 3 years for general business warranties and up to 7 years for fundamental warranties (title, authority, capacity) and tax warranties. Exact periods vary by jurisdiction and insurer.
Standard exclusions to know
W&I insurance doesn’t cover everything. Standard exclusions include:
- Known issues: anything identified during due diligence or otherwise known to the insured, subject to the policy wording
- Forward-looking statements: projections, forecasts, and future performance warranties
- Purchase price adjustments: pre-agreed mechanisms for working capital or debt/cash adjustments
- Pension liabilities: often excluded or subject to sub-limits
- Environmental liability: frequently excluded in standard policies; specialist covers are available separately
- Fraud by the insured: the policy generally excludes losses caused by the insured’s own fraud or deliberate misrepresentation
- Transfer taxes and VAT: transfer taxes and VAT are typically outside standard coverage
Read exclusions carefully. The gap between what a seller warranted and what the policy actually covers can be significant.
Running an M&A transaction?
Start with rigorous due diligence because it directly determines the scope of coverage you can get from a W&I insurer.
How much does W&I insurance cost?
Premium pricing varies by market conditions, deal complexity, and insurer appetite. The current market range is broadly:
- Premium: 1%–2% of the policy limit (complex deals can reach 3.5%)
- Policy limit: typically 10%–30% of the deal’s enterprise value
- Retention/deductible: usually 0.5%–1% of enterprise value; can reach zero in competitive auction processes
- Additional costs: underwriting fees, legal costs for policy negotiation, and broker fees
A practical example: on a €50M deal with a €10M policy limit and a 1.5% premium, the insurance cost is €150,000. That premium is €150,000, while an equivalent escrow would tie up €10M of sale proceeds for two to three years.
Premium rates fell in some markets between 2020 and 2024 as insurer capacity grew and competition intensified. Pricing remained competitive in many markets, but 2025 market reporting showed rate increases in several regions.
The W&I insurance underwriting process, step by step
Getting a W&I policy in place takes 2–5 weeks from initial contact to issuance, assuming due diligence is well advanced. The process runs in three phases.
At a glance: securing W&I cover
Three phases from initial insurer assessment to policy issuance.
Initial assessment and non-binding indications
- Approach several insurers with a deal summary
- Cover transaction size, structure, sector, and warranty package
- Receive preliminary premium, retention, and risk indications
Underwriting and due diligence review
- Select an insurer
- Review the SPA, disclosure schedule, and due diligence reports
- Answer questions from the underwriting team
Policy negotiation and issuance
- Receive a draft policy from the insurer
- Negotiate the policy alongside the final SPA
- Complete signing concurrently with or shortly before closing
Is W&I insurance right for your transaction?
W&I insurance isn’t suitable for every deal. The practical thresholds are:
- Minimum deal size: many insurers set minimum transaction values, often around €10M–€25M, but the product is most cost-effective above €50M. The product is most cost-effective above €50M.
- Auction processes: W&I insurance is common in competitive auctions, where sellers may prefer not to negotiate separate liability packages with multiple bidders
- Private equity exits: PE sellers routinely require W&I insurance to allow clean distribution of sale proceeds without a long-tail liability reserve.
- Complex seller profiles: where the seller is distressed, a consortium, or a regulated fund, W&I insurance removes the credit risk of relying on seller indemnity.
- Cross-border deals: where enforcing a judgment against a foreign seller is impractical, a local insurer provides a more reliable recovery path.
If your transaction is sub-€10M, the premium-to-coverage ratio is unlikely to make commercial sense. A well-negotiated escrow is usually more cost-effective at that scale.
Why entity data accuracy is a warranty risk
Entity-level warranties are among the most commonly disputed areas of W&I coverage. The seller typically warrants that the target company’s ownership structure is accurate, that all mandates and signatories are correctly recorded, that the cap table reflects actual shareholding, and that statutory filings are current across every jurisdiction.
If any of that is wrong, the buyer has a warranty claim. And wrong entity data is far more common than most sellers realize, especially in groups that have grown through acquisitions, managed multiple jurisdictions, or relied on spreadsheets and email threads to track share registers over time.
Consider a buyer discovering post-closing that a subsidiary’s shareholding record doesn’t match the group’s corporate books, or that a signatory mandate expired before a material contract was signed. Both can trigger warranty claims. Both are exactly the kind of disclosure gap that underwriters look for, and may exclude from coverage.
The practical answer for sellers preparing for a transaction is to get entity data audit-ready before the process starts. That means a single, current, verifiable record of ownership structures, mandates, capital transactions, and compliance filings across every entity in the group.
DiliTrust’s Entity Management keeps that record centralized and current, with full audit trail, real-time org charts, and automatic compliance deadline tracking across jurisdictions. When a buyer’s legal team asks for a complete, audited view of your shareholding structure as of a specific date, you can produce it accurately and fast, rather than reconstructing it from scattered systems under deal pressure. Explore cap table management for M&A transactions.
Preparing your entity data for a transaction?
DiliTrust Entity Management gives legal teams a single, auditable source of truth for ownership structures, mandates, and corporate compliance, across every subsidiary, in every jurisdiction.
Managing SPA obligations and warranty claim deadlines post-closing
Getting the policy in place is not the end of W&I management. It’s the beginning of a new obligation tracking problem.
W&I policies set hard deadlines. General business warranty claims must typically be notified within 2–3 years of closing. Fundamental and tax warranty claims run longer, up to 7 years, but still have defined notification windows. Missing a deadline doesn’t reduce your claim. It can bar recovery entirely, depending on the policy and wording.
Beyond claim notification, the SPA itself creates a web of post-closing obligations: earn-out milestones, restrictive covenants, regulatory filing requirements, transition service arrangements, and representations that survive closing for defined periods. These are legal obligations that need to be tracked, not filed away.
For most in-house legal teams, the risk isn’t that they don’t know the deadline exists, it’s that it lives in a signed contract somewhere in a shared drive, with no automatic reminder and no clear ownership of who monitors it; it’s that the deadline lives in a signed contract somewhere in a shared drive, with no automatic reminder and no clear owner responsible for monitoring it.
DiliTrust Contract Management brings the SPA and all related transaction documents into a single, searchable repository. Key dates, obligation owners, and notification periods are tracked with automated alerts, so your team gets a reminder well before a deadline expires rather than after it. The same platform handles post-closing agreements, including TSAs and earn-out schedules, in one place, with full version history and e-signature capability.
Why due diligence quality determines your coverage
Before a W&I insurer will provide coverage for a warranty, it needs to believe the warranty was properly investigated. That’s the underwriter’s core question: did the buyer actually look at this, or is the warranty covering something nobody checked?
The answer lives in your due diligence record. Insurers assess the depth of the process itself, not just the conclusions. A thorough, well-documented exercise signals that the disclosed information is reliable and that unknown risks were genuinely investigated. Gaps in coverage typically track gaps in due diligence: if financial due diligence is thin, financial warranty coverage gets restricted. If legal diligence missed material contracts, contract warranties may be excluded.
A well-organized virtual data room is part of that infrastructure because it demonstrates that documents were systematically managed, access was controlled, and the Q&A process was tracked. DiliTrust’s Dataroom supports exactly that kind of structured, auditable due diligence environment.
What’s changing in W&I insurance in 2025–2026
The W&I market isn’t static. Three trends are reshaping how deals are structured and policies are priced.
Synthetic W&I insurance
In a traditional deal, the seller gives warranties and the insurer covers breach of those warranties. In a synthetic W&I structure, the insurer steps in as the warranty provider, when there’s no seller in a position to give warranties.
Synthetic W&I is common in:
- Receivership and insolvency sales, where the administrator can’t warranty the business
- Secondary PE transactions, where the selling fund has limited information rights
- Asset carve-outs, where the scope of the seller’s knowledge is limited to specific business lines
The insurer underwrites the transaction independently and issues a policy with no underlying seller warranty. The buyer pays a higher premium for this broader assumption of risk.
New breach cover and materiality scrapes
Standard W&I policies may apply material thresholds of warranty breaches. Many deals now include “materiality scrape” provisions in the SPA, which disregard materiality qualifiers when assessing whether a breach occurred, calculating damages, or both. Insurers are increasingly willing to back these provisions, which broadens coverage materially.
“New breach cover” is a related development: some insurers now offer coverage for warranties breached between signing and closing and discovered during the interim period, bridging the gap between signing date and the policy’s effective date.
Premium compression and broader market adoption
The influx of insurer capacity between 2020 and 2024 compressed premiums significantly. Rates that ran at 1.5%–2% in 2019 fell to 1%–1.5% in many markets by 2024. The CMS M&A Study 2024 confirmed that W&I insurance was used in 38% of deals in the €25M–€100M range, a segment where the product was considered niche just five years earlier.
Frequently asked questions
What is the difference between W&I insurance and R&W insurance?
There is no fundamental difference in the product. “W&I insurance” is the standard term in the UK, Europe, and Asia, while “R&W insurance” is the standard US and Canadian term. Policy wording, exclusions, and underwriting practice can vary by jurisdiction.
Who pays the W&I insurance premium?
In a buy-side policy, the buyer is typically the insured party, but the premium may be paid by the buyer, the seller, or shared between them. The same commercial flexibility applies to a sell-side policy. In competitive auction processes, the cost is sometimes factored into deal economics and effectively shared through purchase price negotiations.
What is the minimum deal size for W&I insurance?
Most insurers require a minimum transaction value of €10M–€25M. The product is most cost-effective above €50M, where the premium-to-coverage ratio compares favorably to a two- to three-year escrow arrangement.
Can W&I insurance replace an escrow?
A buy-side W&I policy can reduce or remove the need for seller-funded escrow by giving the buyer direct recourse against the insurer, depending on the deal terms and policy wording. This is one of the primary commercial drivers for sellers choosing to put W&I insurance in place, because it allows clean and immediate distribution of sale proceeds.
What happens if a warranty claim deadline is missed?
he claim may be forfeited, depending on the policy wording and applicable law. W&I policies set hard notification deadlines aligned with the SPA’s warranty claim periods. Missing those deadlines, even with a valid underlying breach, can mean no recovery. This is why post-closing obligation tracking, in a dedicated contract management system rather than a shared drive, is a practical risk management issue for buyers.
How does entity data quality affect W&I coverage?
Entity-level warranties, including ownership structure, cap tables, mandates, statutory filings, are underwritten closely. If the seller’s entity records are incomplete or inaccurate, those warranty areas may attract exclusions or sub-limits. Sellers who maintain audit-ready entity data through a legal entity management platform are better positioned to give clean warranties and support broader coverage.
How long does it take to get a W&I policy in place?
Typically 2–5 weeks from initial broker contact to policy issuance, assuming due diligence is well advanced. The underwriting review phase is the variable: organized, complete due diligence shortens it; gaps extend it.
What is synthetic W&I insurance?
Synthetic W&I insurance is used when no seller is in a position to give warranties, typically in distressed sales, secondary PE transactions, or asset carve-outs. The insurer underwrites the transaction independently and issues a policy with no underlying seller warranty, at a higher premium to reflect the additional risk assumed.
The legal infrastructure your M&A deal depends on
Explore how DiliTrust supports M&A legal teams, from entity data management to contract lifecycle management and due diligence documentation.
