Legal Protocols
How W&I Insurance Protects a Founder's Exit Payout
Discover how Warranty & Indemnity insurance removes post-sale escrow liabilities in UK deals.

The 30-Second Definition
Warranty and Indemnity (W&I) Insurance is a specialised insurance policy used in M&A transactions to transfer the financial risk of post-sale legal claims from the transaction parties to the insurance market. Instead of a buyer suing the seller personally if a historical warranty is breached, the buyer files a claim directly against the W&I insurance policy, allowing the seller to achieve a clean exit with minimal cash tied up in escrow.
Achieving a Clean Exit
In a traditional £1M–£50M transaction, a buyer will demand that 5% to 15% of your sale proceeds be locked away in an escrow account for up to two years to protect them against hidden liabilities. For an owner looking to retire or reinvest, having millions of pounds frozen in a third-party bank account is a massive frustration.
W&I Insurance solves this problem by acting as a financial substitute for the escrow account. It allows the seller to walk away with virtually 100% of their completion cash on day one, while providing the buyer with an institutional insurance market to claim against if they uncover structural flaws post-completion.
The Hidden Trap: The Exclusions Schedule
While W&I insurance sounds like the ultimate safety net, mid-market owners frequently get caught out by the strict underwriting process. Insurers are in the business of pricing risk, not buying known problems. They will deploy their own advisors to review the buyer’s due diligence reports and the contents of your Virtual Data Room.
If the underwriting process uncovers an anomaly, it triggers the Exclusions Schedule:
- Known Risks are Excluded: W&I insurance only covers unknown risks. If the diligence process highlights that your employment contracts are non-compliant, your historic R&D tax credits are aggressive, or you have an unresolved customer dispute, the insurer will explicitly exclude those items from the policy.
- The Price Chip Return: The moment an insurer excludes a risk, the buyer's protection vanishes. The buyer will then return to the negotiation table to demand a direct, pound-for-pound deduction from your purchase price, or force you to sign a personal indemnity to cover that specific vulnerability anyway.
Preparing Your Accounts for Underwriting Scrutiny
To successfully place a W&I policy and avoid a long list of exclusions, your corporate records, tax filings, and legal agreements must be meticulously organised long before the insurers review the deal room. High-quality presentation directly correlates to minimal policy exclusions and lower insurance premiums.