Break-Up Fee
A break-up fee (also called a termination fee) is a contractual payment owed by a party that walks away from a signed M&A agreement under specified circumstances, designed to compensate the non-breaching party for its transaction costs and the opportunity cost of having committed to the deal.
Break-up fees are standard in public company M&A agreements and serve as both a deterrence against opportunistic deal abandonment and a form of liquidated damages for the non-breaching party. There are two main variants: the seller break-up fee and the reverse break-up fee.
A seller break-up fee — sometimes called a topping fee or fiduciary out fee — is paid by the target company to the acquirer if the target's board accepts a superior competing offer and terminates the agreement. Delaware law requires public company boards to retain fiduciary outs, meaning the board must be able to accept a clearly superior offer even after signing. The break-up fee compensates the original buyer for its transaction costs (due diligence, legal, financing commitment fees) and the value lost from not pursuing alternative deals during the exclusivity period. Seller break-up fees typically range from 2% to 4% of deal value in public transactions.
A reverse break-up fee is paid by the acquirer to the target if the buyer terminates the deal — most commonly because it fails to obtain financing or regulatory approval. Reverse break-up fees became prevalent after the 2008 financial crisis, when several heavily leveraged buyouts collapsed due to financing failures. They are particularly common in private equity-led transactions where debt financing is a key deal condition. Reverse break-up fees typically range from 3% to 6% of deal value and may serve as the seller's exclusive remedy against the buyer, capping seller recovery and functioning as a put option for the buyer to exit the deal.
For merger arbitrage investors, the size and structure of break-up fees are critical inputs to assessing deal risk. A large reverse break-up fee signals the buyer is serious about closing but may also indicate a complex financing or regulatory risk. A seller break-up fee should be assessed in the context of the target's competitive landscape — a target in a hot sector may be more likely to attract a competing bid.