Legal Due Diligence · glossary

Long stop date

A long stop date is the last date by which a deal's conditions must be met, such as a competition or regulatory approval. If they are not met by then, the contract usually lets either party end it, and nobody has to complete. Parties choose a date that leaves room for the slowest approval.

The date by which the conditions must be met, or either party may walk away. Sunrise signed with a long stop of 31 March 2027, leaving a margin around the regulator's timetable. Chapter 8

Explained in Chapter 8, Regulatory, Compliance and AML, of Legal Due Diligence.

Also explained in M&A Foundations and Restructuring Plans.

How it comes up, in Chapter 8
The SPA makes the approval a condition precedent: completion happens only once the approval is given (clause 5 of the SPA). It pairs the condition with a long stop date. If the condition is still unmet on that date, either party may walk away.
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Questions people ask

What does long stop date mean?

The deadline in a contract for its conditions to be met. In a share sale it gives both sides certainty: the deal cannot hang open for ever. A loan that pays for the purchase often stops being available on the same date.

What is a longstop date?

The same idea, written as one word. In a venture deal it can also be the last date in an advance subscription agreement: if no funding round has happened by then, the investor's money turns into shares at the price the agreement sets.

Related terms

Where this term lives

This term is part of one complete fictional deal, with every document attached and a test after every chapter. Open Legal Due Diligence → · All terms A–Z →