An escrow agreement is a contract under which a neutral third party (escrow agent/stakeholder) holds money, documents, shares or source code for the parties to a transaction and releases them only when clearly stated conditions are met. The term is not defined by statute; it is a descriptive expression grounded in common law notions of delivery in escrow and stakeholding, recognised by case law and standard market practice.Typical uses include purchase price retentions and indemnity escrows in M&A, earn‑outs, real estate deposits, completion deliverables, and software escrow to provide access to source code on supplier insolvency or breach. Key terms set out release conditions, evidence required, timing, interest and permitted investments, fees, the agent’s duties and liability (often as stakeholder or trustee), KYC/AML requirements, dispute resolution and governing law. The agent must act only on the agreed instructions and is not an arbiter of disputes.Usage is broadly consistent across England & Wales, Northern Ireland and Ireland. Scots law does not use the deed‑in‑escrow doctrine in the same way, but stakeholders and solicitor undertakings are routinely used; Scots‑law escrow terms achieve equivalent conditional delivery and release.