Jurisdiction(s):
United Kingdom

Discharge of Contractual Obligations under English Law: Performance, Substantial Performance, Time of the Essence; Actual and Anticipatory Breach, Conditions, Warranties and Innominate Terms, Election, Affirmation, Termination Risks and Variation

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Practice notes

Introduction

This Practice Note forms part of our LLB Contract Law series, carefully tailored with law students in mind. It examines the doctrine governing the discharge of obligations, with particular attention to discharge by performance and by breach, setting these within the wider context of contractual termination. It considers the thresholds for valid performance, such as strict compliance, substantial performance, entire versus divisible obligations, and the importance of time clauses where relevant. It then assesses breach of contract in its forms (actual and anticipatory) and identifies when breach is grave enough to justify termination by the innocent party, with close treatment of conditions, warranties, and innominate terms. The Practice Note also tackles the doctrine of election, the perils of wrongful termination, and the effects of acceptance in sale of goods contracts. Throughout, it weaves in leading authorities and statutory rules to show how the law mediates certainty with fairness. By blending doctrinal exposition with judicial reasoning and critical perspective, the Practice Note aims to equip students with the analytical depth needed for higher-grade assessment in contract law.

Overview and conceptual framework

After a contract is validly concluded, the law assumes the parties must fulfil their primary obligations—those duties that arise...

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Web page updated on 21/05/2026

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