| Kleinwort Benson Ltd v Lincoln County Council | Mistake-based restitutionary claims in unjust enrichment | Forms basis of Plaintiff’s common-law cause of action |
| Deutsche Morgan Grenfell Group plc v Inland Revenue Comrs | Mistake of law and limitation rules | Supports duration of Plaintiff’s claim period |
| Sempra Metals Ltd v Inland Revenue Comrs | Restitutionary award of compound interest | Key authority invoked to justify common-law compound interest |
| Woolwich Equitable Building Society v Inland Revenue Comrs | “Woolwich” restitution for tax paid ultra vires | Plaintiff’s alternative basis for limited-period claims |
| Test Claimants in the FII Group Litigation v Revenue and Customs Comrs | Scope of Woolwich principle; EU law compatibility | Relied upon for EU law right to interest |
| Marks & Spencer plc v Customs and Excise Comrs | Incompatibility of retroactive limitation changes with EU law | Explains why old VAT claims were still recoverable |
| Fleming v Revenue and Customs Comrs | Disapplication of shortened limitation for pre-1996 claims | Enables historical VAT recovery beyond 3 years |
| Investment Trust Companies v Revenue and Customs Comrs | Construction of section 80 as exclusive remedy | Supreme Court followed similar logic for interest |
| F J Chalke Ltd v Revenue and Customs Comrs | Earlier Chancery view on interest exclusion | Court distinguished reasoning but reached same result |
| R (Quintavalle) v Secretary of State for Health | Purposive statutory interpretation | Guided reading of section 78 |
| Royal College of Nursing v DHSS | Contextual construction of legislation | Cited within interpretation discussion |
| London, Chatham & Dover Railway Co v South Eastern Railway Co | No interest at common law on debts | Historical backdrop to statutory scheme |
| President of India v La Pintada Cia Navigacion SA | Limited exceptions for interest as damages | Highlights previous common-law position |
| Johnson v The King | No interest in money-had-and-received | Shows statutory scheme was more generous |
| Hadley v Baxendale | Foreseeability test for damages | Referred to illustrate “special damage” interest |
| R (Wells) v Secretary of State for Transport | Principle of effectiveness | Cited by CJEU and discussed by Court |
| i-21 Germany GmbH v Federal Republic of Germany | Principle of effectiveness | Part of CJEU authority list |
| San Giorgio | Right to repayment of charges contrary to EU law | Central EU precedent on refunds |
| Metallgesellschaft Ltd v Inland Revenue Comrs | Right to interest on prematurely levied tax | CJEU relied on; Supreme Court analysed |
| Weber’s Wine World Handels-GmbH | Reimbursement principles under EU law | Quoted in CJEU judgment |
| MyTravel plc v Commissioners of Customs and Excise | Effectiveness principle applied | Cited by CJEU |
| British Sugar plc v Rural Payments Agency (with Zuckerfabrik Jülich AG & Tereos) | Interest on invalidly levied EU levies | Used by lower court to support Plaintiff |
| Irimie v Administratia Finantelor Publice Sibiu | Interest from date of payment; adequacy | Supreme Court distinguished scope |
| Marshall (No 2) | Full compensation under Equal Treatment Directive | Lower courts analogised; Supreme Court rejected analogy |
| Rewe-Zentralfinanz eG | National limitation periods and EU rights | Supports reasonableness of three-year limit |
| Palmisani v INPS | Limitation periods – effectiveness | Cited in discussion of time limits |
| Fantask A/S v Industriministeriet | Limitation periods – refunds | Referenced to show no full-loss principle |
| Société Roquette Frères v Commission | Interest as ancillary issue | Background on national discretion |
| Express Dairy Foods Ltd v Intervention Board | Interest governed by domestic law | Cited similarly |
| Ansaldo Energia SpA v Amministrazione delle Finanze | Ancillary nature of interest | Supports member-state discretion |
| von Colson v Land Nordrhein-Westfalen | Effectiveness in discrimination context | Distinguished from present tax case |
| Wortmann KG v Hauptzollamt Bielefeld | Interest on duties after EU regulation annulled | Cited as consistent with court’s interpretation |
| Comateb v Directeur Général des Douanes | Repayment of unlawful charges | Part of CJEU case chain |