Binding precedent in England and Wales turns on two questions. Which court will decide the point, and which earlier decisions sit above it in the hierarchy? A decision binds only through its ratio, and only until a court with power to do so departs from it or overrules it. Your research is complete when you can show both.
This guide is written for England and Wales. The UK Supreme Court's own overview of the legal system explains that the UK "does not have a single unified legal system": there is one system for England and Wales, another for Scotland, and a third for Northern Ireland. The Supreme Court hears civil appeals from the whole UK and criminal appeals from England, Wales and Northern Ireland. If your matter is in a Scottish or Northern Irish court, check that jurisdiction's own rules on precedent.
What makes a precedent binding in England and Wales?
The Supreme Court restated the doctrine in Willers v Joyce [2016] UKSC 44, a decision of nine justices. Lord Neuberger described the doctrine of precedent as "fundamental" in a common law system and said that decisions on points of law by more senior courts "have to be accepted by more junior courts."
At paragraph 5 he set out the basic hierarchy on issues of law. Circuit Judges are bound by decisions of High Court Judges, the Court of Appeal and the Supreme Court. High Court Judges are bound by the Court of Appeal and the Supreme Court. The Court of Appeal is bound by the Supreme Court.
| Authority | Binds | Notes |
|---|---|---|
| UK Supreme Court (and the House of Lords before it) | Court of Appeal, High Court and Circuit Judges | Treats its own decisions as normally binding, but may depart under the 1966 Practice Statement |
| Court of Appeal | High Court and Circuit Judges | Bound by its own decisions, subject to the exceptions in Young v Bristol Aeroplane |
| High Court | Circuit Judges | Judges are not technically bound by their peers, but should generally follow them |
| Judicial Committee of the Privy Council | Not binding on courts in England and Wales | Normally of great weight and persuasive value |
| Courts in Scotland and Northern Ireland | Separate systems | Check that jurisdiction's own rules |
Use the hierarchy as a filter, not a substitute for reading. A higher-court case on a neighbouring question may not decide your point at all.
When can the Supreme Court and the Court of Appeal depart from their own decisions?
The Supreme Court. Willers explains at paragraph 7 that the House of Lords used to be bound by its own decisions. That changed with the Practice Statement (Judicial Precedent) [1966] 1 WLR 1234. Under it, earlier decisions are treated as "normally binding", but the court will depart from them "when it appears right to do so". Willers also records that a different view of the law is not enough on its own, and that the Supreme Court "should be very circumspect before accepting an invitation to invoke the 1966 Practice Statement".
The Court of Appeal. Paragraph 8 of Willers states that the Court of Appeal "is bound by its own previous decisions, subject to limited exceptions". It then quotes the passage from Young v Bristol Aeroplane Co Ltd [1944] KB 718, 729 to 730, which the House of Lords approved. The exceptions are:
- The court "is entitled and bound to decide which of two conflicting decisions of its own it will follow."
- It "is bound to refuse to follow a decision of its own which, though not expressly overruled, cannot, in its opinion, stand with a decision of the House of Lords."
- It "is not bound to follow a decision of its own if it is satisfied that the decision was given per incuriam."
The High Court. Paragraph 9 says puisne judges "are not technically bound by decisions of their peers, but they should generally follow a decision of a court of co-ordinate jurisdiction unless there is a powerful reason for not doing so." Where there are two inconsistent first-instance decisions, the second should be followed unless there are cogent reasons to the contrary.
Treat "per incuriam" with care. It is a narrow exception, not a label for a decision you disagree with. Record exactly which binding authority or provision the earlier court is said to have missed.
How do you identify the ratio rather than obiter remarks?
Only the ratio binds. The Court of Appeal restated the test in White v Alder [2025] EWCA Civ 392 at paragraph 18. Relying on R (Kadhim) v Brent LBC Housing Benefit Review Board, it said the ratio "is any rule of law expressly or impliedly treated by the judge as a necessary step in reaching his conclusion, having regard to the line of reasoning adopted by him." It added that a later court "is not bound by a proposition of law assumed by an earlier court that was not the subject of argument before it or consideration by that court."
Obiter remarks do not bind, but they can still carry weight. In THG PLC v Zedra Trust Company (Jersey) Ltd [2024] EWCA Civ 158, at paragraph 59, the Court of Appeal described an earlier House of Lords analysis that, "because it was obiter, did not in any event bind the court", and noted that the court in that earlier case had still chosen to follow it.
Read each judgment in this order: the issues, the material facts, the arguments, the authorities considered, the reasoning and the order made. Then ask which rule of law was a necessary step to the result.
| Passage | Role | What to do |
|---|---|---|
| Answer to an issue the court had to decide | Possible ratio | Test it against the facts, reasoning and order |
| Wider statement not needed for the result | Possible obiter | Cite as persuasive only, and say so |
| Point assumed but not argued or considered | Not binding on that point | Check whether the point was actually argued and considered |
| Point conceded by the parties | Can still become part of the ratio | Read how the court treated the concession, and whether it reserved the point |
| Dissenting judgment | Not the decision of the court | Do not present it as the ratio |
| Multiple concurring judgments | Ratio may differ between judges | Identify the reasoning shared by the majority |
Where judges in the majority give different reasons, write down each judge's reasoning before you state the rule. Do not take the ratio from a headnote.
Are Privy Council decisions binding?
No. Willers holds at paragraph 12 that, because the Judicial Committee of the Privy Council is "not a UK court at all", its decisions "cannot be binding on any judge of England and Wales". They should normally be regarded "as being of great weight and persuasive value". At paragraph 17 the court held that a judge "should never follow a decision of the JCPC, if it is inconsistent with the decision of a court which is otherwise binding on him or her", subject to one qualification.
That qualification is in paragraph 21. Where the point is one of English law, the Board can decide that an earlier decision of the House of Lords, Supreme Court or Court of Appeal was wrong, and can "expressly direct that domestic courts should treat the decision of the JCPC as representing the law of England and Wales." So when a Privy Council case is on point, check whether the Board gave that direction.
How does assimilated EU case law fit in?
EU case law that was kept in domestic law after Brexit is now called assimilated case law. Section 6 of the European Union (Withdrawal) Act 2018 sets the rules, as shown on legislation.gov.uk on 4 October 2026:
- Under section 6(3), questions about the meaning or effect of unmodified assimilated law are decided in accordance with assimilated case law.
- Under section 6(4)(a), the Supreme Court is not bound by any assimilated EU case law. Under section 6(5), in deciding whether to depart from it, the Supreme Court applies the same test as it would to its own case law.
- Under the 2020 Relevant Court Regulations, the Court of Appeal in England and Wales is a "relevant court". It is not bound by retained EU case law, except so far as post-transition case law that binds it has modified or applied that case law, and it applies the same test as the Supreme Court. The legislation.gov.uk site holds these Regulations only in their original, as made, form, so check for later changes.
Section 6 of the Retained EU Law (Revocation and Reform) Act 2023 would replace that test with a list of factors and create a reference procedure for lower courts. On 4 October 2026, legislation.gov.uk marks it as "Prospective" and notes it was not in force at Royal Assent. Check its commencement status before you rely on it.
How do you check whether a precedent has been weakened by later treatment?
Run a forward search on every authority you intend to cite. Search the case name, its neutral citation, every law report citation and any distinctive phrase. A database flag is a lead, not a conclusion. Read the later judgment and decide which proposition it dealt with.
| Later treatment | What it may mean | What to do |
|---|---|---|
| Applied or followed | The later court used the same ratio | Confirm it is the same proposition on comparable facts |
| Distinguished | The rule stands but did not apply on different facts | Record the distinguishing fact |
| Doubted or criticised | The rule stands, but its strength is in question | Disclose it and look for a pending appeal |
| Not followed | A court of equal rank declined to follow it | Check whether a higher court has resolved the conflict |
| Departed from or overruled | The case no longer states the law on that point | Do not rely on it for that point |
| Treated as per incuriam | Decided in ignorance of a binding authority or provision | Verify the exact basis and the part affected |
Use Find Case Law from The National Archives, which describes itself as "the official and free source for judgments and decisions from courts and tribunals in England and Wales", plus UK-wide Supreme Court and Privy Council cases. It also warns that "not all court decisions are written down", and its coverage for most courts starts in the early 2000s. For older cases you will need the law reports.
When you cite, follow the Practice Direction: Citation of Authorities (2012). Where a judgment is reported in the Official Law Reports (A.C., Q.B., Ch., Fam.), "that report must be cited". An unreported case "should not usually be cited unless it contains a relevant statement of legal principle not found in reported authority."
What research workflow reduces the chance of missing a later case?
Use two passes. The first favours recall: collect every plausible authority, alternative term and statutory hook. The second favours precision: rank, read, trace and record only the authorities that support the proposition.
- Define the deciding court, the jurisdiction (England and Wales, Scotland or Northern Ireland), the issue and the relevant date.
- Write the proposition in one sentence, with its elements and exceptions.
- Check statutory text on legislation.gov.uk, including any changes not yet brought into force.
- Find a recent Supreme Court or Court of Appeal judgment that reviews the earlier law.
- Work backwards through each authority it relies on.
- Rank every authority using the hierarchy table above.
- For Court of Appeal decisions, check for conflicting decisions and the Young v Bristol Aeroplane exceptions.
- Work forwards from each key case to your cut-off date.
- Check any Privy Council decision for a direction under Willers, and any EU-derived point under section 6 of the 2018 Act.
- Write a narrow rule with pinpoints, contrary authority and a cut-off date, and have a second researcher retrace the chain.
A documented legal workflow helps a team keep the chain from search to verified source. The same discipline applies to evidence in the litigation readiness plan for in-house teams. For the US equivalent, see how to find binding precedent in US courts.
What should the final precedent check contain?
Before you sign off, confirm each item:
- The deciding court and the jurisdiction are stated.
- Every authority is ranked by court and binding status for that court.
- Statutory text is checked on legislation.gov.uk for the relevant date.
- Each proposition rests on the ratio, with a paragraph pinpoint.
- Points that were conceded, or assumed without argument, are flagged and checked.
- Court of Appeal conflicts and any per incuriam argument are addressed.
- Privy Council and assimilated EU case law are handled under the rules above.
- Every key case is traced forward to the cut-off date.
- Citations follow the Citation of Authorities Practice Direction.
- A second reviewer can rebuild the authority chain.
The best answer is the one another lawyer can retrace. Gotham lets UK legal teams research UK case law and legislation, review contracts at scale and draft in Word, in one workspace. Every answer cites the passage it relies on.
Questions about binding precedent in England and Wales
Is the Court of Appeal bound by its own decisions?
Yes, subject to limited exceptions. In Willers v Joyce [2016] UKSC 44 the Supreme Court restated the three exceptions from Young v Bristol Aeroplane Co Ltd [1944] KB 718: the court decides which of two conflicting decisions of its own to follow; it must refuse to follow a decision of its own that cannot stand with a House of Lords decision; and it is not bound by a decision of its own given per incuriam.
Can the UK Supreme Court overrule its own earlier decisions?
Yes. Since the 1966 Practice Statement the House of Lords, and now the Supreme Court, treats its earlier decisions as normally binding but may depart from them when it appears right to do so. In Willers v Joyce the Supreme Court recorded that it should be very circumspect before accepting an invitation to do so.
Are Privy Council decisions binding on English courts?
No. Willers v Joyce holds that the Judicial Committee of the Privy Council is not a UK court, so its decisions cannot bind judges in England and Wales, though they normally carry great weight. The exception is where the Board, deciding a point of English law, expressly directs that domestic courts should treat its decision as representing the law of England and Wales.
Do UK courts still have to follow EU case law?
Lower courts must still decide questions about unmodified assimilated law in accordance with assimilated case law, under section 6(3) of the European Union (Withdrawal) Act 2018. The Supreme Court is not bound by assimilated EU case law, and the Court of Appeal is not bound by it except where later binding domestic case law has modified or applied it. Section 6 of the Retained EU Law (Revocation and Reform) Act 2023, which would change the test, is shown on legislation.gov.uk as prospective.
