If you’ve spent three years getting comfortable with Harvard or APA and then landed on a law degree, OSCOLA referencing probably felt like starting from scratch. Numbers instead of names in brackets. Footnotes instead of a line in the text.
A bibliography split into tables you’ve never seen before. None of it maps onto what you already know.
This guide covers the whole system in the order you’ll actually need it: why OSCOLA works the way it does, how to cite a case, how to cite legislation, how to handle books and journal articles, how the bibliography fits together, and the five mistakes that lose UK law students the most marks. Work through it once properly and the rest of your degree gets considerably easier.
Why OSCOLA Referencing Uses Footnotes Instead of In-Text Citation
Every other major UK referencing style, Harvard, APA, Vancouver, puts the citation in the sentence itself, in brackets. OSCOLA doesn’t. It puts a small superscript number after the relevant word or phrase, and the full citation sits in a footnote at the bottom of the page instead.
The number always goes after the punctuation it relates to, never before it. A sentence ending on a citation looks like this: ‘the actus reus must be a voluntary act.¹’ Not ‘act¹.’
Markers notice this specific slip more than almost any other formatting error, because it’s the first thing your eye catches when a footnote number sits in the wrong place.
Every footnote ends with a full stop, even a short one that’s nothing more than a case name and a citation. This catches out students moving across from Harvard, where a bracketed citation doesn’t take its own punctuation.
The current standard is OSCOLA 5th edition, published by Hart Publishing. Some UK law schools haven’t fully updated their own internal guidance to reflect it yet, so it’s worth checking your own department’s handbook alongside this guide rather than assuming the two will always agree on every small point.
What goes in the footnote and what goes in the bibliography are two different jobs. The footnote supports a specific sentence, at the specific place you made the claim.
The bibliography, at the end of your work, lists everything you cited in one place, organised by type. You need both, not one or the other.
OSCOLA at a glance
Before the full breakdown below, here’s how the footnote and bibliography versions differ across the source types this guide covers.
| Source | Footnote example | Bibliography treatment |
|---|---|---|
| Case, neutral citation | Miller [2017] UKSC 5 [26] | Not italicised, in the table of cases |
| Case, pre-2001 | Donoghue v Stevenson [1932] AC 562, 580 | Not italicised, in the table of cases |
| Act of Parliament | Data Protection Act 2018, s 3(1) | Listed in the table of legislation |
| Statutory Instrument | SI 2018/480, reg 2 | Listed in the table of legislation |
| Book | Forename Surname, Title (edn, Publisher Year) page | Surname Initial, Title (edn, Publisher Year) |
| Journal article | Forename Surname, ‘Title’ [Year] Journal page | Surname Initial, ‘Title’ [Year] Journal page |
Keep this table in mind as a sanity check as you go through the detail below, since most OSCOLA errors are a mismatch between what a source type needs in the footnote and what it needs in the bibliography.
How to Reference a Case in OSCOLA
Case citation is where OSCOLA differs most sharply from every other style, and it’s worth taking slowly.
Cases with a neutral citation (2001 onwards)
Since 2001, UK courts have assigned every judgment a neutral citation: a reference that’s the same no matter which law report eventually publishes the case, or whether one does at all. It’s the format you’ll use for almost everything you cite from the last two decades.
Footnote, first citation: ¹ R (Miller) v Secretary of State for Exiting the European Union [2017] UKSC 5.
To point to a specific part of the judgment, add the paragraph number in square brackets straight after, with no comma: R (Miller) v Secretary of State for Exiting the European Union [2017] UKSC 5 [26]. That’s a paragraph reference, not a page number, since neutral-citation judgments are numbered by paragraph rather than paginated.
Cases without a neutral citation
Older cases, and the small number that still go unreported, don’t have one. For a case with a law report but no neutral citation, cite the report series and use a comma before the page pinpoint, since this is genuinely a page number rather than a paragraph: Donoghue v Stevenson [1932] AC 562, 580.
An unreported judgment, where no report exists at all, is cited by court and date instead of a report reference: [Party] v [Party] (Court of Appeal, 12 March 1998). These are rare now that neutral citation covers almost every case, but you may still meet one in older material.
Case names and pinpointing
Case names are italicised in footnotes: R v Brown, not R v Brown. The ‘v’ between the parties is not italicised, doesn’t take a full stop, and is never written out as ‘versus’, even though you’ll sometimes see students do this out of habit from other subjects.
In the bibliography’s table of cases, the italics disappear entirely. R v Brown [1993] 2 All ER 75 sits in plain text in the table, while the same case appears italicised every time it’s cited in a footnote. This single inconsistency, forgetting that footnote formatting and bibliography formatting genuinely differ, is one of the details students most often get backwards, because it feels like it should be the same treatment throughout.
Citing the same case again
Once you’ve cited a case in full, later references use a shortened form. If the citation directly follows the one before it, use ibid: ² ibid [30]. If it doesn’t directly follow, cross-reference the earlier footnote by number instead: ⁵ Miller (n 1) [30].
If you’re checking a case’s actual neutral citation before you cite it, The National Archives’ Find Case Law service is the official, current repository and a far more reliable source than a search engine snippet.
A worked example across a whole paragraph
Here’s how these pieces actually sit together in practice. Suppose you cite Miller in full, then refer back to it twice more within the same section.
Footnote 4, first citation: 4 R (Miller) v Secretary of State for Exiting the European Union [2017] UKSC 5 [26]. Footnote 5, citing the same case again immediately after: 5 ibid [41]. Footnote 9, citing it again several paragraphs later, after other sources have appeared in between: 9 Miller (n 4) [50].
Notice that ibid only survives one step, the very next footnote. The moment anything else gets cited in between, you’re back to the full short-form cross-reference.
How to Reference Legislation in OSCOLA
Acts of Parliament
An Act is cited by its short title and year, with no italics. If you’ve already named the Act in your running text, the footnote just needs the section: ³ Data Protection Act 2018, s 3(1). If you haven’t named it in the text, the footnote carries the full citation on its own.
Statutory Instruments
Secondary legislation follows a different numbering pattern: year and SI number, then the specific regulation. ⁴ Data Protection (Charges and Information) Regulations 2018, SI 2018/480, reg 2. Students who’ve only learned to cite Acts sometimes try to force an SI into the same pattern, which is where this trips people up.
EU law and retained EU law
Brexit didn’t remove EU-derived law from UK courts overnight. A body of retained EU law remains in force, and citing it correctly means citing the UK statute that preserved it, most commonly the European Union (Withdrawal) Act 2018, alongside the underlying EU instrument where relevant: ⁵ European Union (Withdrawal) Act 2018, s 2.
Where you’re citing the original EU instrument itself rather than the UK statute that preserved it, OSCOLA treats it similarly to domestic legislation: name, number and year, for example Regulation (EU) 2016/679 (the General Data Protection Regulation). Whether you cite the UK-retained version or the original EU version depends on which one your argument is actually about, so check this against your module’s own guidance if you’re unsure.
Scottish and Northern Irish legislation
If your module covers more than England and Wales, Acts of the Scottish Parliament and Northern Ireland Assembly follow the same short-title-and-year pattern as Westminster Acts, but keep the correct full name, for example the Age of Criminal Responsibility (Scotland) Act 2019. Don’t assume every UK statute is a Westminster Act by default.
Always check the current text of any Act or SI against the official text on legislation.gov.uk before you cite it, since amendments can change section numbers after the date you first read it.
How to Reference Secondary Sources in OSCOLA
Books
An authored book, footnote: ⁶ Catherine Elliott and Frances Quinn, Criminal Law (12th edn, Pearson 2018) 45. In the bibliography, the author order flips and the pinpoint page drops off: Elliott C and Quinn F, Criminal Law (12th edn, Pearson 2018).
An edited or translated book follows the same core pattern but adds the editor’s role after their name, in brackets, rather than treating them as a standard author, for example: John Smith (ed), Title of the Collection (2nd edn, Publisher 2021).
Journal articles
Footnote, first citation: ⁷ Philip Murray, ‘Cart Revisited: Ouster Clauses and the Upper Tribunal’ [2024] CLJ 6, 7. The article title sits in single quotation marks, unlike a book title, which is italicised. Bibliography: Murray P, ‘Cart Revisited: Ouster Clauses and the Upper Tribunal’ [2024] CLJ 6.
The square brackets around the year, rather than round ones, signal that the year is essential to locating the article, which is the case for most law journals that number by year rather than a continuous volume count. Where a journal does use continuous volume numbering instead, the year moves into round brackets and the volume number takes the square brackets’ place. Check which convention your specific journal uses before assuming one or the other.
Online-only journal articles follow the same pattern as their print equivalents, with a DOI or stable URL added at the end where one exists. There’s usually no need for an access date in OSCOLA the way some other UK styles ask for one, since a DOI is considered stable enough on its own.
Command papers, Law Commission reports and other official publications
These sit in their own category, distinct from both books and legislation, and get misclassified as one or the other more often than almost any other source type. Footnote: ⁸ Law Commission, Digital Assets: Final Report (Law Com No 412, 2023) para 3.45. The report title is italicised, like a book, but the Law Commission itself is treated as the author rather than an individual person.
A House of Commons or House of Lords command paper follows a similar shape but cites the government department or committee responsible in place of an individual author, with the command paper number given in brackets alongside the year. If you’re not sure whether something counts as a command paper, a Law Commission report or an ordinary government report, check the front cover or first page, since UK official publications are usually explicit about which category they belong to.
Bibliography Rules and Cross-Referencing
An OSCOLA bibliography isn’t one alphabetical list. It’s three: a table of cases, a table of legislation, both usually at the very front of the document in that order, and then the bibliography proper at the end, covering books, articles, reports and everything else, alphabetical by author surname.
Within the table of cases, entries are usually ordered alphabetically too, by the first party’s name. Within the table of legislation, UK Acts, Statutory Instruments and any EU or international instruments are commonly kept in their own separate groupings rather than merged into one alphabetical run, though check your own department’s exact preference here, since this is one of the few places UK law schools genuinely differ from each other.
Ibid refers only to the footnote immediately before it, and only when it’s the same source. Skip a footnote in between, even briefly, and ibid is no longer correct, you need the (n X) cross-reference format instead. This is the single most common way students misuse it, using ibid to mean ‘the same source as earlier in this paragraph’ rather than ‘the same source as the footnote directly above.’
Watch your author-name formatting across the two places it appears. A footnote gives the name forename-first: Catherine Elliott. The bibliography flips it: Elliott C.
Writing ‘Elliott, C’ with a comma, or keeping forename-first in the bibliography, are both formatting inconsistencies markers are trained to spot even when every underlying citation is otherwise correct.
The Five OSCOLA Mistakes That Cost Law Students the Most Marks
1. Footnote marker before punctuation instead of after. The number belongs after the full stop or comma it relates to, not before it. ‘the actus reus must be a voluntary act.¹’ is correct; ‘act¹.’ is not. It’s a small visual difference, but it’s usually the very first thing a marker’s eye catches, which makes it disproportionately costly for how easy it is to fix.
2. Missing full stop at the end of a footnote. Every single footnote needs one, even a bare case citation with no discussion attached. Students who’ve come from Harvard, where a bracketed citation takes no punctuation of its own, are the ones most likely to drop this by habit.
3. Wrong italicisation. Only book titles, Law Commission and command paper titles, and case names inside footnotes get italics. Case names in the bibliography’s table of cases don’t, and neither do Act names anywhere, in a footnote or in the table of legislation. Applying the same formatting everywhere, rather than switching it off in the two places OSCOLA asks you to, is the single most common italicisation error.
4. Misusing ibid across a broken sequence. Ibid means the footnote directly above, same source, nothing else in between. If anything else has been cited in the gap, even briefly, ibid is wrong and you need the numbered cross-reference format instead, as shown in the worked example above.
5. Inconsistent author-name order between footnotes and bibliography. Forename-first in the footnote (Catherine Elliott), surname-first with no comma in the bibliography (Elliott C), applied the same way every single time across the whole document. A reference list that switches between the two conventions partway through reads as careless even when every individual citation is technically correct.
Run through these five before you submit anything. It takes two minutes and it catches the errors that cost the most marks relative to how quick they are to fix.
Before You Submit
OSCOLA rewards precision over memorisation. Nobody holds the whole system in their head from week one, and that’s fine, this guide is built to be checked against rather than memorised outright. Run your final draft against the five-mistakes list above, confirm your three-part bibliography is actually three parts, and you’ve covered the errors that account for most of the marks lost to referencing on a law degree.
If OSCOLA isn’t actually the style you need, say because you’ve picked up a joint honours module outside law, our Harvard referencing guide walks through that system in the same level of detail.