How to Format a PhD Thesis (UK University Guidelines)

How to format a PhD thesis according to UK Standards, including consistently sized margins for binding, double spacing, 12pt font, and separate numbering for...

How to Format a PhD Thesis (UK University Guidelines)

How to format a PhD thesis according to UK Standards, including consistently sized margins for binding, double spacing, 12pt font, and separate numbering for the Preliminary Pages and Main Body. Make sure to consult your college handbook at all times.

Introduction

You have been working on your PhD for years, and now comes the moment to format your thesis for submission; a formatting mistake could put your whole degree on hold.

Always, before you resize anything or alter your margins or fonts, refer to your university's official formatting guide. This guide available at The Academic Papers UK gives general guidance for the UK, but requirements may differ and always will be more stringent in educational institutions. You will master how to format a PhD thesis from the ground up, including formatting margins, line spacing, font, title page, tables of contents, page numbers, headings and appendices, and get some handy Microsoft Word shortcuts thrown in while you are formatting. It is more than rules; it is a list of guidelines! You will receive practical step-by-step instructions on proper formatting in Word and a pre-submission checklist to help you avoid errors before you are late.

Core Ideas at a Glance

The most important rule is that everything is based on the university handbook; use this as your initial reference, but make sure it follows each university's requirements.

The formatting is organised: the title page, abstract and table of contents all have specific formatting requirements, and they should be followed the same way throughout the main body.

Automatic tables, styles, and section breaks are your best friends in Word; they will save you hours of manual formatting and can help prevent inconsistencies.

There are two parts to the page: the preliminary pages are numbered with Roman numerals (i, ii, iii), and the main body begins anew with Arabic numerals (1, 2, 3).

Before you submit, make sure to check everything: margins, spacing and page numbers will not sit well and may cause a resubmission request, so it is in your best interests to do a final check.

Not Sure Your Paper Matches Your Handbook?

Send the first twenty pages to The Academic Papers UK and have the margins, spacing, font and page setup checked.

Standard Formatting Specs

Although different institutions have different base-level requirements, most universities in the UK will adhere to some level of standards for thesis formatting guidelines. The following table provides the most commonly encountered standard specifications.

ElementStandard UK GuidelineNotes / Variation
MarginsBinding edge: 40mm (1.5 inches); Other edges: 20mm (0.75 inches)Some universities use mirrored margins (e.g., 3cm inside, 2cm outside)
Line SpacingDouble or 1.5 spacing for main textSingle spacing acceptable for footnotes, quotations, and bibliography
Font & SizeArial, Times New Roman, or Calibri at minimum 12ptCheck if your university specifies a particular font family
AlignmentLeft-aligned or justifiedConsistency throughout the document is key
Page SizeA4 (210 x 297 mm)Standard UK paper size—never use US Letter

Standard Formatting of PhD Thesis

 

The word count in a PhD thesis can vary from subject to subject; the bibliography and appendices are usually minimally included, and footnotes may or may not be included. This is typically in the range of 80,000-100,000 words total, which may be different depending on the institution and subject area.

A study of 26,076 PhD candidates from 14 UK universities found that about 79% of candidates with PhD grades after their exams get minor corrections, and 16% get major corrections. Many of these corrections are related to formatting problems that could have been prevented if they had paid attention to the formatting specifications for the PhD thesis format.

Title Page & Preliminary Pages

Your examiners will not see your title page until they finish reading it, so it is important to get this right and set a good pace. It should contain the official title of the thesis, the last name and first name, the name of the institution, the degree you want to apply for, and the date of the thesis.

  • Abstract: An abstract of about 300 words providing a succinct summary of your research. This is frequently the part in your thesis that people read most.
  • Declaration: A formal declaration acknowledging the use of any AI, if applicable, and stating that the content is original. Some universities also have specific requirements for disclosure statements involving AI.
  • Acknowledgements: A paragraph thanking people who gave support with supervisors', colleagues', funders ', and family tasks.
  • Table of Contents: This contains a complete listing of all chapters, sections and subsections along with page numbers. To increase the speed and accuracy, generate Word's Table of Contents automatically.
  • Other Lists: If there are a lot of figures, tables or abbreviations, add a List of Figures, a List of Tables and a List of Abbreviations.

 

Preliminary Pages Order

diagram-2 — the sequence your front matter must run in

Practical Tip: Manage your table of contents automatically using the table of contents features available in Microsoft Word (use Heading 1, Heading 2, etc.). This will keep consistency in your changes and will be updated as soon as you change anything. To the examiner, it is important to pay attention to these preliminary pages, and this is one of the characteristics of proper written dissertation formatting. Whereas, if the table of contents is not well organised, and/or there are numerous formatting errors, I should anticipate the worst of the thesis, writes one examiner.

Headings & Structure

Headings must be (and should have been) ordered, and they should provide the reader with a head-to-head comparison of the contents of each page. The structure of your answer should be as follows:

  • Chapter titles (H1): The main chapter titles are generally in a large, bold print style (such as 14pt or 16pt) and centred.
  • Main sections (H2): Bold and left-aligned
  • Subsections (H3): Bold or italic, left-aligned
  • Numbering: The chapters are usually numbered (e.g. Chapter 1, Chapter 2), and the sections are numbered within the chapters (e.g. 1.1, 1.2, 1.1.1). This means they have a good guideline on how the game is going to be structured, which helps both the readers and the examiners.

Practical Tip: Always use Microsoft Word Styles to keep headings consistent across the document. One page will keep track of page two of the document. Built-in styles (Heading 1, Heading 2, etc.) make it easy to keep everything uniform, and your table of contents is automatically generated. Many valuable skills you can gain whilst studying how to format a dissertation are most prominently recognised by this aspect.

Be aware of thesis formatting guidelines UK: there are certain formatting rules you must follow for each level of your thesis. You should consult your handbook for details of the desired font size, boldness, and alignment required for each level. For instance, some universities would like chapter headings in all caps, while others favour the use of title case. This will tell examiners that you, on your side, have read all the details properly.

Page Numbers & Sections

Lots of people find one of the hardest parts of thesis formatting is the book's Page numbering. Well, it is not a big secret, and it is straightforward once you know the rules.

Roman vs Arabic Numerals

  • Preliminary pages (Title page, Abstract, Table of contents): These are numbered with lowercase Roman numerals (i, ii, iii)
  • Main body of the thesis must begin with 1, 2, 3 in Arabic numerals
  • The top right or the bottom centre area of the page is where the position is commonly defined. Please verify your University's preference.

 

Page Numbering

diagram-3 — where the numbering changes, and how

Practical Tip: Learn how to use Section Breaks on your Word document. Add a Section Break (Next Page) between the front matter and main body of your document. This enables you to go back to page numbers and reset the number format from Roman to Arabic. This is one of the most important stages when formatting a PhD thesis.

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Consecutive Numbering

All the pages of the document, even those with figures and/or tables, should be numbered consecutively in each section. Numbers should not be omitted, or the numbering should not be interrupted in the body.

Tables, Figures & Appendices

When formatting non-text elements, pay attention to details to ensure consistency and professionalism.

Tables & Figures

  • Numbering: Numbering can be done continuously as numbers (e.g., Table 1, Figure 2) or within each chapter (e.g., Table 1.1, Figure 2.3).
  • Captions: The following rules are for writing captions: They should be put below the table or figure.
  • Referencing: The reference must be included in the main text (For example: "as illustrated in Figure 3.2")

Appendices

  • Includes supplemental materials such as raw data, questionnaires, and complete interview transcriptions.
  • This is an additional word count limit for appendices, such as 5,000 words, for the Universities and may be specified separately.
  • The appendices should begin on a separate page.

Lists

The List of Tables and List of Figures should follow the Table of Contents.

Practical Tip: Word will automatically number the tables and figures, and create these lists; as a good practice, use the Insert Caption function. This reduces valuable human hours and minimises the chance of numbering errors.

Final Formatting Checklist

When it is time for your thesis, you should go through this checklist and uncover any formatting problems that may cause delays in graduation.

  • The next margins meet the requirements of the university (binding edge and other edges)
  • The font is regular, uniform and readable (such as 12pt, Times New Roman, or Arial)
  • Line spacing (double spacing or 1.5 lines between them) is correct.
  • Numbers in brackets refer to the correct and continuous page numbers in each section.
  • The document's headings correspond to the table of contents.
  • All figures and tables are labelled and provide captions that explain the information presented.
  • There is a properly formatted bibliography/reference list.
  • All appendices are listed in the correct sequence

According to Vitae's researcher career guidance, around 70% of those in the UK who get a PhD end up with minor corrections made following their viva, while over 80% of PHD candidates in the UK experience some level of corrections following their viva. Many of these corrections result from formatting mistakes, which is one area of the thesis a thorough checklist would catch.

Failing to proofread or edit is a common issue for most students who are rushed for time or are too confident to do so, resulting in missed formatting and typographical errors. Do not turn out to be one of them! If you spend some time checking the PhD thesis format in accordance with your University's guidelines, you will save yourself weeks of corrections down the track. If you are intimidated by the task of formatting a dissertation, you can take advantage of dissertation formatting assistance hiring professional dissertation editing service at The Academic Papers UK.

FAQs

Do All UK Universities Have the Same Thesis Format Rules?

No. There are quite a few standard rules common to all UK universities, but every individual institution has its own documentation on the formatting. When preparing your document, always remember to check your department's official guidelines first. You will also be able to see if there are any requirements your supervisor knows of that will be required based on your institution.

What is the Standard Font and Size for a PhD Thesis?

Major universities in the UK specify Font Size 12pt in Arial or Times New Roman, both of which are easy to read and fit the page well. However, some institutions may require a specific font style, so always check your handbook. It is not so important what font you use; it must be consistent.

How Do I Set Up Different Page Numbers in Word?

Use section breaks. Add a "Next page" section break at the end of your preliminary pages and the beginning of the main body. This makes it possible to change the Roman number style at the beginning of the first line and change to Arabic numbers again at the start of the second line. This is a basic requirement for formatting a PhD thesis properly.

What Margins Should A UK Phd Thesis Have?

The common UK standard is 40 mm (1.5 inches) on the binding edge and 20 mm (0.75 inches) on the other three. The binding edge is wider so that no text disappears into the spine once the thesis is bound. Some universities specify mirrored margins instead — typically 3 cm inside and 2 cm outside — so check your handbook before you set them.

Section Breaks Giving You Trouble?

Our editors rebuild the section structure so the numbering survives the edits you still have to make.

How Many Words Is A UK PhD Thesis?

Typically 80,000 to 100,000 words, though this varies by discipline and institution. What counts towards that total also varies: the bibliography and appendices are usually excluded or only minimally included, and footnotes may or may not count. Your handbook is the only authority on which parts of your own thesis are counted.

Should A PhD Thesis Be Double Spaced Or 1.5?

Either is normally acceptable for the main text. Single spacing is generally permitted for footnotes, block quotations and the bibliography. What matters more than the choice is applying it consistently across every chapter.

Where Should Page Numbers Go In A PhD Thesis?

Top right and bottom centre are both common, and universities differ, so this is one detail worth checking explicitly. The more important rule is the sequence: preliminary pages take lowercase Roman numerals (i, ii, iii) and the main body restarts at 1 in Arabic numerals.

What Size Should Chapter Headings Be In A Thesis?

Chapter titles are usually larger and bold — 14pt or 16pt is common — and often centred, with main sections bold and left-aligned, and subsections bold or italic. Some universities require chapter headings in capitals and others in title case, so confirm the convention rather than assuming it.

Do Appendices Count Towards The Thesis Word Count?

Usually not, or only partially. Many universities set a separate limit for appendices — 5,000 words is a common figure — and specify it independently of the main word count. Appendices should also begin on a new page.

Should Tables And Figures Be Numbered By Chapter Or Continuously?

Both conventions are used. You can number continuously through the thesis (Table 1, Figure 2) or within each chapter (Table 1.1, Figure 2.3). Pick one and hold it throughout. Captions go below the table or figure, and every one must be referred to in the main text.

Do I Need To Declare The Use Of AI In My Thesis?

Increasingly, yes. Many UK universities now require a declaration covering any use of AI tools, and several publish a specific disclosure statement to include alongside the formal declaration confirming the work is your own. Check your regulations — this requirement has changed recently at a number of institutions.

Can A Thesis Be Sent Back For Formatting Errors Alone?

Formatting problems rarely fail a thesis on their own, but they are a routine source of the corrections that delay an award. In a study of 26,076 UK candidates across 14 universities, about 79% passed with minor amendments and 16% with major revisions, so corrections of some kind are the norm rather than the exception. A formatting pass before submission removes one avoidable category from that list.

How Do I Keep My Table Of Contents Up To Date In Word?

Build it from Word's built-in heading styles — Heading 1 for chapter titles, Heading 2 for main sections, Heading 3 for subsections — and insert it with the automatic Table of Contents tool rather than typing entries by hand. It then updates whenever a heading or a page number changes. Use Insert Caption for tables and figures so the List of Tables and List of Figures behave the same way.

What Paper Size Should A UK PhD Thesis Use?

A4, 210 × 297 mm. Never US Letter. If you have been working in a template downloaded from a US source, check the page size before you set your margins, because a Letter-sized page will throw every measurement out.

Need to have this process done, but struggling? There is nothing to worry about, as our expert editors can format your thesis to be ready to submit to any UK university, and every margin, heading, and page number will be formatted accordingly. Get professional help with your dissertation formatting today.

Cite this article

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Elizabeth Monaghan (August 30, 2026). How to Format a PhD Thesis (UK University Guidelines) Retrieved October 9, 2026, from https://www.theacademicpapers.co.uk/blog/2026/08/30/how-to-format-a-phd-thesis-uk/

Sources
  • DiscoverPhDs., (2020). PhD Failure Rate: A Study of 26,076 PhD Candidates. Available at: https://www.discoverphds.com/advice/doing/phd-failure-rate (Accessed: 31 July 2026).
  • Vitae. (2022). What do researchers do? Doctoral graduate employment, activities and earnings. Available at: https://vitae.ac.uk/wp-content/uploads/2024/12/What-do-researchers-do-doctoral-graduate-employment-activities-earnings-2022-1.pdf (Accessed: 31 July 2026)
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