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TAXguide 02/23: Associated companies
The reintroduction of two rates of corporation tax from 1 April 2023 means that the associated company rules now apply. This TAXguide provides a high-level guide to the associated company rules.
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Research and Development tax relief changes
This webinar will provide a practical overview of the changes to Research and Development tax relief regime in the UK, and what that might mean for you or your clients.
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What is happening in the world of R&D relief?
On 23rd March 2023, we invited author, tax advice specialist and ICAEW member David O’Keeffe to take us through an exploration of the current developments in R&D relief following the recent budget announcement. Check out the webinar and a summary of key information shared during the live broadcast.
Features and articles
Transfer pricing rules to be reformed
- Article
- 12 May 2025
The government has said it intends to make various changes to the UK’s international tax rules, which includes narrowing the scope of the UK-UK transfer pricing rules and replacing the diverted profits tax.
Exclusive
Why non-resident landlords may pay more corporation tax
- Article
- 01 May 2025
Andy Tall explores the principle of ‘non-discrimination’ and explains why most non-resident companies with UK property income cannot rely on it to pay corporation tax at a rate lower than 25%.
Technical round-up: April 2025
- Article
- 30 Apr 2025
This month’s top stories feature new sanctions for tax advisers; a warning for couples with furnished holiday lets; and a dip in HMRC performance.
Government announces raft of tax simplification measures
- Article
- 29 Apr 2025
ICAEW’s Tax Faculty provides a summary of the key measures announced by the government on 28 April 2025 as part of a tax administration and simplification update, including a welcome delay to plans for mandatory payrolling of benefits in kind (BIK).
New process and rules for international employees
- Article
- 25 Apr 2025
ICAEW is reminding employers of the changes made from 6 April 2025 to the process for operating pay as you earn (PAYE) for globally mobile or treaty non-resident employees and to overseas workdays relief.
HMRC relaxes its position on the corporate interest restriction
- Article
- 22 Apr 2025
In Agent Update 130, HMRC explains how it will deal with cases where a group has failed to validly appoint a reporting company (RC) under the rules for the corporate interest restriction (CIR).
Government consults on new tax clearance process
- Article
- 15 Apr 2025
As part of its corporation tax roadmap, the government is consulting on a new process that would give major investment projects increased tax certainty in advance.
HMRC increases interest rates for tax paid late
- Article
- 31 Mar 2025
As first announced at the Autumn Budget 2024, the interest rate charged by HMRC for late payments of most taxes and duties will increase from 7% to 8.5% from 6 April 2025.
Practical guidance
ICAEW's Tax Faculty provides practical support on technical areas of tax.
Exclusive
TAXguide 06/24: Taxation of cars, vans and fuel Q&As
- Technical release
- 29 May 2024
Answers are provided in this TAXguide to questions asked in ICAEW's webinar on the taxation of cars and vans, including electric vehicles and fuel.
TAXguide 02/2024: Taxation of cryptoassets for businesses
- Technical release
- 28 Feb 2024
TAXguide covering the UK taxation of cryptocurrency held by businesses including corporation tax, stamp taxes, employment income and VAT.
TAXguide 01/2024: Taxation of cryptoassets for individuals
- Technical release
- 28 Feb 2024
TAXguide covering the UK taxation of cryptocurrency held by individuals including charges to capital gains tax and income tax.
Exclusive
TAXguide 07/23: Making R&D claims – what information must be submitted and when?
- Technical release
- 03 Oct 2023
Two new forms are required when making claims for research and development (R&D) tax relief. While the additional information form is required for all R&D claims, advance notification will also be required for some.
Exclusive
TAXguide 03/23: R&D tax relief for accounting periods spanning 1 April 2023
- Technical release
- 09 May 2023
The rates of research and development (R&D) tax relief have changed for expenditure incurred on or after 1 April 2023. In addition, the change in corporation tax rates from the same date means that the results for periods spanning 1 April 2023 must be time apportioned. This TAXguide uses examples to demonstrate the interaction of these changes.
Research & Development tax relief
How members are putting MTD into practice
- Article
- 19 May 2025
Many practices are advancing their Making Tax Digital for income tax roadmap, informing clients, researching software solutions and testing early – but the road ahead remains dotted with challenges.
Faculty news: May 2025
- Helpsheets and support
- 09 May 2025
The latest from ICAEW’s centre of professional expertise in corporate finance, including a summit on funding for scale-ups and high tech, information about the faculty AGM, tax matters and diary dates.
Government considers extending R&D advanced clearance service
- Article
- 28 Mar 2025
After preliminary discussions with key stakeholders, including ICAEW, a consultation on widening the advanced clearance process for research and development (R&D) tax relief was published alongside the Spring Statement on 26 March 2025.
Government takes action on umbrella companies
- Article
- 10 Mar 2025
The government has confirmed that it will take forward plans to regulate umbrella companies for the purposes of employment rights and that it will continue to review further policy options.
Last chance for businesses to disclose undeclared sales
- Article
- 10 Mar 2025
HMRC is writing to businesses that may owe tax on undeclared sales, possibly because they have misused their till system (referred to as ‘electronic sales suppression’).
HMRC updates its R&D guidance on subcontracting and subsidies
- Article
- 04 Mar 2025
HMRC has updated its guidance on research and development (R&D) tax relief for the recent First-tier Tribunal (FTT) decisions of Stage One Creative Services Ltd and Collins Construction Ltd. ICAEW’s Tax Faculty summarises the changes and gives its view.
ICAEW’s tax content can help you keep up to date
- Article
- 03 Mar 2025
Get up to speed with the hot topics in tax and meet your continuing professional development (CPD) obligations. See our latest updates on MTD for income tax, R&D tax relief, payrolling benefits in kind, employee ownership trusts and VAT.
VAT compliance controls: new guidance from HMRC
- Article
- 25 Feb 2025
HMRC’s guidelines for compliance are intended to lower the risk of errors and reduce the likelihood of checks.
Webinars and recordings
Associated companies: a family affair
- Podcast
- 29 Apr 2024
What is an associated company and how can this affect business taxation? This episode of The Tax Track looks at how to spot an associated company and apply the rules, particularly in relation to corporation tax.
Exclusive
Research and Development tax relief changes
- Webinar
- 20 Apr 2023
This webinar will provide a practical overview of the changes to Research and Development tax relief regime in the UK, and what that might mean for you or your clients.
ChatGPT, corporation tax and FRED 82
- Podcast
- 05 Apr 2023
On the latest ICAEW Insights podcast, we examine how recent developments are affecting the accountancy profession.
Exclusive
What is happening in the world of R&D relief?
- Webinar
- 28 Mar 2023
On 23rd March 2023, we invited author, tax advice specialist and ICAEW member David O’Keeffe to take us through an exploration of the current developments in R&D relief following the recent budget announcement. Check out the webinar and a summary of key information shared during the live broadcast.
Bloomsbury Accounting and Tax Service
Eligible firms have free access to Bloomsbury Professional's comprehensive online library, comprising around 80 titles from some of the country's leading tax and accounting subject matter experts. Find out who is eligible and how you can access the Accounting and Tax Service.
Exclusive
Bloomsbury Professional Tax Guide 2024/25
- eBook
- 2024
- The TACS Partnership
- Bloomsbury Professional Tax Guide
Comprehensive practical guide on the full range of UK taxes, containing worked examples throughout.
Exclusive
Bloomsbury's tax rates and tables 2025/26: Budget Edition
- eBook
- 2025
- Lucy Webb
Tax rates and tables updated to reflect measures announced in the Autumn Budget on 30 October 2024 and changes proposed in Finance Bill 2024-25.
Exclusive
Bodies granted exemption from corporation tax on trading income
- eBook chapter
- 2025
- Satwaki Chanda, Steve Collings, Jacquelyn Kimber, Maria Kitt, David O'Keefe, Andrew Parkes
- Corporation Tax
A section outlining the exemptions from corporation tax which are granted to charities, where certain conditions are met.
Exclusive
Capital allowances (plant and machinery)
- eBook chapter
- 2025
- Satwaki Chanda, Steve Collings, Jacquelyn Kimber, Maria Kitt, David O'Keefe, Andrew Parkes
- Corporation Tax
Expert commentary on the current UK corporation tax legislation on capital allowances for plant and machinery.
Exclusive
Corporate tax reliefs for intellectual property
- eBook chapter
- 2024
- Anne Fairpo, Mark McLaughlin, Maria Kitt
- Tax Planning
A chapter on corporate tax reliefs for intellectual property, highlighting tax planning opportunities and potential pitfalls.
Exclusive
Corporation tax 2024/25
- eBook
- 2025
- Satwaki Chanda, Steve Collings, Jacquelyn Kimber, Maria Kitt, David O'Keefe, Andrew Parkes
Annual guide examining the rules, regulations and tax issues affecting companies in the UK. The 2024/25 edition examines current legislation, changes to HMRC guidance and key developments. It is up-to-date with Finance Act 2024 and also reflects a number of recent case decisions.
Exclusive
Creative sector tax reliefs
- eBook chapter
- 2025
- Satwaki Chanda, Steve Collings, Jacquelyn Kimber, Maria Kitt, David O'Keefe, Andrew Parkes
- Corporation Tax
Practical guidance on creative sector tax reliefs for film, TV, video games, theatre, orchestra, museums and galleries.
Exclusive
Expanding the company's activities and structuring business acquisitions
- eBook chapter
- 2025
- Peter Rayney
- Tax Planning for Family and Owner-managed Companies
Advice on making a business acquisition, written for anyone who advises or runs a family or owner-managed company.
Terms of use
You are permitted to access, download, copy, or print out content from eBooks for your own research or study only, subject to the Acceptable usage terms.
eBooks
The Library & Information Service provides a collection of eBooks as a benefit of membership. Please log in to access these titles. If you are unable to access an eBook, please see our Help and support or contact library@icaew.com.
Exclusive
Dividends received
- eBook chapter
- 2024
- Malcolm James
- Spiramus
- Taxation of Small Businesses
Outlines the provisions which exempt UK dividends from taxation under the Corporation Tax Act 2009.
Exclusive
Chargeable gains
- eBook chapter
- 2024
- Malcolm James
- Spiramus
- Taxation of Small Businesses
Covers chargeable gains for corporation tax purposes, with additional sections on dividends received, payments to charities, distributions, computation of tax liability, losses, groups, and the way corporation tax relates to income tax.
Exclusive
Loan relationships
- eBook chapter
- 2024
- Malcolm James
- Spiramus
- Taxation of Small Businesses
An overview of loan relationships and corporation tax, with sections on the definition of these relationships, the scope of the rules, accounting for loan relationships and the basis of taxation.
Exclusive
Trading income
- eBook chapter
- 2024
- Malcolm James
- Spiramus
- Taxation of Small Businesses
Explains how corporation tax applies to trading income and the ways in which it differs from income taxation. Covers the annual investment allowance and capital allowances for plant and machinery.
Exclusive
Computation of tax liability
- eBook chapter
- 2024
- Malcolm James
- Spiramus
- Taxation of Small Businesses
Summarises how corporation tax should be calculated in a given tax year, with notes on the current rates and a simple example.
Exclusive
Chargeable accounting periods
- eBook chapter
- 2024
- Malcolm James
- Spiramus
- Taxation of Small Businesses
The chargeable accounting period (CAP) for corporation tax usually coincides with a company's accounting period. This section outlines the alternatives available and how income is allocated within periods for tax purposes.
Exclusive
Scope of corporation tax
- eBook chapter
- 2024
- Malcolm James
- Spiramus
- Taxation of Small Businesses
Lists the kinds of companies and organisations subject to corporation tax and where they must be resident for UK tax law to apply. This section briefly summarises the arguments and precedents concerning residence for tax purposes.
Exclusive
Corporation tax
- eBook chapter
- 2024
- Malcolm James
- Spiramus
- Taxation of Small Businesses
A full chapter on corporation tax in the UK, intended for advisors to small businesses. Includes sections on the scope of corporation tax, trading income, loan relationships, intangibles, derivative contracts, chargeable gains, distributions, losses, demergers, and more.
Terms of use
You are permitted to access, download, copy, or print out content from eBooks for your own research or study only, subject to the terms of use set by our suppliers and any restrictions imposed by individual publishers. Please see individual supplier pages for full terms of use.
Articles and books in the ICAEW Library collection
The collection of the ICAEW Library & Information Service includes a range of articles, books and reports on corporation tax. A selection of books on this topic is set out below.
Putting it through the company: tax planning for companies and their owners, 2025/26
- Library book
- 2025
- C. Bayley, N. Braun
- Taxcafe UK
A tax planning guide for company owners, setting out the tax savings that may arise from using a company. It explains, in plain English, the tax rules for dozens of different business expenses, including certain less obvious tax deductions.
Taxation of partnerships: a practical guide, 3rd ed.
- Library book
- 2025
- P. Howard
- Claritax
A practical guide to the tax issues and principles which apply to different types of partnership, including LLPs, limited partnerships and partnerships with corporate members. It covers all the key taxes – income tax, capital gains tax, SDLT, corporation tax – as well as complex areas such as mergers and demergers, incorporations, and losses.
Tolley's taxwise, 2024-25
- Library book
- 2024
- T. Agnew, et al.
- LexisNexis
An annual two-volume set offering practical expert guidance on how to approach real-world tax computations. Brings together relevant points from current legislation, case law and other official material. Worked examples and detailed explanatory notes are included to illustrate complex points.
Tolley's tax planning for owner-managed businesses, 2024-25
- Library book
- 2024
- J. Houghton
- LexisNexis
A practical title written specifically for the tax practitioner, offering real-life solutions to everyday business problems. Covers issues relevant to owner-managed and family businesses.
Tolley's corporation tax, 2024-25
- Library book
- 2024
- K. Walton
- Tolley
An annual book on corporation tax law and practice, bringing together the latest legislation, case law and ancillary material. It is arranged by subject, with various aspects of corporation tax compliance and planning being covered in turn. Worked examples are included to clarify complex points.
Research and development: with Patent Box, 4th ed.
- Library book
- 2024
- G. Collins, C. Ridley
- Claritax Books
This book offers valuable insights into the UK's special tax rules for research and development (R&D) expenditure. It reveals the scope of the relief available and provides guidance on meeting the statutory conditions for successful claims.
Tolley's yellow tax handbook, 2024-25
- Library book
- 2024
- A. Redston (ed.)
- LexisNexis
Annual multi-volume work bringing together the fully amended and annotated text of all legislation and official material relating to income tax, capital gains tax, corporation tax, national insurance contributions, tax credits, petroleum revenue tax and inheritance tax. Includes footnotes indicating amendments to legislation, and cross-references to the HMRC Manuals.
The taxation of small businesses, 2024-25
- Library book
- 2024
- M. James
- Spiramus
A practical, single-volume guide to all aspects of direct taxation of small businesses. The author clearly explains the relevant legislation, and offers practical advice on how to minimise clients' tax liabilities and avoid common pitfalls. This latest edition incorporates changes arising from the Finance Acts 2024.
- View a list of all books in our collection on corporation tax
- View a list of articles in our collection on corporation tax
To find out how you can borrow books from the Library please see our guide to borrowing books.
You can obtain copies of articles or extracts of books and reports through our document supply service.
Representations
ICAEW REP 081/24 Industrial Strategy consultation response
- Representation
- 27 Nov 2024
- PDF (446kb)
A representation dated 24 November 2024 to a consultation published by the Department for Business and Trade on 14 October 2024.
ICAEW REP 070/24 Business Tax Roadmap
- Representation
- 30 Sep 2024
- PDF (162kb)
A letter sent from Frank Haskew, Head of Tax, ICAEW, to James Murray MP, Exchequer Secretary to the Treasury.
ICAEW REP 065/24 ICAEW Autumn Budget submission 2024
- Representation
- 18 Sep 2024
- PDF (313kb)
Ahead of the Budget on 30 October, ICAEW has published its submission to the Chancellor. ICAEW urges the government to put incentivising growth at the heart of the Budget, with recommendations including: long-term fiscal planning, a fundamental review of the tax system and investment in skills and green technologies.
ICAEW REP 041/24 TAFR enquiry and assessment powers penalties and safeguards
- Representation
- 02 May 2024
- PDF (273kb)
A representation dated 2 May 2024 to a consultation published by HMRC on 15 February 2024.
ICAEW REP 023/24 R&D tax reliefs guidance on contracting out and overseas restrictions
- Representation
- 04 Mar 2024
- PDF (456kb)
A representation dated 29 February 2024 to a consultation published by HMRC on 9 February 2024.
ICAEW REP 003/24 Finance Bill 2023-24 - Clause 2 and Schedule 1: New regime for research and development carried out by companies
- Representation
- 09 Jan 2024
- PDF (175kb)
A briefing for MPs on the Finance Bill by ICAEW Tax Faculty.
ICAEW REP 095/23 R&D Tax reliefs reform
- Representation
- 14 Sep 2023
- PDF (168kb)
A representation dated 14 September 2023 to a consultation published by HMRC on 18 July 2023.
ICAEW REP 074/23 Reform of transfer pricing, permanent establishment and diverted profits tax
- Representation
- 14 Aug 2023
- PDF (165kb)
A representation dated 11 August 2023 to a consultation published by HM Treasury on 19 June 2023.
Useful links
Some resources that we link to may pre-date the latest amendments to the relevant tax regulations. While these links contain useful information, please treat them with appropriate caution.
Corporation Tax: detailed information on GOV.UK
- Website
- 13 Mar 2018
Official guidance on corporation tax for limited companies, including preparing accounts, working out corporation tax, reliefs available, filing returns, payments and refunds.
Corporation Tax: HMRC manuals
- Website
- 13 Mar 2018
HMRC internal manuals providing guidance on corporation tax relating to a wide range of business sectors and reliefs.
Corporation Tax topic on GOV.UK
- Website
- 19 Jun 2023
A hub page providing links to various materials and facilities relating to corporation tax, including services, guidance and regulations, news and communications, research and statistics, policy papers, and consultations.
ICAEW accepts no responsibility for the content on any site to which a hypertext link from this site exists. The links are provided ‘as is’ with no warranty, express or implied, for the information provided within them. Please see the full copyright and disclaimer notice.
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Information
Some of the content on this web page was provided by the Chartered Accountants’ Trust for Education and Research, a registered charity, which owns the library and operates it for ICAEW.