Unparalleled guidance
Simon’s Taxes is the leading reference service on UK direct taxes and provides expert unbiased and authoritative guidance reviewed by leading practitioners drawn from a range of different disciplines.
Featuring unrivalled analysis and commentary written by the UK’s leading tax experts, Simon’s has been the source of choice for tax practitioners, solicitors and barristers since 1948.
Simon’s Taxes is the leading reference service on UK direct taxes and provides expert unbiased and authoritative guidance reviewed by leading practitioners drawn from a range of different disciplines.
Simon’s Taxes detailed narrative is updated weekly to ensure it is as accurate, up to date and practical as possible.
Simon’s is internally cross‐referenced both to other key content throughout the source and to external publications such as Simon’s Weekly Tax Intelligence, annotated tax legislation, case law reports and HMRC manuals, saving you search time.
Simon’s Taxes also includes a New Developments section — this is important because it means you can be confident that the service covers all the recent changes.
Our exclusive content covers key areas such as Tax rates and allowances, table of cases, new developments, Business tax, Capital gains tax, HMRC materials and much more.
Tolley’s Pillar Two content in Simon’s Taxes offers in-depth, guidance to help tax professionals navigate the complexities of the OECD’s global minimum tax rules. Designed for clarity and usability, this content empowers users to understand how the UK has adopted Pillar Two.

Build your personalised selection of titles on the virtual bookshelf. Easily return to your most used sources or narrow your search to just one or a select handful.

Natural language search and dynamic filters allow you to browse through titles and chapters or find the specific answers you're searching for faster. Plus with TolleyThis! extension you can search Tolley+ from any website as well as within Office.com.

Only Tolley's HMRC Manual Comparator lets you quickly identify and redline any recent additions or deletions that have been made to any HMRC Manual document you are viewing. It serves as a vital resource for professionals needing to reference past views or historical positions held by HMRC.

Revolutionise your research experience. These curated pages provide a comprehensive topic overview, including summaries, the essential legislation underpinning the topic, related content, and HMRC manuals.

Add your own notes directly within the platform, capturing your thoughts and insights seamlessly and securely. Admins can add notes visible to your entire organisation subscription, while your notes remain unique to you.

At Tolley, we understand that every professional has their own unique workflow and organisational needs. That's why we've introduced Folders, a powerful new feature that allows you to save and categorise documents in custom folders, tailored to your preferences.

With our intuitive Research History feature, you can effortlessly track and revisit your past research activities, ensuring no valuable insight is ever lost. This tool is designed to save you time by providing quick access to previously viewed documents and searches, allowing you to build upon your past work without the need to start from scratch.

News alerts as developments happen, commentary and analysis on the latest developments in tax and specialist case summaries. Allowing you to find new opportunities for clients quickly, whilst ensuring the information you get is always accurate.

Access a suite of resources in the form of focused proforma documents and policies tailored to meet the needs of your practice.