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Large Firm

We have decades of experience.

Big tax and accounting firms need a wealth of expertise behind them – and that’s what Croner-i Large Firm (11+ partners) provides. Our online service is designed to support the extensive needs of large practices. The vast spread of resources we offer covers the wide variety of issues large firms need to deal with, including tools and guidance across the full breadth of financial reporting, audit, and tax advice.

Complete access to our Navigate Tax, UK GAAP, IFRS and Audit services awaits. Alongside in-depth and quick overview commentaries backed up with full tax and accounting source materials and a range of practical and specialist guides and tools ensures your firm has everything needed to cover your online research needs.


Two Large Firm packages are available with and without IFRS content. It’s a concise platform with everything in one easy-to-access place, and up-to-date information to help you to give your clients the best possible service.

Large Firm Essentials

  • Navigate Tax - over 90 transaction-based and tool-rich modules
  • In-depth - comprehensive commentaries on all UK taxes
  • Quick Overview - clear and concise explanations for all UK taxes
  • Practical commentaries on VAT, corporate tax, capital allowances, payroll & benefits and much more
  • Specialist commentaries on private residence relief, tax treaties, furnished holiday lettings and more
  • Navigate UK GAAP Accounting - complete access to all content inc. UK accounting standards
  • Tools - automated financial disclosure software, engagement letter toolkit, model accounts
  • Navigate Audit - complete access to all content, inc. auditing standards
  • Sector audit and accounting guides and sector specific guidance to over 550 small business trades
  • Tax , VAT, customs and excise duties and companies legislation, tax cases and complete HMRC manuals
  • Tax Weekly and Audit & Accounting Weekly
  • Tax and VAT telephone advice line
  • And more

Large Firm Complete

  • Content in addition to Large Firm Essentials:
  • Specialist commentaries on employment status, IPT and VAT and financial services and more
  • Navigate IFRS Accounting - complete access to all content inc. international accounting standards
  • Guides on corporate finance, practice management and for company secretaries and directors


  • Who is Croner-i? +

    Croner-i provides online information, expert guidance, and tools for professionals. Our products include resources for sectors such as tax, accounting, audit, human resources, health & safety, and compliance.

    Read more about Croner-i or learn about our heritage.

    If you've been a Croner-i customer for a number of years, your service may previously have been known as CCH or Wolters Kluwer.

  • How can I order a product? +

    To order or sign up to a Croner-i product, call our sales team on 0800 231 5199. You can also fill out our enquiry form at the bottom of this page to get a call back.

  • How do I contact Croner-i? +

    We're always happy to help with your queries. You can contact us in the following ways.

    • New to Croner-i: 0800 231 5199, option 1
    • Existing customers: 0800 231 5199, option 2
    • Talk to us on live chat (bottom right-hand corner)

    Phone lines and live chat are open 9am-5pm, Monday to Friday.

  • What are your supported browsers? +

    On desktop:

    • Internet Explorer 11
    • Microsoft Edge
    • Chrome – current and previous three versions
    • Safari 9 and above
    • Windows 7, 8, 10
    • Mac OS 10.10 and above

    On mobile:

    • Chrome on Android Marshmallow and above
    • Safari on latest and previous Apple iOS

    Most other browsers and operating systems may work, but are not officially supported so some elements may not function properly.

Trusted by UK start-ups and the world's largest organisations

"Croner-i is the tool that gave me the confidence to work my way through anything that I have to give advice on."

Eleanor Christie
Group head of tax, Nando’s


of the Nando’s Tax team uses Croner-i for guidance on employment taxes and indirect taxes

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