Transform your corporation tax process

More than 1,300 customers, including over 40% of the UK FTSE 100 and more than 80% of the top advisory firms use Alphatax
Enquire now

Over 1,300 customers, including over 40% of the UK FTSE 100 and more than 80% of the top advisory firms

Alphatax is the UK and Ireland’s no.1
enterprise corporation tax compliance software solution

Mitigate Risk

The most comprehensive corporate tax compliance engine on the market.

Create Opportunities

Enhance the quality, accuracy and efficiency of your compliance processes.

Generate Insights

Powerful reporting capabilities put you in control of your data.

Collate, calculate, validate and submit with complete confidence

Alphatax is designed to provide tax professionals with complete control over the preparation and management of the end-to-end compliance process; from the raw data collection to the completion of the corporation tax computation, and e-filing submission.
  • Comprehensive audit trail and review features.
  • E-file fully iXBRL compliant tax returns and computations.
  • Automatically produces all relevant tax compliance reports.
  • Supports automatic integration and exchange of data.
  • Includes standard report templates and the ability to configure bespoke reports.
  • Supports Pillar Two compliance in accordance with OECD and UK legislation
Support for all your corporation tax requirements

Alphatax delivers

With automated data collection tools, robust tax logic, inbuilt cross references, comprehensive audit trail and legislatively up-to-date help, you can rely on Alphatax to calculate and e-file fully iXBRL compliant tax returns and computations.

Data collection

Alphatax supports the automatic integration and exchange of tax data through a combination of products and tools tailored to your specific requirements. You can import data held in spreadsheets, while automated tools extract and combine data from multiple General Ledger and ERP systems.

Year-end tax provisioning

The Advanced IFRS Reporting function Produces Tax Provision Reports and assists in preparing a tax balance sheet and calculating the tax bases of assets and liabilities. It helps deliver a structured balance sheet liability approach as specified by IAS 12.


Alphatax is the most comprehensive and accurate corporate tax compliance solution that caters for all company types in the UK & Ireland. It supports all corporation tax requirements including year-end provisioning, tax computations, company tax returns and tax forecasting calculations.

Review & audit trail

Alphatax maintains a robust audit trail providing full visibility of any change made across the compliance process. It includes user-name and timestamps for data, interactive footnotes and review notes, and computation snapshot facility. Diagnostics inform you of any potential problems within the computation.

iXBRL tagging& e-filing

Alphatax uniquely, automatically tags relevant items in the computation without additional user intervention. Submission of the CT600 to the relevant tax authorities is seamlessly achieved via our inbuilt e-filing wizard. Alphatax generates, assembles and validates e-filing submission packages, with logs and test submission facilities.


Analytics are there to track compliance progress & deadlines, team performance and unlock insights from tax data. The report designer module allows you to create highly configurable bespoke reports across the Alphatax database.

Alphatax additional elements

While Alphatax includes data management and workflow reporting and analytics capabilities,
you can make the most of your investment by taking advantage of the following:

Accounts Integration

Streamline your compliance process, reducing the risk of error from manual data entry.

  • Flexible mapping from multiple data sources.
  • Covers many different types of computations​
  • Full audit trail – records raw data imported

Report designer

Powerful tool to access complex data and compare it across entities & groups.

  • Mine data from tax computations.​
  • Includes standard report templates.
  • Easily create highly bespoke reports.


Prepare and e-file tax computations and SA800 tax returns.

  • Comprehensive coverage of partnership types.
  • Automatically applies appropriate tax rule calculations.
  • Options for profit sharing approaches.
  • Posting to partner computations.

Hosted plus

Alphatax is also available as a hosted option, accessible via a secure web browser.

  • High availability, automatic updates.​
  • Tax data is always secure and backed-up.
  • Includes CCM, Doc Manager, Snapshots.

Alphatax Pillar Two

Alphatax Pillar Two fully complies with OECD and UK legislation whilst delivering advanced data management capabilities.

Alphatax Pillar Two is designed to not only to give you peace of mind that any top-up-tax due is correct, but to streamline the arduous task of gathering and inputting the required data from multiple in-country teams and systems.​

De-risk, simplify, and optimise. ​

We’re helping our customers meet the challenges that future of tax brings by digitalising their tax processes and revolutionising their compliance operations.

read more

Let's talk!

Leave your details below and we’ll give you a call – you can tell us what you’re looking for, and we’ll tell you how Alphatax can help.

    Tax compliance for everyone...

    We work with organisations across a broad range of industries; from accounting firms to healthcare, manufacturing and construction to retail, charities and not for profits to finance & banking, insurance to education. We’re tax compliance experts, so you don’t have to be.


    Organisations can greatly improve the efficiency of their teams by allowing skilled staff to focus on value added work and reduce risk while forging a more strategic relationship with advisors.​

    We’re proud to have over 1,000 corporate customers including 42 of the FTSE 100.

    Advisory Firms

    Advisors can greatly improve the efficiency of their teams by allowing skilled staff to focus on value added work and reduce risk whilst creating more effective collaboration with clients.​

    We’re the leading provider of tax compliance software to over 200 accounting firms.

    Contact Us

    Give us a call or fill in the form below and we will contact you. We endeavor to answer all inquiries within 24 hours on business days.