SA Solution

Award-winning Self-Assessment tax software that accelerates you through your business’ or clients’ tax returns.


Our highly popular, user-friendly self-assessment tax software has been designed specifically for accounting, finance  and tax professionals who prepare multiple returns.

Its highly affordable annual licence enables you to complete individual, partnership and trust tax returns (including the previous three year’s that can be filed online).

Making self-assessment work easy for you and your team

BTCSoftware customers say they like the software’s intuitive layout with context sensitive HMRC guidance notes and the fact that all returns are validated before submission to reduce errors.

The software also includes a built-in task reminder system to reduce the risk of late penalties and the ability to lock individual returns to prevent accidental errors.

Data is simple to retrieve and review on screen and you can easily attach PDF files to a return. Reports generated by the software give a clear summary all the data on return.

Other key features include

  • Creating Individual Tax Returns (SA100), Partnership Tax Returns (SA800) and Trust Tax Returns (SA900) with online filing as standard. Includes Scottish Rates.
  • Automatic link between Partnership (SA800) and partners’ returns (SA100 and SA900)
  • Secure client database to maintain standing data and monitor the progress of returns. Also the capability to view the submission history of returns
  • Returns lockable to avoid accidental changes at the Partner’s end
  • Built in comprehensive Capital Allowance Calculator
  • Automatic preparation and attachment of schedule showing capital gains tax calculations
  • Integrated FTSE 350 dividend database
  • Includes all supplementary pages (Ministers of Religion, Lloyds Underwriters etc)
  • Reports that easily summarise all data on a return.
  • Comprehensive and updateable tax office codes and inclusion of all HMRC help sheets and updated country codes
  • Time-saving auto-complete dates feature
  • Clear status markers enabling you to see the progress of each return
  • Fee-earner allocation by client (to track and maintain client / fee earner responsibility)
  • Integration with many accounts production packages to easily import data, save time and improve accuracy
  • Networkable for up to 10 users
  • Integration with HMRC API’s to pre populate individual tax returns with data already known by HMRC.
  • Intuitive layout with context sensitive HMRC guidance notes.
  • All returns validated before submission to reduce errors.
  • Built in task reminder system to reduce risk of late penalties.
  • Easily attach PDF files to return.
  • Data is easy to retrieve and review on screen.

Easy to install and free unlimited technical support

SA Solution self-assessment tax software is simple to install for network or standalone installations and is also available in a cloud-based option.

Installation includes:

  • Simple install pack which can be used for network or standalone installations
  • Cloud installation directly via our software technical team
  • Interactive quick-start demonstration
  • Simple transfer of client/Director information from most existing self-assessment tax software applications
  • Easy to follow user guide
  • Built-in Tooltips and HMRC help
  • Free technical support


First time filing success rate


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Support queries

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Get Started – Purchase Options

Our licenses are for a 12 month licence and are available as an Unlimited or 30 returns version. Product licenses include 1 year support together with free software updates.

  • SA Solution 30
    • All Features Listed Above
    • Annual License
    • Full UK Support
    • A mixture of 30 Returns - Individual, Partnership or Trust
    • Single user
  • SA Solution
    • All Features Listed Above
    • Annual License
    • Full UK Support
    • Unlimited Returns - Individual, Partnership or Trust
    • Up to 10 concurrent users

Monthly terms are available when two or more Solutions are purchased

Please call our Sales team on 0345 241 5030

Free Trial

Try our software free for 15 days with our compliments

Contact Us

Do you need assistance? Why not send us an email and we’ll get back to you asap.