Alphatax
6.4#3 in corporate tax softwareWebAPIWindows
VisitAlphatax vs TaxCalc
What both publish
| Fact | Alphatax | TaxCalc |
|---|---|---|
| Company history | The company says Alphatax, formerly known as Tax Systems, was founded in 1991. | TaxCalc says the product began in 1983 when Which? released its first version for the BBC Model B. |
| Founded | 1991 | 1983 |
| Headquarters | The site lists Magna House, 18–32 London Road, Staines-upon-Thames, TW18 4BP as its address. | Wokingham, England, UK |
| Integrations | The Corporate Tax product offers APIs to connect with third-party systems and data, and Alphamap integrates with Alphatax for data mapping. | Accounts Production imports year-end trial balances from Xero, QuickBooks or FreeAgent and can export journals and adjustments back. |
| Support | Customer support is available Monday to Friday, 09:00–17:30, and the company says 90% of queries are resolved within 24 hours. | The company says every licence includes unlimited UK-based support from accountancy-trained specialists by phone and email, Monday to Friday. |
Alphatax plans
No prices published.
TaxCalc plans
- TaxCalc 2026 Individual 6£42 a year
- Engager Practice Management — up to 5 clients£9 a month
- Self Assessment tax software£42, paid once
- Accounts Production 12£164 a year
- Individual 12£187 a year
Pick Alphatax if…
Alphatax suits corporate tax and finance teams managing compliance, tax provision, VAT, or Pillar Two across entities and jurisdictions. Alphatax Pillar Two is described for multinational organisations.
Pick TaxCalc if…
TaxCalc may suit UK accountancy practices, in-house finance teams, sole traders and individuals preparing returns or statutory accounts. Its product range includes support for self-employment and investment income.