Alphatax
6.4#3 in corporate tax softwareWebAPIWindows
VisitAlphatax vs Tax Series
Tax Series
6.3#5 in corporate tax softwareWebAPI
VisitWhat both publish
| Fact | Alphatax | Tax Series |
|---|---|---|
| Founded | 1991 | 2000 |
| Headquarters | The site lists Magna House, 18–32 London Road, Staines-upon-Thames, TW18 4BP as its address. | Haworth, New Jersey, United States |
| Integrations | The Corporate Tax product offers APIs to connect with third-party systems and data, and Alphamap integrates with Alphatax for data mapping. | Tax Series Web Services can transfer data bi-directionally between Tax Series and client systems, validate data, and trigger calculations. |
| Product scope | Alphatax offers tax compliance software for corporate tax, VAT, Pillar Two, and transfer pricing. | Tax Series is web-native corporate tax software that supports corporate income tax processes and reuses data across them. |
| Security | Tax Systems says it has been ISO 27001 certified since July 2020, covering information held or processed by Alphatax. | The company says it obtains annual SOC 1 and SOC 2 reports from a third party and has in-house security staff. |
| Support | Customer support is available Monday to Friday, 09:00–17:30, and the company says 90% of queries are resolved within 24 hours. | Each client is assigned a dedicated support representative reachable by phone or email, and the company describes its support as proactive. |
Alphatax plans
No prices published.
Tax Series plans
- Tax SeriesPriced on request
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 Tax Series if…
It suits medium and large multinational corporations and U.S. corporate taxpayers managing corporate income tax processes. Teams looking to connect data collection, compliance, provision, and related tax work may also find its shared database relevant.