Alphatax vs CSC Corptax
Alphatax
alphatax.comCSC Corptax
cscglobal.comSide by side
| Figure | Alphatax | CSC Corptax |
|---|---|---|
| Price from | — | — |
| Free plan | — | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| API | Yes | — |
| Plans published | 0 | 1 |
| Spec score · Corporate Tax Software | 7.9 (#6) | 7.8 (#7) |
| Company history | The company says Alphatax, formerly known as Tax Systems, was founded in 1991. | CSC says it was formed in 1899 by Delaware attorneys Josiah Marvel and Christopher Ward. |
| Founded | 1991 | 1899 |
| Headquarters | The site lists Magna House, 18–32 London Road, Staines-upon-Thames, TW18 4BP as its address. | Wilmington, Delaware, USA |
| Integrations | The Corporate Tax product offers APIs to connect with third-party systems and data, and Alphamap integrates with Alphatax for data mapping. | Corptax lists connectors for Microsoft Power Automate, Excel through Corptax Office, Alteryx, and Microsoft Power BI. |
| Support | Customer support is available Monday to Friday, 09:00–17:30, and the company says 90% of queries are resolved within 24 hours. | Corptax advertises support plans named Silver, Gold, and Platinum, a 99% satisfaction rating, training, and professional services. |
| Training | The company provides instructor-led customer training courses developed by tax professionals. | Corptax offers in-product videos, webcasts, and CPE classes, according to its product page. |
Plans
In their own words
Alphatax
Alphatax provides tax compliance software for corporate tax, VAT, tax provisioning, and Pillar Two reporting. Its Corporate Tax product supports compliance in the UK, Ireland, and UAE, and prepares and e-files iXBRL-compliant returns. Deployment options include cloud, on-premise, and hosted; APIs connect with third-party systems and data, while Alphamap supports data mapping. Alphatax VAT includes HMRC-recommended and custom data checks, partial exemption support, group VAT consolidation, trend comparisons, and reporting. Pillar Two tools support GIR and QDMTT compliance and filing workflows across jurisdictions, with direct filing where available and alternatives where it is not. Loctax AI Assistant offers source-backed tax research across 220+ jurisdictions, document analysis, and memo drafting. Pricing is on request. A free 14-day trial is available for Alphatax Provisioning through an enquiry form. The company lists support hours Monday to Friday, 09:00–17:30, and says 90% of customer queries are resolved within 24 hours.
CSC Corptax
CSC Corptax is web-based software for enterprise tax departments, bringing tax compliance, income tax provision, reporting, and filings together in one system. It centralizes tax data and workflows for U.S. and global compliance, provision, and planning, including Pillar 2 and U.S. international and domestic tax work. Compliance tools automate calculations, forms, data dependencies, adjustments, and apportionment across federal and state reporting. Corptax GMT supports safe harbor and top-up tax calculations, financial reporting data, GloBE Information Returns, and local notifications and filings. Corptax Analytics runs within Corptax Web with prebuilt dashboards, state heatmaps, refreshes, and alerts. Connectors include Microsoft Power Automate, Excel through Corptax Office, Alteryx, and Microsoft Power BI; users can also connect data to third-party tools, databases, and analytics applications. Entity Management holds legal entity, ownership, organization chart, and entity group data in a shared database. CSC offers Silver, Gold, and Platinum support plans, training, and professional services. Pricing is available on request, and the product page invites visitors to request a demo.