Overview

Alphatax serves more than 1,300 customers and has operated since 1991. Its products focus on organisational tax work rather than individual returns: Corporate Tax covers compliance in the UK, Ireland and UAE, while Pillar Two targets multinational organisations. Provisioning is designed for in-house tax and finance teams working across multiple entities, contributors, currencies or jurisdictions.

Key features

Corporate tax and filing

Corporate Tax prepares and electronically files iXBRL-compliant returns in the UK, Ireland and UAE. Cloud, on-premise and hosted deployment give organisations meaningful choice about where the software runs. APIs connect to third-party systems and data, and Alphamap supports data mapping. Consolidated returns, tax provision support, accounting integrations and approval workflows suit coordinated reporting, though the stated country coverage may not fit teams with obligations elsewhere.

VAT and provisioning

Alphatax VAT combines HMRC-recommended and custom data checks with partial exemption support, group VAT consolidation, trend comparisons and reporting. Those capabilities are most relevant to organisations managing VAT across a group; they may be more than a single-entity operation needs. Provisioning has a free 14-day trial, but the offer is specific to Alphatax Provisioning and should not be assumed to cover the whole suite.

Pillar Two and tax research

Pillar Two supports GIR and QDMTT compliance and filing workflows across jurisdictions, with direct filing where possible and alternatives where it is not. Loctax AI Assistant provides source-backed research across more than 220 jurisdictions and can analyse documents, draft memos and use an organisation’s data and structure. This combination is aimed at complex multinational work, not a general-purpose research need.

Security and support

Tax Systems says it has been ISO 27001 certified since July 2020, encrypts data at rest and in transit, and hosts its UK cloud service on Microsoft Azure UK West and UK South. Support is available Monday to Friday, 09:00–17:30; the company says it resolves 90% of queries within 24 hours. Instructor-led training developed by tax professionals may help teams onboard, though support hours are weekday-only.

Pricing

Alphatax is paid, with custom pricing. The Provisioning enquiry form offers a free 14-day trial; teams should confirm which products are included and what happens after the trial. No seat or usage limits are stated. Custom pricing makes it important to scope the required products, jurisdictions, deployment and support before comparing costs.

Platforms

Alphatax is available via web, Windows and API. Corporate Tax can be cloud-hosted, on-premise or hosted, giving IT teams options to match operational requirements.

Who it's for

Alphatax is a strong candidate for corporate tax, finance and tax teams managing group reporting, VAT or multinational obligations. Its specific Corporate Tax coverage fits UK, Irish and UAE compliance needs. It is less suited to individuals or organisations seeking a simple filing tool, and teams operating in other jurisdictions should verify coverage before committing.

Pros and cons

Pros: Corporate Tax supports electronic iXBRL filing in three named jurisdictions, with cloud, hosted and on-premise deployment.
Pros: VAT checks, group consolidation and partial exemption support address more involved group processes.
Pros: Pillar Two workflows and research spanning more than 220 jurisdictions serve multinational requirements.
Cons: Custom pricing makes budget comparisons difficult without an enquiry.
Cons: The Provisioning trial lasts 14 days and may not cover the wider suite.
Cons: Corporate Tax’s stated country coverage is limited to the UK, Ireland and UAE.

Alternatives

For an alternative corporate tax product with a free subscription and unlimited clients, consider Sage Corporation Tax. Complete Tax Solutions and CSC Corptax are paid alternatives with pricing by enquiry or demo. Consider PowerPlan Tax Provision as another paid tax provision option. Tax Series is paid, offers a free trial and sets licensing based on scope established during proof of concept. TaxLab Nucleus, Bloomberg Tax and GoSystem Tax RS are also paid alternatives.

For category comparisons, browse Corporate Tax Software, Transfer Pricing Software and Tax Compliance Software.

Verdict

Choose Alphatax if your organisation needs a coordinated suite for corporate tax, VAT, provisioning or Pillar Two, especially across multiple entities or jurisdictions. Its strongest case is the combination of filing, deployment flexibility and multinational workflows. Look elsewhere if you need a low-cost, openly priced product or Corporate Tax coverage beyond the UK, Ireland and UAE.

	Aibidia	Alphatax
Free plan	No	No
Free trial	Yes	Yes
Paid from	—	—
Open source	No	No
Platforms	Web	api, Web, Windows
Benchmarking tools	Yes	—
Documentation workflows	Yes	—
Scenario planning	Yes	—
Country-by-country reports	Yes	—
Platform	web	—

Aibidia vs Alphatax

Aibidia

Alphatax