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Alphatax vs TP/OS

Alphatax

alphatax.com

TP/OS

armslength.ai

Side by side

FigureAlphataxTP/OS
Price from——
Free plan——
Free trialYesYes
Open source——
WebYesYes
WindowsYes—
APIYesYes
Plans published04
Spec score · Transfer Pricing Software7.9 (#5)7.9 (#6)
HeadquartersThe site lists Magna House, 18–32 London Road, Staines-upon-Thames, TW18 4BP as its address.Kraków, Poland
SecurityTax Systems says it has been ISO 27001 certified since July 2020, covering information held or processed by Alphatax.ArmsLength AI says its security controls are ISO/IEC 27001 certified and customer project data is stored and processed in the EU.
SupportCustomer support is available Monday to Friday, 09:00–17:30, and the company says 90% of queries are resolved within 24 hours.The pricing page lists guided onboarding for Base, a joint rollout for Custom, and a done-for-you rollout for Turnkey.
TrialAlphatax Provisioning’s enquiry form offers a free 14-day trial.A guided trial covers one Local File prepared the prior year so users can review its output and next-year update.

Plans

Alphatax

No plans published.

Alphatax pricing →

TP/OS

  • BasePriced on request
  • CustomPriced on request
  • TP/OS DocumentationPriced on request
  • TurnkeyPriced on request

TP/OS pricing →

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.

Visit alphatax.com

TP/OS

TP/OS is transfer pricing documentation software from ArmsLength AI for advisory firms and multinational in-house tax teams. It organizes source facts, reuses templates, and supports drafting and annual documentation updates. The product supports Local Files and Master Files, with localized outputs in a customer-selected structure. Its assistant reads source files, fills supported placeholders, and flags omissions or contradictions for review. Teams can request missing information from colleagues, track progress, and review content before sharing. TP/OS exports editable Word files in the customer's house style. It runs on the web, with Base, Custom, and Turnkey plans priced on request. A guided trial covers one Local File prepared the prior year, for review of its output and next-year update. Setup depends on the customer's templates and documentation needs, and the company asks customers to confirm country scope and outputs with its team. ArmsLength AI says its security controls are ISO/IEC 27001 certified, project data is stored and processed in the EU, and customer inputs are not used to train foundation models. SSO/SAML is available through Microsoft Entra ID and Google.

Visit armslength.ai