No. 21 of 26 ·Transfer Pricing Software

TP/OS

Web

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Freedom report

No signalScore 5.1

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedThinly documented

TP/OS is ranked #21 of 26 in transfer pricing software on Freedom251. It runs on Web. A free trial is offered.

TP/OS plans and pricing

All plans

Custom Not published Pricing on request Multiple countries, existing files, tailored setup needed · Includes all Base features · Custom data model extensions · Custom templates and report structure · Joint rollout (we configure together) armslength.ai · 4 Oct 2026

Base Not published Pricing on request Few countries, standard files, best-practice starting point · Ready data model and fields · Ready documentation templates · Role-based review flow · Guided onboarding (your team implements) armslength.ai · 4 Oct 2026

Turnkey Not published Pricing on request High complexity across countries, done-for-you implementation · Includes all Custom features · Complete data setup done by our team · Country-by-country template setup · Done-for-you rollout by our team armslength.ai · 4 Oct 2026

Compared on transfer pricing software

Documentation workflows: Yes
Platform: web

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The record

Product: TP/OS organizes transfer pricing source facts, reuses templates, and supports drafting and annual updates to documentation.
Outputs: TP/OS supports Local Files and Master Files, with localized documentation outputs in the customer’s chosen structure.
AI workflow: The assistant reads source files, fills supported placeholders, and flags omissions and contradictions for review.
Review controls: Teams can request missing information from colleagues, track progress, and review content before sharing.
Word export: TP/OS exports an editable Word file in the customer’s house style.
Trial: A guided trial covers one Local File prepared the prior year so users can review its output and next-year update.
Intended users: The product is presented for transfer pricing advisory firms and multinational in-house tax teams.
Security: ArmsLength AI says its security controls are ISO/IEC 27001 certified and customer project data is stored and processed in the EU.
Client data and AI: The company says customer inputs are used to generate that customer’s outputs and are not used to train foundation models.
Access and SSO: The security page states that SSO/SAML is available via Microsoft Entra ID and Google, with role-based access controls.
Security testing: The company says it conducts annual penetration testing and continuous vulnerability management.
Support: The pricing page lists guided onboarding for Base, a joint rollout for Custom, and a done-for-you rollout for Turnkey.
Product limits: TP/OS setup depends on the customer’s templates and documentation needs, and the company asks customers to confirm country scope and outputs with its team.
Company: ArmsLength AI describes itself as a transfer pricing software company built by practitioners.

Where it ranks on Freedom251

Best Transfer Pricing Software in 2026#21 of 26

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Sources

armslength.ai/transfer-pricing-software· checked 4 Oct 2026
armslength.ai/tp-os· checked 4 Oct 2026
armslength.ai/security· checked 4 Oct 2026
armslength.ai/about-us· checked 4 Oct 2026