Freedom251 › Transfer Pricing Software
TP/OS
What TP/OS is
TP/OS is web-based transfer pricing software from ArmsLength AI for advisory firms and multinational in-house tax teams. It organizes source facts, reuses templates, and supports drafting and annual updates for transfer pricing documentation. The system produces Local Files and Master Files in a customer’s chosen 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 an editable Word file in the customer’s house style. A guided trial covers one prior-year Local File and its next-year update. Plans are Base, Custom, and Turnkey, with pricing on request. ArmsLength AI says project data is stored and processed in the EU, security controls are ISO/IEC 27001 certified, and customer inputs are not used to train foundation models. SSO/SAML and role-based access controls are available.
Who it suits
TP/OS is aimed at transfer pricing advisory practices and multinational tax teams handling recurring documentation across countries. It suits teams that need review workflows and outputs shaped to existing templates.
What it does well
- Local File and Master File outputs
- Editable Word export
- Flags omissions and contradictions
- Colleague requests and progress tracking
- Guided trial available
What to know first
- Pricing requires a request
- Setup depends on templates and documentation needs
- Country scope must be confirmed
- Web platform only
Limits
All plans are priced on request. Base is described for a few countries and standard files; setup depends on customer templates and documentation needs.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Custom | 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) | On request |
| Base | 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) | On request |
| Turnkey | 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 | On request |
| TP/OS Documentation | Country scope and outputs confirmed during setup · guided onboarding discussed with provider | On request |
As armslength.ai lists them, read 4 Oct 2026. The maker's own page has the final word.
Getting started
- Visit the TP/OS website.
- Contact ArmsLength AI to discuss country scope, outputs, and templates.
- Choose Base, Custom, or Turnkey based on scope and implementation needs.
- Use the guided trial with one Local File prepared the prior year.
- Complete onboarding: guided for Base, joint rollout for Custom, or done-for-you for Turnkey.
Verdict
TP/OS combines source organization, assisted drafting, review controls, and localized transfer pricing files. Its pricing and implementation depend on the customer’s requirements.
Questions
How much does TP/OS cost?
Pricing is on request for Base, Custom, and Turnkey.
Is there a free trial?
A guided trial is available and covers one Local File prepared the prior year, including review of its output and next-year update.
What platform does TP/OS run on?
TP/OS is available on the web.
What documentation can TP/OS produce?
It supports Local Files and Master Files, with localized outputs in the customer’s chosen structure, and exports editable Word files.
Does TP/OS use customer inputs to train AI models?
ArmsLength AI says customer inputs are used to generate that customer’s outputs and are not used to train foundation models.
What implementation options are offered?
Base includes guided onboarding, Custom has a joint rollout, and Turnkey includes a done-for-you rollout. The company asks customers to confirm country scope and outputs with its team.
Facts from TP/OS's own pages
- Access and SSO
- The security page states that SSO/SAML is available via Microsoft Entra ID and Google, with role-based access controls. · armslength.ai, 4 Oct 2026
- Access controls
- Internal access uses least-privilege and role-based controls, with support access limited to necessary scope. · armslength.ai, 15 Oct 2026
- AI drafting
- AI helps draft documentation sections for human review. · armslength.ai, 15 Oct 2026
- AI extraction
- AI helps extract facts from supplied source material. · armslength.ai, 15 Oct 2026
- AI training policy
- Customer inputs are stated not to be used to train foundation models. · armslength.ai, 15 Oct 2026
- AI workflow
- The assistant reads source files, fills supported placeholders, and flags omissions and contradictions for review. · armslength.ai, 4 Oct 2026
- Annual roll-forward
- Teams can reuse mappings and templates for the next annual documentation update while reviewing changed facts. · armslength.ai, 15 Oct 2026
- API capabilities
- The API exposes search, paragraph retrieval and LLM-oriented context-pack endpoints. · armslength.ai, 15 Oct 2026
- API free-tier limits
- The documented free tier allows 60 search requests, 30 paragraph requests and 20 context-pack requests per minute. · armslength.ai, 15 Oct 2026
- API licence
- The OpenAPI specification labels the public API licence proprietary and subject to ArmsLength AI terms. · armslength.ai, 15 Oct 2026
- Audit-log retention
- Raw audit logs are retained for 30 days and then anonymised, with CSV or JSON exports available on request. · armslength.ai, 15 Oct 2026
- 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. · armslength.ai, 4 Oct 2026
- Collaboration workflow
- The interface shows entity projects, review checkpoints and requests for missing inputs from colleagues. · armslength.ai, 15 Oct 2026
- Company
- ArmsLength AI describes itself as a transfer pricing software company built by practitioners. · armslength.ai, 4 Oct 2026
- Company benchmark history
- The launch post says ArmsLength AI had analyzed more than 1,000,000 companies before introducing TP/OS. · linkedin.com, 15 Oct 2026
- Company legal registration
- BizRaport records ArmsLength AI spółka z ograniczoną odpowiedzialnością under KRS 0001130933. · bizraport.pl, 15 Oct 2026
- Company registration date
- The Polish company register entry date is 7 October 2024. · bizraport.pl, 15 Oct 2026
- Encryption
- Data is protected with encryption in transit and at rest. · armslength.ai, 15 Oct 2026
- EU hosting
- Customer project data is stated to be stored and processed in the European Union. · armslength.ai, 15 Oct 2026
- Founders and roles
- A LinkedIn announcement identifies Sven van der Heide as co-founder and Borys Ulanenko as the transfer-pricing specialist leading the venture, with Szymon Koprek as full-stack developer. · linkedin.com, 15 Oct 2026
- Group coverage
- The product is presented for multinational in-house teams managing several entities and jurisdictions. · armslength.ai, 15 Oct 2026
- Guided trial
- ArmsLength AI offers a guided trial based on one Local File prepared in the prior year and its next-year update. · armslength.ai, 15 Oct 2026
- Headquarters
- Kraków, Poland · armslength.ai, 28 Sept 2026
- Incident notification
- The company says affected customers are notified within 24 hours after awareness of a qualifying security incident. · armslength.ai, 15 Oct 2026
Where TP/OS stands on Freedom251
- Transfer Pricing Software#10 of 28