ARKK OTP Automation Platform vs TP/OS
ARKK OTP Automation Platform
arkk.comTP/OS
armslength.aiSide by side
| Figure | ARKK OTP Automation Platform | TP/OS |
|---|---|---|
| Price from | — | — |
| Free plan | — | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | — | Yes |
| Plans published | 1 | 4 |
| Spec score · Transfer Pricing Software | 7.5 (#8) | 7.9 (#6) |
| Headquarters | London, United Kingdom | Kraków, Poland |
| Intended users | ARKK describes the platform as serving enterprise tax and finance teams, including multinational enterprises managing OTP across entities and jurisdictions. | The product is presented for transfer pricing advisory firms and multinational in-house tax teams. |
| Security certification | ARKK says its software is ISO 27001 certified and that the platform uses workflows, team roles, and validations to support access controls and data integrity. | The company states that its information-security controls are ISO/IEC 27001 certified. |
| Support | A dedicated Customer Success team provides onboarding guidance and hands-on support around reporting deadlines. | The pricing page lists guided onboarding for Base, a joint rollout for Custom, and a done-for-you rollout for Turnkey. |
Plans
ARKK OTP Automation Platform
- ARKK OTP Automation PlatformPriced on request
TP/OS
- BasePriced on request
- CustomPriced on request
- TP/OS DocumentationPriced on request
- TurnkeyPriced on request
In their own words
ARKK OTP Automation Platform
ARKK OTP Automation Platform is web software for automating operational transfer pricing for enterprise tax and finance teams. It imports information from business systems, consolidates multiple sources across entities and jurisdictions, and applies transfer pricing policies through an integrated calculation engine. Users can monitor processing by country and segment and automate adjustments as new data arrives. ARKK describes the platform as source-agnostic, connecting with ERP systems, consolidation tools and spreadsheet-based processes. Embedded Power BI provides real-time reporting. Customisable workflows, role-based access, validations and an audit trail support governance, while ARKK says AI error detection learns customer policies over time. The platform is hosted on Microsoft Azure, uses AES 256-bit encryption for stored data and is ISO 27001 certified. Modular implementation may bring customers into operation in weeks, depending on their entities, systems, data quality and methodology complexity. Pricing is on request.
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.