ONESOURCE Indirect Tax Determination

About ONESOURCE Indirect Tax Determination

Every number Thomson Reuters publishes about ONESOURCE Determination is a scale number, and that is the point of the product. Content coverage spans more than 205 countries and territories, over 60,000 tax jurisdictions and more than 460,000 product and service codes, with over 2.8 million content changes made in a single year — which is the real work in enterprise indirect tax, since rates and taxability rules move constantly and a stale rule is an audit finding. Throughput is quoted at 10 million transactions an hour at roughly 40-millisecond response times, and updates ship with no downtime so calculations never pause for a content release. Architecturally this is a determination engine, not a compliance service: it sits behind the ERP, billing system, POS or e-commerce checkout and returns the correct sales tax, use tax, VAT, GST or excise amount, via 60+ pre-built integrations including SAP ERP and S/4HANA, Oracle ERP Cloud and Microsoft Dynamics 365 Finance and Operations. A 'Determination Anywhere' edge deployment pushes calculation close to the transaction origin to cut latency and satisfy data-residency rules. Around the engine sit Certificate Manager for exemption certificates, USPS CASS-certified address validation, scenario modelling, transaction editors and generative-AI support through CoCounsel. No pricing is published anywhere — this is a quote-only enterprise sale requiring implementation, alongside Vertex, Avalara and Sovos rather than the startup-priced tools in this category. Named users include Cisco, General Motors, Adobe, Wayfair and Lenovo.

Pricing

Model

Paid

Notes

Verified 2026-08-27. No pricing is published on any Thomson Reuters page for ONESOURCE Determination: the product and features pages route to 'Request free demo' or a sales phone number (888-885-0206). This is a quote-only enterprise contract, scoped by transaction volume, entity and jurisdiction count, deployment model and which surrounding modules (Certificate Manager, Determination Anywhere edge deployment, compliance/reporting) are included, and it carries a systems-integration project rather than a self-serve signup. No starting price is recorded and none should be inferred; buyers should expect a multi-month implementation alongside the licence cost. This places ONESOURCE with Vertex and Sovos at the enterprise end of the category, not against per-market or per-filing tools such as Anrok, Numeral or Kintsugi.

Key Features

• Global determination engine covering sales tax, use tax, VAT, GST and excise across 205+ countries and territories and 60,000+ jurisdictions
• Tax content library of 460,000+ product and service codes, maintained with millions of rule and rate changes per year and zero-downtime updates
• Quoted throughput of 10 million transactions per hour at roughly 40ms response times, with auto-scaling and self-healing infrastructure
• 60+ pre-built ERP and commerce integrations including SAP ERP and S/4HANA, SAP Ariba, Oracle ERP Cloud and Microsoft Dynamics 365 Finance and Operations
• Determination Anywhere: edge-computing deployment that runs calculation close to the transaction source for latency and data-residency requirements
• Certificate Manager for exemption certificate collection and validation
• USPS CASS-certified address validation and cleansing to improve rooftop-level rate accuracy
• Scenario modelling for forecasting tax outcomes, plus transaction editors and customisable reporting and analytics
• SOC 1 and SOC 2 certification renewed annually; CoCounsel generative-AI support inside the product

Platforms

• Web
• API

Alternatives to ONESOURCE Indirect Tax Determination

• Vertex
• Avalara
• Sovos
• Fonoa
• Taxually