1. Thomson Reuters Tax & Accounting software and research solutions
  2. Thomson Reuters ONESOURCE corporate tax software and services
  3. Global Tax | Thomson Reuters ONESOURCE
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ONESOURCE Determination
Calculate and record sales, use, and excise tax, VAT, and GST with our global tax determination software

Why choose ONESOURCE Determination

As your business grows, calculating, collecting, and reporting Sales and Use Tax gets more complicated. ONESOURCE Indirect Tax allows companies to automate transactions in the cloud without the headache of managing and maintaining an in-house tax engine or reporting system. Our on-demand cloud solution, built on the same patented global tax technology that Fortune 500 customers have relied on for over a decade, is available to companies of all sizes. Because it’s cloud-based, our tax automation software can scale quickly to the size of your company, for less cost.

With Thomson Reuters ONESOURCE Determination, you can keep using the business systems you know and love, while improving the way you manage global transaction tax.

  • Seamlessly connect to your existing ERP, CRM, e-commerce, or POS platform to make sure tax calculation and compliance is consistent across your company worldwide
  • Integrations available for both the on-premise and cloud versions of Determination
  • Use standard APIs to connect your software behind the scenes for a seamless experience, instead of worrying about complex software implementations
  • Tailor your integration to your specific workflow processes, so you'll be up and running with little to no downtime

For more information about the business systems we integrate with, visit our integrations directory.

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Managing indirect tax compliance around the world

Thousands of domestic and multinational corporations count on Thomson Reuters ONESOURCE for the only truly complete indirect tax solution — from research to determination and compliance.

We wanted a reliable, accurate tax solution that was flexible enough to grow with our company and would give us confidence that our tax activities were accurate.

What you get with our global tax software

Unique patented process

Get the only patented, end-to-end automated solution for sales, use, and excise tax, GST, and VAT on the market.

Powerful integration

Connect to ERP, financial, billing, and e-commerce systems through pre-built and custom integrations.

Trusted tax information

Stay up to date on global tax changes, thanks to our in-house expertise backed by SSAE 18 and ISAE 3402 certified processes.

Powerful personalization

Ensure all your tax liability needs are met with our patented process that handles corporations of all sizes and geographic reach.

Powerful integrations to ERP and financial applications

With Thomson Reuters ONESOURCE Determination, you can keep using the business systems you know and love, while improving the way you manage global transaction tax.

  • Seamlessly connect to your existing ERP, CRM, e-commerce, or POS platform to make sure tax calculation and compliance is consistent across your company worldwide
  • Integrations available for both the on-premise and cloud versions of Determination
  • Use standard APIs to connect your software behind the scenes for a seamless experience, instead of worrying about complex software implementations
  • Tailor your integration to your specific workflow processes, so you'll be up and running with little to no downtime

For more information about the business systems we integrate with, visit our integrations directory.

See how it works

Have questions? ONESOURCE Determination has answers. Learn how to configure your company structure, set up calculations for global jurisdictions, streamline tax returns, and more.

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Ready to start a conversation?

Need more information about how our solutions can work for you? Drop us a line and someone from our sales team will get back to you. Or call a regional representative at

+1 800 865 5257