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ONESOURCE Determination

Global Tax Determination Software

Get Tax right , first time, everytime

Get accurate sales, use & excise tax, VAT, and GST for your indirect tax calculations

Our on-premise and cloud-based solution allows companies to automate transactions without the headache of managing and maintaining an in-house tax engine or reporting system. Many Fortune 500 companies have relied on our patented global tax technology for more than a decade. Because it’s in the cloud, our tax automation software can scale quickly to the size of your company, for less cost. 

10 benefits of Inhouse tax expertise 

Easily manage Indirect tax around the world

The only patented, end-to-end automated solution to accurately calculate sales, use, and excise tax, GST, and VAT.

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Powerful integrations to ERP and financial applications

Keep using the business systems you know and love, while improving the way you manage global transaction

Flexible integration

Use standard APIs to connect your global sales tax software behind the scenes for a seamless experience, instead of worrying about complex software implementations.

Consistent compliance

Connect to ERP, financial, billing, and e-commerce payment systems through pre-built and custom integrations to make sure your global indirect tax calculation is standard across the global.

Trusted tax information

Reduce the risk of audit-triggering mistakes, thanks to our in-house expertise with Audit files and reports.

Powerful personalization

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

Case study

Lenovo, Inc. integrates transaction tax solutions globally for the new world


Case study

Adobe transforms their global indirect tax process with ONESOURCE Determination 

Ready to build in-house Tax expertise with automation?