Get even more out of ONESOURCE than you ever thought possible

If your tax or trade data is siloed in separate applications and disconnected systems, or if you’re dependent on manual processes to enter and aggregate it, you’re likely missing out on opportunities to leverage it between your various tools and users.

APIs are actively being introduced across the suite of ONESOURCE solutions, providing you with improved data accessibility, improved efficiency through process automation opportunities, and the ability to establish a simpler, end-to-end tax and trade workflow. Whether you’re connecting to the APIs directly or linking them up to other applications, the ability to transform your tax and trade workflows has never been closer.

Direct Tax APIs

Manage the complete lifecycle of direct tax and compliance in a way that helps you work faster while reducing risk.

ONESOURCE Tax Provision APIs

Automated data streams

Get work done faster and more accurately with using APIs to seamlessly import and export data.

  • Eliminate the chance of errors caused by manually importing data.
  • Schedule or trigger imports without formatting data.
  • Critical when data imports are needed frequently during a short timeframe.

Indirect Tax APIs

Automate sales and use tax, GST, and VAT compliance in one simple software solution to improve accuracy of tax returns and filings.


Efficiently standardize and accelerate the return preparation and filing process from source data to submission. 

Global Trade APIs

Simplify your entire global trade management process with trade compliance information, APIS, and ERP Connectors that automate routine tasks, give you compliance confidence, and save time.

ONESOURCE Denied Party Screening API

Screen with confidence

  • Save time with automated screening that identifies risks and protects the company’s reputation.
  • Minimize penalties and avoid loss of export privileges.

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