1. Thomson Reuters Tax & Accounting software and research solutions
  2. Thomson Reuters ONESOURCE corporate tax software and services
  3. Tax provision software | Thomson Reuters ONESOURCE


Tax Provision Simple, intuitive tax provision software to speed up your financial close

Why choose Tax Provision

When it’s time for financial close, time is of the essence — and you rely on accurate tax provisioning to speed up the process. Thomson Reuters ONESOURCE Tax Provision software calculates tax estimates in seconds, and lets you quickly review data with filtering and drill-down capabilities. Plus, you can easily move data from tax provision to other direct tax software, so you only have to enter it once. Which means closing faster, filing earlier, and freeing up time to grow your business.

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Tax Provision in action

How will the 2016 ONESOURCE Tax Provision enhancements take your tax reporting to the next level?


What you get with our tax provision software

Analyze data in seconds

Filter data to focus on relevant subsets, and drill down from consolidated amounts to the lowest level in just 2 clicks.

Review faster

See all tax provision results on the dashboard, so you can see a flow from calculated values to the entries that drive them.

Reduce manual entry

Access all applications in one central location and eliminate duplicate work with the ONESOURCE platform.

Active Workpapers

Add-on module of Tax Provision that embeds custom calculations and Excel® workpapers directly into your provision software.

Global Access

Add-on module of Tax Provision that enables colleagues all over the world to enter information into your provision database.

Uncertain Tax Positions

Integrates with Tax Provision to help you analyze and report tax treatment of open positions under ASC 740-10-50 and IAS 37.

International Tax Calculator

Integrates with Income Tax and Tax Provision to pull the data you need to forecast tax impacts on your global operations.

Properly structuring data for tax provision

“How much do we owe?” doesn’t always have a straightforward answer. In fact, for most modern companies, tax provision is a tremendous data challenge. Discover tips to close faster and file earlier in this white paper.

We knew we needed to implement a tax solution that enabled automation and efficiency. Switching to ONESOURCE was a massive step forward in our transformation process.

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 you can call a representative in your region at

+1 800 865 5257