ONESOURCE Tax Provision

Tax Provision software

Automate your corporate financial close and save time during the tax provision process

Why choose Tax Provision software

When it’s time for your corporate financial close, time, accuracy, and efficiency are critical. With tax provisioning software, you speed up the process of reporting your company’s current and deferred income taxes for the current year. All steps are automated in a single, user-friendly platform. Thomson Reuters ONESOURCE Tax Provision software calculates corporate 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 solutions, so you only have to enter it once. Automation during the tax provision process results in more efficiency across the tax lifecycle. Which means closing faster, filing earlier, and freeing up time to grow your business.

See how it works


What you get with our Tax Provision software for corporations

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.


Embeds custom calculations and Excel® workpapers directly into your tax provision software.

International Tax Calculator

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

Uncertain Tax Positions

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

Integrations & Connections

The power of connected tax

ONESOURCE Tax Provision can connect and integrate with tax systems to automate more of the financial close through a more connected experience from ERP to Tax. Improve the accuracy and efficiency with the power of automation from connecting existing systems with ONESOURCE.

Learn more about our solutions

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

+1 888 885 0206