Thomson Reuters ONESOURCE Reviews in June 2025: User Ratings, Pros & Cons

Very useful for tax compliance.

PROS: This tool makes tax compliance seem like a breeze. Thanks to it, we can make sure that we adhere to global tax policies and requirements. It's a truly complete and brilliant program. CONS: So far, everything works fine for us. Sure it can be quite costly, but the benefits pay for themselves.

Virtually no learning curve here.

PROS: I'm a fairly new Onesource user, and so far everything works great. Unlike its competitors, ProSystem and Corp Tax, it is user-friendly and is easy to learn. I've successfully identified some potentially damaging errors and have remedied them without any problem--this is all thanks to Onesource. CONS: There are times when Onesource would get too clunky and eventually freeze or crash. Needless to say, this can be quite frustrating.

"Thomson Reuters Onesource - One Stop Shop"

What do you like best about Thomson Reuters ONESOURCE? Thomson Reuters is an industry leader in the provision of tax application software. We subscribe to everything from Tax Provision to Tax Compliance to Transfer Pricing Compliance applications. Thomson Reuters provides a solid platform, capable of completing various tax related compliance efforts. They have an excellent support staff that is ready and willing to help if you get stuck. Their customer relations personnel is friendly, ...

"International Tax Forms "

What do you like best about Thomson Reuters ONESOURCE? Uploading trial balance to the software automatically populated the forms to a certain extent. What do you dislike about Thomson Reuters ONESOURCE? There are numerous issues that I have to call them about Recommendations to others considering Thomson Reuters ONESOURCE: Call when you have questions and be patience with it’s difficulties What problems is Thomson Reuters ONESOURCE solving and how is that benefiting you? Problems include ...

Consolidates our data.

PROS: Onesource helps me keep all of our tax files in order. Through it, we've been able to make sure that our files are complete and accounted for. CONS: We are a fairly small business, and in most areas, it shows that Onesource caters better to bigger companies.

Handles our data accurately.

PROS: One of the things that I love about OneSource is that they always strive to keep themselves updated on the latest policies and requirements on tax sales and compliance. As should be the case for programs that handle delicate matters such as tax, I know that I can trust OneSource to help me generate the data that I need. The reports, so far, have been insightful and accurate. It also pays to trust a solution such as this because then I don't have to waste my time re-checking after ...

"Improvement Needed"

What do you like best about Thomson Reuters ONESOURCE? I can count on this software to have the forms I need for Tax use. What do you dislike about Thomson Reuters ONESOURCE? 1) Customer Service - Thomson Reuters needs to create a user friendly area for users to get help with their software issues and questions since Community Center, Help Center and the call lines are always awful. The help center never pulls up anything relevant via search and customer service reps take forever, are mean, ...

I’ve seen this program grow.

PROS: I've had the pleasure of seeing Onesource grow and become this robust tool that I know today. I've been using it for more than a decade and this has easily become my go-to tool for all things related to taxes. CONS: I understand that this program needs some adjustments. But trust me, if you stick with it, you will soon reap the benefits. Admittedly, it does have its bugs that cause delay though.

I've seen this program grow.

PROS & CONS What are the best aspects of this product? I've had the pleasure of seeing Onesource grow and become this robust tool that I know today. I've been using it for more than a decade and this has easily become my go-to tool for all things related to taxes. What aspects are problematic or could work better? I understand that this program needs some adjustments. But trust me, if you stick with it, you will soon reap the benefits. Admittedly, it does have its bugs that cause delay ...

This has given us a smooth workflow.

PROS: Onesource is a purveyor of all things tax-related. Ever since we implemented this into our workflow, it has cleaned up our data accounting and inter-departmental communication strategy. Thanks to it, we've finally bid goodbye to tedious tax computation processes too. It is an accurate assistant, and I'm glad that we have it on our team. CONS: I still have to learn its ins and outs, but so far, I'm loving everything about Onesource.