Tax Rex ‑ Sales Tax Automation

Oct. 10, 2025

Tax Rex handles all our USA recording, filing, and remittence. This has saved us a lot of time and has allowed us to focus on more strategic tasks. The team is very responsive when we need to resolve issues or ask questions. We appreciate the Tax Rex partnership very much!

Sept. 29, 2025

We have been using Tax Rex for one of our stores for over a year. The setup was straightforward, and the support team guided us when we needed help. Being able to exclude marketplace orders is a big plus for us. We recently added the app to our second store, and the integration was super easy. The support team usually replies within a day or two with helpful answers. Overall, it’s been a really good experience so far.

Sept. 25, 2025

Very helpful customer support, they respond right away.

Sept. 18, 2025

Sept. 15, 2025

TaxRex has been great to work with. There is no comparison between them and Avalara who was a diaster for us.

Sept. 10, 2025

Incredible customer service. Communicative, detailed, knowledgeable, thoughtful, and responsible associates. Quick response times (typically 1-2 business days). They have made state registration and the filing and payment of our sales taxes a breeze. What once was a headache for us and our clients is a headache no more. Can't recommend them highly enough for the services they provide.

Sept. 10, 2025

The absolute best customer support! Like real humans, with real knowledge, that respond really fast... every time.

Aug. 22, 2025

Customer service has been amazing! We had a few glitches, and they were very helpful in getting it all resolved.

Aug. 13, 2025

The Tax Rex team has been on top of absolutely every question I have and have rectified any issues I've had very quickly. I use them for several states to autofile and they are always on top of getting everything filed early and efficiently. So happy with our service!

July 23, 2025

I've been using Tax Rex for over a year now and it has saved me hours of headache trying to reconsolidate all the tax info (especially county tax) for filing each filing period. This year I decided to file using Tax Rex (instead of just having it report it in Shopify) and they took care of everything, which has been a life + time saver. Their customer support is also very responsive, making this app a must have for any small busines sowner!

July 23, 2025

Takes all the worry out of filing away. We've been using this app for over a year now and had no issues. Tech support, on the rare occasion that we have needed it, is quick to resolve any issues. Great investment!

July 21, 2025

I've been using Tax Rex I believe for 2 or 3 years now. I was skeptical at first b/c of such bad experiences in the past with several other services. So I started out only having them manage one or two states in the beginning, but now they manage the majority of states I do work in and I plan to add more when I expand into other states. I highly recommend Tax Rex they also do a good job of communicating via email and are prompt to respond.

July 15, 2025

Tax Rex has been great. Very responsive to our questions and very helpful dealing with annoying sales tax filings. We highly recommend Tax Rex. Just Wash Stuff

July 7, 2025

I switched from Avalara to Tax Rex and OMG what a change! Customer service is way better, they actually respond in a timely fashion and don't sound like robots. Taxes are calculated correctly (unlike Avalara whose calculations were double what they were supposed to be) and they go out of their way to help.

July 7, 2025

The service is easy to use, and the support staff is helpful, thorough and professional.

June 20, 2025

I appreciate the communication and support from the Tax Rex team. It is a pretty simple platform, and gives peace of mind that taxes are taken care of.

June 18, 2025

The state comptroller switched us to monthly sales tax filing, and we missed the notification, so we were late with one month’s filing. Tax Rex responded quickly and had everything taken care of in less than 24 hours. Highly recommend!

June 5, 2025

This app is an absolute must have if you reach nexus in multiple states. Manually dealing with state orgs is such a headache and seriously gave me anxiety in the midst of a busy growing business. Tax Rex has been a lifesaver. I never have to think about taxes. I just get nifty little reports in my email that all has been handled. Last week, I received a state notice for an unpaid month right when we reached nexus and before I'd set up autofile. I was heading out of town and didn't have time to dig into it. I sent an email to Tax Rex support and they handled it while I traveled. Truly a great app and I'm so grateful I don't have to worry about managing taxes anymore.

June 4, 2025

TaxRex has been perfect! I reviewed a lot of tax apps, and there were others that a lot of people knew of and recommended, but after reviewing them, I thought TaxRex would be best and I was right. They have done a great job, they make it easy and most importantly they are VERY responsive. Customer service on these apps are really important and TaxRex shines in customer service.

May 6, 2025

We've had a great experience using the Tax Rex app for managing our sales tax filings. Their support is responsive, and the filing process in Autofile-enrolled states runs smoothly and on time. Highly recommend this app to any business looking for a reliable sales tax solution on Shopify!