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Worldwide tax calculations on every sales channel

With Quaderno, you aren’t limited to just one country or one platform. Your business gets sales tax, GST and VAT calculations around the world, no matter how you sell your products. If your business is registered for taxes in multiple countries, we’ll cover real-time tax calculations in every jurisdiction. Just connect your sales channels through our easy integrations, and we’ll automate the rest.

Illustration with map of European Union and United Kingdom

VAT software for automatic calculations in the EU and UK

Quaderno automates multiple steps of tax determination for EU VAT and UK VAT. The app collects and stores customer location evidence, required by law, to confirm the buyer’s address and local tax rate. If you sell B2B, we automatically verify your buyer’s VAT ID number, then apply the reverse charge mechanism when necessary. Finally Quaderno applies instant VAT calculation to your sale – and follows up with an automatic invoice.

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Sales tax calculation software for the US

Quaderno simplifies and automates sales tax determination across the 50 states. Our database detects where your customer’s location uses origin- vs. destination-based sales tax rates. We apply the correct rate to every transaction, performing instant sales tax calculations at the point of purchase. If you want, we’ll send an automatic receipt, too!

Illustration with map of Canada

GST software for automatic calculations in Canada

Whether you are based in Canada or just selling to Canadian customers, Quaderno automates the tax determination for each sale based on your customer’s location. With up-to-date tax rates in our database, our tax calculation software applies instant GST calculations directly at checkout. This includes provincial taxes like PST, QST and RST.

FYI: We also offer GST calculations for Australia, New Zealand, India and more!

Illustration of automatic tax calculation.

Customized tax calculations for your business

If you want a flexible and customizable solution, the Quaderno tax calculator API lets you build real-time tax calculations directly into your business. Our sales tax API comes with detailed documentation & a free sandbox environment. All you need to get started is a few lines of code.

Learn more about Quaderno API

AdTranquility Logo

Quaderno helped us streamline the tedious process of international tax compliance, allowing my businesses to focus on growth, rather than paperwork. Their exceptional customer support is prompt, knowledgeable, and reliable. Their comprehensive features, user-friendly UI/UX and stellar customer-oriented approach is what makes Quaderno our go-to solution for hassle-free i18N tax management.

Monica ZamfirCOO

Trust us with tax rates

Quaderno’s tax calculations are automatic and precise, worldwide. In fact, our platform helps you manage every aspect of sales tax, VAT & GST compliance.