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Explore our in-depth articles and resources on all aspects of sales tax, crafted by industry experts to provide you with the insights and guidance you need. From fundamental principles to complex scenarios, our content covers every angle, helping you navigate the nuances of sales tax confidently.

Last updated:

January 1, 2025

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Sales Tax

Estonia VAT Rates and Compliance (2025)

Learn about Estonia’s 2025 VAT rates, registration rules, invoicing, and compliance tips for businesses selling goods or digital services.

Sales Tax

Denmark VAT Rates and Compliance (2025)

Learn about Denmark’s 2025 VAT rates, registration rules, invoicing, and compliance tips for businesses selling goods or digital services.

Sales Tax

What Happens If You Don't Collect or Remit Sales Tax?

Failing to collect or remit sales tax can lead to fines, legal action, and personal liability for business owners. Here's what to know.

Sales Tax

Which States Charge Sales Tax on Vitamins and Supplements?

Find out which states tax vitamins and dietary supplements—and where they're exempt or taxed at a reduced rate. Updated for 2025.

Sales Tax

Is Shopify a Marketplace Facilitator? 

Shopify itself isn't a marketplace facilitator, but the Shopify Shop app is, which can impact tax obligations for sellers.

Sales Tax

How Long Does Trailing Nexus Last and Why Does It Matter?

Learn how trailing nexus can extend your sales tax obligations even after you stop doing business in a state.

Sales Tax

When Did Sales Tax Start in the U.S.?

Today, most states (and many cities and counties) levy sales tax — and more businesses than ever must collect and remit sales tax, thanks to regulations that make online, out-of-state sales taxable. But it wasn't always this way.

Sales Tax

Ecommerce Sales Tax 101: An Online Seller’s Guide to 2025

As your business grows and gains customers in multiple states (and countries), it also takes on new responsibilities related to complying with the tax laws where those customers are located, even if your business has no physical presence there.

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