Christy Bieber

Christy is a personal finance and legal writer with a JD from University of California, Los Angeles. She has written for WSJ Buy Side, Fox Business, CBS MoneyWatch, Miami Herald, CNN Underscored, and more.

Christy Bieber

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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.