Sales tax is one of the most misunderstood parts of ecommerce

Quick Tips
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And for multi-channel sellers, it gets even more complicated.

Most sellers either:

• Ignore it completely

• Assume Amazon or Shopify handles everything

But both are expensive mistakes.

Here is the reality:

• Nexus can exist without a physical presence

• Crossing a threshold creates tax obligations

• Amazon collecting tax does NOT mean your books are complete

• Shopify does not file or remit for you

• Selling on multiple channels increases your exposure

This is where I see the biggest issues.

“Sales tax recorded as revenue”

Thus, missing liabilities

Numbers that look right but are not.

And once your numbers are wrong, every decision built on them is likely wrong.

If you are selling across Amazon and Shopify, this is not something to guess.

Which part surprised you the most?

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This is such an important point and honestly one of the biggest misconceptions among e-commerce sellers.

A lot of people think “Amazon collects the tax, so I’m covered,” but that is often only one small piece of the compliance side. The moment you start selling across Amazon, Shopify, Walmart, Etsy, or your own site, the accounting and nexus exposure can become extremely messy very quickly.

The part that surprises most sellers is definitely that sales tax can accidentally end up recorded as revenue, making the business look far more profitable than it actually is.

Then people make inventory, advertising, and expansion decisions based on numbers that are fundamentally wrong. Multi-channel selling without proper bookkeeping is honestly a disaster waiting to happen.