Why the same $100 digital sale can legally produce three different tax outcomes

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A software developer has outlined how selling the same $100 digital product to buyers in different countries or tax situations can result in entirely different correct tax treatments. Under EU rules, digital goods sold to consumers are taxed at the buyer's country rate, not the seller's, meaning Irish companies selling to German consumers must apply Germany's 19% VAT. However, if the German buyer provides a valid VAT number, the charge drops to zero percent under the reverse-charge mechanism, and the invoice must reflect that change. Sales to US customers fall outside EU VAT scope altogether, a status legally distinct from zero-rating and one that matters during audits. In the US, tax liability varies further by state, product type, and local district rules, with states like California generally not taxing digital goods at all.

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