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Sales Tax on SaaS and Digital Products

A practical guide for Australian software founders, app developers and digital sellers with customers in the United States


If you sell software, subscriptions, templates, courses or downloads to customers in the United States, here is a question that can quietly cost you tens of thousands of dollars:...


Economic Nexus by State: Sales Tax Thresholds for Online Sellers (2026)

Selling online used to mean one simple rule: if you had no physical presence in a US state, you didn’t collect that state’s sales tax. That changed in 2018. Today, simply selling enough into a state can create a legal obligation to register, collect and remit sales tax there, even if you have never ...

Black Friday Sales Tax Trap

Black Friday and Cyber Monday are the biggest sales weekend of the year, and for Australian businesses selling online into the US, they can be a huge win. But a big spike in US sales can also trigger a tax obligation many exporters have never heard of: economic nexus.

If you cross a US state's sales ...

Introducing Taxcart

We are thrilled to officially announce the launch of Taxcart, a specialized global sales tax compliance company established as a direct subsidiary of Turnaround Services Global (TSG). For over 25 years, TSG has operated as a trusted market leader in digital transformation, business operations, and c...

What Is Economic Nexus?
Learn what economic nexus means, how US sales tax thresholds work, and what e-commerce, SaaS, and international businesses need to know to manage sales tax compliance across multiple states.