by Paul le Roux | Sep 10, 2026 | Sales Tax Basics & Updates
Is SaaS taxable? In roughly 20+ US states, yes — but the classification, rate, sourcing rule, and B2B vs B2C treatment differ in every one of them. This guide gives you the full 50-state matrix, statute citations from primary DOR sources, and the sourcing rules that...
by Paul le Roux | Sep 10, 2026 | Sales Tax Basics & Updates
If a US state has found you owing sales tax you didn’t collect, you’re not just paying the tax. You’re paying the tax plus a late-filing penalty, plus a late-payment penalty, plus daily interest going back to the original due date — and in some...
by Paul le Roux | Sep 10, 2026 | Sales Tax Basics & Updates
Short answer: You must register for sales tax in a state the moment you establish nexus there — either physical (an employee, an office, or inventory in the state) or economic (crossing that state’s revenue or transaction threshold). Physical nexus triggers...
by Paul le Roux | Sep 10, 2026 | Sales Tax Basics & Updates
If a state Department of Revenue has sent you a nexus questionnaire, an audit notice, or a Notice of Determination — the single most important decision you’ll make in the next 30 days is who talks to the auditor. For most ecommerce sellers, the answer should not...
by Paul le Roux | Sep 10, 2026 | Sales Tax Basics & Updates
If a marketplace collects sales tax on your behalf, you are not done. You may still need to register, file zero returns, pay separate gross-receipts taxes, manage your own direct channels, and respond to state notices — in up to 46 jurisdictions simultaneously. This...
