One of the biggest tax compliance traps for U.S. businesses is sales tax nexus. Selling online? Serving customers in other states? You may owe sales tax—even if you don’t have a physical presence there.
Common mistakes:
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Not tracking economic nexus thresholds (e.g., 200 transactions or $100K in sales).
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Thinking marketplaces handle all tax obligations.
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Assuming services are always non-taxable.
How to avoid it:
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Monitor where your customers are and your total sales volume by state.
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Use sales tax software or consult an accountant familiar with multistate compliance.
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Register and remit sales tax where required to avoid interest and penalties. Learn more via Streamlined Sales Tax Governing Board
Sales tax is no longer just a local issue—it’s a national compliance minefield.
