How States Really Select Businesses for Sales Tax Audits
- Jessica Meyer, CLFP, Supervisor
- Apr 27
- 2 min read

Sales tax audits are increasing—and not by accident. As states face budget pressure and reduced federal funding, they’re turning to sales tax enforcement as a reliable revenue source. At the same time, economic nexus rules and the growth of digital commerce have expanded their reach, allowing them to identify and pursue more businesses than ever before.
So, how do states decide who gets audited?
Common Audit Triggers
Certain patterns consistently draw attention:
Rapid Sales Growth – Expansion into new states can create nexus earlier than expected.
High Exempt Sales – Missing or inconsistent exemption certificates raise red flags.
Special Registrations – Direct pay permits and similar arrangements often face added scrutiny.
Newly Taxable Activities – States frequently audit businesses in industries with recent tax law changes.
Data Is Driving Decisions
States now rely heavily on data analytics to spot risk. They compare tax returns, marketplace activity, and industry benchmarks to identify inconsistencies—like sales without use tax, unusual exemption levels, or filing patterns that don’t match operations.
Multi-State Exposure Is Growing
States also share information. If one state identifies a potential issue, others may follow—especially where marketplace data or inventory locations suggest broader nexus exposure.
How to Reduce Your Risk
You can’t eliminate audit risk, but you can be prepared:
Map your nexus footprint across all states and channels
Reconcile data regularly to catch and fix discrepancies early
Be audit-ready with clear documentation and response processes
Sales tax enforcement is more coordinated and data-driven than ever. Businesses that stay proactive—by understanding their exposure and maintaining strong internal controls—will be in the best position to manage risk and avoid costly surprises. Contact a member of our team to review your risk exposure and identify opportunities to strengthen your compliance strategy.

















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