When Does a Sales Tax Audit Actually Start?

BOULDER, Colo., Sept. 9, 2026 /PRNewswire/ -- The outcome of a sales tax audit is influenced by how your business manages its compliance. While past compliance gaps can lead to audits, having those gaps doesn't mean your final bill is locked in. TaxValet's new blog post explains how compliance influences your audit results, where hidden exposure comes from, and how to set up your business for a "no change" audit where the state assesses zero dollars due.

Read the full blog here: Your Sales Tax Audit Doesn't Start When You Receive the Notice

The Reality of Audit Exposure

TaxValet's internal data reveals the actual reality of what businesses face when dealing with state audits and historical compliance gaps:

• When an audit does happen, it drags on for an average of 223 days and up to 682 days.
• Properly defending an audit consumes 20+ hours of expert support.
• TaxValet has guided 38 clients through state audits and managed $458,492 in historical exposure from their pre-TaxValet days.
• 45 current clients switched directly to TaxValet from several popular software tool providers to close their compliance gaps.

Where Hidden Exposure Comes From

Sales tax exposure usually comes from honest mistakes, like not knowing when you have crossed a nexus threshold. On top of that, a lot of businesses rely on software to handle sales tax. But what most people don't realize is how manual these tools actually are. Without expert guidance, you must handle the complex setup and updates yourself, which can lead to costly mistakes like choosing the wrong product tax code.

Other common mistakes include missing exemption certificates or simply failing to remit use tax due for untaxed sales. If an auditor finds these mistakes, they often calculate your error rate and apply that percentage across a standard 3- to 4-year lookback period. Keep in mind, if you never registered in a state, the statute of limitations never starts. This means many states can legally audit you all the way back to the exact date you first triggered nexus.

How Expert Support Changes the Outcome

Having an expert on your side means you can clean up compliance errors before the state ever reaches out. And if you are already facing an audit, they can still help you lower your final bill. For clients with historical liabilities, TaxValet successfully reduced 48.9% of all assessed penalties and interest for clients with past exposure from their days before joining TaxValet.

Additionally, state auditors who examine TaxValet's active clients' books find nothing to penalize because they keep their records and filings spotless. In fact, if TaxValet ever makes a mistake that causes penalties, they cover the full cost of the liability caused by that mistake. To date, that cost has been $0.

Proactive Protection & Peace of Mind

The best kind of audit is a "no change" audit where the state assesses zero dollars due. TaxValet helps you achieve this by fixing past mistakes and keeping your books audit-ready every single day. You get complete peace of mind in a single plan that costs a fraction of hiring an in-house specialist.

Media Contact: Candice Lee Sparks, Digital Marketing Manager at TaxValet
Email: [email protected]
Phone: (720) 432-9021

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SOURCE TaxValet