You Received a Sales Tax Audit Notice. Now What?

The audit notice arrived. Your first instinct might be to call the auditor directly, start pulling together records, or try to handle it internally with your existing advisors. All of those instincts, however reasonable they seem, can hurt you. Here is what the first 72 hours should actually look like, and why each step matters.

Do Not Contact the Auditor Yet

Everything you say to an auditor becomes part of the record. Without representation, you may inadvertently expand the audit scope beyond what the notice requires, waive procedural protections you did not know you had, make informal admissions that narrow your legal options, or agree to a timeline or document production schedule that disadvantages your position before the process has even started. The auditor is a trained professional doing their job. You need a professional doing yours.

Read the Notice Carefully. Then Read It Again.

The notice tells you the audit period being examined, the specific taxes under review, the records being requested, the agency contact and assignment, and most critically, any response deadline. That deadline is not a suggestion. Missing it can result in additional penalties, waived rights, or an automatic assessment against you. Most notices give 30 to 60 days for an initial response. That window feels long until you are trying to gather years of records while also running a business.

Preserve All Records Immediately

Once a notice is in hand, do not delete, alter, or reorganize any business records. Do not move digital files to new locations. Do not shred anything pending a scheduled purge. Document destruction, even accidental, can trigger adverse legal presumptions that are extremely difficult to overcome. Courts and administrative tribunals take document destruction seriously, regardless of intent. Preserve everything in its current state and make a note of the exact date you received the notice.

Understand What the Audit Period Means for Your Business

Most sales tax audits cover three to five years of activity. If your business has been operating for that long, the potential exposure is not limited to the current year. It is every transaction, every exemption certificate, every tax rate determination going back to the beginning of the audit window. A business doing $3 million per year in sales over a four year audit period has $12 million of transaction activity under review. The math on even a small error rate extrapolated across that volume can produce significant assessments. This is why engaging representation early, before the auditor has seen your records, matters so much.

Get a Sales Tax Attorney. Not a Generalist.

Sales tax audits operate under specific procedural rules, evidentiary standards, and challenge opportunities that differ substantially from income tax audits. A general tax advisor can help you organize records, but cannot represent you in a legal proceeding, challenge an assessment on legal grounds, or argue statutory interpretation before a state tribunal. These are legal functions that require a licensed attorney who focuses on sales tax.

A general tax attorney who handles sales tax cases occasionally is not the same as an attorney whose entire practice is built around sales tax controversy. The difference shows in the details: knowing which procedural challenges are available in a given state, understanding how sampling methodology can be contested, recognizing when an auditor has exceeded their authority, and understanding how to structure a rebuttal that actually holds up. The distinction matters when it counts.

What Happens If You Wait

Many business owners respond to the initial notice themselves, provide records without strategic review, sit through the initial meetings without counsel, and then call an attorney after the preliminary assessment arrives. By that point, some of the most valuable defense options are already gone. Statements made, documents produced, and positions taken in the early stages of an audit become part of the permanent record. An attorney who enters the case after the preliminary findings is working with a record that was built without their guidance, and that creates limitations.

Getting representation before the process starts, before the first document is produced and before the first conversation with the auditor, is always the stronger position. It costs less, creates more options, and typically produces better outcomes.