Sales tax audits are among the most common — and most disruptive — examinations that restaurant owners face. Unlike federal income tax audits, state sales tax audits can cover multiple years and assess significant penalties and interest on top of any tax due.
The single most important thing you can do is maintain clean, complete sales records. Every transaction, every void, every refund, every promotional discount — documented and reconcilable. State auditors are trained to find gaps, and gaps invite estimates that almost always work against you.
Monthly reconciliation is not optional. Your sales tax filings need to match your POS system totals, your bank deposits, and your general ledger. When these do not align, auditors assume the worst.
Common restaurant-specific issues include: improper taxation of catering vs. dine-in, errors on loyalty program redemptions, and inconsistent treatment of complimentary items. Understand your state's specific rules — they vary significantly.
If you receive an audit notice, your first call should be to a tax professional, not the auditor. How you respond in the first 30 days shapes the entire audit. Coming in with organized records and a clear narrative is far better than scrambling to reconstruct years of transactions under deadline.
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