How to Avoid or Survive A Sales Tax Audit

How to Avoid or Survive A Sales Tax Audit

Many small and mid-size businesses hire accountants and bookkeepers with the expectation they’ll help prevent an audit. Unfortunately, it can’t be guaranteed you won’t be audited for sales and use tax. States need sales and use tax revenue to fund essential services, and tax authorities are tasked with ensuring businesses collect and remit the taxes they owe. What you can do is institute best practices, avoid common audit triggers, and position yourself to sail through an audit as painlessly as possible.

Who Gets Audited

Although any business can be audited at any time, certain industries are more vulnerable to audits than others because of how sales and use tax regulations impact their business. In fact, more than half of all audits in the United States target just a handful of industries: construction, food service, manufacturing, retail, and wholesale/distribution.

In addition, auditors often focus efforts on businesses with a high volume of exempt transactions. Specific events, such as late filing or a dramatic change in taxable or exempt sales year-over-year can also draw an auditor’s eye. Perhaps most surprisingly, many audits are aimed at out-of-state companies with ties to the state.

The more you institute best practices, the less likely you’ll raise the red flags auditors seek.

Top Errors Audits Uncover

There’s no one reason businesses are found liable. However, different businesses are prone to different errors, and auditors tend to scrutinize these areas. For example, retailers that sell to consumers in multiple states may not collect and remit tax wherever they have nexus (an obligation to collect). Companies that sell to non-profit entities may not properly charge those entities tax as required (not all non-profits are entitled to a sales tax exemption on all purchases).

And then there’s use tax: Businesses across all industries often fail to remit use tax on taxable items purchased tax-free from vendors in other states, or items taken from inventory for business or personal use. In fact, in South Dakota, use tax errors account for seven out of the top 10 errors found during audits.

Understanding exemptions, use tax obligations, and where you have an obligation to collect and remit sales tax puts you in a strong position to weather an audit should one occur.

What To Expect During An Audit

If audits are universally dreaded — and they are — it’s because they cost businesses time and money. It’s not unusual for an audit of a small or mid-sized company to last between 30 and 45 days, and during much of that time, the auditor is in-house. The average cost of an audit for these companies typically exceeds $100,000, plus back taxes.

While you can’t guarantee an auditor won’t show up at your door, you can help ensure an audit goes smoothly. Make sure you make the auditor comfortable: At a minimum, an auditor should have ample space to do their job. Furthermore, it is wise to institute best practices throughout the year: e.g., exemption certificates should be up to date and readily available, invoices should prove the proper amount of sales tax has been collected and remitted on taxable sales, and records should show that use tax has been paid whenever due. Auditors will only linger where there’s cause to do so; time is money for them, too.


This article was written by Gail Cole and taken from CPA Practice Advisor.

Gail Cole began researching and writing about sales tax for Avalara in 2012 and has been fascinated with it ever since. She has a penchant for uncovering unusual tax facts, and endeavors to make complex sales tax laws more digestible for both experts and laypeople.


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