How Far Back Can Texas Go in a Sales Tax Audit?

When facing sales tax audits in Texas, businesses have a legal obligation to preserve all records that are potentially relevant to the inquiry. Businesses can face liability for underpayments for all years covered by the audit, and avoiding unnecessary liability requires clear documentation of compliance.

This raises a critical question: How far back can Texas sales tax audits go?

As discussed in greater detail below, Texas sales tax audits can go back four years in most cases. However, there are exceptions—and, in certain scenarios, there is no statute of limitations for sales tax compliance enforcement in Texas.

Texas’ Statute of Limitations for Sales Tax Enforcement

The statute of limitations for sales tax enforcement in Texas is established by Section 3.339(a) of the Public Finance Title (Title 34) of the Texas Administrative Code. Section 3.339(a)(1) states, in pertinent part:

“Except as otherwise provided in this section, the comptroller has four years from the date a tax becomes due and payable to assess a deficiency tax liability. . . .”

While “due and payable” is a complex term that incorporates a variety of legal principles and considerations, generally speaking, businesses must pay sales tax in Texas on a monthly basis. So, if a business owed sales tax on January 20, 2026, for example, the four-year statute of limitations for the relevant sales tax liability would expire on January 19, 2030.

Since Texas has a four-year statute of limitations for sales tax enforcement (in most cases), businesses are required to keep documentation of their sales tax liability for four years as well. The Texas Comptroller’s Office makes this clear, stating:

“You must keep sales and use tax records for at least four years unless the Comptroller gives written authorization for earlier destruction. This applies to all records that pertain to transactions involving sales or use tax liability.”

However, as the Texas Comptroller’s Office also makes clear, if this four-year record retention period expires during a sales tax audit, the business “should retain all records for the period being audited until the audit is completed.” If a business cannot provide documentation to support its nonpayment of sales tax during an audit, the sales in question will be “presumed taxable.”

Exceptions to the Four-Year Statute of Limitations

As noted above, while Texas has a four-year statute of limitations for sales tax enforcement in most cases, there are exceptions. For example, Section 3.339(a)(2) of the Public Finance Title provides for exceptions in the following circumstances:

• A business files a false or fraudulent sales tax return with the intent to evade sales tax liability;
• A business fails to file a sales tax return; or,
• A business files a sales tax return that contains a “gross error,” which is defined as an error that results in an underpayment of 25 percent or greater.

In each of these scenarios, “[t]he statute of limitations does not apply, and the Comptroller may assess and collect taxes, penalties, and interest at any time.”

Additionally, Section 3.339(a)(3) of the Public Finance Title provides that the statute of limitations does not apply when a business has filed a timely refund claim if, “while investigating the merits of the refund claim, the comptroller determines that additional tax is due.” In this scenario, the business has four years to pay the additional amount due.

Businesses Can Agree to Extend the Statute of Limitations in Appropriate Cases

Under Section 3.339(b) of the Public Finance Title, businesses can agree to extend the statute of limitations in appropriate cases. Why would a business agree to extend the statute of limitations for sales tax enforcement? Agreeing to an extension may make sense if the alternative is facing immediate collection action or enforcement litigation in Texas state court. If a business is in the process of negotiating a settlement with the Texas Comptroller’s Office, it could be in the business’s best interests to agree to an extension while working out the final terms of the deal.

Agreements under Section 3.339(b) are subject to various rules and restrictions, including those contained in Section 111.203 of the Texas Tax Code. As with all aspects of resolving state tax controversies with the Texas Comptroller’s Office, pursuing an agreement to extend the statute of limitations, if warranted, requires the advice and representation of experienced tax counsel.

The Statute of Limitations for Texas Sales Tax Enforcement Can Also Be Tolled in Some Cases

Section 3.339 of the Public Finance Title also specifies certain circumstances in which the statute of limitations for sales tax enforcement can be tolled. Tolling pauses the statute of limitations, effectively extending the amount of time the Texas Comptroller’s Office has to pursue enforcement. Tolling can occur as follows:

• “[T]he period following the date of the protest payment to the date of the timely filed lawsuit in district court suspends the statute of limitations for the same contested issues raised;
• “[T]he period during which a judicial proceeding involving a protest suit is pending suspends the statute of limitations for the same contested issues raised;
• “[T]he period during which an administrative redetermination or refund hearing is pending suspends the statute of limitations for the same contested issues raised; and
• “[T]he period during which a bankruptcy proceeding commenced under United States Code, Title 11 is pending suspends the statute of limitations.”

As you can see, while the Texas Comptroller’s Office has four years to initiate a sales tax audit in most cases, there are a variety of exceptions. If you need to know more about the Office’s authority to conduct sales tax audits or the options for defending against a sales tax audit in Texas, we encourage you to contact Brown P.C.

Contact Brown P.C. for More Information

Brown P.C. represents businesses of all sizes in Texas sales tax audits and other sales tax-related enforcement matters and controversies. To request an appointment with a state tax lawyer at our firm, please call 888-870-0025 or tell us how we can reach you online today.