Texas Economic Nexus: The $500,000 Threshold for Remote Sellers

Texas uses a $500,000 economic nexus benchmark to determine when many remote sellers must register to collect Texas sales and use tax. The Comptroller describes the safe harbor as applying when a remote seller’s Texas revenue is less than $500,000 during the relevant rolling 12-month period, while an affirmative registration duty is described as arising when that revenue exceeds or is greater than $500,000.

The published guidance does not clearly resolve the treatment of a seller whose revenue is exactly $500,000. A business at that exact amount should not assume that it falls inside or outside the safe harbor without obtaining guidance appropriate to its circumstances.

The calculation also requires a complete view of Texas revenue. For remote sellers that use marketplaces, all marketplace sales count toward the safe-harbor calculation, even when the marketplace provider collects and remits the tax.

How the Texas $500,000 threshold works

Economic nexus allows a state tax obligation to arise from a seller’s economic activity in the state rather than from a traditional physical location. For an out-of-state business evaluating Texas, the first task is to identify revenue attributable to Texas and monitor it over a rolling 12-month period.

The benchmark should be treated as a monitoring rule, not as a one-time annual test. A calendar-year sales report may not show the same result as a rolling 12-month review. Businesses should use a repeatable calculation that can be updated as each new month closes.

The practical comparison is:

• Less than $500,000: The Comptroller describes this amount as within the remote-seller safe harbor.
• Greater than $500,000: The Comptroller describes the registration duty as arising when Texas revenue exceeds the benchmark.
• Exactly $500,000: The current descriptions do not clearly state the result at this exact amount. Sellers at the line should seek clarification rather than relying on an assumption.

This economic-nexus analysis should be kept distinct from other possible connections to Texas. A seller reviewing its broader circumstances can consult Texas Sales Tax Nexus Rules for Out-of-State Sellers in 2026 for additional context.

Sales that belong in the calculation

A reliable threshold review starts by consolidating Texas revenue from every sales channel. That may require combining transactions from the business’s website, direct orders, sales platforms, and marketplace accounts instead of reviewing each channel separately.

Beginning April 1, 2020, all marketplace sales count toward the safe-harbor calculation for remote sellers making Texas sales through marketplaces. This is true even if the marketplace provider handles collection and remittance. The fact that a marketplace performs the tax-collection function does not remove those marketplace transactions from the remote seller’s threshold calculation.

That distinction is important because two separate questions are involved:

1. Does the transaction count toward the seller’s Texas economic nexus calculation?
2. Who is responsible for collecting and remitting tax on that particular transaction?

A marketplace may handle the second issue while the sale still affects the first. A remote seller that looks only at its direct website sales may therefore understate its Texas revenue.

Businesses should document how they identify Texas sales and how they combine data from different systems. Reports should use consistent location fields and date ranges. If a marketplace report and an internal accounting report classify the same transaction differently, the discrepancy should be investigated before relying on the total.

Step-by-step registration and setup process

1. Build a Texas revenue report

Collect transaction data from all direct and marketplace channels. Create a report that isolates Texas revenue and can be refreshed for each rolling 12-month period. Preserve the underlying reports so the total can later be explained.

2. Compare the result with the threshold

Determine whether the rolling total is less than, greater than, or exactly $500,000. Do not round a result near the line, and do not exclude marketplace sales merely because a marketplace collected tax.

3. Review whether registration is required

If the business is above the safe harbor, prepare to address Texas registration and collection obligations. The threshold analysis should be reviewed alongside any other facts connecting the business to Texas rather than treated as the only possible basis for an obligation.

4. Prepare the permit application

There is no fee for a Texas sales and use tax permit, although the Comptroller may require a security bond. Before beginning the application, organize the business’s legal name, ownership information, addresses, responsible-party details, and records describing its activities so the information entered is consistent with existing business documents.

For application-focused instructions, see the Texas Sales Tax Registration Guide for New Businesses and the guide to the Texas Sales and Use Tax Permit application through eSystems.

5. Configure Texas tax collection

A remote seller outside the safe harbor must collect local use tax based on the applicable destination rate unless it elects the single local use tax rate by submitting Form 01-799 to the Comptroller. If the election is made, it applies to all taxable sales made by that remote seller; it is not a transaction-by-transaction choice.

Businesses using destination-based settings should verify that their sales systems can assign the applicable location and rate accurately. The Texas Sales Tax Rates by City overview explains the state-and-local structure without replacing transaction-specific review.

6. Establish recordkeeping procedures

All sellers, including remote sellers and marketplace-only sellers, must retain required sales records for at least four years. A practical file should preserve transaction reports, marketplace statements, Texas revenue calculations, tax-setting changes, returns, and supporting workpapers in an organized and retrievable form.

Practical mistakes to avoid

• Counting only direct sales. Marketplace transactions must be included in the safe-harbor calculation even when the marketplace provider collects and remits tax.
• Using only a calendar-year total. A fixed January-through-December report may not accurately reflect a rolling 12-month measurement. Build a report that updates as the measurement window changes.
• Assuming exactly $500,000 has an obvious result. The published wording distinguishes amounts below the benchmark from amounts above it but does not clearly settle the exact-threshold case.
• Confusing nexus with collection responsibility. Whether a sale contributes to the economic nexus calculation is a different question from whether the seller or a marketplace collects tax on that transaction.
• Making a local-tax election informally. The single local use tax approach requires submission of Form 01-799, and the election applies to all taxable sales made by the electing remote seller.
• Failing to preserve calculation support. A final spreadsheet total is less useful if the business cannot reproduce it from transaction-level data and marketplace reports.
• Stopping monitoring after one review. A seller below the safe harbor should retain a process for updating its rolling revenue calculation as its Texas business changes.

Next steps for remote sellers

Start with a consolidated rolling 12-month Texas revenue report that includes every marketplace and direct-sales channel. Reconcile the report to source records, compare the unrounded total with the $500,000 benchmark, and document the date and method of the review.

If the total is above the safe harbor, move from monitoring to registration and tax-configuration planning. Determine whether destination-based local use tax collection or the Form 01-799 election fits the business’s operating model, and make sure the selected approach is implemented consistently across taxable sales.

If the total is exactly $500,000, or if transaction data cannot be classified confidently, obtain guidance before relying on the safe harbor. Regardless of the result, maintain the underlying sales records for the required retention period and schedule recurring reviews so that changes in Texas revenue are identified promptly.