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Texas comptroller moves to end tax on marketplace fees

On September 30, 2026, Texas Comptroller Don Huffines announced that he signed an executive order directing the comptroller’s office to propose an amendment to Rule 3.330 that would remove marketplace and platform fees from the definition of “data processing services” subject to sales and use tax.

The move represents a significant reversal of the comptroller’s prior approach to marketplace fees. As we discussed in prior Inside SALT posts in 2023 and 2024, the comptroller took the position that commissions charged by marketplace providers could themselves constitute taxable data processing services, even where sales tax was separately collected on the underlying marketplace transaction. The practical result could be tax on as much as 130% of a marketplace sale: tax on 100% of the underlying sale and a second tax on the portion of the proceeds retained by the marketplace provider as its commission.

The comptroller subsequently amended Rule 3.330 in 2025 to formalize that position, providing that marketplace provider services may constitute taxable data processing services when they involve activities such as the computerized entry, retrieval, search, compilation, manipulation, or storage of data or information.

Comptroller Huffines is now directing the agency to reverse course. In announcing the executive order, he criticized the prior interpretation, stating that the agency had “cast a huge net” and adding, “That’s not tax policy. That’s tax invention. A Comptroller doesn’t get to invent new taxes by rulemaking any more than a judge gets to invent new crimes that aren’t on the books.”

The proposed change would take a substantially narrower approach to the taxation of marketplace services and eliminate the additional tax on marketplace fees that resulted from the prior interpretation. According to the comptroller’s announcement, the amendment would remove marketplace and platform fees associated with online retail marketplaces, prepared food and grocery delivery, short-term lodging, ride-hailing and other transportation services, vehicle rental or sharing, pet care, and household and personal services from the definition of taxable data processing services.

The announcement also signals that the new comptroller intends to take a fresh look at the broader sales and use tax treatment of data processing services in Texas. Comptroller Huffines stated that his office will continue reviewing how the tax is interpreted and may propose additional changes in the future. For taxpayers navigating a statute enacted for a very different technological era, a clearer delineation of what constitutes taxable data processing would be a welcome development.

The executive order does not amend Rule 3.330. The comptroller will file a proposed amendment with the Texas secretary of state for publication in the Texas Register, after which the proposal will be subject to a 30-day public comment period.

Companies that previously conceded or otherwise accepted the comptroller’s prior treatment of marketplace fees in an audit or other proceeding should contact the authors to discuss potential next steps, including whether any refund or other procedural avenues may be available.




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Texas Comptroller Proposes Rule Changes Cementing Tax on 130% of Marketplace Sales

In a controversial move, the Texas Comptroller is poised to amend Rule 3.330, Data Processing Services, effectively rewriting the rules to favor the contentious stance it has adopted in recent audits and litigation. This proposed amendment, which aims to cement the aggressive stance the Comptroller has taken in audits and litigation that a marketplace provider’s commission-based earnings are taxable “data processing services,” represents a significant departure from long-standing practices and highlights a disturbing trend of what is effectively a retroactive regulatory adjustment.

A LOOK AT THE PROPOSED CHANGES

The crux of the proposed amendment is the addition of paragraph (b)(5) to Rule 3.330, which the Comptroller explains is being added “to clarify that marketplace providers provide data processing services to their customers as they enter, retrieve, search, manipulate, and store data or information in the course of their business.” New paragraph (b)(5) provides that:

Marketplace provider services may be included in taxable data processing services when they involve the computerized entry, retrieval, search, compilation, manipulation, or storage of data or information provided by the purchaser or the purchaser’s designee. For example, services to store product listings and photographs, maintain records of transactions, and to compile analytics are taxable data processing services.

This new paragraph specifically targets the commissions that marketplace providers charge for facilitating sales, taxing them separately from the underlying transactions themselves. This is not just an expansion of the tax base; it’s a redefinition of what constitutes a taxable service, applying it in ways that were never intended under previous interpretations of the law that considered such commissions nontaxable auctioneer/brokerage fees.

WHY THIS AMENDMENT IS PROBLEMATIC

The Comptroller’s approach is problematic for several reasons, including:

  1. Effective Retroactivity. The proposed amendment seeks to justify an aggressive (and questionable) agency position that the Comptroller has only recently begun to assert in audits and litigation after it quietly revoked a long-standing administrative ruling in 2020. The revocation of this ruling in 2020, without public notice or legislative approval, was a stark deviation from established practices. By changing the rules after the fact, the proposed amendment undermines the stability and predictability of the law.
  2. Double Taxation. If a marketplace facilitates a sale where a consumer pays $100 and the marketplace earns a $30 commission, the proposed amendment would not only tax the $100 transaction but also the $30 commission. This results in an effective tax on 130% of marketplace sales, with the additional 30% a double tax on the portion of the sales proceeds paid to the marketplace provider as a commission. Under this scheme, the Comptroller is demanding that marketplace providers pay tax on 130% of the sales price and charge the consumer for tax on the 100% and the seller for the 30%.
  3. Discriminatory Tax Under ITFA. The proposed amendment subjects commissions earned by online marketplace providers to taxation as data processing services while similar services provided offline, such as commissions earned by auctioneers of oil and gas leases, consignment stores, and real estate agents using [...]

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