On December 3, 2021, the Maryland Comptroller published notice of its adoption of the digital advertising gross revenues tax regulations (which was originally proposed on October 8, 2021). Per the Maryland Administrative Procedure Act, the final adopted regulations will go into effect in 10 calendar days, or December 13, 2021. (See Md. Code Ann., State Gov’t § 10-117(a)(1).)

The final regulations were adopted almost entirely as proposed, with just two minor changes that the Attorney General (AG) of Maryland certified as non-substantive. Specifically, the changes to the October 8 proposed regulations concern the information that may be used to determine the location of a device and are described by the AG as follows:

• Regulation .02(C): The Comptroller is clarifying language regarding the allowable sources of information a taxpayer may use to determine the location of a device. Specifically, this final action amendment changes “both technical information and the terms of the underlying contract” to “both technical information and nontechnical information included in the contract.”

• Regulation .02(C)(2): The Comptroller is amending the non-exhaustive list of technical information to include “industry standard metrics.”

Practice Note: While “industry standard metrics” is a nice addition to the list of sources that may be used to determine the location of devices for sourcing purposes, significant and fundamental questions and concerns submitted as part of the comments were not addressed by the Comptroller in adopting the final digital ad tax regulations. The tax is subject to multiple lawsuits (both state and federal court) and pending a court order to the contrary is scheduled to take effect beginning January 1, 2022, with the first filing obligation for large taxpayers in April 2022. Taxpayers grappling with how to comply with this new tax are encouraged to contact the authors.