Maryland digital ad tax struck down as unconstitutional by state court

The invalidation of this tax provides immediate financial relief for streaming platforms like Peacock and Apple that faced levies of up to 10% on Maryland-based ad revenue. By citing the Internet Tax Freedom Act, the court has reinforced a federal barrier against states attempting to treat digital advertising differently than traditional print or broadcast media. This decision creates a significant legal hurdle for other jurisdictions, such as Washington state, currently facing similar litigation from Comcast. Industry observers should monitor the Maryland Comptroller’s appeal process, as a higher court reversal would reignite state-level efforts to capture revenue from global digital platforms.

The Maryland digital ad tax ruling arrives amid a broader wave of state-level efforts to levy digital advertising revenue, several of which face active legal challenges. In Washington state, Comcast filed suit in 2025 against a similar digital advertising tax that would have applied to streaming platforms and digital publishers operating in the state, arguing the measure discriminates against online media in violation of the Internet Tax Freedom Act. The Washington case is widely viewed as a bellwether for whether the federal statute, originally enacted in 1998 and made permanent in 2016, can serve as a durable shield against state digital ad levies nationwide.

The Association of National Advertisers and other industry groups have consistently opposed digital ad taxes on First Amendment and commerce clause grounds, arguing they single out a specific medium for punitive treatment. The Maryland statute, signed by then-Governor Larry Hogan's successor after a veto override in 2021, imposed rates ranging from 2.5% to 10% on digital advertising revenue depending on a company's global gross income, with exemptions carved out for certain broadcast and news entities. That selective exemption was central to the court's finding of discrimination. Ericsson's networks chief Per Narvinger noted at MWC 2026 that AI-driven uplink traffic is reshaping network economics, a trend that increases the volume of programmatic ad transactions flowing through digital channels and could amplify the fiscal stakes of any future state tax attempts on digital advertising.

From a technical and market perspective, the ruling has implications for how streaming platforms structure their ad-supported tiers and report revenue by jurisdiction. Peacock, operated by Comcast, and Apple's advertising business both faced potential liabilities under the Maryland law. Ericsson's blog on agentic AI outlined an 80% reduction in analysis and decision-making time for network operations, illustrating how AI automation is compressing operational costs across the digital infrastructure stack that underpins ad delivery. For streaming services, the removal of state-level ad tax uncertainty reduces a variable cost that could have influenced pricing decisions for ad-supported subscription tiers, particularly in markets where platforms compete on CPM rates against broadcast and cable incumbents.