Maryland Comptroller Rejecting DAT Refund Claims without Offering Appeal Rights

Why It Matters

Without a clear appeals process, businesses risk delayed or denied refunds, amplifying financial exposure and regulatory risk in the emerging DAT landscape. The approach signals tighter enforcement that could reshape how digital advertisers manage state tax obligations.

Key Takeaways

• Comptroller issues “Request Received Does Not Constitute a Refund Claim” notices.
• Refund claims rejected for lacking gross revenue and apportionment details.
• No explicit appeal process provided for rejected DAT claims.
• Taxpayers have three years to file a corrected refund claim.
• Potential for increased litigation as businesses contest rejections.

Pulse Analysis

Maryland’s Digital Advertising Tax, enacted in 2024, targets revenue generated from online ads displayed to Maryland users. While the tax aims to capture a share of the booming digital ad market, compliance has proven complex. Companies must calculate total digital advertising revenue, determine the Maryland apportionment, and file detailed returns—tasks that often require sophisticated data analytics and cross‑border accounting. The tax’s novelty means many firms are still refining reporting processes, and the state’s enforcement posture is evolving alongside industry adaptation.

Recent filings reveal the Comptroller’s office issuing formal rejections titled “Request Received Does Not Constitute a Refund Claim.” The agency cites insufficient disclosure of annual gross digital advertising revenues and the Maryland share needed to compute the tax. Crucially, the notices omit any defined appeal pathway, leaving taxpayers to either accept the denial or submit a new claim that addresses the cited deficiencies. With a three‑year limitation period for refund claims, businesses face a ticking clock to correct and resubmit, heightening the risk of missed opportunities for recovery and potential penalties for non‑compliance.

The lack of an appeal mechanism could prompt legal challenges, as affected firms may argue due process violations under state tax law. Industry groups are likely to lobby for clearer guidance and a formal review process to mitigate uncertainty. In the interim, advisors recommend that advertisers maintain meticulous revenue records, perform robust apportionment calculations, and proactively engage with the Comptroller’s office to pre‑empt rejection. By strengthening documentation and seeking clarification early, companies can better navigate the DAT’s regulatory terrain and safeguard against costly disputes.