The EU Digital Markets Act became applicable on May 2, after entering into force in November 2022; enforcement on gatekeepers is not expected until spring 2024
Context & Ripple Effects
The DMA's applicability date closes a chapter that began with repeated slippage in finalizing the DMA and DSA, which had pushed an initial spring 2022 goal well into the following year. The law then cleared adoption with thresholds aimed at companies with €75B+ market caps and tens of millions of users, making its scope effectively a list of named Big Tech platforms.
What changed today is legal status, not behavior: obligations are now binding on paper while actual enforcement against gatekeepers waits until spring 2024, leaving a nearly year-long runway that both regulators and the designated firms will use to prepare.
First-order effects
- Gatekeepers meeting the market-cap and user thresholds now face binding DMA obligations on paper and must begin compliance work ahead of spring 2024 enforcement, when the European Commission can open investigations and levy sanctions.
- The Commission gains its formal mandate over these platforms today, shifting from legislating to preparing designation and enforcement machinery during the grace period.
Second-order effects
- Designated platforms' business practices — default settings, data sharing across services, app store terms — become the negotiating surface between Brussels and Big Tech well before any fine lands, shaping product decisions through anticipation rather than penalty.
- Rival apps and smaller platforms stand to gain distribution leverage once gatekeepers must open interfaces and loosen self-preferencing, though real benefits only arrive when enforcement actually starts.
Third-order effects
- If the pattern holds, the EU's playbook — pass the law, name the targets by size threshold, then enforce on a delayed clock — repeats with the AI Act, where member-state approval preceded the law taking effect with compliance deadlines stretching years out, institutionalizing long-runway regulation as the standard model.
- Platform governance increasingly functions as market access: complying with Brussels-designed rules becomes the price of operating at scale in Europe, a template other jurisdictions may copy for their own gatekeeper regimes.
The trend: EU platform regulation is moving from drafting to applied law, with the DMA's applicability marking the first test of whether size-threshold designations and delayed enforcement can actually reshape gatekeeper behavior.