The European Securities and Markets Authority (ESMA), with national regulators in France, Germany and Greece, has opened a formal probe into Binance's continued servicing of EU customers after the MiCA transition period ended July 1, according to a Financial Times report dated October 1, 2026.

ESMA has demanded documentation explaining the legal basis on which Binance keeps serving European clients. The dispute centers on whether the exchange improperly invoked the "reverse solicitation" exemption—a narrow provision permitting non-EU entities to serve European customers only when those customers initiate contact entirely on their own initiative, without promotional outreach.

ESMA's stated position holds that reverse solicitation must be read restrictively, as a limited exception rather than an alternative pathway to circumvent MiCA compliance.

What is the underlying licensing dispute?

Binance submitted a MiCA authorization application earlier in 2026, but authorities denied the request. The exchange subsequently withdrew a separate Greek licensing application after anticipating rejection, per the Financial Times.

Under MiCA, digital asset firms needed proper authorization before the end of June to maintain EU-wide operations. Lacking credentials, Binance should have stopped accepting new European clients beginning in July.

How are users still accessing Binance?

Multiple sources indicate the exchange continued serving some European customers through the third and fourth quarters of 2026. Some users reportedly access the platform via an Abu Dhabi-based entity, fully authorized by the Financial Services Regulatory Authority of Abu Dhabi Global Market (FSRA ADGM) in December 2025.

That authorization enables Binance to operate internationally but confers no status as an EU-regulated provider.

What enforcement consequences could follow?

If regulators determine that Binance's reliance on reverse solicitation exceeds what MiCA permits, enforcement could include financial penalties, restrictions on onboarding new EU customers and limits on certain services.

No monetary penalties or formal proceedings have been announced. The full parameters of the investigation remain undisclosed.

Binance representatives, in comments to the Financial Times, said the organization continues pursuing full MiCA authorization and emphasized its commitment to regulatory compliance within all operational jurisdictions. Reuters said it could not independently verify all aspects of the FT reporting; neither Binance nor ESMA responded to Reuters' request for additional comment.

How does the probe fit MiCA's broader rollout?

The investigation highlights enforcement challenges inside a framework designed to unify crypto oversight across the EU single market. Transitional arrangements were intended as a short-term bridge, not a permanent workaround. Firms relying on grandfathering must still pursue full MiCA authorization.

Implementation across the bloc is uneven:

• Greece recently registered its first MiCA-authorized crypto-asset service providers.
• Spain has applied its own interpretation to crypto disclosure requirements.
• Other member states are tightening the window for firms operating under transitional rules.

What is at stake for European users?

Customers face the practical question of continued access to Binance's trading, custody and product offerings. Availability will likely vary by jurisdiction since MiCA's transitional provisions differ across member states.

A broader market consequence is liquidity displacement. Binance processes a substantial share of global Bitcoin spot volume; any disruption to its European operations would redirect order flow and on-chain settlement to other venues, reshaping the metrics analysts use to track market structure.

What happens next?

Until ESMA issues a formal determination, Binance's EU operating status remains unresolved. The probe's outcome will set precedent for how international exchanges approach MiCA's grandfathering clauses and reverse solicitation carve-outs across the bloc's single market.