European Union regulatory bodies have launched an inquiry into Binance following reports that the exchange continued serving certain European clients despite failing to secure a Markets in Crypto-Assets (MiCA) license. The Financial Times reported on October 1, 2026, that authorities are examining whether Binance leveraged the "reverse solicitation" provision to maintain these relationships. Under MiCA rules, digital asset firms required authorization by the end of June to operate across EU member states; without it, accepting new clients from July onward would typically be prohibited.

The reverse solicitation exemption allows non-EU entities to provide services only if the customer independently initiates contact without any promotional inducement from the provider. ESMA has stated that this provision requires restrictive interpretation and functions as a limited exception rather than a workaround for compliance obligations. National regulators in France, Germany, and Greece have joined ESMA in requesting documentation from Binance. While no monetary penalties or formal enforcement proceedings have been announced yet, authorities indicated that such measures remain possible if explanations prove insufficient. Binance maintains it is pursuing full MiCA authorization and cooperating with regulators.