Tether’s refusal to seek authorization under Europe’s Markets in Crypto-Assets (MiCA) framework was driven by one reserve rule rather than a general objection to oversight. MiCA requires issuers of significant stablecoins to keep at least 60 percent of backing assets as deposits with commercial banks.
Chief executive Paolo Ardoino has said that clause would replace relatively safe instruments with concentrated bank exposure and leave a vast user base worse off.
European deposit insurance generally stops at €100,000 per depositor per bank.
Against reserves measured in the tens or hundreds of billions of dollars, that ceiling provides almost no real protection.
Ardoino has argued that forcing a majority of reserves into uninsured commercial deposits would put roughly 400 million USDT holders at risk if a bank failed or if large redemptions arrived at once.
Tether has long reported that most of its reserves sit in short-dated U.S. Treasuries, often cited at around 80 percent.
Meeting MiCA would have meant converting a large share of those government securities into cash at European credit institutions.
Company leadership has described that swap as a step down in both credit quality and liquidity: Treasuries can be sold or used in repo markets quickly, while large uninsured deposits cannot be withdrawn at scale without stressing the banks that hold them.
Because Tether never applied for electronic-money-token authorization, licensed European venues could not keep USDT on their books after the transition period ended.
On 1 July 2026 the token was removed from regulated EU exchange order books.
Personal custody remains legal; what ended was listing and trading on MiCA-licensed platforms.
Ardoino has not closed the door entirely.
He has said that if the rules become safer for consumers and issuers, the company might look at Europe again.
That remark has gained new relevance as EU central banks have recommended dropping the fixed 30 percent and 60 percent deposit floors in favor of liquidity tests based on assets that can mature or be realized within one to five working days.
Those recommendations have not yet become law.
The standoff shows two different ideas of safety.
Officials want reserves that look like bank money. A large issuer prefers instruments it views as more liquid and less tied to commercial-bank balance sheets. Until the rule changes, USDT is likely to stay off licensed European venues.