Tether Freezes $4.2 Billion in USDt Over Three Years as Global Crypto Crackdown Intensifies

• Tether froze 4.2 billion USDt in three years as regulators increased scrutiny on crypto crime.

• USDt supply fell by $2.7 billion in two months marking the sharpest drop since 2022.

• Authorities relied on Tether to blacklist wallets and restrict funds linked to fraud.

Stablecoin issuer Tether has frozen about $4.2 billion in USDt over the past three years. The blocked tokens were linked to suspected criminal activity. Most of the restrictions occurred after 2023. Regulators and law enforcement agencies increased scrutiny during that period.

According to Reuters, Tether has frozen approximately $4.2 billion worth of USDT linked to illicit activity, with about $3.5 billion of that amount frozen since 2023. This week, the company also assisted the U.S. Department of Justice in freezing nearly $61 million tied to…

— Wu Blockchain (@WuBlockchain) February 28, 2026

Tether issued the data in comments reported on Friday. Authorities intensified investigations into crypto fraud and sanctions evasion. As a result, Tether expanded its compliance coordination. The company restricted wallets connected to ongoing probes.

$4.2 Billion in USDt Frozen Since 2023

USDt remains the largest stablecoin in circulation. It currently has more than $180 billion outstanding. Three years ago, supply stood near $70 billion. Despite growth, enforcement actions have also increased.

Tether can freeze tokens directly on the blockchain. It blacklists wallet addresses upon official requests. This mechanism allows authorities to restrict suspicious funds quickly. Consequently, regulators rely on issuer cooperation during investigations.

Recent cases highlight that trend. Tether assisted the US Department of Justice in seizing nearly $61 million in USDt. The funds were tied to pig-butchering scams. These schemes involve long-term deception before victims transfer money.

Earlier this month, Turkish authorities requested further action. Tether froze about $544 million in cryptocurrency. The funds were linked to alleged illegal online betting and money laundering. Therefore, cross-border coordination has become more frequent.

Enforcement Efforts Expand Across Stablecoins

Blockchain analytics firm Elliptic tracked broader blacklist activity. By late 2025, Tether and Circle had blacklisted around 5,700 wallets. Those wallets held about $2.5 billion combined. Roughly three-quarters of the addresses contained USDt at the time of freezing.

These figures show how stablecoin issuers now play a direct enforcement role. Authorities increasingly depend on issuer controls. Moreover, issuers monitor suspicious flows in real time. This approach blends blockchain transparency with centralized oversight.

USDt Supply Records Sharp Monthly Decline

At the same time, USDt supply has contracted. Circulating supply fell about $1.5 billion in February. January had already recorded a $1.2 billion decline. Together, these drops mark the steepest contraction in three years.

The last comparable decline followed the FTX collapse in late 2022. Analysts link the current pullback to tighter liquidity conditions. However, Tether attributed the changes to short-term distribution shifts. The company noted that USDC also recorded multibillion-dollar reductions during the same period.

Market data shows USDt market capitalization has dipped over the past month. Nevertheless, USDt remains dominant within the stablecoin sector. Enforcement actions and supply shifts now move alongside rapid market growth.