Tether announced on October 21, 2025, that its USDT stablecoin has reached 500 million users for the first time. CEO Paolo Ardoino called this milestone “likely the biggest financial inclusion achievement in history” in a post on X. The announcement comes as USDT’s total supply approaches $182 billion, making it by far the dominant player in the stablecoin market.

The timing of this announcement is significant. On the same day, Tether revealed a strategic investment in Kotani Pay, a Kenya-based fintech company that connects cryptocurrency users to local payment systems across Africa. This move shows where Tether sees its future growth: emerging markets where traditional banking remains limited.