Tether to bring $184 billion USDT stablecoin back to Bitcoin in October 2026
Tether is bringing its $184 billion USDT stablecoin back to the Bitcoin network in October 2026, marking a return 12 years after its initial launch on the Omni protocol in 2014. The integration connects the oldest blockchain directly with the largest stablecoin, though the technological design leaves Bitcoin’s supply and miner fee structures largely unchanged.
The stablecoin previously shifted away from Bitcoin to operate on faster networks like Tron and Ethereum. Tether CEO Paolo Ardoino described the upcoming deployment with the phrase, It’s coming home.
Despite the sentiment, the technical framework behind the relaunch separates transaction records from the main blockchain, altering the economic calculus for network participants.
Utexo Issues USDT Using the RGB Protocol
Utexo, a company backed by Tether with a license to distribute USDT under Tether’s brand, will issue the stablecoin for exchanges, wallets, and payment providers. The system relies on the RGB protocol to keep transaction details private off the public ledger. This setup allows direct exchanges between BTC and USDT alongside Bitcoin-backed loans without creating additional tokens.
Utexo also plans to integrate the stablecoin into the Lightning Network, Bitcoin’s faster payment layer. Bitcoin holders will see no alteration to the network’s 21 million coin limit, as a USDT balance on Bitcoin represents a dollar claim on Tether rather than exposure to BTC price movements.
Off-Chain Design Reduces Fee Revenue for Miners
Miners depend on transaction fees alongside block rewards to secure the blockchain, particularly as reward halving schedules reduce newly minted coins over time. However, the RGB protocol’s off-chain design results in significantly lower fee revenue from USDT transfers compared to full on-chain transactions.
Tron and Ethereum currently carry most USDT supply due to faster and cheaper transfers. Tether has not yet disclosed which specific exchanges or payment companies will support the Bitcoin-based version of the token. Bitcoin’s base block time of roughly ten minutes creates inherent scaling hurdles that the Lightning Network aims to mitigate.
El Salvador’s Alternative Stablecoin Path
Adoption metrics highlight the ongoing friction for Bitcoin as a daily payment instrument. Although El Salvador adopted Bitcoin as legal tender in 2021, a University of Central America survey found that 92% of Salvadorans reported not using it in 2024. The government announced plans on September 29 for a stablecoin platform named Sivar, choosing to build it on Coinbase’s Base network rather than the Bitcoin blockchain.