Blab Crypto
Shift4 Payments Expands Pay with Crypto to Include Tethers USDT via Lydian Partnership
Shift4 Payments has just opened a new lane for merchants to tap the growing stable‑coin market. The publicly traded payment‑processing firm, listed on the NYSE under FOUR, announced a partnership with Lydian that adds Tether’s USDT to its Pay with Crypto product.
Under the new arrangement, merchants across the United States—except those in New York—can now accept USDT directly from customers’ crypto wallets. The transaction is automatically converted to U.S. dollars at the point of sale, meaning retailers do not need to install new hardware, learn blockchain mechanics, or hold any cryptocurrency on their balance sheets.
Pay with Crypto first launched in October 2024, initially supporting Bitcoin, Ethereum and a handful of other tokens. In December 2025, Shift4 rolled out a global stable‑coin settlement platform that enabled merchants to accept a range of stablecoins, including USDC, USDT, DAI, PYUSD and EURC. The Lydian partnership builds on that foundation by adding USDT to the consumer‑facing payment flow, giving merchants a direct route to the world’s largest stable‑coin while keeping the transaction in familiar fiat currency.
"The addition enhances the company’s crypto offerings without introducing additional complexity or risk for merchants," said Shift4 CEO Taylor Lauber. The company’s approach differs from other industry moves that create separate crypto products. Instead, Shift4 embeds crypto acceptance into its existing payment infrastructure, allowing merchants to process crypto payments with the same ease and speed as traditional credit cards.
The automatic fiat conversion model raises questions about stable‑coin demand dynamics. Because merchants convert USDT to dollars immediately, the tokens are effectively a pass‑through rather than a held asset. Nevertheless, the volume of transactions still requires USDT liquidity, and a broader adoption of crypto payments could increase overall circulation of the stable‑coin.
Regulatory uncertainty around stable‑coins in the United States remains unresolved. Shift4’s exclusion of New York merchants reflects the patchwork compliance landscape that still exists, as New York’s BitLicense framework imposes stricter requirements on crypto‑related financial services. Any federal stable‑coin legislation could either accelerate or complicate the type of integrations Shift4 is building, depending on the regulatory requirements that emerge.
The move comes as the traditional payments industry continues to cautiously explore crypto. PayPal has launched its own stable‑coin, PYUSD, and Visa and Mastercard have experimented with blockchain settlement. Shift4’s strategy targets the merchant side of the equation, offering a seamless way for retailers, restaurants, and other businesses to accept crypto without adding new operational burdens.
In short, the Shift4‑Lydian partnership expands the Pay with Crypto platform to include USDT, enabling merchants nationwide—except those in New York—to accept the stable‑coin and receive fiat instantly. The integration builds on Shift4’s existing stable‑coin settlement capabilities and aligns with broader industry trends toward embedding crypto payments into conventional merchant workflows. Regulatory developments and federal legislation will shape the future of such integrations, but for now the partnership provides a practical, low‑complexity option for merchants looking to tap the growing market for stable‑coin payments.
Under the new arrangement, merchants across the United States—except those in New York—can now accept USDT directly from customers’ crypto wallets. The transaction is automatically converted to U.S. dollars at the point of sale, meaning retailers do not need to install new hardware, learn blockchain mechanics, or hold any cryptocurrency on their balance sheets.
Pay with Crypto first launched in October 2024, initially supporting Bitcoin, Ethereum and a handful of other tokens. In December 2025, Shift4 rolled out a global stable‑coin settlement platform that enabled merchants to accept a range of stablecoins, including USDC, USDT, DAI, PYUSD and EURC. The Lydian partnership builds on that foundation by adding USDT to the consumer‑facing payment flow, giving merchants a direct route to the world’s largest stable‑coin while keeping the transaction in familiar fiat currency.
"The addition enhances the company’s crypto offerings without introducing additional complexity or risk for merchants," said Shift4 CEO Taylor Lauber. The company’s approach differs from other industry moves that create separate crypto products. Instead, Shift4 embeds crypto acceptance into its existing payment infrastructure, allowing merchants to process crypto payments with the same ease and speed as traditional credit cards.
The automatic fiat conversion model raises questions about stable‑coin demand dynamics. Because merchants convert USDT to dollars immediately, the tokens are effectively a pass‑through rather than a held asset. Nevertheless, the volume of transactions still requires USDT liquidity, and a broader adoption of crypto payments could increase overall circulation of the stable‑coin.
Regulatory uncertainty around stable‑coins in the United States remains unresolved. Shift4’s exclusion of New York merchants reflects the patchwork compliance landscape that still exists, as New York’s BitLicense framework imposes stricter requirements on crypto‑related financial services. Any federal stable‑coin legislation could either accelerate or complicate the type of integrations Shift4 is building, depending on the regulatory requirements that emerge.
The move comes as the traditional payments industry continues to cautiously explore crypto. PayPal has launched its own stable‑coin, PYUSD, and Visa and Mastercard have experimented with blockchain settlement. Shift4’s strategy targets the merchant side of the equation, offering a seamless way for retailers, restaurants, and other businesses to accept crypto without adding new operational burdens.
In short, the Shift4‑Lydian partnership expands the Pay with Crypto platform to include USDT, enabling merchants nationwide—except those in New York—to accept the stable‑coin and receive fiat instantly. The integration builds on Shift4’s existing stable‑coin settlement capabilities and aligns with broader industry trends toward embedding crypto payments into conventional merchant workflows. Regulatory developments and federal legislation will shape the future of such integrations, but for now the partnership provides a practical, low‑complexity option for merchants looking to tap the growing market for stable‑coin payments.
