Stablecoin Treasury 2026: B2B Payments Reach $226B

Corporate treasuries adopted stablecoins at scale in 2026. B2B stablecoin payments grew 733% year-on-year to an estimated $226 billion annually, and monthly stablecoin transaction volume reached a record $1.79 trillion in June 2026. Stablecoin market capitalization stood at $312.3 billion in July 2026.

Treasury teams moved through three phases between 2024 and 2026. In 2024 many firms held USDC as an idle liquidity position. In 2025 treasuries allocated funds into tokenized money market wrappers tied to short-term Treasuries. By 2026 companies were running live intercompany settlement workflows, multi-corridor B2B payment operations and programmable treasury processes integrated with ERP systems. Stablecoin velocity rose from about 2.6x in January 2024 to nearly 6x by early 2026.

Supply composition in July 2026 showed USDT at about $184 billion, roughly 59.5% of the market, and USDC at about $73 billion, roughly 23.6%. Smaller stablecoins made up the remainder. The tokenized Treasury segment expanded to $7 billion in June 2026, up 600% from $1 billion in January 2025; BlackRock’s BUIDL held more than $2.5 billion of that total.

Real-world corporate use cases increased. Hyundai Card and Hyundai Motor completed a $20,000 USDT intercompany settlement from the U.S. to Mexico over Avalanche that averaged seven minutes, versus three to four hours on traditional interbank rails. A Hyundai Card official confirmed the proof of concept “demonstrates that we have completed preparations at a level that could support real-world deployment.” A follow-up European test in late July 2026 included Circle and Visa and focused on local-currency settlement and potential foreign-exchange cost reductions.

Payroll and supplier payouts also scaled. Deel pays more than 10,000 contractors across 100-plus markets in stablecoins using BVNK infrastructure and runs full-time payroll on the same rails. Worldpay processes stablecoin payouts across more than 180 markets using BVNK for supplier and merchant settlement. Mural Pay provides enterprise accounts-payable automation to suppliers in more than 90 countries using USDC and USDT.

Yield options for corporate treasuries shifted after a statutory ban on permitted payment stablecoin issuers paying direct interest to holders. Firms route balances into third-party tokenized funds, DeFi lending markets or yield-bearing stablecoins. Tokenized Treasury products offering Treasury-backed yields of about 4%–5% APY include BlackRock BUIDL, Fidelity FDRXX and State Street SSCXX; Ondo USDY was available with roughly 4.65% APY and lower minimums. DeFi lending protocols such as Aave, Morpho and Kamino offered variable rates typically between 5% and 13% depending on borrow demand. Yield-bearing stablecoins that distribute reserve income directly reported yields in the 4%–7% range.

Regulatory and operational requirements tightened as adoption grew. Reserve composition standards require short-dated Treasuries, demand deposits and specified repo agreements for permitted payment stablecoin backing. A five-agency customer identification rule applying to primary-market minting and redemption closes August 21, 2026. European MiCA enforcement from July 1, 2026 requires use of authorized stablecoins for regulated exchange access; USDT was excluded from MiCA-licensed EU exchanges while USDC, EURC and USDG retained authorization.

Risk considerations included smart contract vulnerabilities, reserve credit exposure, counterparty concentration and foreign-exchange conversion costs for local-currency corridors. DeFi exploits resulted in $2.8 billion in losses in 2025, and a May 2026 incident involving Aave’s USDG highlighted exposure to external contract logic. USDT and USDC together represented about 83% of the market, raising concentration concerns. FX conversion costs can reduce net savings on smaller, high-frequency local transfers.

ERP and treasury-platform integrations advanced alongside payments activity. Kyriba implemented a Circle–USDC integration in April 2026 to surface real-time stablecoin balances within treasury systems. GTreasury, following acquisition by Ripple, connected corporate treasury infrastructure to RLUSD rails for institutional cross-border flows.

Corporate treasury teams continued to evaluate which corridors, ticket sizes, yield strategies and compliance frameworks meet operational and regulatory requirements before moving pilots into routine production use.