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Kast Business combines payments with stablecoin balances
The new KAST Business platform gives companies a single service for receiving money, holding stablecoins, issuing cards, and paying workers or vendors across different markets. Businesses can receive fiat through virtual accounts supplied by regulated partners. Customers may also fund their accounts with supported stablecoins and other crypto assets, although Kast has not published a complete list of eligible tokens for every jurisdiction.
After funds arrive, companies can issue virtual cards for employees, vendors, or subscriptions. The platform also supports local payouts in more than 20 currencies, giving internationally distributed teams an alternative to managing separate bank accounts and payment services. Kast said the service reaches more than 170 countries, but access to individual products depends on the customer's location and the rules applied by its financial partners.
Card cashback and yield features
Business owners can create virtual cards and assign them to individual team members or recurring expenses. Kast's business page says companies can issue hundreds of virtual cards and set separate spending limits. Card spending can generate cashback of up to 3%, according to Kast, though the actual rate depends on the customer's membership level, transaction type, monthly spending limit, and location. Standard cardholders receive a lower rate than customers on paid tiers.
Kast advertises returns of up to 8% APY on idle business balances, powered by short-term U.S. Treasuries and stablecoin yield. However, the maximum rate should not be treated as a fixed return available to every customer. Kast has not detailed how much of the return comes from Treasury assets and how much comes from other stablecoin strategies. The company also has not provided a full public breakdown of the underlying products, counterparties, fees, or conditions required to receive the highest rate.
Fintech structure uses licensed partners
Kast identifies itself as a financial technology company, not a bank. Regulated account and payment services are supplied through licensed partner institutions. Customers would need to review the terms for the specific fiat account, stablecoin balance, and yield product they use. Kast's description does not state that every balance qualifies as an insured bank deposit, while digital assets and investment products generally do not receive the same protections as deposits held directly at an insured bank.
A similar model has begun appearing among other payment companies. In July, Ramp launched accounts that let companies hold USDC and USDT, send stablecoins at any time, and settle payments in more than 40 local currencies across over 140 countries. The structure gives businesses a way to accept traditional bank payments while using digital assets for treasury operations or settlement.
U.S. regulatory scrutiny and growth targets
For U.S. businesses, the yield feature arrives while regulators and lawmakers continue to examine how stablecoin rewards should be treated. The GENIUS Act created a federal framework for payment stablecoins and prevents payment stablecoin issuers from paying interest or yield solely for holding their tokens. The restriction does not automatically settle how a separate fintech platform may offer rewards through an account, Treasury product, or another investment arrangement.
Kast launched the business product after closing an $80 million Series A funding round in March at a reported valuation of $600 million. The company said it would direct the capital toward product development, licensing, and expansion in North America, Latin America, and the Middle East. Kast claims more than 1 million users and plans to bring between 1,000 and 5,000 active companies onto KAST Business by the end of 2026.