US stablecoin issuers have entered a five-month preparation window before the GENIUS Act’s expected Jan. 18, 2027, effective date. From that date, issuers will generally need a federal or state license, with regulators expected to assess whether compliance, risk, technology, reserves, banking relationships and redemption systems operate together in daily conditions. Patrick Gerhart, president of Telcoin Digital Asset Bank, said building that operating infrastructure will be the hardest licensing challenge. The Treasury proposed definitions on Aug. 17 covering when a company issues a payment stablecoin in the United States and when a digital asset platform offers one to a US customer. Separate restrictions are expected to prevent platforms from offering unapproved payment stablecoins to US customers from July 18, 2028. Treasury is considering customer-identification, account, geographic, device, network and transaction-monitoring checks that could affect offshore issuers and platforms. The GENIUS Act, signed into law by President Donald Trump on July 18, 2025, establishes separate regulatory paths for federally supervised issuers and qualifying state-regulated companies. Its effective date is technically the earlier of Jan. 18, 2027, or 120 days after responsible federal agencies complete final regulations, but regulators missed the July 18, 2026, statutory deadline. Federal proposals cover reserves, redemptions, custody, liquidity, capital, audits, risk management, reporting, operational backstops, customer identification, due diligence, suspicious-activity reporting and sanctions compliance. Telcoin’s experience obtaining a final Nebraska charter in November 2025 illustrates the preparation involved. The company is building services around eUSD, a bank-issued stablecoin intended to connect conventional dollar accounts with public blockchain networks. Issuers with no more than $10 billion in consolidated outstanding stablecoins may choose state supervision if Treasury finds the state framework substantially similar to federal rules, while larger companies generally face federal supervision. The framework also requires one-to-one reserve backing, monthly attested disclosures and a ban on paying yield directly to stablecoin holders. Gerhart said prepared issuers may have an advantage, but regulatory approval alone will not determine success; interoperability and practical customer use will also matter.