Under US rules, a stablecoin redemption now counts as done when the issuer sends the dollars, not when it burns the token. That is one sentence in the 721-page final rule the Office of the Comptroller of the Currency released on 21 October, and for anyone building on USDC or PYUSD it matters more than the yield row that has dominated the coverage.
The rule creates a new 12 CFR Part 15, "Payment Stablecoins", and it appears in the Federal Register today at 91 FR 67000. It takes effect on 18 January 2027, the date the GENIUS Act itself switches on. It is the first final rule from a primary federal stablecoin regulator. The Federal Reserve's two proposals are open for comment until 30 November, and the FDIC has not finalised anything yet.
What Does the OCC GENIUS Act Final Rule Cover?
Part 15 covers national banks, federal savings associations, federal branches, foreign issuers, nonbanks seeking Federal qualified issuer approval, and state issuers under OCC enforcement. The OCC's impact analysis counts 39 entities, including at least 12 it does not supervise today, and puts baseline 2027 issuance at $272.3bn. For scale, USD stablecoins stand at roughly $303bn this week on DefiLlama, with USDT at $182.5bn and USDC at about $72bn.
Anti-money laundering and sanctions rules are not in it. They sit in separate proposals from the OCC and from FinCEN and OFAC, so the wallet-screening obligations developers care about most are still not final.
GENIUS Act Reserve Requirements: 5% Cash and a 40% Cap
Eligible reserves are cash, Fed balances, demand deposits, Treasuries with 93 days or less to run, overnight repo against them, government money market funds, and tokenised versions of these. The OCC drew about 328 comments on its February proposal, and the changes since are where the policy shows.
| Requirement | Proposal (Feb 2026) | Final rule (Oct 2026) |
|---|---|---|
| On-demand deposits or Fed balances | 10% minimum | 5% minimum |
| Single counterparty | 40% cap | 40% cap, excluding US government, custodians and centrally cleared repo |
| Liquidity safe harbour | 30% weekly liquidity, 20-day maturity cap | Dropped |
| Withdrawing surplus reserves | Monthly | Any time, after due diligence |
| Capital | $5m floor, bank-style CET1/AT1 tiers | $5m floor, GAAP equity less intangibles |
| Operational backstop | 12 months of expenses | 12 months of expenses, up to half in subordinated debt |
| Redemptions above 10% in 24 hours | Automatic 7-day extension | Notify OCC within 24 hours, may request extension |
Reserve composition must be published by noon on the last day of each month, as at noon on the last day of the previous month, with average tenor and custody location, an accountant's examination report and a CEO and CFO certification.
The shortfall rule has a detail engineers should read twice. Fall below 1:1 at any moment and issuance stops immediately, with one exception: coins can still move "from one distributed ledger to another" provided net outstanding issuance does not rise. That carve-out exists because burn-and-mint bridges such as Circle's CCTP mint on the destination chain. Without it, a reserve shortfall would also halt every cross-chain transfer. After 15 consecutive business days short, the issuer must start liquidating.
When Is a Stablecoin Redemption Complete Under the GENIUS Act?
Section 15.12 requires redemption within two business days. The clock starts when the issuer has received the order and the customer is onboarded, provided onboarding is not designed to drag. It stops when the issuer has "fully processed and initiated the outgoing transfer of monetary value". Commenters asked whether completion meant burn initiation, block confirmation or ledger finality. The OCC picked the fiat leg, on the grounds that sending money is within the issuer's control and the customer receiving it is not.
Other mechanics from the same section:
- The issuer must redeem any amount from one coin upwards, subject to screening.
- Fees must be disclosed, and any change needs seven calendar days' notice.
- Only the OCC can limit redemptions. The proposal's automatic seven-day extension during a surge was removed after commenters warned it would invite a run.
Does the GENIUS Act Require a Freeze Function?
The statute says an issuer must have "the technological capability to comply" with any lawful order. The final rule adds nothing on top and never uses the words "freeze" or "seize". One commenter asked for a mandated wallet credential state machine with forced freezing; the OCC declined, citing technology neutrality.
What Part 15 does require, in §15.13(b), is an IT programme that checks systems "including smart contracts" work as intended, independent testing, private key management with backup and recovery, and breach notification that covers private keys. Two smaller points matter for builders:
- The weekly confidential report's draft form asks for the top 100 wallet addresses by holding. Addresses, not identities. An issuer live on many chains needs an indexer that ranks holders across all of them every week.
- Issuers may hold other digital assets as principal only to pay network or customer fees, or for testing. A gas treasury in ETH or SOL is fine; a trading book is not.
blacklist(address) makes transfers revert with Blacklistable: account is blacklisted. USDT has addBlackList and destroyBlackFunds. Paxos tokens use freeze and wipeFrozenAddress. The OCC has effectively blessed that pattern by not replacing it.
The consequence people miss is pooling. A freeze hits an address, and an escrow, vault or payment-splitter contract is one address. One sanctioned depositor can lock every other user's balance in the same contract, and nothing in Part 15 obliges the issuer to unpick that.
OCC vs MiCA vs FCA: Stablecoin Rules Compared in 2026
| US: OCC Part 15 | EU: MiCA e-money tokens | UK: FCA PS26/10 | |
|---|---|---|---|
| In force | 18 Jan 2027 | 30 Jun 2024 | 25 Oct 2027 |
| Redemption deadline | 2 business days | At any time, at par | T+1 |
| Clock starts | Order received, customer onboarded | On request | Coin received in issuer's wallet |
| Redemption fees | Allowed if disclosed | Not allowed | Operational cost only |
| Bank deposits | 5% on demand | 30% (60% if significant) | 5% on demand, plus a buffer sized to the largest daily redemption in 180 days |
| Yield | Issuer ban; third-party rewards judged case by case | Ban extends to CASPs and time-based benefits | No passing on backing-asset interest |
The trade-off is plain. The OCC lets issuers hold far more Treasuries and far fewer bank deposits than MiCA, which means more interest income and less exposure to a bank failure like the one that briefly broke USDC's peg in March 2023. In exchange, US holders get the slowest redemption of the three regimes and the loosest rules on rewards.
Can Stablecoin Issuers Still Pay Yield After the OCC Rule?
Issuers cannot. Section 15.10(c)(4) bans interest paid "solely in connection with the holding, use, or retention" of a coin. The proposal went further, presuming that affiliate and related third-party arrangements were evasion. The final rule drops that presumption for case-by-case review, with no de minimis threshold and no grandfathering. The American Bankers Association said the OCC had moved away from what Congress intended. Circle welcomed the rule.
My view: exchange rewards on USDC survive into 2027, but they change shape. The whole test hangs on "solely", so expect programmes to tie rewards to an action such as payment volume or liquidity provision rather than an idle balance. My prediction is that the first OCC interpretive letter on yield concerns a wallet or exchange paying a flat rate on idle balances, not a bank. The real fight moves back to Congress, where the CLARITY Act stalled after a failed Senate procedural vote last month.What This Means for Developers Integrating US Stablecoins
1. Do not treat 18 January 2027 as a cliff. Issuers with a substantially complete application pending can get waivers of up to 12 months, and the OCC says those already operating in the US are generally expected to get one. The application window itself is still waiting on OMB approval. Track each issuer's licence status as a dependency.
2. Make redemption orders token-first. Accept an order only once the coins have landed, store both timestamps, and alert at one business day. That copies the UK design and keeps chain latency out of the US clock.
3. Model freezes per address. Test what your contracts do when a stablecoin transfer reverts, and keep per-user accounting that lets you route around one frozen counterparty. The same applies to the deposit-address matching many payment flows rely on.
4. Read the monthly reserve disclosure as data. It arrives at a predictable time with tenor and custody location. Alert if on-demand deposits drift towards the 5% floor.
5. If you pay rewards, pay for actions. A rate on an idle balance is the structure most likely to be tested first.
The deposit-versus-stablecoin line from the Roughrider piece still holds; Part 15 just gives the stablecoin side a rulebook with numbers in it. More from Tom Wang on payment infrastructure.