For half a century the door into dollar settlement opened only from the inside: a direct Fed account belonged to banks, and everyone else bought access from banks. On 20 May 2026 the Federal Reserve proposed a second door for the first time — the payment account, a trimmed-down master account for uninsured institutions. Here is the anatomy of the proposal, who gets in, and what it breaks — and does not break — in sponsor-bank economics.
The door to the dollar: why a master account matters
A master account is a financial institution's account at a Federal Reserve Bank. It is the terminal point of the dollar system: the balance on it is central bank money, and the account is the direct entrance to Fedwire, FedNow and the Fed's other services. Whoever lacks one settles through someone else's chain — fintech → BaaS platform → sponsor bank → Fed, or respondent bank → correspondent → Fed. Every link charges a fee, adds credit risk and keeps the right to say no at any moment.
For insured banks the account is routine. For uninsured special charters — Wyoming SPDIs, trust banks, narrow settlement institutions — it stayed close to unattainable: the Fed cited AML risk, monetary arbitrage and a "back door" into the payment system. The monopoly on entry thus became an asset of sponsor banks and a systemic vulnerability of everyone building on rented access — the through-line of the regulatory perimeter.
The 2022 guidelines: three tiers and a door that stayed shut
On 15 August 2022 the Fed finalised its Account Access Guidelines, sorting applicants into three tiers — federally insured institutions (Tier 1), uninsured ones under federal prudential supervision (Tier 2), and uninsured ones without it (Tier 3), promised the strictest scrutiny. Transparency improved; accounts did not follow.
Two stories set the tone. TNB USA, a Connecticut "narrow bank" with no crypto at all — a parking lot for institutional money at the Fed's rate: a 2017 application, a lost lawsuit against the New York Fed and a formal denial in 2024, after seven years of waiting. Custodia, a Wyoming SPDI, was denied by the Kansas City Fed in January 2023 and went to the courts — all the way up. Exceptions are rare and clipped: on 28 January 2026 Kraken Financial was approved for a limited-purpose master account with an initial one-year term — and as of August 2026 the account is still not operational.
The 20 May 2026 NPRM: anatomy of a payment account
Governor Christopher Waller floated the "skinny" account idea publicly in the autumn of 2025, and on 20 May 2026 the Board put a 96-page proposal out for comment — docket OP-1878, a new account type called the payment account. Michael Barr voted against, citing money-laundering risk. Federal Register publication came on 26 May; the comment window closed on 27 July 2026.
| Parameter | The Fed's proposal |
|---|---|
| Balance | a $1bn ceiling on the end-of-day balance; the actual limit is calibrated by the Reserve Bank to the institution's payment activity |
| Interest on balances | zero — the Reg D amendment carves payment account balances out of interest on reserves |
| Overdraft | impossible: a transaction above the balance is rejected automatically; the account runs on full pre-funding |
| Services | Fedwire Funds, FedNow, National Settlement Service, Fedwire Securities (free-of-payment transfers only) |
| Out of scope | FedACH, cash and check services, the discount window (the Reg A amendment), intraday credit, acting as a correspondent |
| Timelines | payment account requests targeted at 90 days; Tier 1 master accounts at 45 |
The subtlety the press keeps losing: FedACH is not in the proposal, so the familiar shorthand "direct access to Fedwire/ACH" is inaccurate — the ACH rail stays with banks. That is exactly where the comment battle runs: the crypto camp asks to add ACH and raise the cap, while ABA and CBA together with a BPI-led coalition push for tighter guardrails. Until finalisation the Fed recommended that Reserve Banks pause ordinary Tier 3 requests — through 31 December 2026.
Who is inside the perimeter — and who stays outside
The payment account does not widen the circle of the legally eligible: it is a lighter account form for those already eligible under the Federal Reserve Act. Waller put it bluntly on 13 November 2025: you need a bank charter, and a nonbank "doesn't have the right to ask at all". Hence the charter rush: uninsured OCC national trust banks — on 12 December 2025 the regulator approved five in a single day, including Ripple, Circle, BitGo, Fidelity and Paxos — state trust companies, Wyoming SPDIs. Insured ILCs already qualify under Tier 1.
A caveat for issuers: PPSI status under the GENIUS Act confers no account rights by itself — a nonbank issuer still needs a depository charter. And even for deposit-less trusts the question of whether such an institution is a depository institution is not legally settled: that is precisely the frame Custodia is testing.
Custodia at SCOTUS: the fate of "shall"
The Monetary Control Act of 1980 says Fed services "shall be available" to depository institutions. The whole dispute is whether that wording creates a right to an account. On 31 October 2025 a Tenth Circuit panel said no, recognising Reserve Bank discretion; on 13 March 2026 rehearing en banc was denied 7–3. On 10 July 2026 Custodia filed a cert petition — docket 26-62; the Fed's response deadline was extended to 11 September, and on 12 August the Blockchain Association backed the petition as amicus.
The fork is simple. A cert denial locks in discretion — payment accounts remain the only, administrative door, which the Fed may narrow or widen at will. A grant and a Custodia win turn the account into a right of every eligible institution — and the cautious "skinny" design becomes the floor of access rather than its ceiling.
What this breaks in BaaS — and what it does not replace
What breaks is the monopoly on the settlement rail. A settlement fintech or stablecoin issuer with the right charter no longer needs a sponsor to hold reserves in central bank money and send Fedwire/FedNow: the single point of failure familiar from intermediary collapses disappears. Infrastructure projects have been waiting for exactly this — Fnality's dollar system is stated to depend on the Fed's decision.
Everything else does not break. A payment account brings no insured deposits, no ACH, no cards, no credit. Recurring debits and payroll live on ACH — with banks; card interchange economics — with banks; FDIC-insured customer deposits — with banks. The sponsor loses the rent for the door itself but keeps the deposit-and-card floor. The likely outcome is repricing: the settlement leg of sponsorship gets cheaper and commoditised, while value shifts to deposits, ACH origination, cards and credit.
How to read the provider shelf after payment accounts
The question to ask a neobank once the rule is final: where do the reserves sit and which rail carries the payment. A provider with a payment account holds funds at the central bank — the commercial correspondent's credit risk drops out of the chain. The flip side: there is no FDIC insurance on such an account, it is a settlement instrument rather than a savings one, and at a zero rate the provider lives on fees alone — that is where the model's resilience gets tested. If the product promises ACH debits, cards or yield on balances, a partner bank still stands behind them, and its name is worth knowing before onboarding.
The charter-to-account route and zero-rate economics
The route: obtain an eligible charter (an OCC national trust at the current pace — months; an SPDI or state trust — adjusted for Tier 3), take a routing number, file with the Reserve Bank of your district against the 90-day benchmark — and operationalise the account, which the market systematically underestimates: Kraken, approved in January, had not launched by August. Budget months for Fedwire/FedNow certification, testing and the compliance stack.
The economics are harsh by design. The zero rate deliberately closes the TNB model — parking institutional money at the Fed's rate: revenue has to come from payment fees and product, not float. The $1bn ceiling constrains reserves on a single account — the key question for large issuers and one of the loudest in the comment file. And keep a legal-and-regulatory reserve: the Custodia case shows the price when the door jams.
Calendar to 2028
- 11 September 2026 — the Fed's response deadline at the Supreme Court in case 26-62; the autumn conferences will decide cert, with a decision expected by June 2027 if granted.
- Q4 2026 — Waller's target: payment accounts, in his words, "up and operationalized".
- 31 December 2026 — the recommended pause on Tier 3 requests expires.
- 18 January 2027 — the GENIUS Act's effective date; 18 July 2028 — the intermediation ban for non-permitted stablecoins: peak demand for settlement accounts lands in that window.
Q/A
How does a payment account differ from a full master account
A full master account has no regulatory balance ceiling, earns interest on reserves and opens the full service set — including FedACH, cash and checks. A payment account is the settlement slice only: Fedwire, FedNow and NSS under a $1bn ceiling, zero interest and full pre-funding. The trade-off is a predictable procedure with a 90-day benchmark instead of years of waiting.
Who will be able to open a payment account
Only institutions legally eligible for Fed accounts — the proposal does not widen that circle. In practice that means uninsured trusts and special charters such as Wyoming SPDIs; a nonbank fintech or an issuer without a depository charter does not qualify, as Waller confirmed directly. For deposit-less trusts, eligibility remains legally contested.
Will ACH make it into the final version
FedACH is not in the 20 May 2026 proposal: a batch rail with debits creates return and credit risks incompatible with full pre-funding. Crypto and fintech associations asked in comments to add ACH and raise the cap; banking trades pushed the other way, for tighter guardrails. Only the final rule will answer.
What happens to sponsor banks
They remain the mandatory link for everything a payment account does not provide: insured deposits, ACH origination, card programmes, credit. What goes away is the rent for the door into dollar settlement itself — that leg of sponsorship gets cheaper, and competition shifts to the deposit-and-card floor and the quality of compliance.