ACH vs Fedwire vs FedNow: which US payment rail to use
Use ACH for routine payments that can take a day, Fedwire for large payments that must be final the same business day, and FedNow or RTP for instant payments at any hour. The payee's bank has to be connected to the rail you choose.
By Pavel Skalin, Founder & CEO, Align · Reviewed by the Align compliance team
Updated · 6 min read
The short answer
Use ACH for routine payments that can take a day: payroll, supplier runs and collections. Use Fedwire for large or urgent payments that must be final the same business day. Use FedNow, or The Clearing House's RTP network, for payments that must arrive in seconds at any hour, if both banks are connected.
Side by side
| ACH | Fedwire | FedNow | |
|---|---|---|---|
| Run by | The Federal Reserve and The Clearing House, under Nacha's rules | The Federal Reserve | The Federal Reserve |
| Hours | Business days | 9:00 p.m. ET the previous evening to 7:00 p.m. ET, business days | 24 hours a day, every day |
| Settlement | In batches; Same Day ACH at 1:00, 5:00 and 6:00 p.m. ET, other entries at 8:30 a.m. ET on the settlement day | Each payment individually, when processed | Each payment individually, in seconds |
| Limit per payment | Same Day ACH: $1 million, rising to $10 million on 17 September 2027 | Average transfer in 2025: $5.28 million | $10 million since November 2025; banks can set lower limits |
| Finality | Payments can be returned; erroneous entries reversed within 5 banking days | Final and irrevocable | Final and irrevocable |
| Who can receive | Any US financial institution can use FedACH | About 9,000 institutions are eligible, about half connected directly | About 1,900 participants, October 2026 |
| Typical use | Payroll, supplier batches, direct debits | Large, time-critical payments | Urgent payments, any hour |
ACH: batched, and reversible in narrow cases
Nacha estimates that about 80% of ACH payments settle in one banking day or less. Debits settle the same day or the next banking day; credits settle the same day, the next banking day or in two banking days. The network carried 35.19 billion payments worth $93.00 trillion in 2025, according to Nacha.
Same Day ACH has three submission deadlines at the Federal Reserve: 10:30 a.m., 2:45 p.m. and 4:45 p.m. ET. Under Nacha's rules, the receiving bank must make funds from the first window available by 1:30 p.m. its local time, from the second by 5:00 p.m., and from the third by the end of its processing day. Next-day credits are due on the settlement date.
The limit has been $1 million per payment since 18 March 2022. In April 2026, Nacha said members had approved a rise to $10 million, effective 17 September 2027, for credits and debits in all three windows. Nacha counted 1.4 billion Same Day ACH payments worth $3.9 trillion in 2025. International ACH entries (IAT) stay ineligible.
Returns and reversals. ACH payments can come back after settlement. Nacha's guidance gives corporate payments a standard two-day right of return and consumer payments an extended 60-day right. A sender can also reverse an erroneous entry, such as a duplicate, a wrong amount, the wrong receiver or certain wrong dates, if the reversal reaches the receiving bank within five banking days of settlement.
Fedwire: final the same day, in business hours
Fedwire runs from 9:00 p.m. ET on the previous calendar day to 7:00 p.m. ET, Monday to Friday, excluding Federal Reserve holidays. Payments for a bank's customers must be sent by 6:45 p.m. ET. The Federal Reserve says transfers are "immediate, final, and irrevocable once processed."
That finality is why wires are used for large payments. Fedwire handled 217.3 million transfers worth about $1.15 quadrillion in 2025, an average of $5.28 million each. Fedwire moved to ISO 20022 messages in July 2025. In October 2025, the Federal Reserve Board said it would open Fedwire on Sundays and weekday holidays, no earlier than 2028, with the same 22 daily hours.
Wire fees vary by bank. As of October 2026, Chase charges $25 to send a domestic wire online from Performance Business Checking and nothing to receive one. Bank of America's November 2024 schedule lists $30 to send and $15 to receive.
Fedwire's next closures are 11 November, 26 November and 25 December 2026.
FedNow and RTP: instant, at any hour
FedNow went live on 20 July 2023 with 35 banks and credit unions. It runs 24 hours a day, every day of the year, and the Federal Reserve says payments complete within seconds. Under the commentary to the Federal Reserve's Regulation J, a FedNow payment is "final and irrevocable when made."
Federal Reserve Financial Services raised the FedNow network transaction limit from $1 million to $10 million, effective November 2025, as it announced on 9 September 2025. Banks can also set their own lower limits as a fraud control. FedNow carries credit transfers and requests for payment. Its 2026 fee schedule charges banks $0.045 per credit transfer, with a discount covering the first 2,500 each month. Regulation J limits it to domestic payments, according to an August 2026 Federal Reserve note. The Board proposed removing that restriction in April 2026, and the comment period closed on 9 June 2026.
RTP, run by The Clearing House, has operated since 2017. It also settles instantly and with finality, every day, and allows up to $10 million per payment. It had over 1,378 participants as of September 2026.
FedNow and RTP are separate networks with separate participant lists. Before relying on either, check that the payee's bank is on the network your bank sends on.
What account details each rail needs
- ACH: the payee's name, nine-digit ABA routing number and account number. Business payments use corporate entry codes such as CCD and CTX.
- Fedwire: for a domestic wire, Chase lists the recipient's full name and contact information, their bank account details and the ABA routing number.
- FedNow and RTP: a routing number and account number at a participating institution.
The Federal Reserve's E-Payments Routing Directory lists FedACH and Fedwire participants separately, and the ABA routing number file lists ACH and wire transfer as separate attributes. A routing number that receives ACH may not receive wires, so ask the payee which number to use for each rail.
How this works with Align
Align provides a named USD account in your company's name, with a US account number and routing number for ACH and Fedwire through Align's US banking partner, plus a named account for SWIFT. ACH and wire access isn't switched on automatically: you request it, and the US banking partner runs a second review after Align's KYB. The partner can decline or set limits. Dollars you receive land in your balance as USDC or USDT, and you can pay out in USD, EUR or GBP. See the USD business account and how to get a USD account as a non-US company.
Sources
- Nacha, How ACH payments work and ACH Network volume and value statistics (accessed October 2026)
- Nacha, Same Day ACH per-payment limit to increase to $10 million (April 2026) and rule details (accessed October 2026)
- Nacha, Same Day ACH payment limit to increase to $1 million (accessed October 2026)
- Nacha, Same Day ACH schedules and funds availability, RMAG Originator Essentials, Reversals and enforcement and Differentiating unauthorized return reasons (accessed October 2026)
- Federal Reserve Financial Services, FedACH processing schedule, FedACH services, Fedwire operating hours, Fedwire annual statistics, holiday schedules and E-Payments Routing Directory (accessed October 2026)
- Federal Reserve, Fedwire Funds Service and expansion of operating days (October 2025)
- Federal Reserve, A decade of U.S. cross-border payments efforts (August 2026)
- Federal Reserve, FedNow Service, FAQ and launch announcement (July 2023)
- Federal Reserve Financial Services, FedNow Service will raise transaction limit to $10 million (9 September 2025), FedNow 2026 fees and FedNow Explorer (October 2026)
- eCFR, Regulation J, subpart C (accessed October 2026)
- The Clearing House, RTP network (October 2026)
- Chase, How to wire money and Performance Business Checking fees (accessed October 2026)
- Bank of America, Business schedule of fees (effective 15 November 2024)
- American Bankers Association, Routing number (accessed October 2026)
Common questions
- Is Same Day ACH as fast as a wire?
- No. Same Day ACH settles in three batches during the business day, at 1:00, 5:00 and 6:00 p.m. ET, while Fedwire settles each payment as it's processed. Same Day ACH is also capped at $1 million per payment until Nacha raises the limit to $10 million on 17 September 2027.
- Can a wire be reversed?
- Not once it's processed. The Federal Reserve says Fedwire transfers are final and irrevocable, and Chase says that in most cases a wire can be stopped only if a cancellation reaches the bank before the transfer completes. Check the details before you send.
- Can any US bank account receive a FedNow payment?
- No, only accounts at institutions that have joined. The Federal Reserve says payers can exchange FedNow payments only with others whose institutions have also joined. Its FedNow site listed about 1,900 participants in October 2026.
- Can a company outside the US use ACH?
- Yes, if it has US account details: a routing number and account number at a US bank, through a provider or its own US entity. ACH payments that cross borders are a separate type, IAT, and Nacha doesn't allow them to be sent as Same Day ACH.
This guide is general information, not legal, tax or financial advice. Rules and providers' terms change; check the sources linked above and take advice on your own situation.
Related guides
Open a business account built on stablecoins.
Named USD, EUR, GBP and AED accounts in your company's name, with USDC and USDT in and out. Apply online; our compliance team reviews applications in 1 to 5 business days.