Pay by Bank is a checkout option that moves money straight from your bank account to the merchant’s bank account, with no Visa or Mastercard in the middle. A third-party provider such as Plaid, Trustly, or Fiserv links the merchant to your bank, and you approve the transfer by logging in to your own bank’s app or website. Most U.S. transactions still settle over the ACH network, though instant payment rails are growing quickly.1Board of Governors of the Federal Reserve System. Pay-by-Bank and the Merchant Payments Use Case Because no card is involved, the fees, settlement timelines, and consumer protections are different from a card purchase, and the differences matter most when something goes wrong.
What Happens When You Check Out
At checkout, you choose Pay by Bank instead of entering a card number. The system shows you a list of participating banks. You pick yours and get redirected to your bank’s own app or website to log in.1Board of Governors of the Federal Reserve System. Pay-by-Bank and the Merchant Payments Use Case
Your bank displays the payment amount and the merchant’s name so you can confirm the details. You authorize the transfer with whatever your bank normally uses: a fingerprint, face scan, or passcode. Your login credentials stay between you and your bank. The merchant and the payment provider never see them.1Board of Governors of the Federal Reserve System. Pay-by-Bank and the Merchant Payments Use Case
Once you approve, your bank sends the payment over the appropriate rail, the merchant gets confirmation that the transfer has been initiated, and you land back on the merchant’s site with a receipt. On your side, the whole thing takes seconds. The actual movement of funds between the two banks follows a separate timeline that depends on which network the payment travels over.
How Fast the Money Actually Moves
Three payment networks carry most Pay by Bank transactions in the United States, and the speed of your transfer depends on which one your bank and the merchant use.
ACH (Automated Clearing House) handles the bulk of U.S. Pay by Bank traffic today. Standard ACH payments settle on the next banking day, and same-day ACH is also available. Your bank may hold funds a bit longer before releasing them to the recipient, but the interbank settlement itself is quicker than many people assume.2Federal Reserve Financial Services. FedACH Processing Schedule
FedNow, the Federal Reserve’s instant payment service, settles in seconds, with a maximum timeout clock of 20 seconds. The receiving bank must make the money available immediately once the payment clears, and the service runs around the clock, including weekends and holidays.3FedNow Explorer. Understanding the Payment Timeout Clock
RTP (Real-Time Payments), operated by The Clearing House, also processes payments in seconds and runs continuously, with immediate confirmation to both sides.
Transaction Limits
Both FedNow and RTP cap single transfers at $10 million at the network level. RTP raised its ceiling to that figure in 2025, a tenfold jump from its previous $1 million limit.4The Clearing House. Breaking Barriers: RTP Network $10 Million Transaction Limit Spurs High-Value Payment Surge Those ceilings are not what you can send. Your bank sets its own per-transaction and daily limits well below the network cap based on its risk policies, and may apply tighter limits for new accounts or first-time payees.5FedNow Explorer. FedNow Service Increases Network Transaction Limit Check your account terms or ask customer service if you need to send a large amount.
If your balance can’t cover the transfer, the transaction will typically fail. Some banks charge a non-sufficient funds fee for failed transfers, commonly $10 to $35, though many large banks have reduced or eliminated these fees in recent years.
What Happens If Something Goes Wrong
This is where Pay by Bank differs most sharply from a credit card, and it’s the part most worth understanding before you use it.
Credit Card Protections You’re Giving Up
With a credit card, the Fair Credit Billing Act lets you dispute unauthorized charges, billing errors, and charges for goods that never arrived or weren’t as described. Your liability for unauthorized charges is capped at $50. While the dispute is open, you can withhold payment on the amount in question, and the issuer can’t report you as delinquent or close your account over it.6Consumer Advice – FTC. Using Credit Cards and Disputing Charges
What Regulation E Gives You Instead
Pay by Bank transfers are electronic fund transfers, so they fall under the Electronic Fund Transfer Act and Regulation E. The protections are real but narrower. If someone makes an unauthorized transfer from your account, your liability is capped at $50, but only if you tell your bank within two business days of learning about it.7GovInfo. 15 USC 1693g – Consumer Liability Wait longer and liability can climb to $500. If you don’t report an unauthorized transfer within 60 days of getting the bank statement that shows it, you can be on the hook for the full amount of any transfers that happen after that 60-day window.8eCFR. Regulation E Section 205.6 – Liability of Consumer for Unauthorized Transfers
The CFPB has clarified that if a scammer tricks you into sharing account access information and then uses it to pull money out, that still counts as an unauthorized transfer under Regulation E, so the liability caps apply.9Consumer Financial Protection Bureau. Electronic Fund Transfers FAQs
The Practical Difference
With a credit card, the money stays in your pocket during a dispute. With Pay by Bank, the money leaves your account first and you have to work to get it back. Your bank must acknowledge an error claim and begin investigating within 10 business days. The bank can take up to 45 days to finish, but if it needs the extra time it has to provisionally credit the disputed amount to your account within 10 business days and tell you about the credit within two business days of posting it.10eCFR. Regulation E Section 205.11 – Procedures for Resolving Errors For new accounts (within 30 days of the first deposit), those windows stretch to 20 business days and 90 days.
Pay by Bank also doesn’t give you the right to dispute a charge over the quality of what you bought. Credit cards offer that protection under certain conditions. Pay by Bank doesn’t.
Refunds Work Differently Too
Because Pay by Bank doesn’t run on a card network, there’s no chargeback. If a merchant owes you a refund, they have to send a separate transfer back to your account. That means refund speed depends on the rail: an ACH refund typically takes several business days, while a refund over FedNow or RTP can arrive in seconds if the merchant’s provider supports instant returns. Report any error, double charge, or wrong amount to your bank as quickly as possible, because the Regulation E clock runs from when you learn about the problem.
What the Payment Provider Sees About You
When you authorize a Pay by Bank payment, the third-party provider linking you to the merchant gets limited access to your bank account data. The CFPB’s Personal Financial Data Rights rule under Section 1033 of the Dodd-Frank Act sets limits on what providers can do with that access.11eCFR. Part 1033 Personal Financial Data Rights
A provider can only collect, use, and keep your data to the extent reasonably necessary to deliver the service you asked for. Using your data for targeted advertising, cross-selling, or resale is prohibited.12Federal Register. Required Rulemaking on Personal Financial Data Rights A provider’s permission expires after one year, and if you don’t reauthorize, it must stop collecting and, in most cases, stop using or holding the data it already gathered. You can revoke access at any time, and your bank has to give you a reasonable way to do so. Your bank also can’t charge you or the provider for setting up or maintaining the data connection.11eCFR. Part 1033 Personal Financial Data Rights
Before any sharing starts, the provider must show you a clear authorization disclosure explaining what data it will access and why, and you have to affirmatively agree.11eCFR. Part 1033 Personal Financial Data Rights One caveat: enforcement of the Section 1033 rule has been enjoined by a federal court pending the CFPB’s reconsideration, so the actual rollout timeline is uncertain.
Why Merchants Keep Offering It
The reason you’re seeing Pay by Bank as a checkout option more often is simple: it costs merchants less. Credit card processing fees typically run 1.5 to 3 percent of each transaction, with interchange fees driving most of that. ACH and instant payment rails charge flat per-transaction fees instead of a percentage, so merchant savings can be large. Industry estimates range from 40 to 85 percent cheaper than card acceptance, though actual savings depend on volume, average transaction size, and the provider’s pricing. The math works best for merchants handling large or high-volume payments like rent, tuition, and utilities, which is why those are the sectors pushing hardest to offer it.1Board of Governors of the Federal Reserve System. Pay-by-Bank and the Merchant Payments Use Case
For you as the payer, the trade-off is straightforward. Pay by Bank is quick, convenient, and keeps your card number out of the merchant’s hands. In exchange, you give up the stronger dispute rights and quality-of-goods protections that come with a credit card. For small, routine payments to merchants you trust, that trade is often fine. For a disputed purchase or an unfamiliar seller, a credit card still gives you more room to push back.