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World desk7 min

How FinTech Is Changing the Way Americans Spend

Mobile payments, installment plans, and bank-to-bank options are expanding how U.S. consumers spend, while cards and cash remain important. Here’s how the methods differ and what to check.

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FinTech is making routine spending easier to initiate by phone, splitting some purchases into installments, and enabling new ways to move money between bank accounts. But digital payments have not replaced cash or cards: U.S. consumers still use all three, and access, fees, repayment terms, privacy, and error resolution vary by payment method.

What is changing in everyday payments?

U.S. consumers made an average of 48 payments per month in 2024. Mobile-phone payments accounted for an average of 11 per month, up from four in 2018, according to the Federal Reserve Financial Services’ 2025 Diary of Consumer Payment Choice, based on a survey conducted in October 2024. Age mattered: adults aged 18–24 made 45% of their payments by mobile phone.

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Phones are becoming a more regular way to pay, but the overall mix remains varied. By number of payments in 2024, 35% were made by credit card, 30% by debit card, and 14% in cash; other payment methods accounted for the remaining share. Cash was the third-most-used instrument and continued to serve as a backup. The same Federal Reserve release reports that cash use held steady at seven payments per month on average since 2020.

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These figures describe U.S. payment behavior, not a worldwide pattern or proof that physical money is disappearing. They point to a change in how people access payment methods, alongside continued use of familiar options.

How do phone payments and payment apps differ?

Mobile wallets

A mobile wallet stores payment credentials on a phone so the user can initiate a purchase, such as at a compatible checkout. The phone is the interface; the underlying funds may still come from a linked card or bank account. A wallet is not necessarily the same thing as an account that holds a balance.

App balances and person-to-person transfers

Some nonbank payment apps let users hold funds or send money to another person. That is different from using a phone as a container for a card credential: the app may be managing a balance or transfer rather than simply passing a card payment to a merchant.

Convenience does not remove the need to check the destination and amount before confirming a payment. The Consumer Financial Protection Bureau (CFPB) identified privacy and surveillance, fraud and errors, and account freezes or closures as concerns in its November 21, 2024 announcement about oversight of digital payment apps. The agency also noted that some popular app funds may not have federal deposit insurance, so do not assume an app balance has the same protections as an insured bank deposit. Review the provider’s terms and understand how to report a problem before keeping a meaningful balance in an app.

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The CFPB said the apps covered by its 2024 announcement handled more than 13 billion consumer payment transactions annually and described an annual threshold of 50 million transactions for covered companies. Those are the agency’s estimates and rule details as stated in 2024; the announcement alone does not establish the rule’s present legal status.

What does buy now, pay later change?

Buy now, pay later (BNPL) lets a customer make a purchase and repay it in installments. A common format described by the Federal Reserve is a small number of equal payments, usually four, often without interest. That description is not universal: terms, fees, interest, and repayment schedules depend on the product.

BNPL was a meaningful part of U.S. consumer credit use in the latest household figures: 15% of adults said they had used it in the prior 12 months, compared with 14% in 2023 and 10% in 2021. Among prior-year users, 87% selected spreading payments and 82% selected convenience as reasons; respondents could choose more than one reason. Separately, 58% said BNPL was the only way they could afford the purchase. These findings appear in the Federal Reserve’s Report on the Economic Well-Being of U.S. Households in 2024: Banking and Credit.

Installments still create obligations, even when a plan is interest-free. Several overlapping schedules can make upcoming outflows harder to see alongside rent, utilities, card payments, and other bills. Before using BNPL, check the total due, each payment date, any fees or interest described in the terms, and whether the installments fit the household budget.

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What are Pay-by-Bank and open banking?

Pay-by-Bank is a way to pay a merchant directly from a customer’s bank account. It describes a payment flow and the infrastructure behind it, not necessarily a standalone consumer app. In a typical flow, the customer selects a bank, authenticates with that bank, consents to data access, and authorizes a particular amount and payee. The Federal Reserve’s July 7, 2025 note on Pay-by-Bank describes payments routed over ACH or instant-payment rails and settled directly to the merchant’s bank account. In the API flow described in the note, credentials stay between the customer and the bank.

Open banking can enable this kind of connection by allowing a customer to authorize access to account data or payment initiation through a provider. Adoption was still limited in the evidence cited: about 11% of U.S. adults had made an open-banking payment in the preceding year, according to a 2024 study reported in the Federal Reserve’s 2025 note. That is a sign of an emerging option, not evidence that it is the default way to pay.

Pay-by-Bank is not automatically cheaper, safer, or faster than paying by card. The Federal Reserve note says merchant costs vary by provider, service, transaction, and bank fees. Consumers should also check what data they are authorizing, the amount and recipient, when the funds will leave the account, and how to raise a dispute if something goes wrong.

What are instant payments, and what is FedNow?

Instant payments move funds between participating financial institutions in near real time. FedNow is a Federal Reserve service for banks and credit unions, not an app consumers download. A participating institution may make instant-payment features available through its own website or mobile app, but access depends on the institution and its services.

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The Federal Reserve’s FedNow Service FAQ, last updated July 17, 2024, describes real-time, 24/7/365 availability of funds for participating institutions. It also states that FedNow is not a digital currency and does not replace cash. The existence of the payment rail therefore does not mean every customer can send or receive instant payments through their bank.

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How should you choose a payment method?

Compare the actual transaction, not just the name of the technology. A wallet may initiate a card payment; an app may hold a balance or send a transfer; Pay-by-Bank draws from a bank account; and BNPL creates a repayment schedule. Availability and protections depend on the provider, financial institution, merchant, and transaction.

Method Where funds come from What it does Timing and availability Costs and repayment What to check
Mobile wallet Often a linked card or bank account; the exact source depends on the wallet setup. Initiates a purchase using stored payment credentials. Depends on the wallet, device, and merchant’s acceptance. Depends on the underlying payment method and its terms. Confirm the funding source, merchant, and amount; check how the wallet handles errors and account access.
Payment app balance or person-to-person transfer An app balance or linked funding source, depending on the service. May hold funds or send money to another person. Depends on the provider and transaction; the sources cited here do not establish a universal transfer time. Provider-specific; check for fees and any limits in the terms. Check the recipient carefully, understand dispute steps and access restrictions, and do not assume an app balance is federally insured.
BNPL A credit or payment arrangement provided under the product’s terms. Finances a purchase through scheduled installments. Purchase occurs under the plan; repayment follows its schedule. Some common plans use a few equal payments, often without interest, but terms vary. Review the full schedule, fees or interest, and how payments fit with other upcoming bills.
Pay-by-Bank The customer’s bank account. Authorizes a direct account-to-merchant payment, commonly over ACH or an instant-payment rail. Depends on the rail, bank, provider, and transaction. Costs vary by provider, service, transaction, and bank fees; it is not inherently cheaper. Review data consent, payee, amount, timing, and the provider’s error-resolution process.
Instant payment through a financial institution A participating customer’s bank or credit-union account. Moves funds between participating institutions; the consumer-facing access may be through the institution’s app or website. Can be real-time and available 24/7/365 through participating institutions; access is not universal. Fees and limits depend on the financial institution and service. Confirm that both the sending and receiving institutions support the service and check the institution’s terms.
Cash or card Cash on hand, or a linked bank account for debit; credit card purchases use the card account. Pays a merchant directly. Acceptance depends on the merchant; cash remains a useful backup where digital access or acceptance is unavailable. Card costs and any interest depend on the card agreement; cash has no installment schedule. Check the card’s terms and protections, or carry an appropriate backup when digital payment access may be unavailable.

No single method is best for every purchase. For a routine checkout, prioritize acceptance and the funding source you intend to use. For a transfer, verify the recipient and timing. For an installment plan, assess the full schedule rather than only the first payment. For any app or bank-linked flow, review privacy permissions and the route for correcting an error.

What the future of everyday spending is likely to mean

The clearest change is more choice in the interface and route: a phone can initiate a card purchase, apps can facilitate transfers, installment plans can spread a purchase across dates, and bank-account payments can move through ACH or instant-payment rails. These options coexist with cards and cash rather than making them obsolete. The practical question for each transaction is not whether a payment method is “the future,” but what account it draws on, when money moves, what obligations or costs follow, and what recourse is available if it fails.

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