Experts recommend keeping one to two months' worth of expenses in checking

That amount allows you to pay your bills and avoid overdraft fees while ensuring you don't lose interest. Most checking accounts have a near-zero interest rate (0.07% APY on average) while high-yield savings could earn up to 4% as of 2026. Cash sitting in your checking account can mean a loss of hundreds of dollars.

Payday lenders usually require borrowers to post-date a check or provide access to an electronic bank account

If borrowers can't pay back the loan, they can be subject to overdraft fees from their bank and other fees from the payday lender—further exacerbating the debt borrowers face.

Near-universal banking masks a large underbanked shadow system

FDIC data indicates 128 million households have a checking account, the vast majority (96% in 2024). But more than 14% of households are underbanked, meaning they have accounts but also rely on nonbank services such as check cashing, payday loans, or prepaid cards.

How the checking account has evolved into a platform of features rather than a product

The accounts act as an anchor for customer relationships that banks need to retain said customers. As fintech companies unbundle the checking account without technically being chartered banks, traditional banks face pressure to innovate the checking account experience.

Paper check usage is down 83% over 25 years

At the start of the millennium, more than 68 million checks were processed daily. Amid the adoption of automated clearinghouse (ACH) payment systems, that number has sunk to 12 million a day.

Savings accounts earn more interest and limit monthly transactions

While the checking account is many people's primary daily account, savings accounts can earn customers more in interest, though access to these funds is generally more limited. Customers can earn several percent interest in savings accounts compared to near-zero checking account rates.

The average household checking account balance is $16K, while the median is $2.8K

Average household checking account balances have doubled since 1989. Older, white, educated, and male customers tend to have larger balances on average, according to the data. See further data visuals here.

Banks have increased small loan programs since 2018, upping competition for payday lenders

One of the reasons payday lending flourished for nearly two decades is that most banks charged high overdraft fees and didn't offer small loans. However, since 2018, banks have increased their small loan options. Supporters say this provides safer alternatives for consumers, as banks are subject to more regulatory measures and are less likely to allow consumers to keep rolling over loans.

Banks make money by loaning customer deposits and earning interest

This means the interest you earn on your deposits is lower than what the bank earns on the same amount. Banks often keep cash reserves (though a minimum requirement was rescinded in 2020) but generally invest in government bonds, corporate securities, and loans to other banks. During bank runs, depositors withdraw more than the bank has on hand.

For every $100 you deposit, your bank puts a few cents in the FDIC insurance fund

This is a result of the 1933 Banking Act that established the Federal Deposit Insurance Fund. The law sought to prevent bank runs like those that decimated the banking industry amid the Great Crash and subsequent major depression. Today, individual depositors are insured up to $250K at each bank where they have an account.

Congress banned banks from paying checking account interest for 80 years

Known as "Regulation Q," the act sought to stop bank competition for customers involving increasing interest rates in the 1930s. This competition led banks to make reckless investment decisions to pay higher interest rates. During the ban, banks competed by focusing on convenience (ATMs, branches), relying on fees, and building relationships.

The average American household spends $6,545 per month

While the median household income is $84K, the typical bank account balance is $8K.

Credit card companies make money through interest, annual fees, and more

They also profit from interchange fees, the fee the retailer has to pay the credit card network in order to facilitate a transaction. The fee is typically between 1% and 3% of the transaction amount.

In 2025, the 'two strikes and you're out' rule took effect to protect consumers from repeated attempts to withdraw money

After years of being delayed by litigation, a 2024 US Supreme Court ruling upheld a law that prevents lenders from attempting to take payments from accounts with insufficient funds more than twice without reauthorization. This tactic is commonly used by payday loan companies, which technically require repayment on the day borrowers receive their paychecks.

Customers wrote just one check a year in 2024, on average

Major retailers like Target have stopped accepting checks in recent years as real-time payment systems are increasingly being implemented across the US. This shift is considered an improvement in safety—as checks are vulnerable to fraud—but can lead to some exclusion for those without access to digital devices.

ATMs drastically expanded access to checking accounts in the 1960s

The invention disrupted the local bank industry, allowing customers to access cash around the clock and when out of town. The innovation also reduced the headcount needed for bank services and created a new revenue stream via ATM fees for noncustomers. This 50-year anniversary retrospective revisits the cash kiosk.

The costs and fees for a payday loan include a 'finance charge'

Payday lenders typically make money via finance charges, a percentage or dollar amount that the borrower owes the lender per $100 borrowed. While the finance charge can range from $10 to $30 for every $100 borrowed, this would equate to an annual percentage rate of almost 400 percent for a two-week loan.

Gas stations top the list of riskiest places to use a debit card

Unlike credit cards, debit cards withdraw funds directly from your checking account, and federal laws provide fewer consumer protections against debit fraud. Gas station "skimmers" and long periods of separation from the card at restaurants are some of the more vulnerable spots for use.

A third of Americans don't have the cash they need to cover a $500 emergency, according to a 2023 Federal Reserve survey.

Financial institutions check for lots of things before authorizing a purchase

Before authorizing a purchase, card issuers consider whether or not the cardholder has a high enough available credit limit to make the purchase, where the purchase is being made in order to reduce fraud, and more.

About one dollar in every six that are owed to the federal government aren't paid each year

That adds up to close to $1T in what's known as the "tax gap." Read a breakdown on the main drivers of tax evasion (distinct from legal tax avoidance) in the US.

Why Americans are drowning in credit card debt

Americans owe more than $1T to credit card companies. And with rising interest rates that prevent cardholders from paying down debt (not to mention the rising cost of living), that number is likely to keep growing. A podcast episode explains how the US got here, and what policymakers and individuals can do about it.

Over 25% of Americans regret using BNPL due to unexpected costs

Almost 24% of buy now, pay later users have missed payments, with younger users (32% of 18- to 29-year-olds) being more likely to fall behind on payments than their older counterparts. (Only 12% of adults age 60 or over had done the same.)

Merchants have to pay credit card transaction fees each time a card is swiped

Credit card networks such as Visa, Mastercard, and American Express must calculate fees for not only the customer, but also the merchant in every transaction.

Roughly 39% of Visa's revenue comes from data processing fees.

Visa gets roughly 0.13% to 0.14% of each transaction. About 32% of its revenue stems from the money banks pay Visa to use its services, and roughly 26% of its revenue comes from international transaction fees.

Different CDs can have different term lengths, interest rates, and more

For instance, if a bank needs more deposits to fund loans, then it may offer high interest rates to attract deposits. Alternatively, a large bank with sufficient deposit reserves may have less incentive to grow its CD portfolio, offering lower rates as a result.

Mutual funds come with a few associated fees.

Apple Pay is activated on more than 78% of US iPhones

As a result, some banks worry they could be losing ground to the tech company. As consumers continue to use Apple Pay instead of pulling out their physical debit card to pay for everyday items, some banks are fighting back in the digital wallet war.

Even high earners are living paycheck to paycheck

While roughly 14% of American households make $200K or more per year, many of them still don't feel rich. For instance, more than 60% of people with salaries over $300K per year still struggle with credit card debt.

How banking works

To do big things, people often need more money. Banks jumpstart economic activity with loans paid back with interest, and when things are working well, both people and the bank make more money. Formed in the Middle Ages amid competing currencies in Italy, banks—from the Italian for bench, banco—helped stimulate that era's commercial revolution, a massive expansion in Mediterranean trade and development. Find out the ins and outs of banks in this quick explainer video.

Making sense of the parts of a check

Though individuals use checks sparingly if at all, half of businesses rely heavily on check-writing to pay suppliers and contractors. Get to know the parts of a check with this visual guide.

Roughly 43 million Americans hold a cumulative $1.6T in federal student debt

About 43 million Americans hold a cumulative $1.6T in federal student debt. That's more than the country's combined credit card balance, according to data from in the first quarter of the year 2024.

Congress mandated that the Fed streamline check payments

When it was first created in the 1910s, the Federal Reserve System became a crucial link between the nation's regional banks. The increasing number of checks used by the thousands of banks across the nation required a central operator, and the Fed was uniquely positioned to help. Learn more about the role the Fed played in the history of checks.

A 'debt trap' refers to the need for loans or credit to cover the expenses incurred from other debt

Debt traps can be caused by unforeseen expenses or inadequate savings and can be a brutal cycle to break. At the end of 2025, total household debt in the US reached $18.8T, according to data from the Federal Reserve of New York.

Paying a fee to delay paying back a loan in full is called 'rolling over' the loan

Borrowers sometimes roll over loans when they aren't able to pay back the full principal balance and accrued interest. A rollover extends the amount of time the borrower has to repay the loan, but does not decrease the amount of money the borrower has to pay back.

Watch a breakdown of 'The Volcker Rule,' which stopped banks from being able to make trades with client money and is one of the most controversial financial regulations to date.

Anti-money laundering laws forcing banks to report data have become important foreign policy tools

Since the Bank Secrecy Act of 1970, which required banks to report transactions exceeding $10K and keep records on customers, anti-money laundering laws have become an important proxy for American foreign policy initiatives. Increased regulation via financial institutions helps curb drug and human trafficking, as well as destabilize the financial infrastructure for terrorist organizations.

American Express intentionally targets wealthy cardholders, who spend higher amounts per transaction and tend to make more transactions than the average cardholder, thereby reducing the company's risk.

The average American household spends over $3K annually on dining out

The exact number is $3,228, or $269 per month. WalletHub found the number by crunching the data reported by the US Bureau of Labor Statistics between 2014 and 2023.