What happens when a customer swipes their card at your register

When a customer pays with a credit card, their money does not go straight into your bank account. The payment travels through at least four separate companies — the customer's bank, a payment processor, your acquiring bank, and the card network — before you see it. Each one takes a small cut, and the whole journey usually takes one to three business days. Understanding this chain matters because delays, fees, and disputes all happen at different points along it, and knowing where your money is tells you where to look when something goes wrong.

The card network (Visa, Mastercard, American Express, or Discover) sets the rules for the entire system but does not handle the actual money. Your payment processor is the company you contract with — often Square, Stripe, PayPal, or your bank itself — and they are the ones you call when something breaks. Your acquiring bank is usually invisible to you; it is the bank that actually receives the funds from the card networks and deposits them into your business account.

Key Takeaways

  • Credit card payments pass through your processor, the card network, the customer's bank, and your acquiring bank before reaching your account, which is why deposits take one to three business days.
  • You pay interchange fees (set by card networks), assessment fees (set by networks), and processor markups (set by your processor) — the total usually ranges from 1.5% to 3.5% per transaction depending on card type and your processor.
  • Chargebacks happen when a customer disputes a charge with their bank rather than asking you for a refund, and you lose both the money and the product unless you can prove the transaction was legitimate.
  • Monthly statement fees, batch fees, gateway fees, and PCI compliance fees are separate from per-transaction costs and vary widely by processor, so comparing total cost matters more than comparing percentage alone.
  • Deposits usually arrive within one to three business days, but some processors hold a percentage in reserve or delay deposits if your chargeback rate is high.

The four parties involved and what each one does

The card network (Visa, Mastercard, American Express, Discover) owns the system and sets the rules. They decide which merchants can accept their cards, what fees are charged, and how disputes are handled. They do not touch the money — they are the referee, not the player.

The customer's bank (their issuing bank) holds the customer's account and decides whether to approve or decline the transaction. If the customer later disputes the charge, their bank is the one who investigates and decides whether to refund them.

Your payment processor is the company you signed up with. They provide the equipment or software that reads the card, send the transaction to the networks, collect the fees, and deposit money into your account. This is the company whose customer service number is on your statement. Examples include Square, Stripe, PayPal, Toast, and Clover.

Your acquiring bank is the bank behind your processor. It holds the merchant account where deposits land before moving to your business checking account. Most small business owners never interact with their acquiring bank directly — the processor handles that relationship — but the acquiring bank is who actually receives the funds from the card networks.

How fees are calculated and where they go

Every credit card transaction costs you money in three layers. The first layer is the interchange fee, set by the card networks and paid to the customer's bank. This fee varies by card type — a rewards credit card costs more than a basic debit card — and by how the card is processed. A card swiped in person costs less than a card number typed in over the phone. Interchange fees typically range from 1% to 2.5% of the transaction amount.

The second layer is the assessment fee, also set by the card networks and paid to the networks themselves. This is usually 0.1% to 0.3% of the transaction amount and is the same for every transaction on that network.

The third layer is your processor's markup, which is what your processor keeps. This is where competition matters. Some processors charge a flat percentage (like 2.9% plus $0.30 per transaction), others charge a tiered rate (different percentages for different card types), and some charge interchange-plus pricing (they pass through the actual interchange and assessment fees and add a fixed markup on top). Processor markups typically range from 0.5% to 1.5% depending on your volume and the processor you choose.

On top of per-transaction fees, most processors charge monthly or annual fees. These might include a monthly statement fee ($5 to $15), a batch fee (charged each time you settle transactions, usually $0.25 to $0.50), a gateway fee if you process online ($10 to $30 per month), and a PCI compliance fee ($5 to $100 per month depending on whether the processor handles compliance or you do). These fees add up and are often where processors make money from small businesses with low transaction volume.

Why deposits take time and what can delay them

Your processor does not deposit money the moment a customer swipes their card. Instead, transactions are bundled into batches, usually settled once per day. The processor then sends the batch to the card networks, which send it to the customer's banks, which debit the customer's account. Only after the customer's bank confirms the debit does the acquiring bank receive the funds. This chain typically takes one to three business days, which is why you see deposits labeled "pending" before they clear.

Several things can slow this down. If you process a transaction late in the day, it may not settle until the next business day. Weekends and holidays add delays because banks do not process transactions on those days. If your processor uses a reserve account — holding back a percentage of each deposit as insurance against chargebacks — those funds may not arrive for 30 to 90 days or may not arrive at all if your chargeback rate is low enough that the processor releases them.

Some processors also delay deposits if your chargeback rate is high. If too many customers dispute charges, the processor may hold deposits for longer or require you to maintain a higher reserve. This is a risk management tool — the processor is protecting themselves against the possibility that you are running a fraudulent operation.

Chargebacks: when a customer disputes the charge with their bank instead of you

A chargeback happens when a customer contacts their bank and says "I did not authorize this charge" or "I did not receive what I paid for," rather than asking you for a refund. Their bank reverses the charge, pulls the money back out of your account, and charges you a chargeback fee (usually $15 to $100). You lose the money, the product or service, and the fee.

You can fight a chargeback by providing evidence that the transaction was legitimate. This evidence might include a signed receipt, a shipping confirmation, an email exchange with the customer, or a video of the customer using the product. The burden is on you to prove the transaction was valid. If you win the dispute, the money goes back into your account and the fee is waived. If you lose, the money stays gone.

A high chargeback rate — usually defined as more than 1% of your transactions — signals to processors and banks that something is wrong. Your processor may increase your fees, require a larger reserve, or terminate your account. This is why it matters to respond quickly to customer complaints and to keep records of every transaction.

Different pricing models and how to compare them

Processors offer several different pricing structures, and comparing them requires looking at your actual transaction mix, not just the advertised rate.

Flat-rate pricing (like "2.9% plus $0.30 per transaction") is straightforward to understand but usually costs more if you process high-value transactions or if you accept many rewards cards. The processor charges the same percentage regardless of card type or how the card is processed.

Tiered pricing divides cards into categories — "may have access to" (basic debit and credit cards), "mid-may have access to" (rewards cards), and "non-may have access to" (corporate cards or cards processed without the card present) — and charges a different rate for each tier. This can be cheaper than flat-rate if most of your transactions are may have access to, but it is harder to predict your costs because the processor controls which transactions fall into which tier.

Interchange-plus pricing passes through the actual interchange and assessment fees (which you can see on your statement) and adds a fixed markup on top. This is usually the cheapest option for high-volume businesses because you pay only the actual network fees plus the processor's margin, with no hidden tiers. It is less common for very small businesses because processors prefer the opacity of tiered pricing.

To compare processors fairly, calculate what you would pay under each model using your actual transaction history from the past month. Do not compare percentage rates alone — add in monthly fees, batch fees, gateway fees, and any other charges. The processor with the lowest advertised rate may not be the cheapest overall.

What information the processor needs from you and your customers

When you sign up with a processor, you will provide your business license, tax ID, bank account information, and details about what you sell. The processor uses this to set up your merchant account and determine your risk category. Some processors also ask for your personal credit report or bank statements to verify that you are a real business.

For each transaction, the processor collects the card number (or a token representing it), the expiration date, the cardholder's name, the transaction amount, and the date. If the card is not physically present — such as when a customer reads their card number to you over the phone or enters it on your website — the processor also notes that, because these transactions have higher chargeback rates and therefore higher fees.

The processor is required by law to comply with PCI DSS (Payment Card Industry Data Security Standard), a set of rules designed to protect card data from theft. If your processor handles PCI compliance for you, they charge you a monthly fee (usually $5 to $100) and you do not need to worry about it. If you handle it yourself, you are responsible for keeping card data find, which usually means using a certified payment gateway and never storing full card numbers on your own servers.

Frequently Asked Questions

Why does my deposit show up as pending for two days?

Transactions settle in batches, usually once per day, and then travel through the card networks and banks before reaching your acquiring bank. This chain takes one to three business days. Weekends and holidays add delays because banks do not process on those days. Some processors also hold deposits in a reserve account for 30 to 90 days as insurance against chargebacks.

Can I negotiate my processing fees?

Yes, especially if you process high volume or have low chargebacks. Processors compete for business and will often lower their markup or waive monthly fees to win your account. Get quotes from at least three processors using your actual transaction history, and mention competing offers when you negotiate. Larger businesses have more leverage than small ones, but even small businesses can sometimes negotiate better rates.

What is the difference between my processor and my acquiring bank?

Your processor is the company you signed up with and call for support. Your acquiring bank is the bank behind the processor that actually receives funds from the card networks. Most small business owners never interact with their acquiring bank directly — the processor handles that relationship. You only need to know about your acquiring bank if your processor goes out of business and you need to move your merchant account.

What happens if a customer does a chargeback?

The customer's bank reverses the charge and pulls the money out of your account. You lose the transaction amount, the product or service, and a chargeback fee (usually $15 to $100). You can fight the chargeback by providing proof the transaction was legitimate — a receipt, shipping confirmation, or email exchange. If you win, the money goes back in. If you lose, it stays gone. A high chargeback rate can cause your processor to raise your fees or close your account.

Do I have to use my bank's payment processor?

No. You can use any processor you want, even if it is not affiliated with your bank. Many small businesses use third-party processors like Square, Stripe, or PayPal because they offer lower fees or better features than their bank's processor. Your processor and your bank are separate relationships — your processor deposits money into your bank account, but you do not have to use the same company for both.