What happens when you process a credit card payment

When you take a credit card payment, you're asking the card network—Visa, Mastercard, American Express, or Discover—to move money from the cardholder's bank account to yours. The cardholder's bank checks whether the account has enough funds and whether the transaction matches their fraud rules. If both pass, the money is held and sent to your bank within one to three business days. Until that moment, the cardholder can still dispute the charge.

The process looks when ready to the customer, but behind the scenes several companies are involved: the cardholder's bank, the card network, your bank (called the acquiring bank), and the payment processor that connects you to all of them. Each one takes a small cut, which is why credit card fees exist. Understanding this chain matters because it explains why some payments fail, why refunds take time, and what you can and cannot do once a transaction is submitted.

Key Takeaways

  • You need either a physical card reader, a virtual terminal on your computer, or a payment link to accept credit cards—the method depends on whether the customer is present and what your business type is.
  • The cardholder's bank has the final say on whether a payment goes through; you cannot force a payment if their bank declines it.
  • Money from credit card sales does not arrive in your account the same day—most deposits land within one to three business days, and some processors hold funds longer.
  • Once you submit a payment, the cardholder has the right to dispute it with their bank for up to 120 days, so keeping records of what was sold is essential.

In-person payments: using a card reader or terminal

If the customer is standing in front of you, you have two main options. A card reader is a small device that plugs into your phone or tablet—Square, PayPal, and Clover all make them. The customer inserts, taps, or swipes their card, and the reader sends the information to the payment processor. These readers are cheap to buy (often $20 to $100) and work anywhere you have cell service or WiFi.

A point-of-sale terminal is a dedicated machine that sits on your counter. It's larger, more durable, and often includes a built-in receipt printer and customer-facing screen. Restaurants, retail shops, and gas stations typically use these. Terminals cost more upfront (usually $300 to $1,000) but process payments faster and can handle higher volumes without slowing down. Your payment processor will either sell you one or lease it to you monthly.

Both methods work the same way from the customer's perspective: they present the card, the device reads it, and they either sign or enter a PIN. The difference is speed and durability. If you process fewer than 20 payments a day, a card reader is usually enough. If you're processing hundreds, a terminal pays for itself.

Online and remote payments: virtual terminals and payment links

If the customer is not in front of you—they're ordering online, over the phone, or by email—you cannot use a physical reader. Instead, you use a virtual terminal, which is a webpage where you type in the card details yourself. Your payment processor (Stripe, Square, PayPal, or your bank) provides this. You log in, enter the cardholder's name, card number, expiration date, and the three-digit security code on the back, then submit the payment.

A payment link is faster if you're taking payments regularly. You create a link through your payment processor, send it to the customer via email or text, and they enter their own card details. This way you never see the card number—the processor handles it directly. Payment links work well for invoices, donations, and subscription billing. Services like Stripe, Square, and PayPal all offer them.

For phone orders, you type the card details into the virtual terminal while the customer reads them to you. For online orders, the customer enters the details themselves on a checkout page. Either way, the payment processor encrypts the card number so that neither you nor your bank ever stores the full number in plain text. This protects you from data breach liability and keeps the customer's information safer.

What happens after you submit the payment

Once you hit submit, the payment processor sends the transaction to the card network (Visa, Mastercard, etc.), which routes it to the cardholder's bank. That bank has a few seconds to a few minutes to decide: Does the account have enough money? Does the transaction look like fraud? Is the card active and not reported stolen? If the answer to all three is yes, the bank approves the payment and the processor tells you when ready—usually with a confirmation number on the screen.

If the bank declines the payment, you see an error code. Common reasons are insufficient funds, incorrect card number, expired card, or the bank's fraud filter flagging the transaction. When this happens, the payment does not go through at all—no money moves. You can ask the customer for a different card or payment method, but you cannot override the bank's decision.

Once approved, the money is held in a clearing account for one to three business days. During this time, the cardholder can still contact their bank to dispute the charge. After the money lands in your account, the dispute window is still open—it extends up to 120 days from the transaction date. This is why keeping receipts and records of what you sold matters: if a customer disputes the charge later, you need proof that the transaction was legitimate.

Fees and what they cover

Every credit card payment costs you money. The cardholder's bank takes an interchange fee (usually 1 to 3 percent of the sale), the card network takes a small cut, and your payment processor takes a processing fee (typically 2.2 to 3.5 percent plus $0.30 per transaction for online payments, or 2.6 percent plus $0.10 for in-person payments). These percentages vary by card type—American Express and Discover often cost more than Visa or Mastercard—and by your processor's pricing model.

Some processors offer flat-rate pricing (a single percentage for all cards), while others use interchange-plus pricing (the actual interchange fee plus a processor markup). Flat-rate is simpler to understand; interchange-plus is usually cheaper if you process high volumes. A few processors charge monthly subscription fees instead of per-transaction fees, which makes sense if you process thousands of dollars weekly.

These fees are built into the price you charge the customer. You cannot pass the fee to the customer as a separate charge in most states—that's called surcharging, and it's prohibited by Visa and Mastercard in most places. Some states allow it, but only if you disclose it clearly at the point of sale. Check your state's rules and your processor's terms before you try it.

Refunds and chargebacks

If you need to return money to the customer—they changed their mind, the product was defective, or you overcharged them—you issue a refund. You log into your payment processor, find the original transaction, and click "refund." The processor sends the money back to the cardholder's bank, which deposits it into their account. Refunds usually take one to three business days, sometimes longer depending on the bank.

A chargeback is different: it's when the cardholder disputes the charge directly with their bank instead of asking you for a refund. The bank investigates and either sides with the customer or with you. If the bank sides with the customer, the money is pulled from your account and returned to them. You also pay a chargeback fee (usually $15 to $100) even if you win the dispute. Chargebacks happen when customers claim they didn't recognize the charge, the product never arrived, or the merchant committed fraud. Keeping clear records—order confirmations, shipping receipts, customer emails—is your best defense.

Choosing a payment processor

Your payment processor is the company that provides the reader, terminal, or virtual terminal and handles the money movement. The big names are Square, PayPal, Stripe, and your own bank. Each has different strengths. Square is best for small retail and service businesses because the card reader is cheap and the interface is straightforward. Stripe is best for online businesses and developers because it integrates easily with websites. PayPal works for almost everything but can be slower to deposit money. Your bank often has the highest fees but may waive them if you keep a minimum balance.

When comparing processors, look at three things: the per-transaction fee, the monthly fee (if any), and the deposit speed. A processor that charges 2.9 percent plus $0.30 per transaction is standard. Monthly fees range from zero to $30. Deposit speed is usually one to three business days, but some processors hold money longer if you're new or if your business type is considered high-risk (like online gambling or travel). Ask the processor directly about deposit speed before you sign up—it matters if you need cash flow quickly.

Frequently Asked Questions

Can I take a credit card payment without a card reader or terminal?

Yes, using a virtual terminal. You log into your processor's website, type in the card details, and submit the payment. This works for phone orders or if you're taking occasional payments. However, you see the full card number, which creates data security responsibility. Most processors recommend using payment links instead, where the customer enters their own details.

Why did a payment get declined?

The cardholder's bank rejected it. Common reasons are insufficient funds, incorrect card number, expired card, or the bank's fraud filter. Ask the customer for a different card or payment method. You cannot override the bank's decision, and you should not keep trying the same card repeatedly—that can trigger fraud alerts.

How long does it take for the money to show up in my account?

Usually one to three business days. Some processors are faster; others hold funds longer if you're new or high-risk. Weekend and holiday deposits may take longer. Check your processor's terms or ask them directly about their deposit schedule.

What if a customer disputes a charge months later?

The cardholder's bank will investigate. You can respond with proof that the transaction was legitimate—order confirmation, shipping receipt, customer email, or signed agreement. If the bank sides with you, the money stays in your account. If they side with the customer, the money is returned and you pay a chargeback fee. Keep records for at least a year.

Do I have to accept credit cards?

No. You can accept only cash, checks, or other payment methods. However, most customers expect credit card options, so refusing them may hurt your business. If you do accept them, you must follow the card network rules—you cannot charge different prices for credit versus cash, and you cannot require a minimum purchase amount.