The payment processing lifecycle is the path a card transaction takes from the moment a customer swipes, taps, or enters a number to the moment cleared funds land in the merchant’s bank account. It has three stages: authorization, which finishes in seconds; clearing, which happens after the merchant batches the day’s sales; and settlement, which typically deposits funds one to three business days later. Refunds, chargebacks, and tax reporting are the tail end of that same lifecycle, and they are where merchants most often get surprised.
Authorization
Authorization is the first stage and the fastest. When a customer presents a card, the merchant’s terminal packages the card number, expiration date, security code, and transaction amount and sends it through the card network to the issuing bank, the bank that gave the customer the card.
The issuing bank runs the request through fraud-detection algorithms, checking the purchase against the cardholder’s typical spending patterns, geographic location, and recent activity. At the same time it verifies that the account has enough available credit or funds. It sends back an approval or decline code through the same network path, and if the answer is approval, it places a temporary hold on that amount in the cardholder’s account.
No money moves at this point. The hold simply reserves the funds so they will be available when settlement happens later. The whole round trip completes in a few seconds, which is why customers often assume the transaction is finished when the terminal beeps. The merchant has only received a promise that the funds exist and are earmarked.
Batching and Clearing
Approved authorizations accumulate in the merchant’s terminal or processing software throughout the day. At closing time, or at a scheduled hour, the system bundles them into a single file called a batch and transmits it to the payment processor.
Timing matters here. Authorization holds expire after a few days, so a merchant who delays batching risks having holds drop off, which can lead to declined settlements. Batching once per business day is the standard practice.
Once the batch reaches the processor, it is routed to the appropriate card networks, which sort each transaction by issuing bank and calculate the net amounts owed among all parties. This is clearing. Financial information is being exchanged, but actual money still hasn’t moved. Interchange fees, the per-transaction charges that the acquiring bank pays to the issuing bank, are calculated during this phase.
Settlement and Funding
Settlement is when money actually changes hands. Issuing banks debit their cardholders’ accounts and transfer funds through centralized clearing systems to the acquiring banks. In the United States, those transfers typically flow through the Automated Clearing House network, operated by the Federal Reserve Banks and the Electronic Payments Network.1Federal Reserve Board. Automated Clearinghouse Services Nacha governs the rules that apply to those transfers.2Nacha. ACH Payments Fact Sheet
Most merchants see funds deposited into their business accounts within one to three business days after batching. The acquiring bank deducts its processing fees, interchange costs, and any network assessment charges before depositing the remainder, so the amount that lands is smaller than the gross sales for the day.
For businesses that need faster access to cash, Same-Day ACH is available for individual payments up to $1 million, with that per-transaction cap scheduled to increase to $10 million in September 2027.3Nacha. Increasing the Same Day ACH Dollar Limit to $10 Million
Businesses in categories that card brands consider higher risk, including travel, adult entertainment, and subscription services, face an additional wrinkle. The acquiring bank often withholds a percentage of each settlement, commonly 5% to 10%, in a reserve account to cover potential chargebacks. That reserve builds over time and gets released according to the contract terms, and it can create real cash-flow pressure for new businesses that don’t plan for it.
The Fees Deducted Along the Way
Several fees come out between the gross transaction and the deposit. Merchants don’t pay a single processing charge; they pay a stack.
- Interchange fees are paid by the acquiring bank to the issuing bank on every transaction. They vary by card brand, card type (rewards cards cost more), merchant category, and whether the card was present or not. A grocery store swiping a basic debit card might pay fractions of a percent; an online retailer charging a premium rewards credit card could pay over 3%.4Mastercard. U.S. Region Interchange Programs and Rates
- For regulated debit cards, issued by banks with $10 billion or more in assets, federal law caps interchange at 21 cents plus 0.05% of the transaction value, with an additional 1-cent allowance if the issuer meets certain fraud-prevention standards. A proposed reduction to this cap has been under review but had not been finalized as of early 2026.5eCFR. 12 CFR Part 235 – Debit Card Interchange Fees and Routing (Regulation II)
- Assessment fees are smaller per-transaction charges paid to the card networks for using their rails. They are non-negotiable and typically run a few basis points.
- The processor markup is the acquiring bank or payment service provider’s own margin on top of interchange and assessments. This is the only part of the fee stack that is truly negotiable. It is often quoted as a flat percentage plus a per-transaction fee, with a common structure being somewhere around 2.9% plus $0.30 for online transactions, though rates vary widely based on volume and risk.
The total merchant discount rate, everything combined, generally falls between 1.5% and 3.5% of each transaction. High-volume businesses with low chargeback rates can negotiate toward the lower end, while e-commerce merchants and those in higher-risk categories tend to land near the top.
When the Flow Reverses: Refunds, Voids, and Chargebacks
The lifecycle doesn’t always end at settlement. Money can flow back to the cardholder through three different mechanisms, and the timing of each determines what it costs the merchant.
A void cancels a transaction before the batch settles. Because the authorization hold hasn’t been converted into an actual fund transfer yet, a void simply releases the hold on the cardholder’s account. No interchange fees are charged and no money moves. Voids are only available during the narrow window between authorization and batch settlement, usually the same business day.
A refund processes after settlement has already occurred. The merchant initiates a new credit transaction that travels back through the card network to the issuing bank, which then credits the cardholder’s account. Because the original transaction already cleared and settled, the refund goes through its own clearing and settlement cycle. Cardholders typically see refund credits within 5 to 10 business days, depending on the issuing bank. Refunds are more expensive than voids because the original interchange fee is usually not returned, and the merchant bears the full cost of both the outgoing and incoming transaction.
Chargebacks are the reversal that merchants don’t initiate. Under the Fair Credit Billing Act, a cardholder has 60 days from the date the creditor sends the statement to submit a written dispute.6Office of the Law Revision Counsel. 15 U.S. Code 1666 – Correction of Billing Errors Once the creditor receives that notice, it must acknowledge the dispute within 30 days and resolve the matter within two complete billing cycles, and no longer than 90 days.7eCFR. 12 CFR 1026.13 – Billing Error Resolution During the investigation, the creditor cannot attempt to collect the disputed amount or report it as delinquent.
On the merchant’s side, the issuing bank reverses the transaction, pulls the funds back from the acquiring bank, and the acquiring bank debits the merchant’s account. On top of losing the sale amount, the merchant typically pays a chargeback fee, often $20 to $100 per incident, with costs climbing for businesses that generate frequent disputes. The merchant can contest the chargeback by submitting evidence such as delivery confirmation, signed receipts, and communication logs, but winning a representment requires compelling documentation.
Reporting That Follows the Money
The lifecycle has one more leg that runs on an annual clock: tax reporting. Payment processors are required to report merchant transaction data to the IRS, and the rules differ depending on how the payments flow.
For transactions processed through traditional payment card networks such as Visa and Mastercard, there is no minimum threshold. Every dollar is reportable on Form 1099-K. Third-party settlement organizations, such as PayPal and payment apps, face a higher bar: they must file a 1099-K only when a merchant’s gross payments exceed $20,000 and the total number of transactions exceeds 200 in a calendar year.8Office of the Law Revision Counsel. 26 U.S. Code 6050W – Returns Relating to Payments Made in Settlement of Payment Card and Third Party Network Transactions9Internal Revenue Service. Understanding Your Form 1099-K Congress has revisited this threshold several times in recent years, so check the current rules at tax time.
Merchants also need to provide a correct Taxpayer Identification Number, either an EIN, Social Security number, or ITIN, to their payment processor. If the TIN is missing or incorrect, the processor must withhold 24% of all payments and remit that amount to the IRS as backup withholding. Correcting it requires furnishing the right TIN to the processor and certifying it under penalty of perjury.10Internal Revenue Service. Backup Withholding