Payment Processing Glossary

Plain-English definitions of the terms you'll see on your processing statement, in contracts, and when comparing providers.

ACH Processing: Automated Clearing House (ACH) processing enables bank-to-bank electronic fund transfers without using a credit card network. ACH transactions are initiated through the Federal Reserve's ACH network and typically settle within 1–3 business days, though same-day ACH is available for an additional fee. For merchants, ACH is significantly cheaper than credit card processing — typically a flat fee of $0.25–$1.00 per transaction regardless of the amount, compared to 1.5%–3.5% for card payments. ACH is commonly used for recurring billing, rent collection, B2B invoice payments, payroll, and any high-dollar transaction where the percentage-based cost of card processing becomes prohibitive. The main tradeoff is that ACH payments can be returned (like a bounced check) and have limited fraud protection compared to credit cards.
Authorization Hold: An authorization hold (also called a pre-authorization or "pre-auth") is a temporary reservation of funds on a cardholder's available credit or debit balance when a transaction is initiated but not yet finalized. The hold confirms the card is valid and the funds are available, but no money actually moves until the transaction is captured and settled. Hotels place authorization holds for the estimated stay amount plus an incidental buffer (often $50–$200/night) at check-in. Gas stations pre-authorize $1 or up to $125–$175 per pump to cover the full fill-up. Car rental companies hold the estimated rental total plus a deposit. Authorization holds typically expire automatically within 1–7 days if not captured, though release timing depends on the issuing bank. For merchants, uncaptured authorizations that are never settled result in no revenue — it's important to capture authorizations before they expire.

Batch Processing: Batch processing is the end-of-day procedure where a merchant submits all of the day's authorized (but not yet settled) transactions to their processor as a single group — called a "batch" — to initiate the actual transfer of funds. During the day, each card transaction is authorized in real time: the issuing bank approves the charge and reserves the funds, but the money doesn't actually move until the batch is submitted. Most terminals are programmed to auto-batch at a set time each night (commonly between 10 PM and midnight). Once the batch is received by the processor, it routes the transactions through the card networks, and funds are deposited into the merchant's account within 1–2 business days. Merchants who forget to batch can experience delayed funding. It's also important to batch within 24 hours of authorization — transactions held longer may be downgraded to a higher interchange rate.

Cash Discount Program: A cash discount program is a compliant pricing strategy where a merchant posts prices that include a small service fee for card payments, then offers a discount to customers who pay with cash or PIN debit. Unlike surcharging (which adds a fee on top of the listed price), cash discounting is structured so the card price is the standard price and the cash price is the discounted price — a legally important distinction. Cash discount programs are legal in all 50 states under the Durbin Amendment (2010) and are fully compliant with Visa and Mastercard rules when properly implemented with required signage and receipt formatting. Most merchants who implement a cash discount program eliminate 85–100% of their monthly processing costs. Payment USA handles the full setup: terminal programming, required signage, staff training, and ongoing compliance. The program works particularly well for restaurants, retail stores, convenience stores, salons, and service businesses.
Chargeback: A chargeback is a forced transaction reversal initiated by a cardholder's issuing bank on behalf of the customer, typically after the customer disputes a charge. Unlike a standard refund (which the merchant processes voluntarily), a chargeback bypasses the merchant entirely — the bank pulls the funds directly from the merchant's account, plus a chargeback fee of $15–$35. Chargebacks can be filed for several reasons: the customer didn't recognize the charge, the product was never delivered, the item was significantly different from what was described, or the card was used fraudulently. Merchants with a chargeback rate above 1% of total transactions risk increased processing rates, mandatory chargeback mitigation programs, or account termination. Prevention strategies include clear billing descriptors, delivery confirmation, explicit refund policies, EMV chip acceptance, and prompt customer service response to disputes.
Contactless Payment: Contactless payment is a transaction method that uses Near Field Communication (NFC) technology to allow customers to pay by tapping their card, smartphone, or wearable device against a payment terminal — no swiping, dipping, or PIN required for most transactions. Apple Pay, Google Pay, Samsung Pay, and any physical card with the contactless symbol (four curved lines) can be used for tap-to-pay. Contactless transactions typically complete in under 2 seconds, significantly faster than chip or swipe. For security, each contactless transaction generates a unique one-time cryptogram, making the data useless if intercepted. Transactions under $250 typically don't require a PIN or signature, though limits vary by issuing bank. Contactless payments have become the dominant payment method in quick-service restaurants, transit, and convenience retail. All Payment USA terminals support contactless payments out of the box.

Dual Pricing: Dual pricing is a transparent payment pricing strategy where a business displays two distinct prices for every product or service: a cash price and a card price. The card price is higher by the amount needed to cover credit card processing costs, and both prices are visible to the customer before purchase — on price tags, menus, or digital displays. This gives customers a genuine choice and eliminates the ambiguity of a service fee appearing only at checkout. Dual pricing is legal in all 50 states and fully compliant with Visa and Mastercard regulations when both prices are clearly posted prior to the transaction. It is distinct from surcharging (which adds a fee at checkout) and cash discounting (where the service fee is built into the base price). Dual pricing is particularly popular in restaurants, retail, and service businesses where transparent pricing builds customer trust.

Effective Rate: The effective rate is the single most important metric for evaluating the true cost of your credit card processing. It is calculated by dividing your total monthly processing fees (every fee on your statement — interchange, assessments, processor markup, monthly fees, per-transaction fees, and all other charges) by your total monthly card sales volume, then multiplying by 100. For example: $1,250 in total fees divided by $50,000 in card volume equals a 2.5% effective rate. A healthy effective rate for most retail and restaurant businesses is 1.8%–2.4%. If your effective rate exceeds 2.8%, you are likely overpaying. If it exceeds 3.2%, you are being significantly overcharged. Your effective rate is the only number that allows you to accurately compare one processor against another regardless of how rates are structured or quoted.
EMV (Chip Cards): EMV — which stands for Europay, Mastercard, and Visa, the three companies that created the standard — is a global payment technology that uses an embedded microchip in credit and debit cards to generate a unique, one-time cryptographic code for each transaction. This dynamic code makes it virtually impossible to create a counterfeit card from stolen transaction data, unlike magnetic stripe cards where the static data can be cloned. The United States completed its EMV migration with the October 2015 liability shift, which transferred the financial responsibility for counterfeit card fraud from banks to merchants who had not yet adopted chip card acceptance. This means if a fraudster uses a counterfeit card at a merchant who only swiped the magnetic stripe, the merchant absorbs the chargeback loss — not the bank. All Payment USA terminals support EMV chip acceptance and are configured to process chip transactions by default.

Flat-Rate Pricing: Flat-rate pricing is a credit card processing model that charges a single, fixed percentage on every card transaction, regardless of card type, transaction method, or ticket size. Square charges 2.6% + $0.10 for in-person transactions. Stripe charges 2.9% + $0.30 online. The appeal of flat-rate is simplicity — one rate, easy to predict costs. The significant disadvantage is cost. Interchange rates vary widely by card type: a standard Visa debit card might carry an interchange of 0.05% + $0.21, while a premium rewards card might be 2.3% + $0.10. With flat-rate pricing, the processor charges you the same rate regardless — pocketing a large margin on cheap transactions. For businesses processing over $10,000/month, switching to interchange-plus pricing from Payment USA typically saves $200–$800/month or more compared to flat-rate providers.

Interchange Fee: The interchange fee is the base wholesale cost of processing a credit or debit card transaction, paid by the merchant's bank (the acquiring bank) to the cardholder's bank (the issuing bank) on every transaction. Interchange rates are set by the card networks — Visa and Mastercard each publish their interchange schedules twice per year, in April and October — and are non-negotiable. Every processor in the world pays the exact same interchange rate for the same transaction type. Interchange rates vary based on several factors: card type (debit vs. credit, standard vs. rewards vs. corporate), transaction method (chip-read vs. swiped vs. keyed), merchant category code (MCC), and ticket size. Rates generally range from 0.05% + $0.21 (regulated debit) to over 3.0% (premium rewards or corporate cards). Because interchange is identical regardless of processor, the only variable in your total processing cost is the markup your processor charges on top — which is exactly why interchange-plus pricing is the most transparent model.
Interchange-Plus Pricing: Interchange-plus pricing (also called cost-plus pricing) is a credit card processing pricing model that passes the actual interchange cost directly to the merchant and adds a separate, fixed processor markup on top. On your monthly statement, you see two distinct line items for every transaction: the interchange rate (set by Visa/Mastercard, paid to the issuing bank) and the processor markup (Payment USA's fee). This complete separation is what makes interchange-plus the most transparent pricing model in the industry — you can verify every charge against the published interchange tables and confirm exactly what your processor is earning. The alternative models — tiered pricing and flat-rate — bundle or hide the interchange cost inside a single quoted rate, making it impossible to verify whether you're being overcharged. Payment USA uses interchange-plus exclusively for all merchants.

Merchant Category Code (MCC): A Merchant Category Code (MCC) is a four-digit number assigned by card networks to classify every merchant by the type of business they operate. MCCs are assigned when a merchant account is opened and are attached to every transaction the merchant processes. MCCs directly affect interchange rates — certain merchant categories receive preferential (lower) interchange rates. Supermarkets, utilities, and government agencies, for example, receive significantly lower rates than general retail or restaurants. Some high-risk categories carry higher rates and additional restrictions. Your MCC also determines whether certain card types — like government purchasing cards or corporate Level 3 cards — can be used at your business. If you believe your MCC is incorrect or suboptimal for your business type, it's worth asking your processor to review it, as an incorrect MCC can result in higher interchange costs on every transaction.
Merchant Services: Merchant services is the collective term for the full set of financial products and services that enable a business to accept and process electronic payments. A complete merchant services package typically includes a merchant account (the specialized bank account that holds card transaction funds during settlement), a payment processor (the company that routes transactions through card networks), a payment terminal or point-of-sale system (the hardware used to accept cards in person), a payment gateway (for online and card-not-present transactions), and reporting and analytics tools. Merchant services providers range from large banks and independent sales organizations (ISOs) to fintech aggregators like Square and PayPal. The key differences between providers are pricing model (interchange-plus vs. tiered vs. flat-rate), contract terms (month-to-month vs. multi-year), fee transparency, and quality of customer support. Payment USA provides full-service merchant services with interchange-plus pricing and no long-term contracts.

Payment Gateway: A payment gateway is the secure technology layer that encrypts and transmits credit card transaction data between a merchant's point of sale (website, app, or virtual terminal) and the payment processor. For e-commerce and card-not-present transactions, a payment gateway is required — it serves as the digital equivalent of a physical card terminal. The gateway encrypts the cardholder's data, performs real-time fraud screening, sends the authorization request to the card network through the processor, and returns an approval or decline response — typically in 1–3 seconds. Common payment gateways include Authorize.Net, NMI, USAePay, Stripe, and Braintree. For in-person transactions, the terminal itself handles gateway functionality. Payment USA integrates with all major gateways and helps merchants select the right one for their platform and business type.
PCI Compliance (PCI DSS): PCI DSS — the Payment Card Industry Data Security Standard — is a set of 12 technical and operational security requirements that every business accepting, processing, storing, or transmitting credit card data must follow to protect cardholder information. PCI DSS was created jointly by Visa, Mastercard, American Express, Discover, and JCB through the PCI Security Standards Council. Compliance is required by every processor's merchant agreement. Merchants are divided into four levels based on annual transaction volume. Most small businesses fall under Level 4 and are required to complete an annual Self-Assessment Questionnaire (SAQ) and, for some, quarterly vulnerability scans. Non-compliance fees charged by processors typically range from $19.95 to $99/month. Payment USA helps all merchants achieve and maintain compliance — including guided SAQ completion and quarterly security scanning — at no additional charge.
PCI Non-Compliance Fee: A PCI non-compliance fee is a monthly penalty charged by payment processors to merchants who have not completed their annual PCI DSS compliance requirements. These fees typically range from $19.95 to $99/month and are pure processor profit — they are not paid to Visa, Mastercard, or the PCI Security Standards Council. The compliance requirement itself — completing a Self-Assessment Questionnaire (SAQ) — takes most small businesses 30–60 minutes once per year and costs nothing. The processors who charge non-compliance fees often make it intentionally difficult to complete compliance, profiting from merchant confusion. Payment USA provides every merchant with guided SAQ completion and quarterly security scan assistance at no additional cost, ensuring you never pay a non-compliance fee.
Point of Sale (POS) System: A Point of Sale (POS) system is the combination of hardware and software that merchants use to process in-person transactions, manage inventory, track sales, and run their business operations. Modern POS systems go far beyond simple card acceptance — they typically include touchscreen terminals or tablets, receipt printers, cash drawers, barcode scanners, inventory management, employee scheduling, customer loyalty programs, sales reporting, and integration with accounting software. Restaurant-specific POS systems add table management, kitchen display systems, tip adjustment, and online ordering integration. Retail POS systems add product catalog management and purchase ordering. Common POS brands include Clover, Toast (restaurants), Square, Lightspeed, and Shopify POS. Payment USA provides and supports POS systems alongside payment processing, pre-programmed for interchange-plus, cash discount, or dual pricing — with no equipment leases required.

Recurring Billing: Recurring billing (also called subscription billing or automatic billing) is the automated, scheduled charging of a stored payment method at regular intervals — weekly, monthly, annually, or on a custom schedule. It is used by subscription box services, SaaS companies, gyms, property managers collecting rent, and any business with a recurring revenue model. From a technical standpoint, recurring billing requires tokenization — the original card number is replaced with a secure token that can be charged repeatedly without storing the actual card number, which significantly reduces PCI compliance scope. Payment USA's processing platform supports recurring billing with automatic card updater functionality, which automatically updates stored card tokens when a customer receives a new card number or expiration date — reducing failed payments due to expired cards.

Statement Fee: A statement fee is a monthly charge of $5–$15 that some processors bill simply for generating and delivering your monthly processing statement, whether as a paper mailing or a PDF in an online portal. This is a junk fee with no legitimate cost basis in the digital era — generating and distributing an electronic statement costs a processor virtually nothing. Statement fees are one of several common junk fees — alongside batch fees, IRS reporting fees, regulatory fees, and network access fees — that processors add to inflate monthly revenue without providing any value to the merchant. On your processing statement, statement fees may appear under various names including "statement fee," "paper statement fee," "reporting fee," or "account maintenance fee." Payment USA does not charge statement fees.
Surcharging: Surcharging is the practice of adding a fee specifically for credit card payments on top of the listed price of a product or service. Unlike cash discounting (where the service fee is built into the displayed price), surcharging adds a new line item at checkout. Surcharging is subject to strict card network rules: the surcharge cannot exceed 3% of the transaction, merchants must register with Visa and Mastercard before implementing a surcharge, clear pre-transaction disclosure signage is required, the surcharge must appear as a separate line item on the receipt, and surcharges can never be applied to debit card transactions. Additionally, surcharging is entirely prohibited in Connecticut, Massachusetts, and Puerto Rico. For these reasons, Payment USA recommends cash discount programs over surcharging for most merchants — cash discounting achieves the same cost elimination with fewer legal restrictions and less customer friction.

Tiered Pricing: Tiered pricing (also called bundled pricing or bucket pricing) is a credit card processing pricing model that groups all possible interchange categories — there are over 700 of them — into three broad tiers: qualified, mid-qualified, and non-qualified. The processor then decides, at their discretion, which tier each of your transactions falls into and charges accordingly. Processors consistently route the majority of transactions to the more expensive tiers because it maximizes their profit. In practice, 60–80% of transactions at most businesses are classified as mid-qualified or non-qualified. Rewards cards, corporate cards, keyed transactions, and online orders are routinely downgraded to non-qualified, even though they represent the majority of card spending. Tiered pricing is widely considered the least transparent and most expensive pricing model for merchants. Payment USA never uses tiered pricing.
Tokenization: Tokenization is a data security technology that replaces a customer's actual credit card number (called the Primary Account Number, or PAN) with a randomly generated, unique identifier called a token. The token has no mathematical relationship to the original card number and cannot be reverse-engineered to reveal the actual card data — making it useless to hackers if intercepted. Tokenization serves two critical purposes for merchants: (1) it enables card-on-file functionality for recurring billing and repeat customers without storing actual card numbers in your system, and (2) it significantly reduces your PCI compliance scope by ensuring sensitive cardholder data never enters or resides in your environment. Point-to-point encryption (P2PE) and tokenization together form the most effective combination of payment security available to merchants today. Payment USA's processing infrastructure uses tokenization for all stored payment credentials, fully compliant with PCI DSS requirements.

Virtual Terminal: A virtual terminal is a web-based payment application that allows a merchant to manually key in credit card numbers and process card-not-present transactions from any internet-connected computer, tablet, or smartphone — no physical card reader or POS terminal required. Virtual terminals are the primary payment tool for businesses that take phone orders (mail order/telephone order, or MOTO), invoice-based services, B2B sales, and any situation where the customer is not physically present with their card. Virtual terminals typically include secure card entry, tokenized card-on-file storage, recurring billing setup, emailed payment links, and detailed transaction reporting. Because card-not-present transactions carry higher interchange rates and elevated fraud risk, virtual terminal accounts are underwritten differently than retail accounts — getting the merchant account structured correctly from the start matters. Payment USA includes virtual terminal access with every MOTO merchant account at no extra cost.

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