What are credit card processing fees?

Credit card processing fees are the charges deducted from each card transaction to pay banks, card networks, and payment processors. Every time a customer taps or swipes, multiple parties work behind the scenes to authorize and settle the transaction.

This system is commonly known as the four-party payment model, which includes:

• Issuing bank: The bank that issued the customer's card (e.g., Chase, Citi)

• Acquiring bank: The merchant's bank that receives the payment

• Card network: The infrastructure providers (Visa, Mastercard, Discover, or American Express)

• Payment processor: The company that provides payment technology and services to the merchant

The three pillars of credit card processing fees

When a transaction occurs, the total fee involves three distinct layers:

Interchange fees are the largest component, set by card networks and paid to the issuing bank to cover risk and administrative costs. They are non-negotiable and vary based on card type (e.g., a basic debit card vs. a high-end rewards card).

Assessment fees are smaller fees paid directly to card networks like Visa or Mastercard for using their infrastructure. Like interchange fees, these rates are fixed and non-negotiable.

Processor markup is the fee charged by the merchant's payment provider (like Square, Stripe, or Helcim). This covers customer support, hardware, and the software that routes the payment. This is the primary negotiable part of a credit card processing fee.

Additional fees to watch for

Beyond the core fees, some processors charge additional costs that can impact your total processing expense:

• PCI compliance fee: Security compliance costs

• Chargeback fee: A fee (usually $15 to $25) incurred when a customer disputes a charge

• AVS (Address Verification Service): Small per-transaction fees ($0.01 to $0.05) for verifying billing addresses on online orders

• Early termination fee (ETF): Penalties for canceling long-term contracts

Many modern payment platforms eliminate or reduce these fees with simpler, transparent pricing.

How credit card processing fees work

When a customer makes a purchase, the transaction follows several steps:

1. The payment terminal or gateway sends transaction details to the processor.

2. The processor forwards the request to the card network.

3. The issuing bank approves or declines the transaction.

4. Approved funds are held and later settled.

Settlement usually occurs within 24 to 48 hours. During this process, interchange, assessment, and processor fees are deducted before funds reach the business's bank account.

Average credit card processing fees by network

Credit card processing fees vary by network and card type. Below are typical ranges businesses should expect when budgeting.

American Express has become more competitive recently through its "OptBlue" program, which allows processors to offer Amex at more flexible rates for small businesses.

Factors that affect credit card processing fees

Several variables influence how much a business pays per transaction:

• Card-Present (CP) vs. Card-Not-Present (CNP): In-person chip transactions are the most secure and carry the lowest rates. Online, phone, or "keyed-in" transactions (CNP) have higher rates due to increased fraud risk.

• Debit card vs. credit card: Debit cards are cheaper to process than credit cards because they carry lower risk for banks. And thanks to the Durbin Amendment, interchange fees on debit cards from large, regulated banks are capped (roughly $0.21 + 0.05%).

• Industry risk: High-risk businesses like travel agencies, subscription services, or online gaming pay more because they face higher chargeback rates. Processors view these businesses as riskier investments.

• Transaction volume: Businesses processing higher monthly volumes often qualify for better rates. A business doing $50,000 per month in credit card sales pays less per transaction than one doing $5,000.

• Average transaction size: The flat fee portion matters more on small transactions. On a $10 transaction with a $0.10 flat fee, that fee represents 1% of the sale. On a $100 transaction, it's only 0.1%.

• Network: American Express traditionally charges higher fees than Visa or Mastercard, though the gap has narrowed in recent years.

Credit card payment processing methods

Choosing the right pricing model can save a business thousands of dollars annually. Each model has pros and cons depending on your business type.

Flat-rate pricing

Flat-rate pricing charges the same percentage for every transaction, regardless of card type. Services like Square and Stripe popularized this model.

• Typical cost: 2.6% – 2.9% + $0.10 – $0.30 per transaction

• Best for: Small businesses or those with low monthly volume (commonly under $5,000 to $10,000)

• Pros: Predictable, simple statements, no monthly fees

• Cons: Same rate regardless of card type or risk level; often costs more overall than other models

Many systems with built-in payment processing use this model because it's straightforward and predictable.

Interchange-plus pricing

Interchange-plus pricing separates the non-negotiable costs from the processor's markup. Businesses pay the actual interchange fee plus a fixed percentage and transaction fee.

• Typical cost: Interchange + 0.20% – 0.50% + $0.10 – $0.20 per transaction

• Best for: Established and high-volume businesses

• Pros: Most transparent pricing model

• Cons: Statements can be complex.

Subscription or membership pricing

Some processors use a variable of Interchange-Plus where you pay the raw cost of interchange plus a flat monthly membership fee—usually $50 to $199 per month—and a small per-transaction cent fee.

• Best for: High-volume businesses ($20,000+ per month)

• Pros: Lowest per-transaction costs

• Cons: Monthly fee makes it risky for low volume

Tiered pricing

Tiered pricing groups transactions into qualified, mid-qualified, and non-qualified categories. Each tier carries a different rate. A processor might quote 1.69% for qualified transactions but then charge 2.49% for mid-qualified and 3.49% for non-qualified. Most experts do not recommend this model.

• Pros: Initial quoted rates may be competitive and cheaper than flat rate pricing

• Cons: Lacks transparency compared to other models. Processors often "downgrade" transactions to higher-cost tiers without explanation.

Built-in payment processing explained

Built-in payment processing platforms combine software and payments into one system. Systems with integrated payment processing often use flat-rate pricing, though some platforms offer hybrid or interchange-plus models.

These solutions typically offer:

• Simplified, consolidated pricing

• Unified reporting

• Faster onboarding

• Reduced technical complexity

For professionals, this integration means you can focus on serving clients rather than troubleshooting payment processing issues.

FAQs about credit card processing fees

How much are credit card processing fees?

Credit card processing fees range from 1.5% to 3.5% per transaction on average, plus a small flat fee, usually $0.10 to $0.30. The exact amount depends on your business type, transaction volume, how you process cards, and which pricing model you use.

In-person debit card transactions cost the least, while online credit card transactions and premium rewards cards cost the most. High-volume businesses usually qualify for lower rates, while low-volume or high-risk businesses pay more.

Are credit card processing fees tax deductible?

Yes, credit card processing fees are tax deductible as "ordinary and necessary" business expenses. Keep your monthly statements as documentation and consult with a tax professional to ensure you're categorizing and deducting these expenses correctly for your specific business structure.

Can you negotiate credit card processing fees?

You can negotiate the processor markup portion of your fees, but not the interchange fees set by card networks. If you process significant monthly volume, typically $10,000 or more, you have more leverage to negotiate lower rates.

How to get the lowest credit card processing fees

While some fees are fixed, businesses can take steps to reduce overall processing costs.

• Encourage debit card usage: Since debit interchange is capped, these are your most profitable transactions.

• Batch out daily: Ensure you settle your terminal daily to avoid higher "late settlement" interchange rates.

• Use modern hardware: EMV (chip) and contactless payments are more secure and help prevent costly fraud-related chargebacks.

• Review statement regularly: Review statements monthly for unusual charges or rate increases. Processors sometimes raise rates quietly. Question any fees that seem unfamiliar or excessive.

• Consider cash discounts or surcharging: In states where it's legal, businesses can use credit card surcharging to pass processing costs directly to customers who pay with credit cards. However, listing a higher price and offering a discount for cash/debit is generally more widely accepted.

Always follow state laws and card network rules when applying surcharges.

Choosing the right payment solution

When selecting a payment processor, the lowest rate isn't always the best value. Reliability, service, and transparency matter just as much. Follow these guidelines to make the best choice for your business:

• Consider business needs carefully. In-person processing, online payments, or both? Phone orders? Invoicing capabilities or recurring billing? The right solution matches these specific requirements.

• Read reviews from other business owners in the same industry. Processing experiences vary widely by business type. A processor that works great for restaurants might be terrible for e-commerce.

• Look at contract terms closely. Month-to-month agreements give flexibility to switch if needed. Multi-year contracts might offer better rates but can trap businesses if the service disappoints.