Payment Education

Credit Card Surcharge Guide

Everything small business owners need to know about surcharging, convenience fees, and dual pricing in 2026.

What Is a Credit Card Surcharge?

Customer uses smartphone for contactless payment on a POS terminal. AGMS provides secure mobile payment processing.

A credit card surcharge (also called a surcharge fee or checkout fee) is an extra charge added to a transaction when a customer pays with a credit card. The surcharge covers the merchant’s cost of accepting the credit card payment — typically 1.5% to 3% of the transaction amount.

Instead of absorbing the processing fee (which ranges from 1.5% to 3.5% depending on your processor), the merchant passes that cost directly to the card-paying customer. Customers who pay with cash, debit, or check pay the standard listed price.

Example: A $100 purchase with a 3% surcharge would cost $103 when paid by credit card, or $100 when paid by cash or debit.

Surcharge vs Convenience Fee vs Dual Pricing

These terms get confused constantly. Here’s the actual difference:

Credit Card Surcharge

  • Extra fee added only to credit card transactions
  • Cannot surcharge debit cards (even if run as credit)
  • Capped at 3% or your cost of acceptance — whichever is lower
  • Must register with Visa and Mastercard before implementing
  • Not legal in all states — banned in Connecticut, Massachusetts, and Puerto Rico
  • Must be clearly disclosed at point of entry, point of sale, and on the receipt

Convenience Fee

A convenience fee is a charge for using an alternative payment channel — NOT the same as a surcharge.

  • Only applies when a customer uses a non-standard payment method (e.g., paying a utility bill by phone with a credit card instead of by mail)
  • Must be a flat dollar amount (not a percentage)
  • Cannot be charged for in-person, face-to-face transactions
  • Commonly used by government agencies, utilities, and schools
  • Not the same as surcharging — most small businesses cannot legally charge a “convenience fee” on in-store purchases

Cash Discount / Dual Pricing

Dual pricing (also called cash discount) is the simplest and most compliant option for most businesses:

  • Your listed price is the cash price
  • Credit card customers pay a slightly higher price (service fee added)
  • Legal in all 50 states
  • No registration with card brands required
  • Applies to all card types including debit
  • Clear signage at register and entrance

This is what AGMS recommends for most businesses. It achieves the same goal as surcharging ($0 processing cost) with fewer restrictions. Learn more about our $30/month cash discount program →

Is Credit Card Surcharging Legal?

Yes — credit card surcharging is legal in most of the United States as of 2026. However, there are important restrictions:

Where Surcharging Is Banned

  • Connecticut — surcharging prohibited by state law
  • Massachusetts — surcharging prohibited by state law
  • Puerto Rico — surcharging prohibited

All other states allow surcharging, but some have specific disclosure and cap requirements.

Surcharging Rules (Visa/Mastercard)

  • Maximum surcharge: 3% or your cost of acceptance — whichever is lower
  • Registration required: You must notify Visa and Mastercard at least 30 days before implementing surcharges
  • Debit cards excluded: You cannot surcharge debit card transactions, even when processed as credit
  • Disclosure required: Must post signage at the entrance, at the register, and on the receipt
  • Same surcharge for all credit cards: You can’t charge different surcharges for Visa vs Mastercard vs Amex

Why Cash Discount Is Easier

Cash discount / dual pricing avoids most of these complications:

  • No card brand registration
  • Legal in ALL states (including CT and MA)
  • Applies to all card types including debit
  • Simpler compliance — just clear signage

See AGMS Cash Discount — $30/month, $0 processing →

How Much Can You Charge as a Surcharge?

The surcharge amount depends on your processor and state:

  • Maximum allowed: 3% or your actual cost of card acceptance — whichever is lower
  • Typical range: 2.5% to 3.0%
  • Must be the same for all credit card brands — you can’t charge 2% for Visa and 3% for Amex

Real-world impact on customers:

  • $50 purchase → $1.25 to $1.50 surcharge
  • $100 purchase → $2.50 to $3.00 surcharge
  • $500 purchase → $12.50 to $15.00 surcharge

Most customers don’t object to small surcharges, especially when clearly disclosed. Gas stations have done this for years.

How to Add Surcharging or Dual Pricing to Your Business

Option 1: Cash Discount Through AGMS (Recommended)

The fastest, simplest, and most compliant way to eliminate processing fees:

  1. Sign up for AGMS Cash Discount — $30/month flat
  2. Receive your free terminal — pre-programmed for dual pricing (PAX, Dejavoo, or Clover)
  3. Post the signage — AGMS provides compliant signs for your entrance and register
  4. Start accepting payments — the terminal automatically applies correct pricing

Setup takes 2-3 business days. No coding, no configuration, no registration paperwork.

Option 2: Traditional Surcharging

If you specifically need surcharging (credit-only fee, not dual pricing):

  1. Notify Visa and Mastercard 30 days before start date
  2. Notify your payment processor (acquirer)
  3. Configure your terminal for surcharge calculations
  4. Post disclosure signage (entrance, register, receipt)
  5. Train staff on handling customer questions
  6. Ensure debit transactions are excluded from surcharges

AGMS can help with either approach. Contact us for guidance →

Which Businesses Use Surcharging or Dual Pricing?

Food trucks at a lively event. AGMS supports mobile businesses with seamless payment processing.
  • Gas stations — the original dual pricers. Cash vs credit pricing at the pump has been normal for decades.
  • Restaurants & bars — high volume, thin margins. A 2-3% fee on every check adds up to thousands per month.
  • Convenience stores — small average ticket sizes where flat-rate processing (like Square’s 2.6% + 10¢) eats a huge percentage of each sale.
  • Auto repair shops — high-ticket invoices ($500-$5,000+) where 3% surcharge is significant for both merchant and customer.
  • Contractors & home services — plumbing, electrical, HVAC. Large invoices paid by credit card cost the business hundreds per job.
  • Medical & dental offices — patient payments of $100-$5,000+ where processing fees impact the bottom line.
  • Professional services — attorneys, accountants, consultants billing $1,000+ per invoice.

Can You Surcharge Debit Cards?

No. Under card brand rules and federal law (the Durbin Amendment), you cannot surcharge debit card transactions — even when the customer selects “credit” at the terminal.

Your terminal must be able to distinguish between credit and debit cards and only apply the surcharge to credit transactions. This is one of the technical complexities of traditional surcharging.

Cash discount / dual pricing is different: With AGMS’s dual pricing program, the service fee applies to ALL card transactions (credit and debit), because the mechanism is a discount for cash — not a surcharge on cards. This is a key legal distinction and one reason cash discount is simpler to implement.

If you want to cover the cost of ALL card types (including debit), AGMS Cash Discount is the right choice.

Understanding Credit Card Processing Fees

Mobile contactless payment completed via payment terminal.

To understand surcharging, you need to understand what you’re paying:

Interchange Fee (1.5% - 2.5%)

Paid to the card-issuing bank (the customer’s bank). This is the largest component and is set by Visa/Mastercard. Varies by card type — rewards cards cost more than basic cards.

Assessment Fee (0.13% - 0.15%)

Paid to the card network (Visa, Mastercard, Amex). Small but unavoidable.

Processor Markup (0.1% - 1.0%+)

Paid to your payment processor. This is where you have leverage — and where AGMS saves you money.

  • Square: 2.6% + 10¢ flat (no breakdown, no negotiation)
  • Stripe: 2.9% + 30¢ flat (same — take it or leave it)
  • AGMS: Interchange-plus pricing — you see the actual cost, and the markup is negotiable based on volume

Or skip all of it: AGMS Cash Discount — $30/month, $0 processing →

Frequently Asked Questions

What is a surcharge fee on a credit card?

A surcharge fee is an extra charge (typically 1.5%-3%) added to a credit card transaction to cover the merchant’s processing cost. The customer pays the surcharge on top of the purchase price when using a credit card. Cash and debit payments are not surcharged.

What is a convenience fee?

A convenience fee is a flat charge for using a non-standard payment channel — like paying a bill by phone or online instead of by mail. It’s NOT the same as a surcharge. Most small businesses cannot legally charge a “convenience fee” on in-store transactions.

Is it legal to charge customers a credit card fee?

Yes, in most states. Credit card surcharging is legal in 48 states. Connecticut, Massachusetts, and Puerto Rico prohibit surcharging. Cash discount / dual pricing is legal in all 50 states.

Are debit card surcharges legal?

No. You cannot surcharge debit card transactions under federal law and card brand rules. However, cash discount programs (like AGMS’s $30/month plan) can apply a service fee to all card types including debit, because the mechanism is a cash discount — not a surcharge.

How much can you surcharge a credit card?

The maximum surcharge is 3% or your actual cost of card acceptance, whichever is lower. The surcharge must be the same for all credit card brands.

What is the difference between a surcharge and dual pricing?

A surcharge adds a fee only to credit card transactions and requires card brand registration. Dual pricing displays two prices — a lower cash price and a higher card price — and is legal in all 50 states with no registration needed. AGMS recommends dual pricing for simplicity and compliance.

How do I stop paying credit card processing fees?

The most effective way is a cash discount or dual pricing program. AGMS offers a $30/month plan with $0 processing fees — the service fee is passed to card-paying customers. You keep 100% of every sale.

Ready to Eliminate Processing Fees?

AGMS Cash Discount Program: $30/month, $0 processing, free terminal, no contracts.

Get Started with Cash Discount → | Contact AGMS →