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Merchant Processing Fee Library

Gateway Fee Explained

A gateway fee is a charge for the technology that securely transmits payment information between a merchant’s website, software, virtual terminal or payment application and the credit card processing network.

Gateway pricing may include a monthly fee, a per-transaction fee, a setup fee, security charges and additional fees for services such as tokenization, recurring billing, account updates or fraud screening.

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A payment gateway and a credit card processor perform different functions, even when both services are provided by the same company.

Gateway Fee at a Glance

Fee category Payment technology fee
Common billing methods Monthly and per transaction
Common environments Websites, software and virtual terminals
May be billed by Gateway, processor or software provider

Some merchants pay more than one provider for gateway-related services.

Definition

What Is a Payment Gateway Fee?

A gateway fee is a charge for using payment gateway technology to transmit transaction information from a merchant’s payment system to the processor and card networks.

The gateway acts as a secure connection between the place where payment information is entered and the systems that authorize, route and process the transaction.

Gateways are commonly used for ecommerce websites, customer payment portals, virtual terminals, electronic invoices, recurring billing systems, mobile applications and software-integrated payments.

Gateway fees are separate from interchange, card-brand assessments and processor markup, although all of these charges may appear on the same merchant processing statement.

Plain-English Definition

A payment gateway is the secure digital doorway that sends payment information from the merchant’s system into the credit card processing network.

The gateway fee is what the merchant pays to use that doorway and the technology connected to it.

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Transaction Flow

How a Payment Gateway Works

The gateway helps move payment information securely through several systems before the merchant receives an approval or decline.

Customer Enters Payment Information

Card information is entered through a website, invoice link, payment portal, virtual terminal, mobile application or integrated software system.

Gateway Secures the Data

The gateway encrypts, tokenizes or otherwise protects payment information before transmitting the request.

Transaction Is Routed

The gateway sends the authorization request to the processor, which routes it through the appropriate card network to the issuing bank.

Response Returns

The approval, decline or other response travels back through the payment system and is displayed to the merchant or customer.

CAUTION: Your Processor’s Gateway May Not Be the Best Gateway for Your Business

Many merchants use the payment gateway recommended or provided by their credit card processor. While that gateway may process transactions successfully, it may not be the best gateway for lowering the merchant’s overall interchange costs.

Processors commonly recommend gateways they own, control or financially benefit from. A processor is unlikely to recommend an outside gateway that reduces its revenue or weakens its control over the merchant relationship. This can leave the processor as the only voice in the room when the merchant evaluates payment technology.

For primarily business-to-consumer companies with little or no B2B card volume, gateway selection may have a limited effect on interchange qualification.

For B2B merchants, however, the wrong gateway can be extremely expensive. A gateway that does not properly collect and transmit the enhanced transaction data required for eligible commercial card transactions can prevent those transactions from qualifying for lower interchange categories.

Depending on the merchant’s card mix, transaction size and B2B volume, the wrong gateway can increase the company’s overall effective processing rate by more than 1%.

A gateway should not be selected solely because it is the processor’s preferred gateway. It should be evaluated based on the merchant’s transaction environment, ERP or accounting integration, B2B volume, enhanced-data capabilities and ability to support interchange optimization.

Pricing Structure

Common Types of Gateway Fees

Gateway providers may charge several different fees under one agreement.

MO

Monthly Gateway Fee

A recurring monthly charge for maintaining access to the payment gateway, regardless of transaction volume.

TX

Per-Transaction Fee

A fixed charge applied each time a transaction or authorization request is transmitted through the gateway.

SET

Setup Fee

A one-time charge for establishing the gateway account, configuring access or connecting the merchant’s system.

B

Batch Fee

A charge associated with transmitting or settling a group of transactions through the gateway.

SEC

Security Fee

A monthly or per-transaction fee for tokenization, encryption, fraud tools, PCI-related technology or data-security services.

API

Integration or API Fee

A fee for using an application programming interface, software connector, hosted payment page or custom integration.

RB

Recurring Billing Fee

A charge for storing payment tokens, scheduling payments or managing subscription and recurring transactions.

AU

Account Updater Fee

A fee for updating stored card information when an issuer replaces or changes a customer’s card details.

VT

Virtual Terminal Fee

A monthly or per-item fee for allowing employees to manually enter payments through a browser-based payment screen.

Fee Calculation

How Gateway Fees Are Calculated

The merchant’s total gateway cost may include both fixed monthly charges and variable transaction charges.

Example Gateway Fee Calculation

Assume a merchant processes 20,000 gateway transactions per month and pays:

$25 Monthly Gateway Fee
20,000 Transactions × $0.08 Per Transaction
$25 + $1,600 = $1,625 $1,625 Per Month

If the merchant is also charged a separate $0.04 processor authorization fee, the combined per-item charges increase substantially:

20,000 × $0.04 = $800 Additional Cost $2,425 Total Monthly Cost

A Few Cents Can Become a Large Annual Expense

A two-cent gateway fee increase on 20,000 monthly transactions adds $400 per month, or $4,800 per year.

Statement Identification

How Gateway Fees May Appear on a Statement

Gateway charges may appear on the processor’s statement, on a separate invoice from the gateway or inside a software provider’s monthly bill.

GW

Direct Descriptions

  • Gateway Fee
  • Payment Gateway Fee
  • Monthly Gateway Charge
  • Gateway Access Fee
  • Gateway Service Fee
TX

Transaction Descriptions

  • Gateway Transaction Fee
  • Gateway Authorization Fee
  • Electronic Transaction Fee
  • Online Transaction Fee
  • API Transaction Fee
SYS

Technology Descriptions

  • Payment Technology Fee
  • Secure Gateway Fee
  • Hosted Payment Fee
  • Integration Fee
  • Payment Platform Fee
MONTHLY GATEWAY FEE $25.00
GATEWAY TRANSACTIONS 20,000 × $0.08 = $1,600.00
GATEWAY BATCH FEES 30 × $0.25 = $7.50
TOKENIZATION SERVICE $49.00
RECURRING BILLING MODULE $75.00
TOTAL GATEWAY-RELATED FEES $1,756.50

A merchant who looks only at the $25 monthly gateway fee would miss more than $1,700 in additional monthly gateway-related charges.

Key Difference

Payment Gateway vs. Credit Card Processor

Feature Payment Gateway Credit Card Processor
Primary role Securely transmits payment data Routes and processes transactions through the payment network
Common use Websites, software, invoices and virtual terminals Card-present and card-not-present payment processing
Common fees Monthly access, transaction, security and integration fees Processor markup, authorization, monthly and service fees
May be a separate company? Yes Yes
May be bundled together? Yes. One provider may offer both gateway and processing services.

Bundled Does Not Mean Free

A provider may advertise the gateway as included while recovering the cost through higher transaction fees, monthly technology charges, software pricing or processor markup.

Technology Relationships

Gateway vs. Virtual Terminal vs. Shopping Cart

Payment Gateway

The gateway securely transmits payment information from the merchant’s system to the processing network.

Virtual Terminal

A virtual terminal is a browser-based screen employees use to manually enter card payments. It commonly connects to a gateway.

Shopping Cart

A shopping cart manages products, orders and checkout. It typically connects to a payment gateway to transmit the payment.

A merchant may pay separate fees for the shopping cart, website platform, gateway, processor and fraud-prevention service, even though all five systems participate in the same transaction.

Payment Environments

Where Payment Gateways Are Commonly Used

Ecommerce Websites

The gateway connects the online checkout experience to the processor and payment networks.

  • Retail websites
  • Business-to-business ordering portals
  • Online service businesses
  • Donation websites

Integrated Software

ERP, accounting, field-service, property-management and industry-specific software may connect to a gateway.

  • ERP systems
  • Accounting software
  • Customer management platforms
  • Industry-specific applications

Remote Payment Tools

Gateways are frequently used when the customer and merchant are not in the same physical location.

  • Virtual terminals
  • Electronic invoices
  • Payment links
  • Customer payment portals
Stacked Charges

Can One Transaction Generate Multiple Technology Fees?

Yes. The gateway fee may be only one of several technology-related charges attached to a single payment.

GW

Gateway Fee

The charge for transmitting the payment through gateway technology.

SW

Software Fee

The ERP, POS, shopping cart or industry platform may charge a transaction fee.

AU

Authorization Fee

The processor may charge separately for each authorization attempt.

SEC

Security Fee

Fraud tools, tokenization, AVS or other security services may add charges.

Watch for Duplicate Gateway Billing

Some merchants pay a gateway provider directly while also seeing a gateway fee on the processor’s statement or software invoice.

This does not automatically mean the billing is wrong, but each charge should be identified and justified.

Audit Risks

Common Gateway Fee Problems

1

Inflated Transaction Fee

The gateway or processor increases the per-item charge beyond the negotiated amount.

2

Duplicate Billing

The same gateway service appears on a processor statement and a separate provider invoice.

3

Incorrect Transaction Count

The billed gateway quantity does not match the merchant’s actual payment activity.

4

Inactive Gateway Accounts

The merchant continues paying monthly charges for old gateways, locations or merchant accounts that are no longer used.

5

Unexpected Add-On Fees

Tokenization, fraud screening, recurring billing or account updater services are added without a clear explanation.

6

Long-Term Gateway Lock-In

The merchant’s software or processor contract makes changing gateways costly or operationally difficult.

7

Hidden Processor Markup

The processor adds markup to the gateway fee without clearly identifying it as processor-controlled pricing.

8

Multiple Batch Charges

Frequent or unnecessary batch closings create additional gateway or settlement fees.

9

Paying for Unused Features

The merchant pays for recurring billing, token storage, fraud modules or API access that it does not use.

Verification Process

How to Audit Gateway Fees

Gateway charges should be reviewed across all processor statements, software invoices, gateway invoices and merchant locations.

1. Identify Every Gateway

List each gateway, virtual terminal, payment portal, ecommerce connection and software integration used by the business.

2. Collect Every Invoice

Review processor statements, gateway invoices, software bills and third-party technology invoices.

3. Locate Every Related Fee

Search for gateway, access, transaction, API, tokenization, security, batch, integration and recurring billing charges.

4. Verify Transaction Quantities

Compare billed gateway transactions with processor, website, ERP, POS and gateway reporting.

5. Compare Pricing With the Agreement

Confirm that the monthly and per-item rates match the signed pricing schedule and subsequent amendments.

6. Check for Duplicate or Unused Services

Identify inactive accounts, overlapping features, duplicate charges and technology the merchant no longer needs.

Processor Accountability

Questions to Ask About Gateway Fees

Request Specific Answers

  • Which payment gateway are we using?
  • Who owns or controls the gateway?
  • Who receives each gateway fee?
  • What is included in the monthly fee?
  • What activity triggers the transaction fee?
  • Are declined attempts also charged?
  • Are gateway fees marked up by the processor?
  • Are we paying the gateway directly?
  • Are any features billed separately?
  • Can we use a different gateway?
  • Are inactive gateway accounts still open?
  • When were the rates last increased?

“The Gateway Is Included” Is Not a Complete Answer

The provider should explain whether the cost is included in another fee, absorbed by the processor, recovered through markup or billed by a separate company.

Included services can still affect the merchant’s overall processing cost.

Cost Reduction

Can Gateway Fees Be Negotiated?

Many gateway fees are negotiable, especially for merchants with high transaction counts, multiple locations or substantial online payment volume.

The strongest opportunities often involve per-transaction pricing, monthly access charges, duplicate fees, inactive accounts and add-on services.

Merchants should also determine whether the gateway is proprietary, processor controlled or open to multiple processing providers. Technology restrictions can affect both pricing leverage and the ability to change processors.

Potential Negotiation Areas

  • Monthly gateway fee
  • Per-transaction gateway fee
  • Setup and integration fees
  • Batch fees
  • Tokenization fees
  • Recurring billing fees
  • Account updater fees
  • Fraud-screening charges
  • Inactive account fees
  • Processor gateway markup
Operational Savings

How to Reduce Gateway Costs

Consolidate Gateway Accounts

Eliminate old, duplicate or inactive accounts that continue generating monthly fees.

Negotiate Per-Item Pricing

A small reduction can create meaningful annual savings for merchants with high transaction counts.

Review Add-On Services

Confirm that tokenization, fraud tools, recurring billing and updater services are actually being used.

Verify Transaction Counts

Compare gateway billing with processor, ecommerce and software reporting.

Eliminate Duplicate Billing

Review all invoices to ensure the same gateway service is not being charged by multiple providers.

Audit Monthly

Monitor pricing changes, new technology fees and inactive services before unnecessary costs become permanent.

Frequently Asked Questions

Gateway Fee FAQ

What is a payment gateway fee?

A payment gateway fee is a charge for technology that securely transmits payment information between a merchant’s payment system and the credit card processing network.

How much does a payment gateway cost?

Gateway costs vary by provider and may include monthly fees, per-transaction charges, setup fees, batch fees, security fees and optional service charges.

Is a gateway fee the same as a processing fee?

No. A gateway fee pays for payment transmission technology, while processing fees cover transaction routing and other merchant processing services.

Do I need a payment gateway?

Businesses typically need a gateway when accepting payments through websites, virtual terminals, electronic invoices, payment portals or integrated software.

Is a gateway required for card-present transactions?

Not always. Traditional card-present terminals may connect directly through a processor, although modern cloud-based POS systems may still use gateway-like technology.

Can my processor also be my gateway provider?

Yes. Some companies provide both services, while others connect merchants to a separate third-party gateway.

Can the wrong gateway increase B2B interchange costs?

Yes. A gateway that does not properly collect and transmit enhanced transaction data may prevent eligible commercial card transactions from qualifying for lower interchange categories. For some B2B merchants, this can increase the overall effective processing rate by more than 1%.

Can I be charged a gateway fee on declined transactions?

Yes. Some gateway providers charge for each payment attempt or authorization request regardless of whether the transaction is approved.

Why am I paying both a gateway fee and an authorization fee?

The gateway and processor perform different functions. A merchant may therefore be charged separately for transmitting the transaction and obtaining the authorization response.

Can a gateway fee appear on a separate invoice?

Yes. Gateway fees may be billed by the processor, directly by the gateway or through a software provider.

Can gateway fees be negotiated?

Many monthly and per-transaction gateway charges can be negotiated, especially when the merchant has significant payment volume.

Can a merchant be charged twice for the same gateway?

Duplicate or overlapping billing can occur. Merchants should review processor, gateway and software invoices to identify every related charge.

What is a virtual terminal gateway fee?

It is a charge for using browser-based software that allows employees to manually enter and transmit customer payment information.

What is a gateway transaction fee?

A gateway transaction fee is a fixed charge applied each time a payment, authorization or other request is transmitted through the gateway.

How do I audit gateway fees?

Compare all gateway-related charges, transaction quantities and contracted rates across processor statements, gateway invoices and software bills.

Continue Learning

Related Merchant Processing Pages

Authorization Fee Explained Understand per-authorization charges → AVS Fee Explained Understand address-verification charges → Batch Fee Explained Understand batch and settlement charges → Virtual Terminal Understand browser-based payment costs → Card-Not-Present Transactions Understand online and keyed transaction costs → Processing Statement Decoder Identify charges throughout your statement → Interchange Fees Explained Understand wholesale processing costs → Credit Card Processing Audit Learn how merchant fees are verified → Merchant Fee Library Explore individual processing fees →

About weAudit

Educational content provided by weAudit.com, America’s #1 Credit Card Processing Audit Firm. Since 2009, we have helped businesses uncover hidden fees, verify pricing accuracy, negotiate fair processing agreements and protect their profits through independent merchant processing audits. Unlike credit card processors and sales organizations, we work exclusively for merchants. Protecting Merchants’ Profits Since 2009.

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This page is provided for general educational purposes about merchant processing statements and is not financial, legal, or accounting advice.

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