A payment gateway moves transaction data, while a merchant account holds the funds from card payments before they reach your business bank account. They aren’t interchangeable, and most businesses that sell online need both. However, the confusion is understandable because many payment providers bundle the gateway and merchant account into a single product, and often a single bill. As a result, merchants may not realize they’re separate parts of the payment process until they run into an integration issue, unexpected fee, or account problem.
That’s why it’s important to fully grasp the difference between a merchant account and a payment gateway. When you understand their distinctions, you can make better decisions about how you accept and manage payments. Below, we’ll break down the differences between merchant accounts and payment gateways, how they work together, what each costs, when you need one or both, and how to choose the right setup for your business.
Key Takeaways
- Payment gateways and merchant accounts serve different functions. A payment gateway securely moves transaction data for authorization, while a merchant account holds card payment funds during settlement.
- In-person-only businesses may not need a payment gateway. If you only accept card-present payments, you’ll typically need a merchant account but not a gateway.
- Payment aggregators, which fall under the broader umbrella of payment service providers (PSPs), allow businesses to process payments through a shared merchant account rather than setting up a dedicated one. That means easier setup in exchange for tradeoffs such as higher costs at scale and reduced account stability.
- Using separate providers can mean paying two sets of fees. Your merchant account and gateway may each carry their own monthly and per-transaction charges.
- Bundling can simplify payment processing, but transparency matters. Getting your merchant account and gateway from the same provider can reduce billing and support complexity, provided the pricing is clearly itemized.
The Key Differences Between a Merchant Account and a Payment Gateway
Before breaking down the differences, it helps to see how the two relate. The merchant account is the constant: any business that accepts card payments under its own account needs one. The payment gateway is conditional; you add it only when you accept card-not-present payments. For many businesses, especially those selling online, the two work together as parts of the same payment process.
| Merchant account | Payment gateway | |
| What it does | Holds card payment funds during settlement. | Securely transmits transaction data for authorization. |
| Where it sits in the transaction | Receives funds before they move to your business bank account. | Connects the checkout or payment interface to the payment processor. |
| Who provides it | An acquiring bank, usually through a payment processor or merchant services provider. | A payment gateway or payment services provider. |
| When you need it | When accepting card payments under your own merchant account. | When accepting card-not-present payments, such as online or over the phone. |
| How it’s priced | Typically includes processing and recurring account fees. | Typically includes monthly and/or per-transaction gateway fees. |
| What happens without it | You need a PSP or aggregator that processes payments through a shared merchant account. | You generally can’t securely accept card-not-present payments. |
The first distinction is function. A payment gateway deals with information: it securely sends the customer’s payment details through the payment process. A merchant account deals with money: it holds the proceeds from card transactions during settlement before they’re deposited into your business bank account.
The second is necessity. A merchant that only accepts cards in person may need a merchant account, but not a payment gateway. Once you accept payments online, over the phone, or through other card-not-present channels, you will need both.
Then there’s cost structure. Merchant accounts and payment gateways can each come with their own recurring and transaction-based fees. If you get them from separate providers, you may pay and manage two sets of charges, contracts, and services. Bundling them through one provider can simplify that structure, but you still need to understand how each component is priced.
Ultimately, deciding between a payment gateway or a merchant account is a false choice for most merchants. The more useful question is whether your business needs both and, if it does, whether you should get them from the same provider.
To make that decision, it helps to understand exactly what each component does. Let’s start with the merchant account.
What Is a Merchant Account?
A merchant account is a specialized bank account that temporarily holds funds from card transactions during clearing and settlement before they’re transferred to your business bank account. In the U.S., merchant accounts are issued by acquiring banks, typically through a payment processor or merchant services provider.
Each merchant account comes with a unique merchant ID (MID) that identifies the business within the payment ecosystem. If you want to accept card payments under your own dedicated account rather than through an aggregator’s shared account, you’ll need a merchant account.
What Is a Payment Gateway?
A payment gateway is the technology that captures and encrypts card data at checkout and securely transmits it to the payment processor for authorization. Unlike a merchant account, which handles funds, a payment gateway handles transaction data.
That functionality is increasingly important as more retail activity moves online. According to the U.S. Census Bureau, eCommerce accounted for 17.1% of total U.S. retail sales in the second quarter of 2026, with eCommerce sales growing 12.2% year over year.
A gateway is required for card-not-present transactions, including payments made online or over the phone, because the physical card isn’t being read directly at the point of sale.
How a Merchant Account and Payment Gateway Work Together
Here’s an analogy that illustrates how a merchant account and a gateway work together. You can think of the payment gateway as the front door of a transaction, while the merchant account is the vault where the funds land before reaching your business bank account.
Let’s take a closer look at how the two function together from checkout to settlement:
- The customer submits their card information. At checkout, the customer enters their payment details.
- The payment gateway encrypts and transmits the data. The gateway securely sends the transaction information to the payment processor.
- The transaction is routed for authorization. The processor sends the request through the card network to the customer’s issuing bank, which approves or declines the transaction.
- The funds settle into the merchant account. Once an approved transaction clears, the funds are deposited into this account.
- The money reaches your business bank account. The settled funds are then transferred from the merchant account to your designated business bank account.
Do they have to come from the same provider?
No. You can get your payment gateway and merchant account from separate providers, though most merchants are better served by getting both from the same provider. Using separate providers gives you more flexibility to choose the gateway and merchant account that best fit your needs. That said, you’ll have to deal with more complexity: two contracts, two bills, two support relationships, and you’ll be responsible for ensuring the systems integrate properly.
A bundled provider keeps things simple with a single contract and a single point of accountability if something goes wrong. That convenience is most valuable when the provider keeps gateway and merchant account pricing itemized and transparent, so you can still see exactly what you’re paying for.
Do You Need Both a Merchant Account and a Payment Gateway?
Not every business needs both components. It depends largely on how and where you accept payments. Let’s look at a few different scenarios:
- If you only accept payments in person: You need a merchant account to accept card payments under your own account, but you generally don’t need a payment gateway when the physical card is present.
- If you only sell online, over-the-phone, or via invoice: You need both a merchant account and a payment gateway to process these card-not-present transactions.
- If you sell both in person and online: You need both. In this case, how well your gateway and merchant account integrate is especially important for keeping payments, reporting, and reconciliation connected across channels.
- If you’re starting out or process very little volume: A payment service provider (PSP) or aggregator can provide the functionality of both without requiring you to open a dedicated merchant account.
Can you use a payment gateway without a merchant account?
Yes, you can use a payment gateway without a merchant account. A PSP, or payment aggregator, lets you accept payments without your own dedicated merchant account by processing transactions through a shared master merchant account linked to a gateway.
This route can make sense for new or low-volume businesses because setup is typically faster, and you don’t need your own merchant ID. The tradeoff is that flat-rate credit card processing can become more expensive as your processing volume grows. Because you’re operating under a shared account, you may face a greater risk of unexpected holds or account freezes.
Cost is often a major factor in deciding between these setups, so let’s look at what merchant accounts and payment gateways typically charge.
What Merchant Accounts and Payment Gateways Cost
Merchant accounts and payment gateways are priced differently, even when the same provider packages them together. When you get them from separate providers, some costs can also show up twice, so it’s vital to look beyond the headline processing rate when comparing options.
Merchant account fees
Merchant account costs generally fall into two categories: transaction-based and recurring fees. For each transaction, you may pay interchange, which goes to the card-issuing bank; assessment fees, which are charged by the card networks; and a processor markup, which is what your payment processor charges for its services.
To put the scale of interchange into perspective, U.S. banks collected nearly $66 billion in credit and debit card interchange fees in 2025, according to the Federal Reserve Bank of St. Louis, up from $64 billion in 2024 and $52 billion in 2021.
Your statement may also include recurring charges such as a monthly account fee, statement fee, PCI compliance fee, or monthly minimum. Taken together, these costs determine your effective processing rate, i.e., the percentage of your total card sales that you actually pay in processing fees.
Because the effective rate varies significantly by card mix, transaction type, processing volume, and pricing model, there isn’t one universal rate that applies to every merchant. For a deeper look at the individual charges and how to evaluate them, see our guide to merchant account fees.
Payment gateway fees
Payment gateway fees are separate from the costs of processing the transaction itself. Depending on the provider, you may pay a monthly gateway fee and, in some cases, a one-time setup fee.
Gateways may also charge a flat per-transaction fee each time a payment passes through. Other situational charges can include batch fees or additional fees for services such as tokenization and fraud-prevention tools. The key distinction is that these gateway charges can sit on top of your merchant account and processing costs rather than being included in them.
What you end up paying twice for
Using separate providers for your merchant account and payment gateway can give you more choice, but it can also create overlapping costs.
For example, you may pay a monthly account fee to your merchant account provider and another monthly fee to your gateway provider. Depending on how the services are structured, you could also encounter separate transaction charges and, in some cases, PCI-related fees from both sides.
The duplication isn’t only financial. Two providers also mean two billing relationships and two support teams. If a payment fails or an integration stops working, determining which provider is responsible can add another layer of complexity.
That’s why comparing payment setups requires looking at the total cost and structure rather than any single advertised rate. It’s also important to understand where each provider’s responsibilities begin and end, particularly regarding payment security and PCI compliance.
Security and Compliance Requirements for Each
Regardless of whether your merchant account and payment gateway come from the same provider, PCI DSS applies to any business that accepts card payments. That said, certain security and compliance responsibilities fall to the gateway, while others fall to the merchant account provider. And remember that you, as the merchant, also have PCI compliance requirements.
On the payment gateway side, security centers around protecting card data as it moves through the transaction. That includes encrypting data in transit, using tokenization to replace sensitive card details with non-sensitive tokens, and supporting measures such as 3D Secure for online transactions.
On the merchant account side, the focus is on underwriting and ongoing risk management. Merchants must accurately represent their business and processing activity and remain within established chargeback, fraud, and other risk thresholds.
Merchants have responsibilities of their own. Depending on your setup, these can include completing the appropriate Self-Assessment Questionnaire (SAQ), maintaining secure networks and systems, and ensuring employees follow proper procedures when handling payment information.
Importantly, using a secure gateway doesn’t make PCI compliance disappear. Features such as tokenization can reduce the amount of sensitive card data your systems handle, and potentially reduce your PCI scope, but your business still has compliance obligations.
How to Choose the Right Setup for Your U.S. Business
Choosing among a merchant account, a payment gateway, or a bundled solution is less about the individual components and more about finding a provider model that fits how your business accepts payments. As you compare your options, work through this checklist:
- Map how you accept payments. Consider where customers pay you today (e.g., in-store, online, over the phone, or by invoice) and any channels you expect to add over the next 12 months.
- Understand the pricing model. Confirm whether you’re being offered interchange-plus, flat-rate pricing, or a different pricing model, and check whether gateway fees are included or itemized separately.
- Review the contract terms. Look at the contract length, early termination fees, and any automatic renewal clauses, so you know exactly what you’re committing to.
- Check your integrations. Make sure the setup is compatible with the POS system, eCommerce platform, accounting software, and other tools your business relies on.
- Clarify PCI compliance responsibilities. Ask what your provider handles, what remains your responsibility, and whether PCI compliance comes with an additional fee.
- Compare funding timelines. Find out how quickly funds move from completed transactions to your business bank account. Settlement and funding speeds can vary considerably between providers.
- Evaluate the support model. Confirm whether support is U.S.-based, when it’s available, and whether you’ll have access to a real person when you need help resolving payment or account issues.
The right setup should support both how you sell today and where your business is headed, without introducing unnecessary fees, restrictions, or complexity.
Signs You Have Outgrown an Aggregator
Payment aggregators can be a practical choice for new and low-volume businesses, but the model may become less suitable as your processing needs grow. Signs it may be time to consider a dedicated merchant account include:
- Your effective processing rate keeps rising. Flat-rate pricing is simple, but as your monthly processing volume increases, it can become more expensive than other pricing models.
- Account holds or delayed payouts are disrupting cash flow. Frequent holds, unexpected payout delays, or new reserve requirements may signal that you need a payment setup with more predictable account terms.
- You need greater account stability. A dedicated merchant account involves underwriting your individual business rather than processing under an aggregator’s shared master account, which can provide greater predictability as your business grows.
- You’ve outgrown the available integrations or reporting. Your business may need POS, eCommerce, accounting, reporting, or other capabilities that your aggregator doesn’t support.
If these issues are becoming regular pain points, it may be worth exploring a dedicated account. Learn more about how to get a merchant account and what to consider when making the switch.
Merchant Accounts and Payment Gateways at Kurv
The decision isn’t simply whether you need a merchant account or a payment gateway, it’s whether the pricing and terms remain clear once both are part of your payment setup. Kurv provides a dedicated merchant account with a payment gateway and virtual terminal included, structured under itemized pricing and flexible terms. Whatever provider you choose, make sure you understand which fees are itemized, what your contract commits you to, and which PCI compliance responsibilities fall to you versus your provider before signing.
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Frequently Asked Questions
Is a payment gateway the same as a merchant account?
No. A payment gateway securely captures and transmits transaction data for authorization. At the same time, a merchant account holds the funds from card transactions during settlement before they’re transferred to your business bank account. Most businesses that accept online payments need both.
What is considered a merchant account?
A merchant account is a specialized bank account issued by an acquiring bank that temporarily holds funds from card transactions during clearing and settlement. A dedicated merchant account also comes with its own merchant ID (MID), which identifies your business within the payment processing system.
Can you accept payments without a merchant account?
Yes. A payment service provider (PSP) or aggregator can let you accept card payments under its shared master merchant account rather than requiring your own dedicated account. This can simplify setup for new or low-volume businesses, but flat-rate pricing may become more expensive at higher volumes, and shared accounts can offer less account stability.
Do a payment gateway and merchant account have to come from the same provider?
No. You can use separate providers for your merchant account and payment gateway, as long as the two systems are compatible. Bundling them with a single provider can simplify integration, reduce the risk of overlapping fees, and give you a single point of contact when payment issues arise.
Are there monthly fees for a merchant account or a payment gateway?
Yes, both merchant accounts and payment gateways commonly carry monthly fees, although the exact fee structure depends on the provider. If you get them from separate providers, you may pay two monthly charges in addition to transaction-based fees and other applicable costs.
What are typical transaction fees for a merchant account vs. a payment gateway?
Merchant account transaction costs typically consist of interchange, card network assessments, and the payment processor’s markup. Payment gateways may charge a separate flat fee for each transaction, which generally sits on top of the underlying payment processing costs.
