A merchant account is the bank account that receives funds from card transactions before they settle into your business account. Every business that accepts card payments needs one — whether provided directly by a bank, bundled into a payment service provider (PSP), or set up through a dedicated merchant account provider.
This guide compares the leading merchant account providers in 2026, breaks down how pricing works, and helps you choose the right option based on your business type and transaction volume.
What Is a Merchant Account?
A merchant account is a holding account for card transaction funds. When a customer pays by card, the money doesn't go directly to your bank account. It goes to the merchant account first, where it's held until settlement — typically 1-3 business days.
There are two main models:
Dedicated merchant account — A merchant account in your business's name, provided by an acquiring bank or independent sales organisation (ISO). You go through an application and underwriting process. Pricing is typically interchange-plus.
Aggregated merchant account — A PSP like Stripe or Square processes transactions under their master merchant account. No separate application needed. Setup is faster, but you have less control over pricing and settlements.
For more on how aggregation works, see our guide to payment gateway aggregation.
Best Merchant Account Providers Compared
Here's how the leading providers compare on pricing, settlement times, and suitability:
Provider | Pricing Model | Card Fees | Monthly Fee | Settlement | Best For |
|---|---|---|---|---|---|
Stripe | Flat rate | 1.4% + 20p (UK) / 2.9% + 30¢ (US) | None | 2-7 days | Online businesses, startups, platforms |
Worldpay | Interchange-plus or flat | From 0.75% + 10p | From £19.95/mo | 1-3 days | High-volume retail and enterprise |
Adyen | Interchange-plus | Interchange + 0.10-0.25€ | None (min €120/mo processing) | Next day | Enterprise, multi-region businesses |
Square | Flat rate | 1.75% in-person / 2.5% online (UK) | None | 1-2 days | Small businesses, retail, restaurants |
Checkout.com | Interchange-plus | Interchange + 0.20% | None | Next day | High-growth online businesses |
Barclaycard | Interchange-plus or flat | From 1.6% | From £20/mo | 2-3 days | UK businesses wanting a bank provider |
PayPal | Flat rate | 2.9% + 30p (standard) | None | Instant (to PayPal balance) | Small businesses, marketplaces |
Fees shown are indicative as of February 2026 and may vary by business type, volume, and region.
How Merchant Account Pricing Works
Interchange-Plus
The most transparent model. You pay the card network's interchange fee (set by Visa, Mastercard, etc.) plus a fixed markup from your provider. Interchange rates vary by card type, region, and transaction method — typically 0.2-1.5% for UK transactions.
This is the pricing model used by Adyen, Checkout.com, and most dedicated merchant account providers.
Flat Rate
A single percentage per transaction regardless of card type. Stripe, Square, and PayPal use this model. Simpler to understand but typically more expensive at scale — the provider profits from the spread between the flat rate and the variable interchange cost.
Blended Rate
A middle ground offered by some traditional providers. Card types are grouped into bands (domestic, European, international) with different rates per band. Less transparent than interchange-plus but more predictable than full interchange passthrough.
How to Choose a Merchant Account Provider
The right provider depends on your business model:
Low volume, simple needs: Stripe or Square. No application process, flat pricing, fast setup.
High volume, cost-sensitive: Worldpay or Adyen with interchange-plus pricing. The per-transaction savings compound significantly at scale.
In-store + online: Square (integrated POS + online) or Worldpay (wide terminal range).
International: Adyen or Checkout.com for multi-currency, local acquiring in multiple regions.
Enterprise: Adyen, Worldpay, or Checkout.com — with dedicated account management and custom pricing.
Merchant Accounts vs Payment Service Providers
A common question: do you need a dedicated merchant account, or is a PSP enough?
PSPs (Stripe, Square, PayPal) — Faster setup, no application. But you share a merchant account with other businesses, which means less pricing flexibility and a small risk of account holds or freezes during disputes.
Dedicated merchant accounts (Worldpay, Barclaycard) — Your own account, your own pricing. Longer setup (days-weeks), underwriting required. Better for high-volume or high-risk businesses.
For most small and medium businesses, a PSP is sufficient. For businesses processing over £50,000/month, a dedicated merchant account with interchange-plus pricing typically saves money.
What About Platforms?
If you're a software platform — not a merchant — the merchant account question looks different. Your customers need merchant accounts. You need infrastructure that works with whatever merchant account or PSP each of your customers uses.
This is where a payment layer fits. Instead of choosing one PSP and forcing all your customers onto it, you integrate once and support 40+ payment providers — letting each customer use their existing merchant account or PSP.
For more on how platforms approach payments, see What Is Embedded Payments? and How to Choose a Payment Platform.
FAQ
How long does it take to set up a merchant account?
PSPs like Stripe and Square: minutes to hours. Dedicated merchant accounts with banks or ISOs: 3-10 business days including underwriting.
Can I have multiple merchant accounts?
Yes. Many businesses use multiple providers — one for online, one for in-store, or different providers for different regions. This is standard for mid-market and enterprise businesses.
What's the difference between a merchant account and a payment gateway?
A payment gateway authorises transactions — it's the technology that connects to card networks. A merchant account holds the funds. Many modern providers (Stripe, Adyen) bundle both together, so you don't need to set them up separately.
Do I need a merchant account if I use Stripe?
No. Stripe provides an aggregated merchant account as part of its service. You don't need a separate one. However, for very high volumes, a dedicated merchant account with interchange-plus pricing may be more cost-effective.
Looking for payment services? Compare payment providers or browse payment gateways to find the right fit for your business.