Beginner’s Guide to Merchant Accounts

If you’ve just registered your new business with Companies House, you’ve probably got a long to-do list. Open a business bank account? Check. Sort out insurance? Check.

But then you hit a term that sounds like jargon from the 1980s: "Merchant Account."

Many new business owners in the UK assume their standard business bank account can do it all. They think, "I have an account number and sort code; surely I can just take card payments into that?"

Unfortunately, you can’t.

Trying to run a modern business without a merchant account is like trying to run a shop without a till. You might be able to take cash, but you’re locking out the 90% of customers who want to tap their card or phone.

Here is exactly what a merchant account is, why you need one, and how to avoid getting stung by hidden fees.

What Actually Is a Merchant Account?

Think of a merchant account as a holding pen for your money.

When a customer buys a coffee from you for £3.50, that money doesn’t fly straight from their Monzo app into your Barclays business account. It has to go through a security check, a processing network, and a clearance procedure.

A merchant account is a secure, temporary account where those funds sit while the banks talk to each other. Once the transaction is verified (settled), the funds are moved from this holding pen into your actual business bank account.

In simple terms:

• Business Bank Account: Where you pay bills and staff from.

• Merchant Account: The invisible bridge that moves money from your customer’s card to your bank.

The "Aggregator" vs "Dedicated" Confusion

For years, getting a merchant account was a nightmare. You had to visit a high street bank, bring piles of paperwork, and wait weeks for approval.

Today, you have two main options, and choosing the wrong one can cost you thousands.

1. The Aggregators (The "Quick Fix")

Providers like PayPal or Square often use an "aggregated" model. They don't give you your own unique merchant account. Instead, they lump your transactions in with millions of other businesses in one giant pot.

• Pros: fast setup.

• Cons: Higher transaction fees and a higher risk of your funds being frozen if their algorithm spots something "unusual."

2. Dedicated Merchant Providers (The "Old School")

Traditional banks offer dedicated accounts with your own Merchant ID (MID).

• Pros: Lower rates for high volumes.

• Cons: Long contracts (often 18–36 months), terminal rental fees, and slow setups.

The Teya Solution: Best of Both Worlds

We believe you shouldn't have to choose between speed and security.

Teya provides a modern merchant services solution. We give you the reliability of a proper payment institution without the bureaucratic headache of a high street bank.

• Speed: You can get set up and start taking payments in days, not weeks.

• Security: You are fully compliant with FCA regulations without needing a degree in finance.

• Cash Flow: unlike many aggregators who hold your money for days, we settle your funds the next day, seven days a week.

Understanding the Costs

This is where most beginners get caught out. The headline rate isn't the only cost.

When you look at a contract, you need to understand the Merchant Service Charge (MSC). This is the percentage you pay on every transaction. However, some providers add on:

• Authorisation Fees: A flat fee (e.g., 3p) just for the terminal dialling out to the bank.

• PCI Compliance Fees: A monthly fine for not ticking a box on a form.

• Minimum Monthly Service Charges (MMSC): A fee you pay if you don't sell enough that month.

At Teya, we prefer transparency. We don't hide these costs. For a deep dive into what you should be paying, read our guide on merchant fees explained.

Do You Need One for Online Sales?

Yes. If you are selling via a website, the principle is the same, but the technology is slightly different.

Instead of a physical card machine, you use a Payment Gateway (the digital version of the card terminal) which connects to your merchant account.

Teya offers an integrated solution. You can have one account that handles your face-to-face sales in the shop and your online payment setup for your website. This keeps all your reporting in one place, making your accountant’s life much easier.

Keeping the Taxman Happy

One major benefit of a proper merchant account is the paper trail.

If you rely on cash or bank transfers, it is easy to lose track of income. A merchant account logs every single penny digitally. This automatic record-keeping is vital when it comes to your tax considerations.

Under the UK’s Making Tax Digital rules, having accurate digital records of your sales is no longer optional—it’s the law. A Teya merchant account gives you a clear, downloadable settlement report that matches your bank statement perfectly.

Getting Started

Opening a merchant account with Teya is simple, but because we are a regulated financial institution, we do need to check you are who you say you are.

What you will need:

1. ID: A passport or driving licence.

2. Business Details: Your company registration number or proof of trading.

3. Bank Details: The account where you want your money to land.

We handle the heavy lifting with the banks so you can focus on opening your doors.

Ready to get paid properly? Don't let confusing jargon slow you down. Join the thousands of UK businesses who trust Teya to handle their payments securely, fairly, and quickly.