What it means
Whenever a customer uses a card to buy something from your business, multiple institutions work behind the scenes to make the transaction happen securely. These include the bank that issued your customer's card, the network provider like Visa or Mastercard, and your own merchant service provider.
Processing fees are the combined costs charged by these entities for their services. For non-finance managers, understanding these fees is vital because they directly impact your profit margins on every single sale you make.
In practice, these fees are usually charged as a combination of a small fixed amount per transaction and a percentage of the total sale value. While a fee of two percent might sound small, it adds up quickly across thousands of transactions over a financial year.
If you run a business with tight profit margins, high processing fees can quietly erode your earnings unless you factor them into your pricing strategy or negotiate better rates with your provider. Businesses typically account for processing fees as an operating expense on their income statement, often grouped under merchant fees or bank charges.
Managing these costs effectively involves shopping around for different payment processors, encouraging customers to use lower-cost payment methods where appropriate, or setting minimum transaction amounts for card usage to avoid losing money on very small purchases.
In practice
Real-world examples.
Example
Your boutique coffee shop sells a latte for £4 using a card reader. Your payment processor charges a fee of 1.75 percent plus 10 pence per transaction, meaning you pay 17 pence to process the sale, leaving you with £3.83.
Example
An online retail SME sells a jacket for £100 through its website. Because online card payments carry a higher risk of fraud, the gateway fee is 2.5 percent plus 20 pence, resulting in a total processing fee of £2.70 for that order.
Example
A freelance graphic designer invoices a corporate client for £2,000. The client pays via an online invoicing platform that charges a flat 1.5 percent fee for credit cards, resulting in a £30 deduction from the final payment.
Think of it
“Processing fees are like the toll charges you pay to use a private highway. Even though you could take a slower, free backroad, you pay the toll for the speed, convenience, and security of a smooth journey.
Formula
Calculation
Total Processing Fee = (Transaction Amount x Percentage Rate) + Fixed Fee per Transaction
Example: If a customer spends £50 and your processor charges 2 percent plus 20p per transaction:
Processing Fee = (£50 x 0.02) + £0.20
Processing Fee = £1.00 + £0.20 = £1.20
Your net revenue from the £50 sale is £48.80.Case study
Seen in the real world.
Brighton Bicycle Repairs, a mid-sized cycling shop, noticed that their net profits were lower than expected at the end of the first quarter, despite strong sales figures. The owner, Sarah, decided to investigate the company's overheads and discovered that card processing fees were consuming nearly three percent of total gross revenue. With annual sales reaching £300,000, card fees were quietly costing the business £9,000 every year.
To address this, Sarah reviewed the company's merchant agreement and shopped around for a more competitive provider. She negotiated a lower flat percentage rate based on the shop's steady sales volume. Additionally, she introduced a policy for minor accessory purchases under £10, encouraging customers to pay with cash or use a contactless minimum. By switching providers and adjusting payment policies, Brighton Bicycle Repairs reduced its annual processing costs by £3,500, directly improving the bottom line without needing to raise retail prices for customers.
Watch out
Common mistakes.
- Treating processing fees as a fixed cost without negotiating rates as transaction volumes grow.
- Forgetting to include payment processing costs when calculating the true profit margin of a product or service.
- Failing to review monthly merchant statements, which can lead to missed charges or hidden price increases.
Questions
People also ask.
Can I legally pass processing fees directly onto my customers?
In the UK and many other regions, regulations often restrict businesses from adding surcharges for standard debit or credit card payments. It is usually better to build these costs into your standard pricing.
Are processing fees tax-deductible?
Yes. Merchant processing fees are considered a standard business operating expense and can be deducted from your taxable income, reducing your overall tax liability.
Why are online payment fees higher than in-store fees?
Online transactions carry a higher risk of fraud because the physical card is not present, requiring extra security checks that increase the cost for payment processors.
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