The Card Payments Summary Box: What Merchants Need to Know About Their Costs and Switching Options
18 February 2026
Written by Libby James
Libby James is co-founder, director and an expert in all things merchant services. Libby is the go-to specialist for business with more complex requirements or businesses that are struggling to find a provider that will accept them. Libby is regularly cited in trade, national and international media.
Card Payments Summary
For many UK businesses, card processing fees are one of the most misunderstood operating costs.
Historically, merchants received complex statements, unclear pricing structures, and limited information about when or how they could change providers. The introduction of the card payments summary box changes that.
This guide explains:
- What the summary box is
- How to read it properly
- What it tells you about switching
- What to expect from providers
- Why it matters for your long-term costs
What Is the Card Payments Summary Box?
The summary box is a standardised pricing breakdown that card payment providers must give to merchants.
It shows your actual payment costs in a consistent format so you can compare providers more easily.
The regulator designed it so merchants can see:
- What they are paying
- Why are they paying for it
- Whether a different provider might be cheaper
Providers must include all typical charges in one place and present them consistently to allow comparisons between services.
Why the Summary Box Was Introduced
The UK acquiring market has traditionally suffered from a lack of transparency.
Many merchants did not switch providers, not because they were happy, but because they:
- Did not understand their pricing
- Did not know when contracts ended
- Could not compare like-for-like quotes
The summary box fixes this by standardising how costs are presented.
What Information Does the Summary Box Show
The layout groups charges into specific sections so merchants can quickly understand how pricing works.
Current Contract Information
This section tells you:
- Contract end date
- Total annual card charges
- Average transaction value
- Merchant category
This is crucial because it reveals your real effective rate not just headline pricing.
Transaction Fees Variable Fees
These are percentage-based charges paid on each transaction, including:
- Interchange fees
- Scheme fees
- Acquirer markup
They vary depending on:
- Card type debit vs credit
- Consumer vs business cards
- Online vs in-person payments
Fixed Transaction Charges
Flat fees applied per transaction such as:
- Authorisation fees
- Per transaction costs
Small individually but high volume makes them significant.
Charges for Exceptions
Situational costs such as:
- Chargebacks
- Retrieval requests
Many merchants underestimate how much these impact annual cost.
Recurring Monthly Fees
Ongoing operational charges:
- Terminal rental
- Gateway fee
- PCI service fee
- Minimum monthly service charge
Service Features
Operational details including:
- Settlement time
- Accepted card brands
- Service capabilities
The Trigger Message: Your Signal to Review Costs
Alongside the summary box, providers must send a trigger message before your contract ends.
This message tells you:
- When your contract expires
- That you can switch providers
- That switching could save money
It must be displayed prominently on invoices and dashboards.
In practice, this removes one of the biggest historical barriers to switching merchants, simply forgetting renewal dates.
How Merchants Should Actually Use the Summary Box
Most businesses read it once and ignore it.
Instead, treat it as a cost analysis tool.
Step 1 Work Out Your Effective Rate
Divide total annual charges by total card turnover.
This is your true cost not the quoted percentage.
Step 2 Identify What Drives Your Fees
Look for:
- High business card usage
- High online transaction proportion
- High fixed fees vs percentage fees
This determines what pricing model suits you.
Step 3 Compare Like for Like Quotes
You now have standardised data to provide to other providers.
This avoids the classic problem of comparing an estimated quote versus a real bill.
What to Expect From Providers Now
Because of the regulation, providers should now:
Provide Comparable Pricing
They cannot hide costs across multiple documents.
Show Realistic Charges
Estimates should align with actual transaction mix.
Allow Easier Switching Decisions
You should know exactly when you can move without penalties.
Your Options When You Review the Summary Box
Merchants typically have three choices.
Stay and Renegotiate
You may already be suitable but priced incorrectly.
Many providers will reprice when presented with evidence.
Change Pricing Model
Examples include moving between blended pricing and interchange plus pricing or switching terminal and gateway setups.
The cheapest provider is often the one matching your transaction profile not the lowest headline rate.
Switch Provider
If your effective rate is uncompetitive, switching may reduce costs, particularly for businesses that have not reviewed pricing in several years.
Why This Matters More Than Merchants Think
Card fees compound.
A small difference of 0.3 per cent on £500,000 turnover equals £1,500 per year.
Many businesses operate on lower margins than that.
The summary box effectively turns payments into a manageable, auditable expense rather than a fixed overhead.
The Real Benefit Control
The purpose of the summary box is not to make you switch.
It is to give you:
- Visibility
- Comparability
- Negotiating leverage
For the first time, merchants can understand card costs without specialist industry knowledge.
Wrapping It Up
Your summary box is now the simplest way to understand what you are really paying for card processing. Review it at least once a year, and always when you receive a trigger message, as this is usually when you can act without entering a new commitment period.
Many businesses stay with the same provider simply because pricing feels too complex to analyse. The summary box removes much of that complexity, but interpreting the figures and knowing whether they are competitive can still be difficult.
Merchant Advice Service helps by translating the summary box into plain language, calculating your effective rate, and comparing it against suitable alternatives in the market. This allows you to decide whether to renegotiate, adjust your pricing structure, or switch provider based on evidence rather than guesswork.
FAQs
When was the card payments summary box introduced?
The summary box was introduced in the UK in 2024 following new transparency rules from the Payment Systems Regulator. Providers must now present card processing costs in a consistent format so merchants can understand their fees and compare providers more easily.
Do all payment providers have to give me a summary box?
Most UK card acquiring providers, payment facilitators and similar services that allow businesses to accept card payments are required to provide one. If you accept cards through a business payment contract, you should receive a summary box on statements or within your online account dashboard.
How often will I receive a summary box?
You should receive it regularly as part of your billing information. It is typically included on statements and accessible through your account portal so you can review your costs whenever needed.
What is the trigger message, and why did I get one?
The trigger message is a notification sent before your contract ends. It reminds you that you can review your pricing, renew or switch providers. Its purpose is to stop contracts automatically rolling over without the merchant realising.
Does the summary box show my real card processing rate?
Yes. It shows your total charges and transaction volumes, allowing you to calculate your effective rate. This is usually more accurate than headline quoted rates because it reflects your actual transaction mix.
Does receiving a summary box mean I should switch providers?
Not necessarily. The aim is to help you understand your costs. Some merchants stay and renegotiate; some change pricing structure, and others switch providers depending on whether their pricing is competitive.
What should I do when I receive one?
You should review your effective rate, check your contract end date and compare pricing options before renewal. This is the point where businesses have the most flexibility to make changes.
Can providers charge exit fees after the trigger message?
They can still charge fees if they are part of your contract terms, but the trigger message is designed to give you notice before renewal so you can make a decision before new commitment periods begin.
