Tips for switching merchant account providers
Published - 29 September 2016
Revised - 14 August 2026


Libby James is the founder and Managing Director of Merchant Advice Service. Since 2016, she has worked directly with businesses and payment providers across merchant accounts, card processing, payment gateways and complex provider requirements.
Libby specialises in high-risk, declined and harder-to-place merchants, as well as businesses requiring specialist payment methods, integrations or international support. She writes and reviews Merchant Advice Service content, drawing on practical experience gained from real merchant enquiries and provider relationships.
Switching merchant account or payment provider can help a business reduce costs, improve settlement, access better integrations or move away from a provider that no longer suits its requirements.
Merchant Advice Service is an independent UK payments information, comparison and provider-matching service. Switching payment provider is one of the areas MAS has covered since the business was founded in 2016, particularly where the change involves more than simply comparing headline transaction rates.
Businesses often stay with the same card-payment provider for years without checking whether the pricing, technology or contract still suits them.
That can become expensive.
A merchant account may have been priced when the business:
Several years later, the same company may have higher turnover, cleaner processing history and very different payment requirements, while still paying the original rates.
Switching merchant account provider is therefore not simply about finding a lower headline percentage.
A useful review should examine:
This guide explains how to compare merchant account providers properly, identify where savings may exist and switch without unnecessarily disrupting customer payments.
Merchant Advice Service helps businesses compare their current card-payment arrangement with potential alternatives.
A review may be particularly worthwhile where you:
MAS does not guarantee that changing provider will save money.
The purpose of the review is to compare the whole payment arrangement using the merchant's actual transaction profile.
Potentially.
The Payment Systems Regulator found that the card-acquiring market was not working well for many small and medium-sized merchants and larger merchants with annual card turnover up to £50 million. It also found that many businesses did not regularly shop around, switch or negotiate despite evidence that doing so could lead to a better deal.
But switching only makes sense where the new arrangement is better overall.
A lower transaction rate can be cancelled out by:
The correct comparison is not simply:
“Which provider has the lowest rate?”
It is:
“What does accepting payments currently cost my business, and what would the same transactions cost under the proposed arrangement?”
Card processing is unusual because many businesses negotiate the arrangement once and then leave it untouched.
Meanwhile, the business itself changes.
An account priced when you processed £20,000 each month may no longer represent good value if you now process £200,000.
Higher turnover can sometimes support:
That does not mean rates automatically fall as the business grows.
The merchant normally needs to review or renegotiate them.
A business may originally have been:
Several years of clean processing can provide an underwriter with much more evidence.
This can be particularly important for higher-risk merchants that accepted expensive terms when they launched because their provider choice was limited.
A business may now process a different proportion of:
Pricing that suited the old transaction mix may no longer suit the new one.
You may now be paying separately for:
These costs often build up gradually.
Nobody stops to ask whether the overall payment architecture still makes sense.
When businesses contact Merchant Advice Service about switching, they often quote their current transaction percentage.
That is useful, but it rarely tells the whole story.
Two merchants both paying “1.2%” can have very different actual payment costs.
One may also pay:
while another has several of those costs included.
Similarly, two providers offering 0.8% and 1% cannot be compared properly unless we know:
MAS therefore prefers to compare actual processing information rather than headline sales rates wherever possible.
Your Card Payments Summary Box can be one of the most useful places to start when reviewing your current provider.
The Payment Systems Regulator introduced personalised summary boxes as part of its card-acquiring market reforms. Directed providers are required to give merchants key price and non-price information in a consistent format, with the aim of making card-acquiring services easier to understand and compare. The PSR also introduced online quotation tools and messages prompting merchants to shop around or negotiate.
Depending on your provider, your Summary Box may be available:
Use it to understand areas such as:
It is a very useful starting point — but it should not be used in isolation.
Your merchant statements show what you actually processed and paid.
For a meaningful comparison, MAS would ideally look at:
Your Card Payments Summary Box + three recent merchant statements.
Together, these can provide a much clearer picture of:
Check:
You can also ask your current card-acquiring provider for the information it supplies to help you understand your fees and contract.
If you already process card payments, sending MAS your Card Payments Summary Box and three recent merchant statements gives us a much better starting point than simply asking another provider for a headline quote.
We can look at how the existing arrangement is structured and whether a wider comparison appears worthwhile.
You do not need to cancel your current account or commit to changing provider to review your costs.
Take three recent merchant statements.
Ideally choose ordinary trading months rather than an unusually quiet or exceptionally busy period.
For each month, identify:
The total value of card payments processed.
This matters because a fixed 5p or 10p fee can have a significant effect on businesses processing large numbers of smaller payments.
Include percentage-based and fixed charges associated with processing.
These might include:
Include:
Look for:
Then calculate:
Total payment costs ÷ total card turnover × 100
This gives you a useful effective processing cost.
It is not the only measure that matters, but it is considerably more useful than comparing one advertised percentage.
A good payment-provider switch should solve a defined problem rather than simply replace one supplier with another.
Before comparing new providers, Merchant Advice Service recommends establishing what needs to improve. That might be cost, contract terms, settlement, customer service, integrations, payment methods, international coverage or the suitability of the existing provider for the business itself.
For businesses with more complex setups, the technical migration matters just as much as the commercial deal. Gateways, stored payment credentials, recurring payments, terminals, integrations and Merchant IDs should all be considered before the existing facility is closed.
Consider a business processing £250,000 per month in card payments.
At an effective payment cost of 1.4%, this represents approximately:
£3,500 per month
If a genuinely comparable arrangement reduced the effective cost to 1.1%, the cost would be:
£2,750 per month
The illustrative difference would be:
£750 per month
or:
£9,000 per year
This does not mean that every merchant processing £250,000 can save £9,000.
A genuine comparison must consider:
But it demonstrates why seemingly small differences become commercially significant as turnover increases.
One of the first things to establish is how the existing account is priced.
A blended arrangement charges one or several simplified transaction rates.
For example:
The advantage is simplicity.
The disadvantage is that it can be difficult to see the underlying cost and provider margin.
IC+ pricing normally separates:
IC++ typically separates:
This can give larger merchants more visibility over where their payment costs arise.
It does not automatically mean IC++ is cheaper.
A proper comparison needs to use the merchant's actual:
A business with a straightforward card profile may prefer the predictability of blended pricing.
A higher-turnover merchant with several card types, countries and channels may value the greater transparency of IC++.
There does not have to be anything wrong with the existing provider.
Good times to review include:
Treat payment processing like insurance, telecoms or another significant business cost.
Review it periodically rather than waiting for a problem.
A major increase in volume should generally be discussed with your provider anyway.
It is also a sensible point to review the commercial arrangement.
Do not look only at the charge being increased.
Use it as an opportunity to understand the complete cost of the account.
Check the notice period before the renewal date arrives.
More terminals or sites may justify different pricing and reporting arrangements.
The provider that works well for your card terminals is not necessarily the best provider for online payments.
International growth, B2B sales or ecommerce can materially alter processing costs.
A new:
may change which payment providers can support the business.
This might include:
At this point, the decision becomes about payment strategy as much as cost.
The Payment Systems Regulator's market review found significant difficulties for merchants trying to compare card-acquiring prices. Pricing structures varied between providers, prices were not routinely published and terminal contracts could make switching harder.
Its remedies included:
The purpose was to give businesses better information and reduce obstacles to finding a better deal.
This is why we recommend using the Summary Box as part of a switching review rather than ignoring it as another piece of provider paperwork.
One of the most common switching mistakes is assuming the card machine and merchant account form one contract.
They may not.
You could have:
Cancelling the merchant account does not necessarily cancel the card-terminal lease.
The PSR introduced rules requiring relevant providers of POS terminal hire to limit the initial duration of covered contracts to 18 months, followed by rolling arrangements, because lengthy terminal contracts had been identified as a barrier to merchants switching providers.
Before changing provider, check:
Do this before signing the replacement agreement.
Look for:
Do not rely solely on what you remember being told when the account was opened.
Ask for written confirmation where anything is unclear.
Often, yes.
Switching is not the only way to obtain better terms.
An established merchant with strong processing history may be able to use a market comparison to renegotiate:
The PSR's market review specifically identified both shopping around and negotiating with an existing provider as potential routes to a better outcome.
Staying with the existing provider can make sense where:
There is no benefit in changing provider simply for the sake of changing.
A payment provider can be cheap and still cost the business money.
For a large ecommerce merchant, the value of legitimate payments being approved can be more significant than a small difference in the transaction rate.
Ask:
A comparison should therefore consider payment performance as well as payment cost.
For a business processing substantial card turnover, when funds arrive can be commercially important.
Compare:
A small reduction in fees may be less attractive if the new provider significantly delays access to funds.
A cheaper provider that creates additional accounting work may not actually save the business money.
Look at whether reporting clearly identifies:
Ask what happens when:
Find out whether support is:
Your new provider needs to work with the systems the business actually uses.
These might include:
A slightly cheaper acquirer can become expensive if switching requires a major development project.
Changing ecommerce acquiring can involve much more than changing the payment button.
Check:
This is particularly important for recurring-payment and subscription businesses.
Stored card information should normally be represented through secure payment tokens rather than the business keeping raw card numbers.
Those tokens may belong to:
They may not automatically work with a replacement provider.
Before switching, establish:
Do not cancel the existing gateway until this has been established.
For physical locations, changing provider may involve:
Do not schedule cancellation of the old service before the new hardware is working.
For multi-location businesses, a phased rollout may be safer than changing every location simultaneously.
Understand:
Use it alongside recent statements to create a clearer picture of the current account.
Three months is often a useful starting point.
Higher-risk and larger merchants may be asked for a longer history.
This could include:
Without a clear objective, it is easy to select a cheaper-looking provider that solves the wrong problem.
Do not give one provider £50,000 monthly turnover and another £100,000.
A meaningful comparison requires consistent assumptions.
A quote is not a live merchant account.
Wait until the replacement arrangement has been properly approved.
Test:
Where appropriate, keep the existing account available while the replacement setup is verified.
Check:
Look for:
Keep historic statements and reports wherever possible.
Changing provider may not be sensible simply because another salesperson has quoted a lower percentage.
Pause where:
Resolve the underlying issue before moving.
Imagine your existing provider charges:
0.9% + 5p
A salesperson offers:
0.7%
That sounds cheaper.
But suppose the new arrangement also introduces:
Depending on your transaction profile, the apparently cheaper rate could cost more.
This is why MAS looks at pound-for-pound cost, rather than simply comparing percentages.
For businesses processing substantial volumes, the bigger opportunity may be in payment architecture rather than negotiating a few basis points.
For example:
At this level, switching provider becomes a payment-strategy decision, rather than simply a cheaper merchant account.
Use the same checklist for every proposal.
Merchant Advice Service provides free, independent guidance for businesses comparing card-payment providers.
Switching reviews can be particularly useful where a merchant already has processing history, because existing statements allow potential alternatives to be considered using real transaction data rather than estimates.
MAS may help with:
We can look at the existing arrangement to understand:
Where available, the Summary Box can be considered alongside your statements to help build a clearer picture of the existing commercial arrangement.
The cheapest provider is not useful if it cannot support:
MAS works with different acquiring banks, payment providers, gateways and specialist payment businesses.
Potential routes can be considered against the merchant's actual requirements.
MAS does not compare every provider in the market, and all applications remain subject to underwriting.
Where sufficient information is available, potential proposals can be assessed against the same transaction profile.
That is considerably more useful than comparing unrelated headline percentages.
Depending on the requirement, this may include considering:
MAS does not cancel existing contracts on behalf of businesses or guarantee that changing provider will create a saving.
For the most useful initial comparison, provide:
For higher-turnover or more complex businesses, it may also be useful to provide:
You do not need to know every answer before making an initial enquiry.
For an established merchant looking to switch, the process may involve:
Businesses do not pay MAS for its initial matching and introduction service. MAS may receive commission from a provider or partner following a successful introduction.
This article provides general payments information and is not legal, accounting or contractual advice. Merchant agreements, pricing structures and payment requirements differ. Businesses should review the terms of their existing and proposed agreements before switching.
Written or reviewed by Libby James, founder of Merchant Advice Service and specialist in merchant payments and complex provider requirements.