What Is a Merchant Account?
A merchant account is an account held with an acquiring bank that allows you to accept card payments and receive settlement. It is not a business bank account: funds pass through it, are netted against refunds, fees and any reserve, and are then paid out to your ordinary bank account.
Dedicated MID or aggregated account
Dedicated merchant account (own MID)
Underwritten specifically for your business. Slower to open, but you get your own descriptor, negotiated pricing and far more stability if volumes grow or spike.
Aggregated (sub-merchant) account
A payment facilitator signs you up as a sponsored merchant on behalf of its acquirer and passes your settlement on to you. Onboarding is quick and self-service, but processing can be stopped at short notice if your profile no longer fits the facilitator's policy.
What affects approval
- Industry and MCC, plus any licence the category requires.
- Company registration country and the markets you sell to.
- Monthly volume, average ticket and largest expected transaction.
- Trading history, chargeback ratio and refund rate.
- Delivery lag between payment and fulfilment.
- Ownership, KYC and source-of-funds documentation.
Terms worth reading closely
- Reserve type, percentage and release schedule.
- Settlement frequency and currency, plus FX margin.
- Chargeback fees and monitoring thresholds.
- Volume caps and what happens when you exceed them.
- Notice period and termination conditions.
Try it with your own numbers
Rolling reserve calculatorSee what that percentage and hold period would tie up on your own volume.
The merchant category code attached to the account
Every merchant account carries a merchant category code: a four-digit code describing what you sell. It is not an administrative detail. Permitted-category policy, interchange, and in some cases scheme rules and monitoring are applied through that code, so a code that does not match the business is a recurring source of surprise limits and declines.
- The code should describe the activity carrying most of your card volume.
- Selling several distinct things through one entity often means more than one account, rather than one broad code.
- Changing a code later is a re-underwriting conversation, so check it matches what you sell before you apply.
What ends a merchant account
Accounts are closed far more often than they are declined outright, and the reasons are consistent. Knowing them is the practical way to keep one open, because in most cases the account holder saw the cause coming.
- A dispute ratio that stays above the acquirer's or scheme's threshold for consecutive months.
- Volume or average ticket well beyond what was underwritten, without telling the acquirer first.
- Selling something outside the approved category, including a new product line added quietly.
- A change of ownership, entity or website content that was not disclosed.
- Refunds that cannot be funded, which is exactly the exposure the acquirer underwrote.
- Unanswered requests for documents or information during a periodic review.
Try it with your own numbers
Chargeback ratio calculatorWork out the same figure for your own month before reading on.
What the account actually costs to run
Pricing on a merchant account is rarely one number. A percentage fee and a fixed fee per transaction combine differently depending on your average transaction value, and the monthly, gateway, chargeback and payout fees sit on top of that. The figure to compare between two offers is the effective rate on your own volume and transaction count, not the headline percentage.
Work it out with your real average ticket. A low percentage with a high fixed fee is expensive on small baskets, and the reverse is true on large ones, which is why the cheaper-looking quote often is not.
Try it with your own numbers
Payment processing cost calculatorPut your own volume, transaction count and fees in to see the effective rate.
How Ecompayer helps
Ecompayer matches your business with an acquirer that accepts it and prepares your own merchant account, through one online application.
- Add your business, markets, volumes and history once.
- We match you with an acquirer that accepts your profile.
- Your merchant account is prepared so you can start taking payments.
Related pages
Check your own situation
Which merchant account setup suits you depends on your industry, markets and volume. Answer four questions to start checking your own options.
Four questions about your business
Industry, company country, customer markets and estimated monthly volume, that is all we need to begin.
Related guides
What is an acquirer?
An acquiring bank is licensed by the card schemes to accept card transactions on your behalf, holds your merchant account, and settles the funds to your bank. It also carries the financial risk if you cannot refund your customers, which is why the acquirer, not the gateway, decides whether you are accepted.
Rolling reserve
A rolling reserve is a percentage of each payout that your acquirer holds back for a fixed period, typically three to six months, before releasing it. It covers refunds and chargebacks that can arrive long after you have been paid. The money is still yours, but while it is held it is not working capital, so the terms matter as much as your processing rate.
Chargeback ratio
Your chargeback ratio is the number of disputes in a month divided by a month of transactions, shown as a percentage. Mastercard flags merchants from 1.5% of chargebacks and Visa from 1.5% of fraud plus disputes in most regions, both with minimum counts, and most acquirers act before that. It is the number that decides whether you keep your account, so know exactly how your provider calculates it.
MCC codes
A merchant category code (MCC) is a four-digit code that tells the card schemes and card issuers what kind of business you are. Your acquirer assigns it when you are onboarded. It affects what interchange you pay, whether issuers approve your payments, whether you need scheme registration and which rules apply to you.
Find a payment provider that fits your business
Add your business essentials once and see which PSPs and acquirers match your profile before applying.
Check my payment optionsNothing is shared with a provider until you submit your onboarding pack. Approval is always the provider's decision.
