Dedicated vs shared merchant IDs: what the difference means
A payment offer says whether your business gets its own merchant account or joins a provider’s shared arrangement as a sub-merchant. The choice changes who holds the relationship with the bank and what you should ask before you sign. Neither is risk-free.
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Two ways to take card payments
Card payments reach your bank account through an acquiring bank: in the words of the Office of the Comptroller of the Currency (OCC), the bank that contracts with merchants for the settlement of card transactions, either directly or indirectly through agent banks or other third parties.
In a dedicated arrangement, your business has its own merchant account. The OCC’s guidance notes that a merchant may open a merchant account at a bank or other financial institution that is a member of the card association, which lets the merchant process card transactions.
In a shared or aggregated arrangement, another company holds the relationship with the acquirer and processes your payments as one of its sub-merchants. Offers sometimes give you a unique ID inside that arrangement. That ID is still not a dedicated acquiring merchant ID.
Payment facilitators and sub-merchants
Payment facilitator
Mastercard’s term, as the OCC’s guidance quotes it: a merchant that is registered by an acquirer to facilitate transactions on behalf of sub-merchants.
Payment service provider
Visa’s term in the same guidance: an organization that contracts with an acquirer to provide payment services to sponsored merchants. The guidance calls the two models operationally similar.
Sub-merchant or sponsored merchant
A business whose card payments are processed through a payment facilitator’s or payment service provider’s arrangement with the acquirer.
The guidance adds that, in both cases, the acquirer is responsible for the actions of the facilitator and of its sub-merchants, and that card network rules on these models are specific to each network.
What to ask about the MID in an offer
A dedicated MID is not a guarantee, and a shared one is not a warning sign. What matters is that you know which one you are being offered and what follows from it.
| Question | Why it matters |
|---|---|
| Is this a dedicated MID, a shared or aggregated MID, or still to be confirmed? | The answer decides whose arrangement your payments run through. “To be confirmed” should stay visibly unconfirmed until the provider answers. |
| Which company will I contract with, and in which country? | Every Zolution offer names the contracting company and country, which may differ from the provider that introduced the offer. |
| What could interrupt processing? | Ask for the conditions in writing under either structure, including what happens to your funds if the account is closed. |
| How are reserves and payouts handled? | The reserve percentage, holding period, settlement delay and payout schedule are separate terms in every offer. Compare them alongside the MID. |
| Who handles disputes and charge-backs? | Ask who your contact is and which party applies the card networks’ dispute rules to your transactions. |
Scroll the table to see all columns.
Where Zolution shows it
Every proposal on Zolution states its MID structure as Dedicated MID, Shared / aggregated MID or To be confirmed, beside the contracting company, the fees, the reserve and the payout terms. The provider type, whether agent, intermediary or direct bank, is a separate declaration: knowing one does not tell you the other.
Zolution does not rank the two structures and does not verify a provider’s answer. Keep the provider’s written answer with the offer, and ask for a revised offer if it changes.
Questions, answered
Is a sub-merchant ID the same as a dedicated MID?
No. A unique ID inside a facilitator’s arrangement is still part of a shared arrangement. Zolution’s offer terms say so explicitly: a unique sub-merchant ID is not a dedicated acquiring MID.
Does a dedicated MID mean my account cannot be closed?
No. Neither structure is risk-free. Ask the provider what could interrupt processing and what happens to your funds, and keep the answer with the offer.
Sources
- Comptroller’s Handbook: Merchant Processing (Version 1.0, August 2014; reputation-risk references removed 20 March 2025)
Office of the Comptroller of the Currency · Opened 10 October 2026
- Payment terms explained
Zolution · Opened 10 October 2026
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