The short answer
An acquirer (formally "acquiring bank" or "merchant bank") is the bank authorized by Visa and Mastercard to accept card transactions on a merchant's behalf. They underwrite the merchant account, assume counterparty risk for chargebacks, and settle funds into the merchant's bank. Every legitimate card-accepting business has one, whether the merchant sees the name or not.
Where the acquirer sits in the flow
A card charge moves through: cardholder → issuing bank → card network (Visa/Mastercard) → acquirer → processor → gateway → merchant. The acquirer is the banking entity; the processor is the tech layer on top. On Stripe or Square, the acquirer is buried (Stripe uses Wells Fargo Bank, N.A., and Goldman Sachs among others; Square uses Sutton Bank and Wells Fargo). On an independent merchant account, the acquirer name appears directly on your statement: Elavon, Chesapeake Bank, Esquire Bank, Evolve Bank & Trust, and dozens of others.
Why the acquirer matters to a multi-brand operator
- Underwriting sits at the acquirer. Approval or rejection for your vertical — peptides, SARMs, CBD, credit repair — is the acquirer's call, not the processor's. Stripe rejecting you means their acquirer rejected you. Switching to a different processor with the same backing acquirer usually produces the same answer.
- Reserves are set by the acquirer. Rolling reserves and upfront reserves are demanded by the bank to offset chargeback risk. The processor surfaces them; the acquirer sets them. See our reserve entry.
- Chargebacks go through the acquirer. When a customer disputes, the issuing bank files a retrieval request to the acquirer, who passes it to you via the processor. You have 10-30 days to respond with compelling evidence.
- Termination authority is the acquirer's. If your ratios go over chargeback threshold, the acquirer terminates the merchant account — the processor is just relaying the news. Terminated accounts hit the MATCH list.
How multiflow works with acquirers
multiflow is acquirer-agnostic. We route your volume through the acquirer who approves your vertical, then layer our orchestration fee on top of their pricing. For a peptide operator, that often means Elavon or Esquire Bank. For CBD, Chesapeake or Evolve. For coaching/courses (low-risk), almost any acquirer. You sign the merchant agreement with the acquirer; we sign the orchestration agreement with you. One operator relationship, brand-specific descriptors, consolidated reporting — but the banking counterparty is always a real, named bank you can see on your statement.
Questions to ask your acquirer
- Who owns the merchant account if we switch processors — us or you?
- What is the reserve schedule, and what triggers a review?
- What happens to funds if we exceed the chargeback threshold?
- Is there a termination fee or minimum commitment?
- Which card networks are we enrolled in, and are there surcharges?