BIN sponsorship and card issuing for platforms, explained
How a platform puts branded cards in front of users without joining a card scheme: what a BIN is, who sponsors it, and what the sponsor requires of you.
A card in your product looks like a design decision. Underneath it is a chain of permissions, and BIN sponsorship is the link that lets a platform join that chain without becoming a card scheme member itself.
What a BIN is
The BIN, or bank identification number, is the leading digit range of a card number. Visa and Mastercard allocate ranges to licensed issuers who are principal members of the scheme. The range identifies who is responsible for the card, who authorises transactions on it and who settles them.
What sponsorship means
Under BIN sponsorship, a licensed issuer allows your programme to issue cards on its BIN, under its scheme membership. Your brand is on the card; the issuer's permissions are behind it. The alternative - principal membership - means capital requirements, scheme fees, certification and direct settlement obligations, which is why very few platforms take that route.
Who does what
- Scheme. Visa or Mastercard: rules, interchange, the network itself.
- Issuer and BIN sponsor. Holds the licence and the scheme membership, carries the regulatory and settlement responsibility.
- Processor. Authorises transactions, manages the card lifecycle and exposes the API you build against.
- Programme manager. Runs the programme day to day: onboarding, limits, disputes, support. Often you.
What a sponsor asks for
Sponsors underwrite the programme, not just the company. Expect scrutiny of your onboarding standards, transaction monitoring and fraud controls, your funding model, dispute handling capacity, marketing claims, and the jurisdictions you will issue into. High-risk and crypto models draw more of all of it.
Virtual before physical
Virtual cards are faster to launch, cheaper to iterate and lower risk to underwrite. Physical adds manufacturing, fulfilment, logistics and a longer certification path. Most programmes launch virtual, prove the model and add plastic once the volumes justify the overhead.
What it earns you
Card programmes generate revenue from issuance fees, a share of interchange and FX margin on foreign-currency spend, against per-card and per-authorisation costs. Whether the mix works depends entirely on your users' spend behaviour. Model the card line alongside accounts and payments rather than in isolation.
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Written and reviewed by the Crosswire advisory team, which designs and places Banking-as-a-Service programmes for platforms in Europe. Reviewed 15 August 2026.
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Published by Crosswire - financial infrastructure for the businesses others won't bank.