The economics of a card programme
Before choosing a processor or an issuing partner, model the unit economics. Most programme decisions are settled by a handful of variables.
Card programmes fail commercially for reasons that are visible in a spreadsheet long before launch. The technology works; the economics do not.
The revenue side
Revenue usually comes from some combination of interchange, customer fees, subscription charges and, where the programme supports it, credit or lending income. Interchange is often assumed to be the foundation, but it is also the most frequently misunderstood: the rate depends on the product type, the merchant category, the region and the scheme rules — and on who in the chain is entitled to it.
A programme that assumes consumer credit interchange on a debit product, or ignores the difference between domestic and cross-border transactions, will produce a forecast that never survives contact with a settlement report.
The cost stack
- Processing. Per-card, per-transaction or platform fees, depending on the provider and the arrangement.
- Scheme and network fees. Assessment fees, cross-border fees and charges that vary by transaction type.
- Programme or partner fees. The institution's share for providing permissions, safeguarding and oversight.
- Fulfilment. Card production, packaging and delivery, which can dominate the cost of a dormant card.
- Servicing. Contact centre, disputes and chargebacks, all of which scale with activity rather than revenue.
- Compliance and monitoring. Transaction monitoring, reporting and the controls the institution requires.
The variables that decide the outcome
Active rate. The share of issued cards that transact regularly. A programme with high issuance and low activation carries fulfilment and servicing costs with little revenue.
Average spend and ticket size. Interchange is a percentage of spend, so the customer's spending behaviour matters more than the number of cards.
Cost to serve. Every dispute, replacement and contact has a cost. Products aimed at customers who need frequent support carry a different economics from products aimed at low-touch users.
Funding and float. Where the programme holds balances, the treatment of customer funds and the value of the float affect the commercial model — and are governed by the institution's regulatory arrangements.
A discipline, not a forecast
Model the programme at several activity levels, not one. Test what happens if the active rate is half of plan, or if disputed transactions double. If the programme only works at the optimistic case, the problem is the model, not the market.
Interchange is not a business model on its own. It is one line in a unit economic that has to work at realistic activity levels.
This note is general commentary and does not constitute legal, regulatory or investment advice. Specific permissions and obligations depend on your business, jurisdiction and the institutions involved.