Framework · Commercial-Card Economics & ROI™
A first-principles model of where every dollar of commercial-card value comes from — and how much of it your AP, procurement, and treasury team can actually capture as rebate, working capital, and stripped-out process cost.
Net-margin-weighted, never headline percentages. The discipline we call TrueYield™ — the math that survives a CFO’s scrutiny on either side of the table.
The reframe
Most card math is built to explain how the issuing bank profits. That makes the rebate look like a gift and the fee look like a fixed loss. Both are wrong. The rebate you earn, the days you extend, and the process cost you strip out are a defined slice of a value pool the network and the bank create on your spend — not magic, and not a favor.
The load-bearing idea
Each lever maps to a real formula and a real number for your AP file. Card vs. check & ACH stops being a slogan and becomes a per-line decision once you can see where every dollar comes from.
Cash back on carded spend, funded out of the interchange the network already moves on this spend — net of the issuer’s defined margin. Structurally fundable, which is why it survives scrutiny.
The cash freed by paying later, valued at your real cost of capital. Across a large AP base this is often the single biggest dollar — and it’s worth more when capital is dear.
Level 2/Level 3 data unlocks lower, discounted rates that make big invoices cardable — a spend-conversion lever that brings new supplier volume onto the rail, not a yield trick.
Every check eliminated, every manual touch removed, every invoice made auditable. A pure operations saving the card rail enables — independent of interchange entirely.
Acceptance is the multiplier in front of all four. Move acceptance up and rebate, working capital, and process savings all scale with the carded volume.
The numbers behind it
Optimized Level-3 / Product 3 commercial rate — roughly 95 bps below the standard card-not-present 2.70%. Networks discount data-rich transactions to make large invoices cardable, which is what converts new supplier volume onto the rail.
Carded-volume lift in a worked AP example when managed enablement moves acceptance from ~30% to ~55% — and rebate, working-capital, and process savings all scale with that carded volume.
The insight that governs everything
After the client rebate, cost of funds, credit, fraud, and servicing, the issuer keeps a thin residual of what the headline interchange implies. For you that cuts both ways: it sets a realistic ceiling on how rich a rebate can be funded, and it proves the rebate is paid out of a real, defined pool. Anchor to net margin, let each side plug in its own number, and the case holds.
Start with a paid diagnostic. We’ll run your AP file at your cost of capital and the issuer’s real rate card, then hand your team a quantified return — rebate, working capital, and process savings, defensible line by line.
Industry data referenced on this page: Visa Commercial Solutions ↗ · Federal Reserve — Payment Systems ↗
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