Card vs ACH vs Check
The cheapest way to get paid isn't the one with no fee.
A "free" payment isn't free if it parks your cash for months. Card carries a visible fee but pays sooner — so once you price the carry cost of slow money against cash-flow timing, tax treatment, and Level III data, the math can flip. Move the inputs and watch the true net cost land.
Lowest true net cost
Card is your cheapest way to pay.
Why "no fee" loses
ACH and check look free because their per-transaction fee is pennies. But a payment that takes the full DSO to clear ties up working capital the whole time — that's carry cost, and it dwarfs the sticker fee. Card charges a visible fee, yet it pays on a shorter term, so it carries far fewer days of cost. On top of that, card earns back tax treatment plus benefits ACH and check can't: Level III data savings and lower AR operations cost.
- Carry cost = (cost of capital + inflation) ÷ 365 × days the cash is tied up. Fewer days, lower carry.
- Card pays sooner, so its carry window is the card term — not your full DSO.
- Card-only credits — Level III data and reduced AR operations — pull card's net cost down further.
Illustrative estimate — your diagnostic produces the real number. This calculator uses clean assumptions to show the shape of the math. The actual net cost depends on your supplier terms, interchange tier, tax position, and reconciliation setup — which we baseline in a paid diagnostic.
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