An operator was comparing processing costs last quarter and told us their card acquirer was cheaper than our stablecoin cashier — 4.9% vs. our 3.5%. On the surface it looks correct. In practice it wasn't close.
What the rate card doesn't tell you
- Rolling reserve. Most high-risk card acquirers hold 5–20% of processing volume for 180 days as protection against chargebacks. On $500k monthly volume, a 10% reserve at 180 days is $300k of capital the operator can't touch.
- Chargeback fees. $25–$40 per chargeback, whether or not the operator wins the dispute. At a 0.8% chargeback ratio on $500k monthly, that's another $2,000–$3,200 monthly.
- Freeze events. Not a fee. A total halt on processing while the acquirer conducts a review. Zero volume for 2–8 weeks. The operator continues to have expenses.
- Termination reserve. When a card MID terminates, the acquirer holds the entire reserve balance for 180 days from the termination date, regardless of remaining chargeback exposure. This is the acquirer protecting itself, not the operator.
The real cost
On the $500k/month operator: nominal processing fee at 4.9% is $24,500. Rolling reserve capital cost at 8% APR on the average $300k held is $2,000/month. Chargebacks and fees average another $3,000. Freeze events, when they happen, cost the full monthly volume. Actual annualized cost: 6.5–9% on volume during normal operation, and any freeze pushes it into the double digits.
The stablecoin cashier at 3.5% has none of those secondary costs. There is no reserve. There is no chargeback fee because there are no chargebacks. There is no freeze event because there is no third-party acquirer with the authority to halt processing.
Why this comparison isn't obvious
Rate cards are designed to be compared. Reserves and freeze events aren't. They show up on cash-flow statements and treasury reports, but they never surface as line items on the processor's invoice.
The exercise every high-risk operator should run at least once: build the full-cost picture for their existing card rail, including the imputed cost of held reserves and the annualized cost of the last freeze event. The number is almost never the number on the pricing page.
The fair comparison for a stablecoin cashier isn't the nominal card fee. It's the fully-loaded card cost, including the parts the acquirer doesn't want you to line-item.