Modelling the Cost of Stablecoin Payments End to End

A stablecoin payment has up to four cost points. Which ones apply depends on what each side already holds, and that determines whether the comparison against conventional rails is favourable. Every figure below is measurable against a provider that publishes its terms, and a regulated stablecoin payment processor publishes them.

Point one: the sender acquires the stablecoin

If they already hold it, no cost.

If not, a conversion at a margin of typically 0.2 to 1 percent.

Point two: the network fee

On a fixed-fee network, roughly a unit regardless of amount.

On a demand-priced network, variable and occasionally significant.

Negligible in percentage terms on any meaningful payment.

Point three: the receiver converts to local currency

Where the receiver holds the stablecoin for their own use, no cost.

Where they need ordinary money, a margin of 0.2 to 1.2 percent depending on provider and on whether a currency conversion is also involved.

Point four: settlement to a bank

Small on a regional rail. Larger internationally, with correspondent deductions and a receiving fee.

Where the cost concentrates

Almost entirely in the conversion legs.

The network fee, which is what the discussion usually focuses on, is the smallest component by orders of magnitude on any meaningful payment. The receiving side has its own arithmetic, handled by ecommerce payment solutions with crypto settlement.

The best case

Both sides already hold the stablecoin and one of them needs no conversion.

Then the total cost is a network fee, which is roughly a unit regardless of amount. That is the case that makes the comparison against conventional rails dramatic.

The worst case

Both sides convert, with a currency conversion at each end.

Then the total can approach two percent, which is still favourable against a cross-border bank transfer and not dramatically so.

What reduces it

Holding a stablecoin balance where you both receive and pay in it, which removes two conversions.

Matching the settlement currency to the account currency, which removes the currency margin from the conversion that remains.

The implication for comparison

The honest comparison is corridor-specific and depends on what both parties hold.

General claims about cost assume the best case. Measuring your own case takes one transaction and a note of the rates at each end. Coverage determines more of the total than any fee does. a regulated European crypto platform publishes its country list.