FX without the correspondent chain

What a cross-currency wire actually costs

Ask a finance team what their FX costs are and they will usually quote a rate — the spread their bank charges over mid-market. That number is real, but it is the visible part of a price that mostly accrues out of sight.

A cross-currency wire travels through a chain of correspondent accounts, and the chain prices the payment three times over. First, the conversion itself: the rate you are quoted sits some distance from the mid-market rate, and unless the quote names its reference, you cannot measure the distance. Second, the hops: each intermediary bank in the chain may take its own margin where a conversion or a funding leg passes through it. Third, the deductions: intermediaries commonly charge lifting fees directly against the principal, so the beneficiary receives less than the sender sent — and neither side knows the shortfall until the money arrives.

That last property is the expensive one. A cost you can see, you can negotiate. A cost that surfaces as a short arrival, days later, on someone else's statement, mostly gets absorbed — reconciled as a write-off, disputed with a supplier, or buried in a "bank charges" line no one owns.

The rate is the visible cost. The chain is the price.

Settlement is its own discipline

The chain does not just price the payment; it also carries the risk. FX settlement — the actual exchange of the two currencies — is where cross-currency payments have always concentrated their danger. Spot FX conventionally settles two business days after the trade, and the classic failure mode has a name: Herstatt risk, after a 1974 bank failure in which one party delivered its currency and the counterparty collapsed before delivering the other side.

Interbank markets responded by making settlement a discipline in its own right — payment-versus-payment systems like CLS release each currency leg only if the other settles. Businesses do not get that machinery. What they get instead is the retail experience of the same risk: prefunded balances parked in foreign accounts against the settlement lag, opaque pricing across the window, and a reconciliation queue of payments that may still change between the trade date and delivery.

The point is not that businesses should build PvP infrastructure. It is that the two-day window and the machinery around it exist because the underlying rails settle slowly, hop by hop. Change the rail and the discipline changes shape.

Conversion at the edges

FX over stablecoin rails restructures the payment into three legs with different properties. Fiat comes in and converts to a dollar stablecoin at a priced, quoted rate. The cross-border leg — the part that used to traverse the correspondent chain — moves on-chain and is final in minutes, at any hour, with no intermediary positioned to add margin or deduct fees in transit. At the far edge, the stablecoin converts to the destination currency and pays out over local rails.

Two conversions, each priceable against a visible reference before anything moves, with a transit leg between them that has no hops to price. The all-in cost stops being something you discover on arrival and becomes something you read on the quote.

The structure only holds if compliance holds with it. On Infinite (infinite.net), screening runs before conversion — the counterparty is verified and screened before either edge executes, on every rail, so the speed of the transit leg never becomes a bypass around the controls. A conversion that clears in minutes to an unscreened counterparty is not an FX product; it is a finding.

What to ask an FX provider

The structural questions do more work than the rate card. Four separate the providers who have collapsed the chain from those who have repackaged it:

• What is the pricing reference? A quote should name its distance from the mid-market rate, with no post-trade adjustments — the rate you accept is the rate that settles.
• When do funds arrive? Same-day settlement into the target currency is the test of whether the chain is actually gone; a modern quote on top of a T+2 correspondent path is the old product with better marketing.
• When does screening run? Before conversion, on every leg — not after, and not only on the fiat edges.
• Where does it reconcile? Conversions should post to the same ledger as the payments they fund, with the executed rate attached — one entry, both legs, no second system to reconcile at month end.

On Infinite, FX is a capability of the account rather than a separate product: firm quotes with explicit expiry windows across supported corridors, settlement into the same balance as USD and stablecoins, and one live ledger across every currency the account touches.

The correspondent chain priced cross-currency payments for decades because it was the only path. It is not the only path anymore — and once conversion happens at the edges, at a rate you can read before the money moves, "FX cost" goes back to meaning what it should have meant all along: the price of the conversion, and nothing else.

Frequently asked questions