How the FX Margin Works on a Wire Payment

Last updated: June 26, 2026

Overview

This article explains where the FX margin sits in the payment money flow — how it's collected from the customer, how it's settled with the processor, and what your end customers do and don't see on a payment.

What the margin is

The margin is the difference between the wholesale FX rate at which a payment is sourced from the processor and the rate quoted to the customer. It is embedded in the exchange rate, not charged as a separate fee. When a customer accepts a quote, the rate shown is the all-in rate — it already contains the margin.

How the money flows

  1. Funds are pulled from the customer's account. When a payment is initiated, we debit the customer's account for a single all-in amount, calculated from the quoted rate. Because the quote already contains the margin, the margin is collected as part of this debit — there is no separate pull for it.

  2. Funds land in the bank settlement account. The full debited amount is received into the bank settlement account.

  3. The processor is settled. From the bank settlement account, the amount owed to the processor — the wholesale cost of delivering the beneficiary's currency — is paid out.

  4. The margin remains. The difference between what was collected from the customer and what was owed to the processor — the margin — stays in the bank settlement account and is swept out separately as revenue.

So the model is exactly as expected: the margin is collected from the customer at the time of the debit, it sits in the bank settlement account, and once the processor is settled it is the residual that gets moved out.

What the end customer sees

The margin is not itemized for the end customer. Because it is embedded in the exchange rate, the customer's payment confirmation shows a single all-in amount and the quoted rate. There is no separate "margin" line for them to fund or review. The figures the end customer sees are:

  • The amount debited (source currency)

  • The amount the beneficiary receives (destination currency)

  • The exchange rate applied (which already contains the margin)

The margin itself is visible only on the settlement/reconciliation side, not on the customer-facing payment record.

Where the FI sees the margin (reporting)

While the margin is invisible to the end customer, it is fully visible to the FI. FI revenue — the margin earned on each payment — is reported on the end-of-day (EOD) settlement report. This report is where you reconcile the day's activity: the amounts collected from customers, the amount settled to the processor, and the resulting margin (FI revenue) that remains in the bank settlement account to be swept out.

In short, the margin is hidden at the customer-facing layer and surfaced at the settlement/reconciliation layer via the EOD settlement report.