The mid-market exchange rate is halfway between the market's bid and ask prices for a currency pair. Use it as a timestamped comparison point, not as a promise that a bank or payment provider will transact there. The customer rate may also reflect the payment amount, route, currency liquidity and provider pricing.
How is the mid-market rate calculated?
Mid-market rate = (Bid rate + Ask rate) ÷ 2
If an illustrative USD/PHP bid is 62.40 and the ask is 62.60, the midpoint is 62.50 PHP per USD. This is an example, not a current rate. An IMF working paper on FX bid-ask spreads uses the same midpoint calculation.
Benchmark rate and transaction rate
| Rate | Purpose | Can the business transact at it? |
|---|---|---|
| Mid-market rate | Benchmark halfway between bid and ask | Not necessarily, because execution conditions and provider pricing are excluded |
| Customer rate | Rate offered for a specific conversion | Yes, while the quote remains valid and the transaction is approved |
| Reference rate | Published rate calculated under a stated method | Usually intended for information, valuation or reporting |
A worked USD/PHP comparison
Suppose the timestamped midpoint is 62.50 PHP per USD and the offered rate is 61.875. The gap is 1%. On $10,000, the benchmark conversion is PHP 625,000 and the offered-rate conversion is PHP 618,750.
The PHP 6,250 difference is the FX component of the comparison. Add any fixed or receiving charges separately. The example does not represent a provider quote or savings promise.
How to estimate the rate difference
For a direct quote such as PHP per USD:
Rate difference percentage = (Mid-market rate − Customer rate) ÷ Mid-market rate × 100
Use the same quote direction throughout the calculation. Reversing one rate but not the other produces the wrong result.
How should a business use the benchmark?
- Record the benchmark source and exact time.
- Collect provider quotes close to that time.
- Use the same amount, pair, Recipient and payout method.
- Compare the rate, fees, total debit and estimated Recipient amount.
- Check quote expiry and possible intermediary or receiving charges.
Without the timestamp, the comparison cannot show whether the difference came from provider pricing or a market move.
Where Quotable Payments fits
Quotable Payments helps eligible businesses review the applicable rate, fees and estimated Recipient amount before an approved payment is submitted. The quote depends on the business, currency pair, amount, Recipient, jurisdiction and approved route.
See how a Currency Account may affect when conversion occurs.
