Exchange Rate
The price of one currency in another, determining how much you actually receive when a client pays an invoice in a foreign currency.
Definition
An exchange rate is the price of one currency expressed in another: if EUR/USD is 1.10, one euro buys 1.10 US dollars. When a client pays you in a currency other than the one your bank account holds, an exchange rate determines how much actually lands. Rates float constantly with the market, so the same EUR 5,000 invoice can be worth different dollar amounts week to week.
The rate you see quoted in the news, the mid-market rate, is rarely the rate you get. Banks and payment providers add a spread, commonly 1% to 4%, on top of any stated transfer fees, and that spread is where most of the cost of currency conversion hides. Some providers convert at near-mid-market rates with a transparent fee, which is usually the cheaper structure.
Why It Matters
If you have international clients, exchange rates are an invisible line item on every invoice. A 3% conversion spread on a EUR 10,000 invoice quietly costs you around $300, often more than the wire fee you were watching. Comparing the rate you received against the mid-market rate is the only way to know what conversion really cost.
You can manage the risk with invoicing decisions. Invoicing in your own currency moves the rate risk to the client; invoicing in theirs makes you easier to buy from but exposes you to swings between invoice date and payment date, an exposure that grows with Net 30 or Net 60 terms. For ongoing foreign income, getting paid into a multi-currency account and converting strategically beats letting your bank convert by default.
Examples
- 1
A US developer invoices a German client EUR 8,000; at payment the mid-market rate would yield $8,800, but the bank's 3% spread delivers $8,536.
- 2
A designer invoices UK clients in GBP on Net 30 terms; the pound weakens 2% before payment, trimming about $190 from a £7,500 invoice.
- 3
A consultant with monthly EU income opens a multi-currency account, holds euros, and converts when rates are favorable instead of on every payment.
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