The currency on an invoice is a pricing decision. Treat it like one.
When you bill in dollars and your costs are in rupees, pounds or pesos, you are quietly agreeing to be paid in whatever the rate turns out to be on payment day. Sometimes that’s a gift. Sometimes it takes a slice out of your margin that you never priced in. Same work, same client, different result, and nobody did anything wrong.
Who carries the risk
Simple rule: whoever is billed or paid in a currency that isn’t their own carries the exchange-rate risk, unless the contract moves it.
Invoice a US client in US dollars from outside the US, and you carry it. Invoice them in your local currency, and they carry it. Invoice in a third currency, say euros, and you both carry some of it, in different directions. Nobody ever escapes the risk completely. It just lands on someone.
The risk lives in the gap between the day you agree a price and the day the money is turned into something you can spend. Short gap, small risk. Long gap, a 60-day payment term on a project priced three months ago, big risk. That’s why the payment terms matter as much as the currency does.
Most buyers expect to pay in their own currency, and many will not even consider anything else. Their accounts system may only handle it that way. So the real question is rarely “which currency do I want”. It’s “what will they accept, and what do I do about the risk if I accept theirs”.
How to choose the invoice currency
Run through these in order.
1. Where do your costs sit? If your rent, staff and tools are in local currency, income in a foreign currency is a bet that you’ll convert at a good rate. If you also pay for software or contractors in dollars, billing in dollars partly cancels that out. You are naturally hedged on the overlapping part.
2. What does the client’s finance team do? A client billed in their own currency can pay by the cheapest local route and doesn’t need to buy anything. That makes you easier to pay. Insisting on a foreign currency may add steps for them, and some will quietly add a delay.
3. What does the market normally use? Some trades quote almost everything in dollars regardless of where buyer and seller sit. In those, offering anything else can look odd, and a client comparing quotes will do the maths in their head against competitors.
4. How volatile is the pair? Look at the history of the pair on a page like EUR to USD and see how much it moved over a typical payment term. If a four-week gap has historically moved the rate by a point or two, that’s noise against a healthy margin. If it moved by five, it’s not.
No rule says you must use the biggest currency. A fixed, boring answer beats a clever one you can’t explain in a sentence.
When invoicing locally is the better call
Bill in your own currency when:
- The client is local, or has a local entity that pays local suppliers anyway.
- Your costs are almost all local and your margin is thin.
- The job is small, and a conversion plus a fee plus an intermediary deduction would eat a visible share.
- The client is happy to carry the risk, because they have dollars or euros coming in themselves.
- Local rules require it. Local rules may restrict invoicing residents in a foreign currency, or require tax invoices to show a local-currency figure. Ask your adviser rather than guessing.
Cost of this choice: you may look pricier or cheaper to an international client when they translate your number, and you have to stand behind that. Say a client’s currency strengthens after you quote. You’ve effectively given them a discount without telling them.
How to quote without getting burned
Quote in one currency. Never put two prices on one document and let the client choose; they’ll pick whichever is cheaper on the day.
State how long the quote holds. A quote that’s good for 14 days has a built-in end to the risk. “Valid until 15 December” is better than “valid for 30 days”, because it doesn’t depend on anyone’s calendar.
Write the currency as a three-letter code next to every amount: “3,000 EUR”, not “3,000”. A dollar sign is ambiguous, since several countries use one.
Converting your own price into the client’s currency? Pick your reference source, write down the rate and the date, and say it’s an indicative conversion. Our GBP to USD page shows a mid-market rate, which is a fair starting point, though the rate you eventually get paid at will carry a margin on top. Build that margin into your price. How much cushion you need depends on your pair and your provider, so work out your own figure from what your last few payments actually cost.
Rate clauses in plain words
If the gap between quote and payment is long, put the risk in the contract. Three common forms:
Fix the rate. “Amounts invoiced in EUR convert at the mid-market rate on the invoice date.” You and the client know the number on day one. Then the client carries the move between invoice and payment, so pay terms shouldn’t be long.
Float, with a band. A currency clause lets the price be adjusted if the rate moves outside an agreed range. One Dutch government business page describes it as setting a minimum and maximum, with the clause applying only when the change falls outside that range. A Canadian federal procurement clause is a real-world version: the adjustment only applies when the rate moves by more than 2%, measured against a starting rate, and it’s shown as its own line on the invoice. You don’t need to copy that, but the structure is worth borrowing: a reference rate, a trigger, and a visible adjustment.
Share it. Split any move beyond the band 50/50. It’s harder to argue about and keeps the relationship intact.
Whatever you choose, name the source of the reference rate, name the date, and say what happens if that source isn’t available. Contracts are a matter for a lawyer; have one read anything with real money in it.
A worked example
Illustrative figures. Say you bill 3,000 EUR for a project. On the invoice date, 1 EUR is worth 90.00 in your local currency (made up), so the job is worth 270,000 local. You agreed 45-day terms. The client pays on time, but by then the euro has slipped to 87.30. That’s a 3% fall.
| Scenario | Rate used | Local value of the invoice |
|---|---|---|
| You priced on the invoice-date rate | 90.00 | 270,000 |
| Euro paid, no clause, converted on payment day | 87.30 | 261,900 |
| Difference | 8,100 less |
With a clause that adjusts the price when the rate moves more than 2% from the invoice-date rate, the client would owe about 3,092.78 EUR instead (270,000 divided by 87.30), an extra 92.78 EUR. That’s real money for a freelancer. But note it only works if the client signed the clause before the work started. Add it afterwards and you’re just asking for more.
Had the euro risen 3% instead, the same clause would have moved in the client’s favour. A fair clause works both ways, and clients are far more willing to sign one that does.
Payment terms and rounding
Shorter terms mean less exposure. If you can, cut 60 days to 14 or 30, or ask for a deposit. A deposit up front converts part of your risk immediately.
Write the due date out. “Net 30” means different things to different accounts teams, so one invoicing guide suggests a fixed date such as “Due 15 March 2026” instead.
Rounding is smaller but it causes arguments. Decide if you round per line or on the total, and say so. They give different answers. Example: three lines of 41.00 USD converted at 0.9255 each come to 37.95 EUR once rounded, so 113.85 EUR for the three. Convert the 123.00 total and you get 113.84. One cent, and a reconciliation query. Pick total-level rounding, state the rate to four decimal places, and be done.
Also watch currencies with different decimal conventions. The Japanese yen and Korean won have no decimal places in standard currency-code listings, while the Kuwaiti dinar and Bahraini dinar have three. A template built for two decimals will mangle them.
A short checklist before you send
Is the currency in words and as a code? Is the rate or the rate source written down? Is there a due date, not just a term? Does the contract say who carries a big move? For daily context, our grid of major pairs is refreshed hourly. Tax treatment of foreign-currency invoices is a job for your adviser.
Sources
- Limiting currency risk (Business.gov.nl)
- Exchange rate fluctuation adjustment, clause C3015C (Government of Canada, Buy and Sell)
- How to Invoice in a Foreign Currency (Invoicemaker)
- Currency codes and decimal places (Datatrans docs)
Checked: November 2026