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How to Invoice International Clients (Currency, Tax IDs, Payment)

· · Reviewed by NestInvoice editorial team

Cross-border invoices fail for boring reasons: wrong currency, missing tax IDs, or a payment method the client cannot use. Lock those details in writing before you start the work, then make a PDF that matches the agreement.

Agree the commercial basics first

Before kickoff, write down billing currency, who pays transfer fees, payment method, and whether any sales tax / VAT / GST applies. Put the same terms on the invoice payment terms field later.

If you are still quoting, use an estimate first — see invoice vs estimate — then convert to an invoice when work is done.

Currency and country defaults

Open the country hub that matches your tax registration, or the market you are registered in. The editor supports many currencies — pick one and keep estimate and invoice aligned.

Show amounts in one currency on the PDF. If you mention an approximate FX rate in Notes, label it as approximate so AP does not treat it as the billed total.

Tax IDs and reverse-charge style notes

B2B cross-border work often needs both parties’ tax IDs and a short legal note when your rules require it (for example reverse charge). Exact wording is local — confirm with a tax adviser.

For UK/EU-style VAT fields, start from the VAT invoice guide. For a field checklist, use what to include on an invoice.

Payment rails that actually clear

List IBAN/SWIFT, local account details, or a payment link the client can use from their country. Add a timeline note such as “Allow 3–5 business days for international wire.”

Match the account name to the From name on the invoice when you can — mismatched names trigger bank holds.

Build the PDF

Follow how to create an invoice: unique number, dates, clear line items, tax only when it applies, then download PDF and send with a short email.

Disclaimer

Cross-border tax and FX rules are complex. This guide helps you format a clear client PDF; it is not tax, legal, or FX advice for your situation.

Related guides

Keep reading — these pages link the next steps in a normal billing workflow.

Try it free

Open the generator for this topic, edit in your browser, and download PDF — no account required. Drafts stay on your device.

Frequently asked questions

Which currency should I use?

The currency you quoted and they accepted. Do not switch mid-project without written agreement — FX surprises delay payment.

Do I always charge VAT on foreign clients?

No. Rules differ by country and B2B vs B2C. Some supplies need reverse-charge wording; others need local registration. Confirm with an adviser — this tool only formats the PDF.

Can I use country generators here?

Yes. Open a country hub for local tax labels and currency defaults, or a [simple generator](/templates/simple-invoice-template) and set the currency yourself.