Invoicing a local client is simple. Invoicing someone in a different country, in a different currency, under a different tax system? That's where things get complicated fast.

Here's what you need to know to invoice international clients professionally — and actually get paid.

Choose the Right Currency

First decision: which currency? You have options. You can invoice in your local currency, the client's currency, or a neutral currency like USD. Most freelancers invoice in USD or EUR for international clients, since those are widely accepted and stable.

The risk of invoicing in your local currency is that your client has to deal with conversion and may push back. The risk of invoicing in their currency is that exchange rate fluctuations affect what you actually receive. USD or EUR is usually the safest middle ground.

State the Currency Clearly

Don't just write '$500' on an invoice going to a Canadian client — that's ambiguous. Write 'USD 500' or 'US Dollars 500.00' explicitly. Ambiguity here causes disputes and delays.

Understand the Tax Situation

This varies significantly by country and your business structure:

• If you're VAT registered in the EU, you may need to apply reverse charge mechanisms for B2B international sales
• Many countries have GST or VAT that may or may not apply to exports
• In many cases, international B2B services are zero-rated for tax purposes

When in doubt, consult a local accountant or tax advisor. Getting this wrong can be costly.

Use Payment Methods That Work Internationally

Bank transfers work but can be slow and expensive across borders. For international clients, consider:

• PayPal: Widely accepted, but fees can be high for international transfers
• Wise (formerly TransferWise): Excellent exchange rates, lower fees than banks
• Stripe: Great if you want clients to pay by card
• SWIFT Transfer: Standard for larger amounts; requires your IBAN and SWIFT/BIC code

Time Zone Considerations

Set your payment due dates in the client's time zone, or specify UTC. A due date of 'May 15' means different things to someone in New York versus someone in Singapore. Being specific avoids confusion.

Keep Records of Everything

International transactions are more likely to be scrutinized during tax audits. Keep copies of all invoices, payment confirmations, and any relevant correspondence. Most invoice generators let you download your invoices as PDFs — store them somewhere organized.

International clients can be incredibly valuable. Getting the invoicing right from day one means no awkward conversations later — just smooth payments across borders.