Yes, the invoice should be vatable, @Fiona. I'll provide more information about the VAT code you can use on your sales transactions.
Since you provide services to Poland, which is a European based VAT-registered customer, you can use the ESZ (European Services Zero) or EGZ (European Goods Zero) when invoicing. This means that there's no VAT charged.
Although Poland and the UK belong to the same continent, they have their own currencies. However, QuickBooks only recognizes the home currency. In this case, you'll need to convert the amount so you can record it in the system. You can read about working with exchange rates to learn more about this.
For additional information, I'm including some helpful articles that you can check about different VAT codes and how to use this feature:
Once done, you'll want to run a report to see what exceptions QuickBooks made for you: VAT exceptions and reports in QuickBooks Online.
If you have other inquiries or vat concerns, let me know in the comments below. I’ll be around to back you up. Have a great weekend ahead.
