Hi t46schell!
Thanks for reaching out to us. Let me assist you with the invoices.
You can send the invoices created in QuickBooks Self-Employed to your non-US clients. However, the invoices default to US dollars.
What I can suggest is you upgrade to QuickBooks Online. This has a multi-currency feature that can help you in managing your customers outside the US. In addition, it has more accounting features that businesses need. Please check this link for the pricing: https://quickbooks.intuit.com/pricing/.
Also, you can check the steps on how to convert your data from QuickBooks Self-Employed to QuickBooks Online through this link: Switch from QuickBooks Self-Employed to QuickBooks Online.
Here's another article you can check: Create invoices in QuickBooks Self-Employed. This shows you how to customize your invoices in QuickBooks Self-Employed and how to record a payment.
Leave a comment below if you need more help. Take care!