It's completely understandable why those fees feel high and confusing! International payments, especially with cross-border transactions (US account, EU card, EUR currency), often involve several layers of fees that aren't immediately obvious.
Here's a quick breakdown of what might be contributing:
* **Cross-border/International Fees:** Even if EUR is enabled, a US Stripe account processing an EU card payment in EUR can incur cross-border fees. Stripe's pricing structure can vary based on the origin of the card and the country of your Stripe account.
* **Card Type (Visa Commercial/Business):** You hit on a key point! Business or commercial cards almost always have higher interchange fees than consumer cards, and these are passed on.
* **Apple Pay:** Generally, Apple Pay itself doesn't add extra fees; the fee structure is determined by the underlying card (Visa in your case).
* **Stripe Invoicing:** Stripe Invoicing doesn't add separate processing fees on top of the card processing fees, but the total amount (including your €8.99 fee line) is subject to the processing rate.
Manually dissecting these charges from individual transactions can be a real headache. Many merchants find their effective rate is higher than expected due to these nuances.
If you're looking for a clear, automated breakdown of your actual processing costs, effective rate, top fee drivers (like international cards or business cards), and even payout gaps, you might find a tool like **Stripe Fee Auditor (feeauditor.com)** really helpful. You just upload your Stripe Balance transactions CSV, and it gives you a detailed report in about 30 seconds, showing exactly where your money is going. It's designed specifically for merchants like you who want clarity on their Stripe fees.