Enter your idea

Not just the international fees need to be considered. I've enabled all options, as I want to give the customer whatever method suits them to pay if it means I then get paid quicker, it's worth it.

So while the new Australian credit card surcharge charges now coming in will affect how this system works and the costs we have to pay. I'll still allow all the options as I'd expect Stripe need to reduce their fees or we need to implement an alternative payment services.
So with the new rules, we can still charge surcharges on American Express, and would thus prefer to do so rather than being hit with their high fees.

So now Stripe also have ZIP pay too which has much higher charges, I do issue rather large invoices for equipment at times which the customer could use ZIP for if they want, but Xero doesn't apply the different surcharges to these different options. It should apply the variable fee based on which payment method they choose suits them.
Not sure what the new surcharge rules cover regarding payments via Afterpay/ZIP pay but understand they're excluded.

must be automatically define by the system which one is domestic, which one is international and apply the right rate. No need manual set up each time as we have customers all around the world. Xero and Stripe know country origin from the moment customers key in their card number

Yes please! This has been a pain point for us since we started using Xero.

Set up multiple surcharging rates by adding the same Stripe account as another payment service in Xero, for each additional rate i.e. domestic vs international