At https://chargebee.com we support EU VAT along with Invoicing & all the comprehensive credits related use cases that consumes time for finance folks.

We do have a neat API https://apidocs.chargebee.com/. And there is Laravel bundle being updated by one of our customer in Netherlands.

https://packagist.org/packages/tijmen-wierenga/laravel-charg...

We support affiliates tracking with refersion.com - supported via Chargebee hosted payment pages & API.

We also support several gateways including Stripe, Braintree etc., along with Invoice based payments that can be reconciled for bank transfers (ACH equivalent in Europe is expected to release in early Q3).

Do give the free trial a spin. And the product is free to get started upto first $50k usd invoicing (just like Braintree's Ignite program). I would love to hear your feedback. (krish at chargebee).

Disclosure: I am one of the cofounders.