The system is smart enough to know VAT rate, currency, banking information required etc for each country.
I sincerely wish you the best, but I would advice being careful with any such statement because getting it wrong means a lot of pain for your customers that trusted your word.
I did this for a company developing retail software closely related to SAP and still have some PTSD from time to time.
Thats why i made the free trial, so users can see what it is before they pay. I never want to take money from anyone if i cant provide value.
Please forgive me for not having the perfect product. I just launched it.