johno

Thanks for your reply. I thought it was strange. WHMCS is so complete but does not have a simple option like that. Keep me posted on your mod

I disagree, I have 2 Dutch payment methods that allow that so you are mistaken. So that is why I need a how to I also saw the tax remark but that is not handy, especialy when you work with companies. But if you want to use companys that do not allow you to charge extra, you can turn it around. You make discounts for a certain payment method. On one payment you get a larger discount than another payment method.

I disagree. It is a big miss in the system. I am disappointment, because I was looking for a how to instead of a why implement it. I want to be able to charge different fees for each transaction because I use several payment methods. The rate for billing changes between 75 cents and 5 euro. The other reason why I want to make clear what they pay me and what extra costs are made for billing so that in a case of a refund the customer knows why costs are made.