How to make the proposal of tax codes automatic?

Dear,

I was wondering whether their exist some best practices concerning the following:

• When creating a purchase order, it would like that the correct tax code is automatically be proposed. However several parameters need to be taken into account:
• Different types of tax codes should be triggered based on:

1) Is it a good or a service

2) Is the country of the vendor the same as my country

3) if the country of the vendor is not the same than my country, is the country within europe or outside of europe

Thank you in advance