Definition: What is it ?
An association is a way of specifying how tax authorities can be linked to each other.
What is it used for?
It can be used in the situation where the tax structure is hierarchical (eg city tax, plus county tax plus state tax).
NOTE: Not sure why this is any different from having separate tax authorities and not associating them. They can still all post the to same GL account....... Maybe it could be good for EU where each country tax authority is associated to the other (internal to EU + external to EU???)
What's on the screen?
To do 