Taxation has an economic and a legal side, each of which is discussed within FEI and ESAA. For the modern business economist, the field of taxation is a fundamental support field. This is due to the fact that it has become apparent that his branch of business cannot be hidden in the legal apartment.

Fiscal Economics
The economic side of taxation is concerned with quantifying and controlling the risks associated with reorganizations. Furthermore, interaction with the field of accountancy is of great importance. The tax advisor provides a correct determination of the fiscal position in the annual statement. The management of a corporation should view this from a critical perspective and be able to guide this. In order to accomplish this, it is necessary to understand how taxation and accountancy are intertwined. For instance, what are the differences between accounting rules? Moreover, how do you know whether all the documentation requirements have been met?

Tax law
With regards to taxes, the legal aspect is of importance when managing risks by monitoring the legal titles under which business happens and provisions from realized contracts. Another important aspect is the settlement of a dispute with the tax authorities, for both small and large companies. Hence, it is of importance to be aware of courses of action which prevent discussions, such as rulings. If this is not sufficient consultation procedures are possible, as a result, a lawsuit is not the only possible consequence of dispute with the tax authorities.