The tax reforms undertaken in 1991 brought about profound changes in the Algerian tax system and allowed the development of instruments aimed at broadening the tax base. This has been achieved mainly through the adjustment of levy rates and measures to combat fraudulent practices, which have intensified with the emergence of new market realities, resulting from legislative and regulatory changes that have affected the foreign trade and price controls. 

In Algerian treaty law, the allocation of the right of taxation between the State of residence and that of the source of income is based on the concept of permanent establishment. In an increasingly open economic world, differences and coexistence of fiscal sovereignty can have harmful effects. It is to solve this problem that international tax law has emerged in order to guarantee the safety of the tax fairness.