Nowadays, with more people aware of the adjustment of the national economy. At the same time, there are several prerequisites to national regulation does not undermine development. The condition can be prudent management policy objective the objective of implementing fiscal policy, competence analysis, resources (money and people) sufficiency. The Latvian economy is different types of changes that are associated with the accession of Latvia to the European Union. The changes also were affected by the tax system.Tax policy stability, consistency and prognozejāmīb is one of the factors of economic subjects ' rational action which directly or indirectly have focused on domestic and economic sustainable development. National fiscal policies, taxation system and the ongoing processes of the economy is changing and being analyzed continuously, but not peiciešam to note that the process should be directed to the State and the welfare of their population levels.