In this study Tax System and Rates in the Republic of Kosovo and Their Comparison with the Balkan Countries. During the research, we have noticed that changes in tax rates, expansion of the taxable base, and creation of conditions for economic development which have constantly been changing in Kosovo and Balkan countries. Although the tax system in Kosovo is new, it is competitive not only in the region but even beyond it. In the new fiscal package of 2015, tax rates had changed. Personal Income Taxes have reduced some of the revenues, corporate taxation up to 10%, insurance companies 7% to 5%; VAT is applied with two tax rates 18% and 8%. Balkan states have significant differences in tax rates, but not in tax systems. In some taxes, high rates have already been set, while in some countries there are lower rates. It is characteristic and interesting that the tax systems of these countries have been constantly reformed, reducing tax rates and redefining the tax base.