The purpose of this thesis was to examine the disregard of one-man limited company for tax purposes and its fairness. During the years Finnish private limited company has been a working instrument for tax avoidance. This kind of activity has been limited with the disregard for tax purposes. During the past two decades institutions importance in Finnish tax system has been decreased as the tax rates have steadily lowered and the tax base has been consolidated. Currently there are no possibilities, with few exceptions, to gain tax benefits by using the limited company for entrepreneurial activities.

There are some fairness problems concerned with the disregard for tax purposes. Most of these problems can be seen affiliated with the fact that the institution is based on legal praxis. As the importance of the institution has been reduced, many of the problems have that were present in prior legal praxis, has been corrected. Fairness criticism can still be raised against the institution especially concerning the legal security and tax-paying ability principle.