The aim of this thesis is the proposal of a framework for creation of a business plan for IT related projects. Emphasis is targeted on proposing usable framework evolved from theoretical findings. The first part describes the term business plan on theoretical level. Moreover, the first part includes the development of IT investments in start-up projects. The second part relates to a new proposed framework for creation of a business plan for IT related projects, based on the outcomes from the first part. The third part describes practical example of the proposed framework. It includes the Executive Summary and the complete business plan for the IT start-up project (specifically area of hardware installation, configuration and sales), based on the new framework.