It is the software that allows you to draw, by yourself, your 4-year economic and financial budget for your own company. You may use it to assess your business idea and to assess the cost-benefit ratio, the profitability, the financial feasibility and the needs for capitals for the company you want to create. Budget 2.1 has been developed by Accountant and Auditor to offer consultancy to one's own customer companies. All the company consultants may use it to create endless budgets for their customers. Budget 2.1 allows you to know which are the financial needs to manage your company at every moment of its life, so you will be able to decide on the technical form, on the time and size of the financing sources necessary or the form and length of the investments and the liquidity you have at your disposal. You will be able to assess whether the company, as you thought it, will be profitable enough or will only produce losses and so you will be able to abandon your idea or organize it in a different way.