Financial projects and loans with different, decursive annuities, interest rates and capitalization periods with the use of excel

The authors of the paper have innovated and explored the theory of size relations of a financial project, the duration of its creation, the determination of its price, the duration of use and financing of the price of a project. The duration of use of a financial project has two planned time intervals. The first time interval is planned for repayment of the loan amount of the project price, and the second one is for acquisition of the planned profit. A new model of loan repayment is used – with different; decursive annuities, interest rates and periods of capitalization. The introduced theory was applied to calculations in the form of a financial project model using Excel.