Calculating the total tax burden of an individual entrepreneur or LLC using the 9X service requires the entrepreneur to enter business parameters and takes no more than 5 minutes.The comparison involves two types of simplified taxation system, two types of automated simplified taxation system, patents, as well as a professional income tax.Tax holidays and preferential rates for relevant types of economic activity in the regions are taken into account.The current billing period is 2022, taxes and fees are calculated in accordance with federal and regional legislation.The results provide not only the final total tax burden, but also a complete algorithm for calculating all taxes and fees.