This publication develops the topic of fintech financing in MSMEs, which is of utmost importance for companies, since fintechs provide benefits that allow streamlining digital financial processes and managing financial capital in an adequate manner, with which companies can guarantee a safe, fast and effective service. This book is structured in five chapters in which topics such as liquidity and fintechs, their importance and classification, liquidity indicators, etc. are developed. It also explains the financing of fintechs in Peru and their impact on the financial sector, their national expansion, the Peruvian legal framework and their impact on business innovation. The research also aims to analyze the financing of fintechs that have an impact on the liquidity of MSMEs located in Lima. It was concluded that the liquidity of Lima's MSMEs is directly influenced by Fintech financing, since Fintechs promote financial inclusion, reduce the inequality gap and promote productivity, growth, profitability, positioning and business innovation.