Exhibit 99.1 Intercorp Financial Services Inc. First Quarter 2023 Earnings Lima, Peru, May 10, 2023. Intercorp Financial Services Inc. (Lima Stock Exchange/NYSE: IFS) announced today its unaudited results for the first quarter 2023. These results are reported on a consolidated basis under IFRS in nominal Peruvian soles. Intercorp Financial Services: 1Q23 recurring earnings of S/ 308 mm impacted by CoR and investment results • Recurring revenues grew 21% YoY, banking NIM reached 5.5% • Diversified fee income ...