Exhibit 99.1 Intercorp Financial Services Inc. Second Quarter 2023 Earnings Lima, Peru, August 9, 2023. Intercorp Financial Services Inc. (Lima Stock Exchange/NYSE: IFS) announced today its unaudited results for the second quarter 2023. These results are reported on a consolidated basis under IFRS in nominal Peruvian soles. Intercorp Financial Services: 2Q23 earnings of S/ 331 mm, up 7% QoQ and 47% YoY • Total revenues grew 15% YoY, banking NIM reaches 5.6% • ~10% YoY growth in fees from banking & payments ...