Exhibit 99.1 FIRST SAVINGS FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE SECOND FISCAL QUARTER ENDED MARCH 31, 2024 Jeffersonville, Indiana — April 25, 2024. First Savings Financial Group, Inc. (NASDAQ: FSFG - news) (the "Company"), the holding company for First Savings Bank (the "Bank"), today reported net income of $4.9 million, or $0.72 per diluted share, for the quarter ended March 31, 2024 compared to net income of $3.7 million, or $0.54 per diluted share, for the quarter ended March 31, 2023 ...