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Exhibit 99.1 Jack in the Box Inc. Reports First Quarter FY 2021 Earnings ; Declares Quarterly Cash Dividend SAN DIEGO -- ( BUSINESS WIRE ) -- February 17 , 2021 -- Jack in the Box Inc. ( NASDAQ : JACK ) today reported financial results for the first quarter ended January 17 , 2021 . Increase in same - store sales : 16 Weeks Ended January 17 , 2021 January 19 , 2020 Company Franchise 7.5 % 2.9 % 13.0 % System 12.5 % 1.6 % 1.7 % Jack in the Box® system same - store sales increased 12.5 percent for the quarter . Company same - store sales increased 7.5 percent in the first quarter driven by average check growth of 21.2 percent while transactions decreased 13.7 percent . Darin Harris , chief executive officer , said , " Our ongoing strategy continues to resonate with our guests with same - store sales significantly outperforming our peers . We saw strong same - store sales growth across all dayparts , with average check driven by premium products , including the launch of our new chicken sandwich and strips . This momentum has continued into the second quarter of 2021 , with two - year trends through the first four weeks of the quarter remaining consistent with the first quarter . " Net earnings were $ 50.9 million , or $ 2.21 per diluted share , for the first quarter of fiscal 2021 compared with $ 7.9 million , or $ 0.33 per diluted share , for the first quarter of fiscal 2020 .