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Exhibit 99.1 Jack in the Box Inc. Reports Second Quarter FY 2021 Earnings ; Provides Fiscal 2021 Guidance ; Announces 10 Percent Increase in Quarterly Cash Dividend SAN DIEGO -- ( BUSINESS WIRE ) -- May 12 , 2021 -- Jack in the Box Inc. ( NASDAQ : JACK ) today reported financial results for the second quarter ended April 11 , 2021 and provided fiscal year 2021 financial guidance . Jack in the Box® total revenues increased 19 percent to $ 257.2 million , compared to $ 216.2 million in the comparable period ended April 12 , 2020 , driven by 20.6 percent growth in system same - store sales . Company same - store sales increased 14.5 percent in the second quarter , reflecting average check growth of 19.9 percent and a 5.4 percent decrease in transactions . Franchise same - store sales increased 21.3 percent . Increase / ( Decrease ) in same - store sales : Company Franchise System 12 Weeks Ended April 11 , April 12 , 28 Weeks Ended April 11 , April 12 , 2021 2020 2021 2020 14.5 % 21.3 % 20.6 % ( 4.1 ) % ( 4.2 ) % 16.5 % ( 4.2 ) % 15.9 % 10.4 % ( 0.1 ) % ( 0.9 ) % ( 0.8 ) % Net earnings more than tripled to $ 35.9 million , or $ 1.58 per diluted share , for the second quarter of fiscal 2021 , compared with $ 11.5 million , or $ 0.50 per diluted share , for the second quarter of fiscal 2020 , which was negatively impacted due to the initial onset of COVID - 19 .