If properly stored in an airtight container, cooked chicken can last up to seven days in the refrigerator. It can last up to one year stored in the freezer.
If the chicken is prepared in a dish, the chicken is likely to last only as long as the ingredient with the shortest expiration date. Leftover roasted chicken can last up to seven days in the refrigerator and up to six or eight months in the freezer. Raw chicken can last one to two days past the sell-by date on the package in the refrigerator and up to one year in the freezer.