Cooked chicken: You have a little more time, but not much. According to recommendations from the U.S. Food and Drug Administration, cooked chicken will keep in the refrigerator for about 3-4 days. (Same goes for turkey and other poultry.) If you store cooked chicken in the freezer in a sealed, freezer-safe container or vacuum-sealed package, it can stay safe to thaw and eat for up to 4 months.
How to tell if chicken is bad -- whether it's cooked or raw
There are a few ways to make sure the chicken you've thrown in the fridge has gone bad or not. The tests for raw vs. cooked chicken are similar, but not the same. Here's a couple of handy acronyms by yours truly to help you remember: the SPOT© test and the SMOT© test. (Catchy, I know!)