Place the chicken at the bottom of the crockpot.
Add the black beans, diced tomatoes, frozen corn, chopped onion, chopped red bell pepper, and minced garlic.
In a bowl, whisk together the chicken broth, taco seasoning, ground cumin, chili powder, salt, and pepper.
Pour the broth mixture into the crockpot, ensuring that the ingredients are well submerged.
Cover and cook on low for 6-8 hours or on high for 3-4 hours, until the chicken is tender and the flavors have melded.
Using two forks, shred the chicken directly in the crockpot. Give everything a good stir to distribute the flavors evenly.