The difference between taco seasoning and chili seasoning is in the taste and the ingredients that the seasonings are made from.
Taco seasoning is made by mixing together chili powder, garlic powder, onion powder, red pepper flakes, oregano, paprika, cumin, salt and pepper.
Chili Seasoning is made of a blend of cumin, paprika, and chili powder.
You can use taco seasoning in chili if you want too or you can also use chili seasoning in tacos.
But if you want to make the perfect chili or the perfect tacos you should use the taco seasoning or the chili seasoning for the recipes.
But you can substitute either of those seasonings in recipes that you want too and it will turn out good enough.