Kids

My youngest just doesn't get it. I have done everything I can think of from rewards to consequences to get him to do chores and do what he's told. He just does what he wants. He only acts remorseful when he's in trouble.
I give him allowance for doing chores, he says he does something and never touches it. I try to tell him he will pay me if he doesn't do it right or I end up doing it. Still doesn't work. I just don't know what else to do. I can't get through to him.