If it’s a regular thing, I tell him it’s time to do the chore. Sometimes he wants to negotiate a different time. I’ll let him delay a bit, but eventually he has to do it. No more delay.
Sometimes I forget, and he gets out of it. Other times I tell him no delay at all allowed. It’s flexible, like life. I expect that over time, he will take on more responsibility for getting his own work done. It’s a process, though. He’s not quite a teen yet, but they call him a tween.
It’s kind of a game. But you know, I never wanted to do chores either, at his age. I was pretty selfish at his age, and didn’t see my role in the community. That came later. Maybe after I was in college, was I much more consistent with my responsibilities.
Some people believe in whipping boys into shape. It’s easy to get mad at teens because they can be so sullen and non-communicative. I’m not sure it’s worth the fight. Especially if they get it later on. But I will admit to getting pissed off at times. So I try not to let it get to me. I think if I remind myself that he is still really just a boy and if I remember what I was like back then, it will be less of an annoyance.