Ages 4–7: 10–20 minutes per day across 2–3 small daily chores plus 1–2 weekly tasks. The point is reps, not hours.
Ages 8–12: 20–40 minutes per day across 3–4 daily chores plus 3–4 weekly tasks. Real accountability kicks in — a missed chore should have a real consequence.
Teens 13+: 30–60 minutes per day across 4–6 daily/weekly responsibilities, mixed with occasional larger tasks (mowing, deep-cleaning, batch cooking). The shift is from being assigned chores to taking ownership of what needs doing.
If your kid's total time creeps above these ranges regularly, prune the list. Long chore loads breed resistance and build the wrong association with helping.