Parents usually ask this question too late. By the time a child is sixteen and asking for a phone, the money habits are already set.
The research is uncomfortably clear: most of our money behaviour — whether we save automatically, whether we spend to feel better, whether we avoid statements — is formed in childhood, well before anyone teaches us anything formally. Children do not learn money from lessons. They learn it from watching.
So the honest answer is: you started teaching them years ago. The question is what you have been teaching.
Three to five: money is a thing you exchange
At this age a child only needs one idea — you give something to get something. Let them hand the cash over at the shop. Let them see the change come back. That is the whole lesson.
Six to nine: money runs out
Give a small, regular amount. Weekly is better than monthly because the feedback is faster. Then do the hardest part: let them spend it badly and feel it. A child who blows a week's money on sweets on Monday learns more by Friday than any lecture could teach.
Three jars work better than one: spend, save, give. Physical jars beat apps at this age.
Ten to thirteen: money can wait
This is the age for waiting. Pick something they genuinely want and is genuinely out of reach, and let them save for it over weeks. Do not top it up at the end — that quietly teaches them that someone always covers the gap.
Start showing one real household number. The electricity bill. The cost of a tank of petrol. Children who know real numbers stop treating money as infinite.
Fourteen to seventeen: money has a plan
Now the picture widens. Show them how a salary turns into rent, bills, savings and the rest. Give them a monthly amount and let them manage it, including the mistakes.
This is the right age to explain interest — both directions. Money you save earns. Money you borrow costs. A credit card is a loan wearing a nice outfit.
Eighteen and beyond: money is theirs
Their own account. Their own record of what comes in and goes out. Your job changes from manager to adviser, and advisers only speak when asked.
Four things that matter more than any lesson
Let them lose small amounts. Cheap mistakes now prevent expensive ones later.
Say the reason out loud. "We are not buying this today because it is not in this month's plan" teaches more than "no."
Do not use money as a mood fix. Children notice when a bad day ends in a purchase.
Let them see you check. A parent who opens the numbers calmly every week raises a child who does the same.
The five-minute version
Once a week, sit with them and look at one real screen — what came in, what went out, what is left. Say one sentence about it. That is the entire curriculum, and it works at any age.
Hisaab makes that screen simple enough for a nine-year-old to read. Which is roughly the right test for any money tool.