Investing for Your Child: Time Is Their Biggest Asset. Don’t Waste It.
A child born today has something no adult investor can buy back: decades of compounding ahead of them. The most powerful thing you can do is start early and build the habits that make wealth grow over a lifetime.
Most parents think about investing for their children as a financial decision. It is that. But it is also something else: a decision about habits, about what your child grows up understanding money to be, and about whether the gap between their generation and yours closes or widens.
The structure you choose matters. The amount you start with matters. But neither of those things matters as much as the moment you start. Because the one input into wealth building that is genuinely irreplaceable is time, and your child has more of it than anyone.
Your child’s biggest financial asset is time
Compounding is the process by which investment returns generate further returns over time. The longer money is invested, the more dramatically this effect accumulates. It is not linear. A dollar invested at birth does not just grow twice as much as a dollar invested at age 20. Under sustained compounding, the difference can be many multiples larger.
This is not a complex concept. But the numbers become genuinely striking when applied to a child’s time horizon.
The best time to start investing for your child was yesterday. The second best time is this week, not after six more months of research.
ASIC’s MoneySmart compound interest calculator lets you model this concretely. Entering a small monthly contribution over a 20 or 30 year horizon illustrates the effect in real numbers. The tool is free at moneysmart.gov.au and takes about five minutes to run.
What delay actually costs
Most people understand that starting earlier is better. Fewer people have actually sat with the numbers long enough to feel how significant the difference is. Behavioural finance research consistently shows that people underestimate how much compounding accelerates in the later years of a long investment horizon, and therefore underestimate how much the early years matter.
The numbers below are illustrative only, based on a hypothetical assumed return rate for a single lump sum over different time horizons. They are not a prediction of future returns. They exist to make the concept concrete, not to suggest any particular investment.
The MoneySmart compound interest calculator is free. Enter the same monthly contribution starting at age 0 versus age 10 versus age 18 and compare the outcomes at age 60. Most parents who do this exercise describe it as the most motivating five minutes they spend on this topic.
The habits that matter as much as the money
Opening an investment account for a child is one action. But research in financial psychology and child development consistently points to something that compounds alongside the portfolio: the financial habits and mental models children develop early tend to persist into adulthood. The parent who starts an account and never talks about it misses half the opportunity.
The following are not investment strategies. They are habit and education patterns that financial researchers and educators commonly associate with better long-term financial outcomes, regardless of how much money a family has.
A common approach is showing children their investment account balance from an early age and explaining, simply, what it is and why it grows. Children who can see money growing tend to develop a more concrete relationship with saving and patience.
Many financial educators describe the practice of separating money into spend, save, and give from a young age as one of the most effective early financial habits. It builds the mental model that money has categories before children ever have an income.
Research going back decades, including the well-known marshmallow studies on delayed gratification, links the ability to defer short-term rewards for longer-term outcomes with better financial and life outcomes. Practising waiting for things they want builds this capacity.
Children who understand from an early age that the brands they interact with every day are owned by shareholders, and that ownership can be bought and sold, tend to develop a more intuitive grasp of how markets work. Everyday examples make abstract concepts concrete.
One of the most valuable things a parent can do is show a child a market dip on a screen and explain calmly that this is normal, expected, and not a reason to panic. Adults who panic-sell during downturns often trace that behaviour to never having been taught what volatility is.
Behavioural finance research identifies automation and routine as more reliable than willpower for sustaining long-term financial habits. Families who treat a regular contribution to a child’s account as a non-negotiable routine, rather than something done when there is surplus, tend to sustain it longer.
Children who earn small amounts through age-appropriate tasks and track what they have, where it went, and what it is growing into develop a relationship with money as something they can understand and manage, not just receive and spend.
Research on goal-setting and motivation consistently shows that named, visible goals produce more sustained behaviour than abstract ones. Telling a child that “this account is for your first home” or “this is for university if you want it” gives the numbers meaning and the habit a purpose.
The structures: a starting point, not a decision
Several structures exist for investing on behalf of a child in Australia. Each has different tax treatment, complexity, and cost characteristics. The detail of each structure is genuinely a conversation for a licensed financial adviser and registered tax agent, because the right choice depends on your family’s contribution level, tax position, and goals. What is listed here is a starting point for that conversation, not a recommendation.
The main categories are: informal trust accounts (the most common, where a parent holds investments as trustee for the child), investment bonds and education bonds (which have their own internal tax treatment and do not require personal tax reporting), and investing in a parent’s own name with the intention of directing proceeds to the child later. Family trusts, micro-investing platforms, and superannuation exist as additional options with specific characteristics.
ASIC MoneySmart and the ATO both publish factual overviews of each structure. A licensed financial adviser and registered tax agent are the right people to assess which one fits your situation.
For most families starting out, the most useful first question is not “which structure is best in theory?” but “which structure will I actually maintain consistently over 15 years?” Consistency of contribution, sustained over time, tends to matter more than structural optimisation in the early years. A tax agent can help ensure whatever structure you choose is set up correctly from the start.
What people commonly do first
The families who get started fastest tend to do these steps in order rather than trying to resolve everything at once.
-
1
Run the compound interest calculator today Free today
Enter a small regular contribution starting now versus starting in five years on the MoneySmart compound interest calculator. See the difference in real numbers. This single step converts the concept from abstract to urgent for most parents who do it. -
2
Start the money conversation at home Free today
The habit of talking about money openly, at an age-appropriate level, is something that costs nothing and starts immediately. MoneySmart’s guide to teaching kids about money covers how to approach different ages and what concepts tend to land well at each stage. -
3
Book a session with a registered tax agent
A tax agent can explain the tax implications of each structure in the context of your expected contribution level and family tax position. Understanding the tax reality first, before choosing a structure, is consistently cited as the most useful preparation for the investment decision. The Tax Practitioners Board register lets you find and verify a registered agent. -
4
Engage a licensed financial adviser for the structural decision
Which structure, which platform, and how to integrate a child’s investments into a broader family financial plan are questions for a licensed adviser. The ASIC Financial Advisers Register lets you verify credentials before engaging. -
5
Start rather than optimise indefinitely
A common pattern among parents who act is starting with a simple structure and revisiting the details with a professional once the habit is established. The cost of choosing between two reasonable structures is small. The cost of extended delay while searching for the perfect answer is time that cannot be recovered.
Your child’s time advantage is real and it is finite. Every year that passes is compounding potential that cannot be recovered. The habits you build now, in yourself and in your child, are the foundation everything else sits on. If you want to build those habits alongside others doing the same, MSH is a free community built around exactly that.
Join free here →