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Welcome Back, Fellow Parent
Last issue, we went hunting for sneaky subscriptions. If you did the audit, there's a decent chance you found $100 or more a month you were spending on things nobody in your house was using.
So today's question is: what should that $100 do instead?
Because here's something most parents never get told: $100 a month, started early and left alone, can turn into one of the most meaningful gifts you ever give your kids. Not a lottery-ticket fantasy. Just boring, reliable math.
The Math That Changes Everything
Here's what $100 a month becomes over time at different rates of return:
Years | Stuffed in a Drawer (0%) | Savings Account (~4%) | Invested (~7%) | Invested (~10%) |
|---|---|---|---|---|
5 years | $6,000 | $6,630 | $7,159 | $7,744 |
10 years | $12,000 | $14,725 | $17,308 | $20,484 |
18 years | $21,600 | $31,559 | $43,072 | $60,056 |
25 years | $30,000 | $51,413 | $81,007 | $132,683 |
Look at the 18-year row, because that's birth to high school graduation.
You'd put in $21,600 of your own money. Invested at a 7% average return, it could grow to about $43,000. Roughly half of that is money you never had to earn. Compound growth did the work.
(Quick note: returns aren't guaranteed, markets go up and down, and 7% is a long-term historical-style assumption, not a promise. But the principle holds.)
⏰ The Cost of Waiting
Here's the part that stings a little.
Start at birth, invest $100/month at 7% until age 18: ~$43,000
Start at age 10, same $100/month, same 7%, until age 18: ~$12,800
Same monthly amount, but waiting ten years costs you about $30,000 in the final balance. The most powerful ingredient in this whole recipe isn't the amount. It's time.
If your kids are already older, don't panic. Starting now always beats starting later. But if you have a newborn or a toddler, today is the best day you'll ever get.
🤯 The "Leave It Alone" Kicker
Now for my favorite number in this entire newsletter.
Say you invest $100 a month from birth to 18, ending with about $43,000. Then your kid never adds another dollar and never touches it. They just let it keep growing at 7% until age 65.
That $43,000 could become roughly $1.1 million.
(That's in future dollars, so inflation will make it feel smaller than it sounds today. But still, a seven-figure retirement head start from $100 a month.)
That's what generational wealth actually looks like. Not a trust fund. Just a parent who started early and a kid who learned not to touch it.
Where to Put Your $100
This is where most parents get stuck. There are several good options, and each one does a different job:
Account | Best For | Key Perk | The Catch |
|---|---|---|---|
High-Yield Savings | Short-term goals, emergencies | Safe, flexible, easy access | Barely beats inflation over the long run |
529 Plan | College and education | Tax-free growth for qualified education costs; many states offer a tax deduction | Penalties if used for non-education expenses |
Trump Account | Long-term growth for kids under 18 | Tax-deferred growth; $1,000 government seed for kids born 2025–2028 | Locked until 18, then follows IRA rules |
Custodial Roth IRA | Teens with a job | Tax-free growth for decades | Your kid needs earned income |
Custodial Brokerage (UGMA/UTMA) | Flexible investing for any goal | No restrictions on how money is used | Becomes your kid's money outright at 18 or 21 |
Let's break those down.
🎓 The 529 Plan: The College Workhorse
If college (or trade school) is on your radar, the 529 is still the heavyweight champ. Money grows tax-free, and withdrawals for qualified education expenses are tax-free too. Many states, including Pennsylvania, give you a state tax deduction for contributing.
Bonus: under newer federal rules, leftover 529 money can in certain cases be rolled into your child's Roth IRA, subject to limits. That makes the "what if my kid doesn't go to college?" worry a lot smaller.
The KMONEY move: Check your own state's plan first. The state tax deduction alone can be worth an instant return on your money.
🇺🇸 Trump Accounts: The New Kid on the Block
This is the biggest new thing in kids' finance in years, and a lot of parents still haven't heard about it.
Trump Accounts launched this July. They're basically a special IRA for kids under 18. The headline perk: U.S. citizen children born between January 1, 2025 and December 31, 2028 are eligible for a one-time $1,000 government deposit.
A few things to know:
Parents, grandparents, friends, and even employers can contribute, up to a combined $5,000 a year.
The money is invested in low-cost stock index funds with fees capped at 0.10%.
Withdrawals are generally locked until the year your child turns 18. After that, it becomes a regular traditional IRA, with the usual rules and potential penalties for early withdrawals.
It's not automatic. You have to elect it (IRS Form 4547), and plenty of eligible families haven't signed up yet.
The KMONEY move: Have a baby born in 2025 or later? At minimum, claim the free $1,000. Leaving free money on the table is the one mistake I'll lecture you about.
💼 Custodial Roth IRA: The Teen Superpower
Once your kid has a real job (lifeguarding, babysitting with records, working at the pizza place), they can have a Roth IRA. Money goes in after tax and grows tax-free forever.
Here's the family hack: your teen can keep their paycheck, and you can "match" their earnings by contributing to the Roth for them (up to what they earned). It's the best "401(k) match" they'll ever get.
📈 Custodial Brokerage: The Flexible Option
A UGMA/UTMA account lets you invest for your kid for any purpose, with no education strings attached. The trade-off is that the money legally becomes theirs at 18 or 21 (depending on your state), whether or not they're ready for it.
The KMONEY move: Great option if you want flexibility, but be honest about how responsible you expect your 18-year-old to be.
Three $100 Plans, By Kid Age
There's no perfect split. But here's how I'd think about it:
👶 Newborn to 5 years old
Claim the $1,000 Trump Account seed if eligible
$50/month → 529 plan
$50/month → Trump Account or custodial brokerage
Why: Maximum time for compounding. This is your golden window.
🎒 Ages 6 to 12
$75/month → 529 plan
$25/month → High-yield savings for near-term kid costs (camps, braces, sports)
Why: College is getting closer, and a small cash cushion stops you from raiding long-term money.
🧑 Teens (13 to 17)
$50/month → 529 plan (still worth it, even late)
$50/month → Match their job earnings in a custodial Roth IRA
Why: Rewards work, teaches investing, and gives decades of tax-free growth.
Where to Find the $100
If $100 feels like a stretch right now, here are some places it tends to hide:
Subscription savings: Last issue's audit found the average family could free up $120–$150 a month.
The Child Tax Credit or tax refund: Divide it by 12 and you've funded a year.
Birthday and holiday money from relatives: Try a "half and half" rule, where half gets spent and half gets invested.
Grandparents: Many would love to contribute but don't know how. Most 529 plans have gift links you can share, and Trump Accounts accept family contributions too.
Start with $25: Seriously. $25 a month beats $0 a month forever. Increase it every time you get a raise.
Make It Automatic (This Is the Whole Secret)
The families who actually build wealth aren't more disciplined than you. They just removed willpower from the equation.
Set up an automatic transfer the day after payday. If the money never hits your checking account, you won't miss it.
Pick investments once (an age-based 529 portfolio or broad index fund works fine) and stop checking it every week.
Bump it up yearly. Every birthday, raise the contribution by $10. You won't feel it, but your kid will.
Don't panic when the market drops. Down markets mean your $100 buys more shares. Stopping contributions in a downturn is the most expensive mistake long-term investors make.
Make It a Family Lesson
Show your kids their account. Seriously.
Once a year, sit down and look at the balance together. Show them how much you put in versus how much it grew. Kids who see compound growth in action with their own name on the account learn a lesson no school class can teach.
For older kids, let them help pick between two or three index funds. You'll be amazed how quickly "can I have Robux?" becomes "wait, how much would that be worth in 20 years?"
Common Mistakes to Avoid
Waiting for the "right time." There isn't one. Time in the market beats timing the market.
Keeping long-term money in cash. A savings account is great for short-term goals, but over 18 years, inflation eats it.
Skipping your own retirement. Your kids can borrow for college. You can't borrow for retirement. Make sure your own 401(k) match is covered first.
Missing free money. State 529 tax deductions, the Trump Account seed, employer contributions: grab every one you qualify for.
The Bottom Line
$100 a month won't change your life this month. You won't even notice it.
But 18 years from now, it could be your kid graduating with a paid-for semester, a down payment fund, or a retirement account that's already doing the heavy lifting. And they'll have learned from watching you that wealth isn't about how much you make. It's about what you do consistently with what you have.
That's the whole plan. Small, boring, automatic, and powerful.
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Thanks for reading today's newsletter! I hope it gets you one step closer to starting (or growing) your kids' future fund.
Hit reply and tell me: have you opened a 529, a Trump Account, or anything else for your kids yet? What's holding you back? Your answers help shape future issues.
This newsletter is for educational purposes only and isn't financial, tax, or investment advice. Talk to a qualified professional about your family's situation.
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