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We Love Our Kids—But How Much Do They Delay FI?

Children bring joy and meaning, but they also change your financial independence timeline. Here's how to think about the tradeoffs.

June 1, 2025
8 min read
We Love Our Kids—But How Much Do They Delay FI?

Introduction

We all love our kids. They bring joy, meaning, and a surprising amount of sticky fingerprints to our lives. But if you're on the path to Financial Independence (FI), you might find yourself wondering: Just how much do these adorable little humans delay my escape from the rat race?

Don't worry—this isn't a cold calculation of "kids vs. freedom." It's more like a friendly peek at the numbers, with a wink and a nudge. Because while kids change the financial equation, they also change your heart (and your sleep schedule).

Meet Alex and Jamie

Let's meet our fictional couple, Alex and Jamie. They're 30, gainfully employed, and blissfully unaware of how much applesauce can end up on the ceiling.

ALEX

30
Briefcase iconSoftware Engineer
Alex and Jamie illustration

JAMIE

30
Book iconPublic School Teacher

HOW MUCH THEY EARN

$130,000
$54,000
TOTAL - $184,000

HOW THEY SPEND

Mortgage & Insurance & Taxes
$36,000
37.5%
Food & Lifestyle
$25,000
26.0%
Transportation
$13,000
13.5%
Travel & Hobbies
$13,000
13.5%
Essentials
$13,000
13.5%
ANNUAL TOTAL – $96,000

ASSETS

Home Equity Icon
Home (Equity)
$100,000
($600,000 home / $500,000 mortgage)
Retirement Icon
Retirement
$145,000
(401k + Traditional IRA + Roth IRA)
Checking Icon
Checking/Savings
$10,000

Their Path to FI—No Kids

With a combined income of $184,000, moderated spending and some smart financial moves, Alex and Jamie are on track to reach financial independence in 18 years. That means retiring at age 48, with enough assets to support their $7,000/month retirement lifestyle indefinitely.

18 Years
No Kids Scenario
FI at age 48
Plenty of time for hobbies, travel, and learning how to fold a fitted sheet.

What Happens When Kids Enter the Picture?

But life has other plans. Three years later, Alex and Jamie welcome their first child. Suddenly, the financial landscape changes dramatically. Let's see what happens to their FI timeline when they add one adorable, expensive little human to the mix.

Scenario: Adding One Kid

What Changes:

  • College Savings: $28,500/year for 4 years (future public college)
  • Living Expenses: +$1,500/month (for diapers, childcare, and mysterious "kid stuff")
  • Retirement Expenses: +$500/month (increased expenses for travel, etc)

More bedtime stories, more sticky hugs, and yes... a longer wait for financial freedom.

The Impact on FI Timeline

No Kids18 Years (Age 48)
One Kid26 Years (Age 56)
0 years15 years30 years
26 Years
One Kid Scenario
FI at age 56
+8 Years Delay
But also 8 extra years of bedtime stories and sticky hugs.

Bonus Round: What About Two Kids?

If Alex and Jamie decide to have a second child, the math gets even more interesting. Double the college costs, higher living expenses (+ an additional $500/month), and retirement expenses (+ an additional $500/month) push their FI timeline to 29 years—retiring at age 59.

29 Years
Two Kids Scenario
FI at age 59
+11 Years from Original Plan
Twice the macaroni art, twice the giggles.

Kids Change Your FI Journey—And That's Okay

Kids are a blessing, a challenge, and occasionally the reason you find crayons in the washing machine. Yes, they change your FI journey—but they also make the journey a lot more interesting.

Want to see how your timeline changes with kids? Try our scenario planner and model the tradeoffs for your family. And remember: the best things in life aren't always early retirement—they're the ones calling you "Mom" or "Dad."

Ready to Optimize Your Path to Financial Independence?

Use MoneyOnFIRE's calculator to see exactly how different strategies affect your timeline to FI.