Can I afford a kid on $100k income? (single)
Elena, 32, in Denver, CO
exampleSingle, first baby on the way · $100k/yr household income
They're expecting their first child in Denver and bracing for what it does to the budget.
A baby doesn't just change your sleep schedule. For Elena, a single earner in Denver expecting her first child, the real question isn't whether she loves the kid, it's whether $100k a year can absorb $418k in lifetime costs without derailing the retirement she's already building.
The setup
Age
32
Household income
$100,000/yr
Household
Single earner
Liquid savings
$32,000
Retirement savings
$96,000
Investing return
7%/yr
Financially feasible, your plan absorbs it
$418k
Total lifetime cost (lifestyle + education, inflation-adjusted)
Daycare (0–5)
$1,200/mo
Lifestyle bump
$82k
Education (life)
$336k
Savings w/ kid
43% → 26%
The math is tighter than most people expect but it holds. Daycare alone runs $1,200 a month for the first five years, and the full lifestyle bump adds another $82k on top of that before you get anywhere near college. What makes Elena's plan workable is that her savings rate drops from 43% to 26%, not to zero. That 26% is still doing real compounding work, and her $32k in liquid savings plus $96k already in retirement accounts means she enters this with a cushion most first-time parents don't have.
The total lifetime cost is roughly $418k, about $82k in extra day-to-day lifestyle spending and $336k in out-of-pocket education (daycare through college), all inflation-adjusted. Having a child next year reduces your retirement NW from $8.7M to $7.1M, but your plan still works without shortfall.
| Scenario | Timing | Retire NW | Retire SWR/mo | Shortfall | NW Impact |
|---|---|---|---|---|---|
| No kid | No new child | $8,715,438 ($3.3M in today's dollars) | $29,051 | None | — |
| 2027 | Have a child next year | $7,062,024 ($2.7M in today's dollars) | $23,540 | None | -$1.7M |
| 2029 | Have a child in 3 years | $7,181,748 ($2.7M in today's dollars) | $23,939 | None | -$1.5M |
| 2031 | Have a child in 5 years | $7,293,148 ($2.7M in today's dollars) | $24,310 | None | -$1.4M |
This analysis includes $336k in engine-modeled out-of-pocket education (daycare through college, inflation-adjusted, net of any 529 draws). Many families use student loans, scholarships, 529 plans, or community college to reduce this. Without college funding, the financial impact is significantly lower. The decision to start a family involves deeply personal considerations that no spreadsheet can capture.
The numbers say go, but your numbers might say something different, so model your own household before you assume the verdict is the same.
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Get my verdict →Frequently asked
Can a single household earning $100k afford a kid?
Financially feasible, your plan absorbs it
Total lifetime cost (lifestyle + education, inflation-adjusted)
$418k, modeled with Rightmont's projection engine for this exact scenario.
How was this calculated?
Rightmont runs your numbers through a year-by-year projection engine (taxes, compounding, Social Security, and your real cashflow) to model the outcome. Model your own version free in under a minute.
For educational purposes only, not financial advice.