Compare similar life situations, assumptions, and retirement tradeoffs.
United States
Family
NYC couple: can you Coast FIRE by 45?
For: NYC dual-income couple (35), renters, high income/high rent, aiming to Coast FIRE by 45
Can a high-rent NYC couple ease into Coast FIRE by 45 without leaving the city? This scenario compares pushing longer, coasting earlier, and absorbing.
For: Single US worker (52), behind on retirement savings, weighing 401(k) catch-up contributions against financial support for aging parents
A 52-year-old behind on retirement can still help aging parents, but the plan usually needs a hard monthly cap, a separate emergency reserve, and no early.
US women at 45: close the childcare retirement gap?
For: 45-year-old US woman with childcare-related career breaks, interrupted retirement contributions, and a family budget that still needs resilience
After childcare and career breaks, the gap can still narrow, but the plan usually needs full-time earnings, a cash buffer, or a written household reset.
Should a Chicago family in its late 30s lean harder toward 529 plans now, or protect retirement momentum first? This comparison looks at three savings paths for two school-age kids across lower, middle, and stronger long-run real return cases.
The question comes up constantly for families with kids: should we fund 529 college accounts now, or keep the extra money in retirement accounts first? Both goals matter deeply, and the answer almost always involves tradeoffs that compound over decades.
This comparison models a Chicago-area dual-income household, both partners age 37, with two school-age children. The family has $85,000 already saved for retirement and room for a modest-to-strong long-term savings push after housing, childcare, food, transport, and debt minimums. That setup sits inside the research brief's broader $140,000-$220,000 gross-income band and roughly $8,500-$11,000/month family-spending range. It compares three allocation strategies across three return environments.
Starting point: both parents age 37, $85,000 already in retirement savings, January 2026
Retirement horizon: retire at 67, model runs to age 90
Return cases: weaker, middle, and stronger long-run real-return environments rather than a single forecast.
Retirement income anchor: Social Security couple planning anchor at $4,200/month (combined; replace with your own estimate)
Retirement spending in the preset: the lower-, middle-, and stronger-return branches now use core retirement budgets of $6,500, $7,500, and $8,500/month respectively, plus a later-life care step-up from age 82 onward. That keeps the scenario inside the research-backed post-kids $6,500-$8,500/month band while still stress-testing heavier support and care costs late in life.
Keep 529 saving modest while retirement saving stays strongest, protecting more long-run compounding. This is the path that treats college help as important, but secondary to keeping retirement momentum intact.
In the retirement-first path, most of the long-term savings budget stays with retirement while 529 funding remains modest.
Split the surplus more evenly so college gets real funding without giving up steady retirement progress. This is the middle path for families who want to help with tuition but do not want the full plan to depend on a big later catch-up.
The balanced path keeps meaningful contributions going to both goals without leaning too hard in either direction.
Push harder on 529 funding while the children are young, then rely on a later retirement catch-up once the college-saving push ends. This path puts more faith in future income growth and in having enough time left for the step-up to matter.
The college-leaning path shifts more of the early savings budget toward education, then relies on a stronger retirement catch-up later.
All amounts are in today's dollars. The simulator uses a real return so you can think in purchasing power.
College saving is shown as money leaving the retirement side of the plan. In this comparison, 529 contributions are treated as dollars redirected away from retirement assets into a separate education bucket, so the balances shown here are the household's retirement assets rather than the college account balance.
Each path also absorbs several real-life shocks along the way — a midlife home repair, two car replacements, a medical hit in the early 50s, and a larger late-life care reserve — so the comparison does not assume a perfectly smooth journey.
The college-leaning path sacrifices the most compound growth in the early years — when returns have the longest runway — but partially catches up through the post-50 step-up. Path A builds the largest retirement reserve; Path C builds the most college funding.
In the middle case, the retirement-first path reaches age 67 with about $1.39M, including roughly $588k of investment growth before retirement. The college-leaning path reaches about $1.02M, including roughly $393k of pre-retirement growth. That earlier growth gap is why the later catch-up only closes part of the distance.
At a glance across all nine variants:
Path A (retirement-first) generates the highest retirement capital under all three return assumptions. The gap widens as returns improve.
Path C (college-leaning) generates the lowest retirement capital during accumulation but step-ups later. In a pessimistic return environment, the catch-up is less effective.
Path B (balanced) sits in the middle throughout. It's the least extreme choice in either direction.
This comparison answers three practical questions:
How much does the more college-heavy path cost the family's retirement outcome versus keeping 529 saving modest?
Does the later step-up close enough of the gap in middling or stronger markets to justify the earlier tradeoff?
How much do the results change when long-run returns disappoint?
The standard US financial guidance framing — secure the oxygen mask on yourself first — has real math behind it. Retirement savings benefit from tax-deferred compounding from day one, and money contributed in your late 30s has roughly 30 years to grow before retirement. College starts in 10–13 years.
A parent who underfunds retirement cannot borrow for it later. A child who receives partial college funding has more options: merit aid, loans, work-study, or a lower-cost school. Neither of those is ideal — but one is recoverable and one may not be.
This path is easiest to pair with a match-first rule: secure employer-match dollars before sending extra cash to a 529.
The balanced path reflects the reality that modest per-child 529 contributions still benefit from time. Starting in the late 30s gives the money roughly 10–13 years to grow before tuition bills arrive. Modest but consistent contributions can cover a meaningful portion of college costs — enough to keep student loan debt manageable without gutting retirement.
For families where both partners have access to solid employer matches and are already on track with retirement, shifting more to 529s from the start is lower-risk than for families starting from a weaker retirement base.
The college-leaning path is an explicit bet on future income: contribute aggressively to 529s now, then accelerate retirement saving once college funding winds down around age 50. It works best if:
The family expects real income growth through their 40s
They can sustain the lower retirement saving rate for 12+ years without panic
Real returns cooperate enough for the step-up to matter
The risk: 12 years at low retirement saving rates is a long time to be behind the compounding curve. In a pessimistic return environment, the step-up starting at 50 has fewer years at the higher rate and earns lower returns on the catch-up capital.
Employer match strength: if both partners have solid 401(k) matches, skipping retirement contributions means leaving subsidized saving on the table. That makes the retirement-first path harder to argue against.
How far along retirement already is: a family with a larger balance, a pension-like backstop, or a later college timeline can lean more toward 529s with less risk. Starting from $85,000 in the late 30s leaves less room for delay.
Aid expectations and school choice: if you expect merit aid, in-state tuition, grandparents' help, or a lower-cost college path, you may not need the most aggressive 529 push.
Career and cost volatility: job interruptions, healthcare creep, and Chicago housing costs can hit harder than a smooth spreadsheet. The more the plan depends on a later catch-up, the less margin there is if income stalls in the 40s or early 50s.
Open the preset closest to your situation and make targeted changes:
Update the Social Security anchor ($4,200/month is a planning placeholder; use your own estimate from ssa.gov).
Re-test retirement spending against your likely Chicago post-kids budget. If housing is partly stabilized, many households may need something more like $6,500-$8,500/month before adding heavier later-life care costs.
Increase or decrease the 529 expense amounts to match your actual contribution target.
Replace the one-off shocks with your own likely costs — a kitchen renovation, a third car, or private school tuition.
529 plans are not shown as a separate investment balance here. The page treats those contributions as money moved out of the family's retirement assets into a separate education bucket. If you want to estimate how that college bucket itself could grow, model it separately.
401(k) and IRA limits matter. $2,400/month is $28,800/year across both partners' accounts — above the 2026 IRA limit ($7,500 per person) but below two full 401(k) limits ($24,500 per person in 2026). Treat the monthly amount as total retirement saving across accounts, not a single-account contribution cap.
Illinois 529 deduction: married joint filers can subtract up to $20,000/year of contributions made during the tax year to Bright Start, Bright Directions, or College Illinois. That makes modest in-state 529 funding more attractive once the retirement baseline is already on track.
Employer match is not broken out separately in this preset. Treat the retirement-saving amounts as the total monthly dollars you want flowing into retirement accounts, then map that across your own payroll deferrals and any employer match.
Social Security is earnings-history dependent. The $4,200/month couple planning anchor is illustrative. Replace it with your own estimates from ssa.gov once you have them.
This scenario is an educational model, not personal financial advice. It simplifies taxes, account limits, benefits, and investment implementation so you can compare ranges and tradeoffs.