The 30s financial reality
Median household income peaks in your late 30s and 40s, which means this is when the real decisions start to matter. A mortgage is probably the largest financial commitment you'll make. Kids cost more than most people plan for. And retirement — abstract at 22 — is now close enough to require real numbers.
The good news: you have time, you likely have more income than your 20s, and the habits from your 20s should be paying off. The challenge: not letting lifestyle inflation eat everything you've built.
Buying a home: what the bank doesn't tell you
The bank will qualify you for significantly more than consider borrow. Lenders typically approve up to 43% DTI (debt-to-income), but financial planners generally recommend keeping housing below 28% of gross income.
20% down is still the standard advice — not because you can't buy with less, but because 20% eliminates private mortgage insurance (PMI), which costs 0.5–1.5% of the loan annually. On a $400,000 mortgage, that's $2,000–$6,000 per year until you hit 20% equity.
Beyond the mortgage: property taxes, insurance, HOA, and maintenance (1–2% of home value annually) add 20–40% on top of principal and interest. Model the full cost before committing.
Life insurance: get it before you need it
If someone depends on your income — spouse, children, aging parents — you need life insurance. Rule of thumb: 10–12× your annual income in coverage. Earn $80,000? That's $800k–$960k in term life.
Term life is almost always the right choice in your 30s. A healthy 32-year-old can get a 20-year $1M term policy for $40–60/month. Whole life and universal life cost 5–15× more and rarely beat buying term and investing the difference.
Also get disability insurance. Your ability to earn is your most valuable asset in your 30s — far more than your house or retirement account. A 60%-coverage policy costs $100–250/month and protects against the most likely financial catastrophe you'll face.
Investing in your 30s: close the gap
If you're behind on retirement savings, your 30s are the time to close the gap. The 401(k) contribution limit is $23,500. If you can't max it, capture the full employer match and contribute as much as your budget allows.
Allocation in your 30s: with 30+ years to retirement, you can afford to be aggressive. 90/10 or 80/20 stock/bond is reasonable. Index funds (total market, S&P 500) beat most actively managed funds over long horizons at a fraction of the fees.
A useful benchmark: by 30, aim for 1× your salary saved. By 35, aim for 2×. Targets, not mandates — but they give you something to measure against.
The real cost of children
The USDA estimates raising a child to 18 costs about $310,000 in today's dollars — not counting college. First-year expenses (hospital, gear, childcare) often run $15k–30k and blindside new parents who didn't budget for them.
Childcare is the biggest wildcard: $15k–$35k per year in many metros for full-time infant care. Model this before you get pregnant — it may shift your timeline significantly.
If college savings is a goal, open a 529 plan early. Even $100–200/month from birth can cover a significant portion of in-state tuition 18 years later.
Career & income growth
Your 30s are prime time for salary negotiation. Switching jobs strategically can increase income 15–30% faster than staying put. Every raise compounds into savings rate, retirement contributions, and Social Security at retirement.
Side income in your 30s also carries outsized impact — each additional $500/month invested starting at 33 becomes roughly $200,000 by 65 at 8% returns. High-income side projects are worth pursuing aggressively while you have the energy.