$100,000 — the classic six-figure milestone — is about 25% above the US median household income, and it buys comfortably in most US markets. Using the lending industry's standard 28/36 rule, the answer lands around $345k–$385k depending on your debts, down payment and rate. Here is the exact math.

The 28/36 rule, step by step

Lenders use two ratios:

  • Front-end (28%): Housing costs ≤ 28% of gross monthly income
  • Back-end (36%): All monthly debts ≤ 36% of gross monthly income

On $100,000/year ($8,333/month):

  • Front-end limit: $8,333 × 0.28 = $2,333/month for housing
  • Back-end limit: $8,333 × 0.36 = $3,000/month for everything

If you have $600/month in car and student loan payments, the back-end rule allows $3,000 − $600 = $2,400 for housing, so the front-end $2,333 is the binding limit.

Converting the payment to a price

At 6.5% on a 30-year loan, $2,333/month in principal and interest supports a loan of about $369,000. With 20% down, that means a home price of roughly $461,000, but wait. That $2,333 must also cover property taxes and insurance (PITI), which lenders include in "housing." After ~$400/month for taxes and insurance, the P&I budget is closer to $1,935, supporting a loan of ~$306,000 and a price of ~$385,000 with 20% down.

Realistic ranges on $100K salary:

| Down payment | Approx. max home price (6.5%, 30-yr) | |---|---| | 10% down | ~$345,000 | | 20% down | ~$385,000 | | Debts over $1,000/mo | subtract ~$55,000 |

Five things that move the number

  1. Interest rate. At 5.5% instead of 6.5%, the same payment buys ~12% more house. Rate matters more than most buyers think.
  2. Existing debts. Every $200/month in debt payments cuts roughly $30,000 off your max price. Killing a car payment before buying is powerful.
  3. Down payment. On $100K, saving 20% is realistic with disciplined budgeting, and it avoids PMI (about 0.5–1% of the loan per year) while giving you instant equity cushion.
  4. Property taxes. In New Jersey or Illinois, taxes can add $800+/month on homes in this range; in Florida or Texas, ~$600; in Colorado, under $250. Location changes affordability enormously.
  5. HOA dues. A $300/month HOA fee counts against your ratios exactly like a higher mortgage payment.

The costs buyers forget

The mortgage is only the headline. Budget ~1% of the home's value per year for maintenance ($3,900/year on a $385,000 home), plus utilities, and an emergency fund that covers 3–6 months of the new higher housing cost, not your old rent. At this price point, don't skip the home inspection to save $500 — it's the cheapest insurance you'll ever buy.

Should you max it out?

The 28/36 rule is a ceiling, not a target. Buying 10–20% below your max leaves room for savings, investing and life. Being "house poor", technically approved but with zero margin, is how a six-figure salary turns into chronic financial stress.

Run your own numbers with our home affordability calculator: enter your income, debts, rate and down payment for a personalized max price.

More in this series: $50K · $60K · $70K · $80K · $90K · $120K · $150K · $200K

Estimates for planning only, not financial advice. Actual approval depends on your lender.