How Much House Can I Afford on $100k Salary?

The math

$100K salary = $8,333/month gross. Using the 28% rule, max housing is $2,333/month. After ~$500 for taxes and insurance, ~$1,833 covers principal and interest.

At 6.5% over 30 years, $1,833/month supports a loan of about $290,000. With $40,000 down, you can afford a home around $330,000 comfortably.

Down payment scenarios

• $15K down (5%): home up to ~$305K.
• $30K down (10%): home up to ~$330K.
• $60K down (20%): home up to ~$400K (no PMI).
• $100K down (25%): home up to ~$450K.

PMI on a 5% down loan typically costs $150–$220/month on a $300K home and disappears automatically once you reach 22% equity (or sooner if you request removal at 20%). For most $100K-income buyers, putting 10% down and investing the rest tends to beat stretching to 20% — especially in early career years.

Why most planners suggest $300K–$350K, not max

Bank max approval may push past $450K on $100K income — but that leaves little room for retirement, kids, repairs, or a job loss. Buying 10–20% below your max approval is the most common comfort range.

If you're saving 15% for retirement and 5% for other goals, your post-savings monthly income is closer to $6,500. A $2,800 mortgage payment is 43% of that — comfortable but not generous.

Three real $100K buyer profiles

Single buyer, no kids, $25K saved

Maxes 401(k) match (4%), no student loans. Comfortable target: $310,000–$340,000 with 8% down. Monthly PITI lands around $2,250 — leaving room for travel, a Roth IRA, and a healthy emergency fund. Stretching to $400K usually means cutting retirement savings or moving back to a roommate model for a year.

Dual-income couple, combined $100K, one car loan

$400/month car payment, $10K student loans being chipped at $200/month. Comfortable target: $285,000–$315,000. The car payment alone shaves about $60K off buying power. Paying off the car before closing is often the single highest-impact pre-purchase move.

Mid-30s professional, $100K, planning a child within 2 years

Daycare in most metros costs $1,200–$2,200/month — effectively a second mortgage. Smart target: $260,000–$300,000 so total housing + future childcare stays under 45% of take-home. Buyers who plan for childcare cost up front avoid the classic 'house-poor in year 3' trap.

$100K in different US metros

What $300K–$400K buys is wildly different by city. These are ballpark medians, not endorsements:

• Indianapolis, Kansas City, Pittsburgh: $325K easily buys a 3-bed single-family home with garage.
• Charlotte, Nashville, Tampa: $375K is typical for a 3-bed in a desirable suburb — competition can be tight.
• Denver, Austin, Raleigh: $400K usually means a townhome or starter single-family farther from the core.
• Seattle, San Diego, Boston suburbs: $400K is often a 1–2 bedroom condo; single-family typically requires $600K+.
• San Francisco, Manhattan, coastal LA: $100K income alone rarely supports a purchase — most buyers wait, partner up, or buy further out.

If you're in a high-cost metro on $100K, the practical levers are: extend timeline, buy a condo or townhome, look 30–45 minutes out, or wait for a second income/raise.

Balancing the mortgage with retirement and college savings

$100K is the income bracket where retirement math gets serious. Skipping a 15% retirement contribution to qualify for a bigger house typically costs $400,000–$700,000 in lifetime portfolio value. Most planners suggest sizing the house so that retirement contributions never need to be paused.

A simple ordering of priorities most $100K buyers should run before stretching the home budget: 401(k) employer match → high-interest debt payoff → 3-month emergency fund → Roth IRA or HSA → 20% house down payment if location-stable, otherwise 10% and keep cash.

Strategies on $100K income

• Aim for 20% down to skip PMI and start with strong equity.
• Keep total debt (housing + cars + loans) under 36% of gross.
• In high-cost areas, consider a 7/1 ARM if you'll move within 7 years.
• Maintain at least 3 months of payments in cash reserves after closing.
• Build the daycare line item into your affordability math now if kids are on the horizon.
• Shop at least 3 lenders — on $100K income a 0.25% better rate is worth ~$15K over the loan.

Common mistakes on $100K income

• Assuming the bank's max approval is a 'safe' number — lenders ignore retirement, childcare, and lifestyle.
• Forgetting closing costs (2–5% of price) and the moving + setup budget ($3K–$10K).
• Skipping the home inspection contingency in a competitive market to win the offer.
• Buying at the top of the range right before a planned career break or pregnancy.
• Underestimating maintenance — budget ~1% of home value per year ($3K–$4K).

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