How Much House Can I Afford on a $100,000 Salary?
On a $100,000 salary, most lenders will approve a home in the range of $320,000 to $400,000, assuming a 20% down payment, a 6.5% interest rate, and no other significant debt.
The spread is wide because two things move it a lot: your other debt payments, and how much property tax your area charges.
Where the number comes from
$100,000 a year is $8,333 gross per month. Lenders apply two rules:
| Rule | Limit | On $100,000/year |
|---|---|---|
| Housing payment (28% rule) | 28% of gross | $2,333/month |
| All debt payments (36% rule) | 36% of gross | $3,000/month |
Working backwards from $2,333, roughly $400 goes to tax and $150 to insurance, leaving about $1,780 for principal and interest. At 6.5% over 30 years, that supports a loan of about $282,000. Add a 20% down payment and you land near a $352,000 home.
Run your own numbers in the home loan calculator.
What other debt does to the figure
| Your existing debt | Home you can afford | Lost buying power |
|---|---|---|
| None | ~$352,000 | — |
| $400 car payment | ~$290,000 | $62,000 |
| $400 car + $300 student loan | ~$245,000 | $107,000 |
A $700 monthly obligation costs you more than $100,000 of buying power. If you are close to a purchase and carrying a car loan you could clear, paying it off may buy you far more house than saving the same amount toward a down payment would.
The down payment changes things too
| Down payment | Home you can afford | Why |
|---|---|---|
| 20% | ~$352,000 | No PMI |
| 10% | ~$305,000 | PMI eats into the monthly budget |
| 5% | ~$280,000 | Higher PMI |
A smaller down payment lets you buy sooner but reduces what you can afford, because PMI takes a bite out of the same monthly ceiling.
Approved is not the same as affordable
The 28% rule is a lending threshold, not a comfort threshold. It says nothing about your childcare costs, your medical expenses, whether your income is stable, or how much you want to save.
Many financial planners suggest keeping housing nearer 25% of gross income, which on $100,000 means about $2,080 a month and a home closer to $310,000. Buying at the bottom of your approval range instead of the top is one of the few decisions here you are unlikely to regret.
Also budget for what the mortgage does not cover: maintenance at roughly 1% of home value per year (about $290 a month on a $350,000 house), plus utilities that are usually higher than in a rental.
What you need saved
| Item | Amount on a $350,000 home |
|---|---|
| Down payment (20%) | $70,000 |
| Closing costs (2–5%) | $7,000–$17,500 |
| Emergency fund | 3–6 months of expenses, kept separate |
Emptying your savings to reach 20% is usually a worse position than putting 10% down and keeping a cushion. A house with no emergency fund behind it is fragile.
Frequently asked questions
How much house can I afford on $100,000? Roughly $320,000 to $400,000 with no other debt, less if you carry car or student loan payments.
What mortgage payment can I afford on $100,000? About $2,333 a month total using the 28% rule, or around $2,080 using a more conservative 25%.
Does a higher credit score help? Yes, meaningfully. A better rate lowers the payment, which raises what you can borrow within the same ceiling.
Can I get approved for more than this? Often, yes — some programs allow higher ratios. Being able to borrow more does not mean it is wise to.
These figures are estimates for planning purposes. Your actual borrowing capacity depends on your credit, location, lender, and loan program — speak to a mortgage broker or lender for numbers specific to your situation.