Buying a home is the biggest purchase most people ever make, so “how much house can I afford on my salary?” is one of the most important money questions you can ask. On a $100,000 salary the answer usually lands somewhere around $300,000 to $400,000 — but that range shifts with your down payment, your other debts, the interest rate, and local taxes. This guide shows you exactly how to calculate affordability using the 28/36 rule lenders rely on, walks through the numbers for 60k, 80k, 100k, 150k, and 200k salaries, and explains the factors that move your budget.
There is no single answer to how much house a salary can buy, because affordability is a formula, not a fixed number. Lenders decide it using ratios that compare your income to your housing and total debt payments, and the biggest lever after income is your down payment. The most widely used framework is the 28/36 rule: keep your monthly housing cost under 28% of gross monthly income and your total debt payments under 36%.
Layered on top of that is a simpler shorthand — a home price of roughly three to four times your annual salary — which gives you a fast estimate before you run the detailed math. Below, we combine both approaches, apply them across common salary levels, and show how down payment, interest rate, and property taxes reshape the result so you can find a realistic, comfortable number.
Affordability is built on gross monthly income and take-home pay. Use our Gross Monthly Income Calculator and Take-Home Pay Calculator to get both figures before you run the ratios.
What this guide covers
The 28/36 rule
The 28/36 rule is the backbone of mortgage affordability. It sets two ceilings based on your gross monthly income — one for housing alone, one for all your debt.
Housing payment ≤ 28% of gross monthly income
Total debt payments ≤ 36% of gross monthly incomeOn a $100,000 salary, gross monthly income is about $8,333. So the 28% housing ceiling is roughly $2,333 a month, and the 36% total-debt ceiling is about $3,000. Your mortgage payment — including principal, interest, property taxes, and insurance (PITI) — should fit under the 28% figure, while that payment plus car loans, student loans, and credit-card minimums stays under 36%. These ratios use gross income, which is why our guide on gross monthly salary matters here.
The 3-4x salary shorthand
Before running full ratios, a quick sanity check is to multiply your salary by three or four. It is not precise, but it gets you in the right neighborhood fast.
Rough home budget = Annual salary × 3 to 4The multiple you land on within that range depends on your down payment, debts, and rates. With little debt, a solid down payment, and moderate rates, you lean toward 4x; with high debt or high rates, you lean toward 3x or below. On a $100,000 salary, that is a $300,000–$400,000 ballpark — which we refine with real ratios next.
How much house can I afford on $100,000?
Putting the pieces together for a $100,000 salary: gross monthly income is about $8,333, so your 28% housing budget is roughly $2,333 a month. With a moderate down payment and average interest rate, that monthly payment typically supports a home price in the $300,000 to $400,000 range.
| Assumption | Effect on the $100k budget |
|---|---|
| Low debt + 20% down | Toward the top — around $380,000–$400,000 |
| Average debt + 10% down | Middle — around $330,000–$360,000 |
| Higher debt or higher rate | Lower — around $280,000–$320,000 |
The exact figure hinges on the factors below, but $300,000–$400,000 is the honest working range for a $100,000 salary. Since a six-figure salary is a common home-buying income, our guide on what a six figure salary is puts that pay in context.
How much house by salary: 60k to 200k
Applying the same 3–4x framework across common salaries gives a quick reference table. Treat these as starting ranges to refine with your own down payment, debts, and rate.
| Salary | 28% monthly housing budget | Approx. home price range |
|---|---|---|
| $60,000 | ≈$1,400 | $180,000–$240,000 |
| $80,000 | ≈$1,867 | $240,000–$320,000 |
| $100,000 | ≈$2,333 | $300,000–$400,000 |
| $150,000 | ≈$3,500 | $450,000–$600,000 |
| $200,000 | ≈$4,667 | $600,000–$800,000 |
The pattern is linear: roughly three to four times salary. Where you land inside each range is set by the four factors covered next — down payment, interest rate, property taxes, and existing debt.
The down payment factor
Your down payment is the biggest lever you control. A larger down payment shrinks the loan, lowers the monthly payment, and lets the same salary buy a pricier home — and it can eliminate private mortgage insurance (PMI).
5% down
Lower upfront cost, but a bigger loan, higher payment, and usually PMI.
10–15% down
A middle path — smaller loan and payment, PMI often still applies.
20% down
Avoids PMI, lowest payment, and the most house for your income.
Trade-off: a bigger down payment buys more house per dollar of income but ties up cash. Keep an emergency fund intact — see how much of your salary to save.
Interest rate and property taxes
Two external factors quietly reshape affordability: the mortgage interest rate and local property taxes plus insurance. Both change your monthly payment without changing your salary.
Higher interest rates raise the monthly payment on the same loan, which lowers the home price your 28% budget supports — sometimes significantly. Property taxes and homeowners insurance vary widely by location and are part of the PITI payment the 28% rule measures, so a high-tax area effectively reduces how much house your salary buys. When you compare homes or areas, always price the full PITI payment, not just principal and interest. This is also why after-tax income matters — see how to estimate salary after taxes to pressure-test the payment against your real take-home.
Existing debts and your DTI
The second half of the 28/36 rule — the 36% total-debt ceiling — is where existing debts cut into your home budget. Every monthly obligation reduces the room left for a mortgage payment.
Debt-to-income (DTI) = Total monthly debt payments ÷ Gross monthly incomeOn a $100,000 salary with a 36% ceiling (~$3,000), a $500 car payment and $400 in student loans leave about $2,100 for housing — below the 28% figure, so debt becomes the binding limit. Paying down debts before buying directly raises how much house you can afford. Lenders lean heavily on DTI, which is why understanding gross monthly salary and your take-home is central to the whole calculation.
Calculate your own number
Put it all together with these steps to get a personalized, realistic budget.
Divide your salary by 12 — $100,000 becomes about $8,333.
Multiply by 0.28 for your max monthly PITI payment (~$2,333 on $100k).
Check the 36% ceiling minus your other debt payments; use the lower of the two limits.
Convert the affordable payment into a home price using your down payment and current interest rate.
Confirm the payment feels comfortable against your after-tax income, not just gross.
Mistakes to avoid
Budgeting on principal and interest only
Include taxes and insurance (PITI). They are part of the 28% rule.
Ignoring existing debt
The 36% ceiling can bind before the 28% one. Count all debts.
Maxing out the ratios
Just because you qualify does not mean it is comfortable. Leave a margin.
Forgetting the rate impact
Higher rates shrink your budget on the same income. Re-run the math.
Draining your savings
Keep an emergency fund after the down payment.
Using gross for your life budget
Sanity-check the payment against take-home pay.
Read how much of your salary should go to rent and how much to save; use the Take-Home Pay Calculator; see how to calculate take-home salary; browse the salary blog; explore all finance calculators; or visit the Waldev homepage.
Frequently asked questions
How much house can I afford on a 100k salary?
On a $100,000 salary, a common guideline is a home price of roughly $300,000 to $400,000, or about 3 to 4 times your salary, depending on your down payment, debts, interest rate, and property taxes. Using the 28% rule, your monthly housing payment should stay under about $2,333.
What is the 28/36 rule?
The 28/36 rule says your monthly housing costs should not exceed 28% of your gross monthly income, and your total monthly debt payments should not exceed 36%. Lenders use these ratios to judge how much mortgage you can afford.
How many times my salary can I borrow for a mortgage?
A common rule of thumb is that you can afford a home priced around 3 to 4 times your annual salary, though the exact figure depends on your down payment, other debts, interest rates, and local property taxes and insurance.
How much house can I afford on 60k or 80k?
On a $60,000 salary, you can typically afford a home around $180,000 to $240,000, and on $80,000, around $240,000 to $320,000, using the 3 to 4 times salary guideline. Your down payment, debts, and interest rate move these ranges.
Does my down payment affect how much house I can afford?
Yes. A larger down payment reduces the loan amount and monthly payment, letting you afford a higher-priced home for the same income. It can also help you avoid private mortgage insurance, further lowering your monthly cost.
Should I use gross or net income for affordability?
Lenders use gross monthly income for the 28/36 ratios, but you should sanity-check affordability against your take-home pay too, since your actual budget is based on after-tax income. A payment that fits the ratios can still feel tight on net pay.
The quick version
On a $100,000 salary you can generally afford a home around $300,000 to $400,000 — roughly three to four times your income. Lenders use the 28/36 rule: keep housing (PITI) under 28% of gross monthly income (about $2,333 on $100k) and total debts under 36%. Where you land in the range depends on your down payment (bigger is better and avoids PMI at 20%), the interest rate, local property taxes, and your existing debts. The same math scales linearly — roughly $180k–$240k on a $60k salary up to $600k–$800k on $200k — but always stress-test the payment against your take-home pay, not just gross.
Disclaimer: This article is for general educational purposes and is not financial or lending advice. Affordability depends on your full financial picture, current rates, and lender criteria. Get pre-approved and consult a mortgage professional before buying.
The Consumer Financial Protection Bureau explains debt-to-income ratios and how lenders assess mortgage affordability.
The 28/36 rule reflects common conventional-loan guidelines, though specific limits vary by loan type and lender.