If you earn $100,000 a year and want to know how much house you can afford in 2026, the short answer is: roughly $315,000 to $380,000, depending on your down payment and existing debt. That range comes from the 28/36 rule applied at current 30-year mortgage rates (6.51% per Freddie Mac PMMS, May 21, 2026). Lenders may approve you for $450,000 or more by stretching to a 43–50% debt-to-income ratio, but "approved" is not the same as "affordable." This guide walks through both numbers so you can see the gap.
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The Home Affordability Calculator factors in your income, debts, down payment, and local property tax rate.
Open Home Affordability Calculator →Step 1: Translate $100k Salary Into Monthly Numbers
A $100,000 gross annual salary works out to $8,333 per month before taxes. The 28/36 rule applies to gross income, not take-home pay.
- 28% housing cap: $2,333/month maximum for principal, interest, taxes, insurance, HOA, and PMI combined.
- 36% total debt cap: $3,000/month maximum for housing plus all other debt payments (auto loans, student loans, credit card minimums).
- If you have $0 in other monthly debt, the housing cap is the binding constraint.
- If you have $500/month in other debt, your housing cap drops to $2,500 (the lower of $2,333 and $3,000 − $500).
Step 2: How Much Home Price That Buys at 2026 Rates
The full PITI (principal, interest, taxes, insurance) for a $2,333/month payment at a 6.51% 30-year rate, assuming average US property tax of 1.0% and homeowner's insurance of about $150/month, breaks down by down payment size below. PMI is added at 0.5% annually when down payment is under 20%.
| Down Payment | Max Home Price | Loan Amount | Monthly PITI |
|---|---|---|---|
| 3.5% (FHA minimum) | ~$295,000 | $284,675 | $2,330 |
| 5% | ~$310,000 | $294,500 | $2,329 |
| 10% | ~$330,000 | $297,000 | $2,331 |
| 20% (no PMI) | ~$375,000 | $300,000 | $2,332 |
Assumes 6.51% 30-year fixed rate (Freddie Mac PMMS, May 21, 2026), 1% property tax, $150/month insurance, 0.5% PMI when applicable. Property taxes vary widely by state — Texas and New Jersey run higher, Hawaii and Alabama lower.
How Existing Debt Changes the Picture
The 36% total-debt cap is often the binding constraint, not the 28% housing cap. Here is how monthly debt obligations reduce the home you can afford on a $100k income with 10% down at 6.51%:
| Existing Monthly Debt | Housing Budget | Max Home Price |
|---|---|---|
| $0 | $2,333 | ~$330,000 |
| $300 (student loan) | $2,333 | ~$330,000 |
| $500 (car payment) | $2,333 | ~$330,000 |
| $700 (car + student loan) | $2,300 | ~$325,000 |
| $1,000 (multiple debts) | $2,000 | ~$280,000 |
| $1,500 | $1,500 | ~$205,000 |
Housing budget is the lower of (28% × gross income) and (36% × gross income − existing debt).
Paying off a $400/month car loan before buying can functionally add $50,000+ to the home price you qualify for. This is often the single highest-leverage move a buyer can make in the 6–12 months before applying for a mortgage.
"Lender Maximum" vs. "Comfortably Affordable" — The Gap
Lenders qualify you to the maximum allowed debt-to-income ratio, not the 28/36 rule. On a $100k income with no other debt, that gap looks like this:
| Standard | DTI | Max Housing | Max Home (10% down) |
|---|---|---|---|
| 28/36 rule | 28% | $2,333 | ~$330,000 |
| Conventional standard | 36% | $3,000 | ~$425,000 |
| FHA back-end max | 43% | $3,583 | ~$510,000 |
| Fannie Mae DU stretch | 50% | $4,167 | ~$595,000 |
DTI categories per CFPB guidance and Fannie Mae underwriting guidelines.
The $595k lender approval looks impressive until you live it. A $4,167/month housing payment on a $100k salary leaves about $1,700/month of after-tax income for everything else — food, transportation, healthcare, retirement, child care. Most personal finance research finds borrowers who buy near the lender maximum are significantly more likely to fall behind on payments within 3 years.
A Realistic $100k Buyer Scenario
Sarah earns $100,000 as a software project manager. She has $310/month in student loans and a $0 car payment. She has saved $35,000 for down payment plus closing costs.
- Gross monthly income: $8,333
- 28% housing cap: $2,333
- 36% total-debt cap minus $310 student loan: $2,690 — housing cap is the binding constraint
- Available for down payment + closing: $35,000 (3% closing costs on $300k = $9,000, leaving $26,000 for down → ~8.5%)
- Comfortable target home price: $300,000–$320,000
- Estimated monthly PITI at $310k purchase, 8.5% down, 6.51% rate, 1% property tax: ~$2,290
Sarah's lender might pre-approve her for $450k. She is wiser to shop at $320k and below — that way the move-in costs, furniture, an unexpected appliance repair, and her retirement contribution all still fit her real life.
Get your exact affordability range:
Open Affordability Calculator →Frequently Asked Questions
How much house can I afford on a $100k salary in 2026?
At a $100,000 gross annual salary with no other debt, a 10% down payment, and a 6.5% 30-year mortgage rate, you can comfortably afford a home in the $315,000–$345,000 range using the 28/36 rule. With a 20% down payment and no PMI you can stretch to roughly $360,000–$380,000. Lenders may approve you for more — up to a 43% or even 50% DTI — but staying near 28% housing costs is the safer rule.
What is the 28/36 rule?
The 28/36 rule says housing costs (principal, interest, taxes, and insurance, plus HOA and PMI if any) should not exceed 28% of gross monthly income, and total debt payments — housing plus car loans, student loans, credit card minimums — should not exceed 36%. It is a guideline, not a law, but most personal-finance and lending sources use it as the conservative baseline.
What is the maximum DTI lenders will approve in 2026?
For manually underwritten conventional loans, the maximum total DTI is typically 36% — extendable to 45% with strong compensating factors. Loans run through Fannie Mae's Desktop Underwriter can reach 50% DTI in some cases. FHA loans generally cap front-end DTI at 31% and back-end DTI at 43%, though approvals up to 50% occur with automated underwriting and strong credit.
Does a higher down payment let me afford more house?
Yes, in three ways. (1) You borrow less for the same purchase price, lowering monthly principal and interest. (2) At 20% down you eliminate private mortgage insurance, freeing up 0.3–1.5% of the loan amount per year. (3) A larger down payment can qualify you for a slightly lower interest rate. On a $100k income, going from 10% to 20% down can raise the affordable price by roughly 8–12%.
What other costs should I budget for beyond the mortgage payment?
Property taxes (0.3%–2.5% of home value annually depending on state), homeowners insurance ($1,200–$3,000/year typically), HOA fees if applicable ($200–$700/month for condos and many planned communities), maintenance (a common rule of thumb: 1% of home value per year), and closing costs at purchase (2%–5% of the loan amount).
Sources & Further Reading
- CFPB — Buying a Home — official consumer guide to mortgage qualification.
- CFPB — Qualified Mortgage Definition (Reg Z).
- Freddie Mac PMMS — current 30-year mortgage rates.
- Fannie Mae — Mortgage Products & Underwriting.
- HUD — FHA Loan FAQ.
For informational purposes only. Not financial advice. Affordability examples are estimates. Property tax rates, insurance costs, and lender criteria vary by location and borrower profile.