How Much House Can I Afford Calculator (2026)

✓ Audited for 2026 US Rates ✓ Client-Side Privacy Updated: September 2026

Determining your true home purchasing power requires balancing gross household income against existing monthly debt obligations, available down payment capital, and lender debt-to-income (DTI) ceilings. Use this institutional calculator to discover your maximum supportable purchase price across Conservative (28/36 rule), Conventional (36/43%), and Aggressive (FHA 50%) underwriting standards.

Income, Debts & Financing
$9,583 / month
Car loans, student loans, credit cards
Available cash for down payment
⚙ Adjust Taxes, Insurance & HOA Dues +
100% Client-Side Privacy: Your financial calculations run locally in your web browser. No income or debt data is stored.
Maximum Affordable Home Price
$465,000
With $50,000 down payment (10.8% equity)
Maximum Loan Amount
$415,000
30-Year Fixed at 6.75%
Total Monthly Housing (PITI)
$3,471
36.2% Front-End DTI
Estimated Monthly Payment Breakdown (PITI)
Principal & Interest (P&I) $2,692
Property Taxes (Escrow) $465
Homeowners Insurance $125
Private Mortgage Insurance (PMI) $189
Total Monthly Payment (PITI) $3,471
Front-End DTI (Housing Only) 36.2% / 36% Cap
Back-End DTI (Housing + Existing Debts) 43.0% / 43% Cap
Three Purchasing Scenarios:
CONSERVATIVE
$385,000
$2,683/mo
CONVENTIONAL
$465,000
$3,471/mo
AGGRESSIVE
$545,000
$4,142/mo

How Much House Can You Afford by Salary? (2026 Benchmarks)

The table below models typical home affordability across common household income brackets in the United States, assuming 10% down payment, a 6.75% 30-year fixed mortgage, and standard debt-to-income underwriting.

Annual Gross Salary Monthly Gross Income Conservative Price (28%) Conventional Price (43%) Estimated Monthly PITI
$60,000 / year $5,000 / mo $205,000 $245,000 $1,850 – $2,150
$80,000 / year $6,667 / mo $275,000 $335,000 $2,450 – $2,870
$100,000 / year $8,333 / mo $355,000 $425,000 $3,080 – $3,580
$125,000 / year $10,417 / mo $450,000 $540,000 $3,850 – $4,480
$150,000 / year $12,500 / mo $545,000 $655,000 $4,650 – $5,380
$200,000 / year $16,667 / mo $735,000 $880,000 $6,200 – $7,170

*Note: Exact borrowing power varies by credit score, down payment size, property tax millage rates, and monthly non-housing debt obligations.

Understanding Mortgage Underwriting: Front-End vs. Back-End DTI

Mortgage underwriters do not simply look at your salary; they analyze your financial picture through two interconnected ratios: the Front-End Debt-to-Income Ratio and the Back-End Debt-to-Income Ratio.

1. Front-End DTI (Housing Ratio)

The front-end ratio measures what percentage of your gross monthly income goes purely toward keeping a roof over your head. This includes:

  • Principal & Interest (P&I): The core monthly repayment to your mortgage lender.
  • Property Taxes: Monthly escrow for city, county, and school district taxes.
  • Homeowners Hazard Insurance: Monthly hazard and flood coverage escrow.
  • Private Mortgage Insurance (PMI): Required if your down payment is below 20%.
  • HOA or Condo Dues: Mandatory homeowner association fees.

Front-End DTI = (Total Monthly Housing Costs ÷ Gross Monthly Income) × 100

2. Back-End DTI (Total Debt Ratio)

The back-end ratio incorporates your total monthly financial commitments. Underwriters sum your proposed monthly housing payment with all minimum monthly recurring debt obligations:

  • Automobile loan or lease payments
  • Student loan monthly minimum installments
  • Credit card minimum monthly payments
  • Personal loans, child support, or court-ordered maintenance

Back-End DTI = [(Total Monthly Housing + Recurring Debts) ÷ Gross Monthly Income] × 100

Your maximum borrowing limit is determined by whichever ratio reaches its ceiling first. If you have significant student debt or automobile loans, your back-end DTI will cap your purchase price before your front-end limit is reached.

Frequently Asked Questions About Home Affordability

How much house can I afford on a $100,000 salary?
With a $100,000 annual income ($8,333/month), $500/month in non-housing debts, a 10% down payment, and a 6.75% interest rate, you can typically afford a home priced between $360,000 (conservative 28% front-end) and $435,000 (conventional 43% back-end). Total monthly payment would range between $2,330 and $3,080 including taxes and insurance.
What is the 28/36 rule in mortgage underwriting?
The 28/36 rule is the classic financial planning benchmark for housing affordability. It states that your housing expenses (mortgage principal, interest, taxes, insurance, and HOA dues) should not exceed 28% of your gross monthly income (front-end ratio), and total debt payments (housing plus auto loans, student loans, and credit cards) should not exceed 36% of gross income (back-end ratio).
How do existing monthly debts affect how much house I can afford?
Every dollar of recurring monthly debt directly reduces your available borrowing capacity. Because lenders cap your back-end DTI, every $100 in monthly car or student loan payments reduces your maximum supportable mortgage loan by approximately $14,000 to $16,000 at current 2026 interest rates.
How much does interest rate affect home affordability?
As a general rule, a 1.0% increase in mortgage interest rate reduces your home buying purchasing power by approximately 9% to 11%. On a $400,000 loan, an interest rate jump from 6.0% to 7.0% increases the monthly P&I payment by about $260/month, requiring an additional $9,000 in gross annual income to qualify for the same house.
What is Private Mortgage Insurance (PMI) and when is it required?
PMI is required on conventional loans when your down payment is less than 20% of the purchase price. PMI typically costs between 0.3% and 1.2% of the original loan balance annually ($75 to $250/month on a $300,000 loan) depending on credit score. Once your home equity reaches 20%, you can request PMI cancellation under the federal Homeowners Protection Act.
What is the difference between front-end and back-end DTI?
Front-end DTI (housing ratio) compares only your prospective monthly housing costs (PITIA) against gross monthly income. Back-end DTI (total debt ratio) includes housing costs PLUS all existing monthly credit obligations (car payments, student loans, credit card minimums, alimony). Lenders evaluate both, and your borrowing capacity is capped by whichever limit is reached first.
Can I buy a house with a DTI higher than 43%?
Yes. While 43% is the standard Qualified Mortgage (QM) benchmark for Fannie Mae and Freddie Mac, automated underwriting systems (Desktop Underwriter) allow conventional DTI ratios up to 45% or 50% with compensating factors (e.g., 740+ credit score, 6+ months cash reserves). FHA loans routinely allow back-end DTIs up to 46.9% to 50% with strong credit and cash assets.
How much cash should I keep after buying a home?
Financial advisors strongly recommend maintaining 3 to 6 months of living expenses (mortgage payment plus basic living costs) in an emergency fund after closing. Do not drain 100% of your savings for the down payment and closing costs, as unexpected home maintenance, moving expenses, and appliance replacements frequently occur during the first year of homeownership.

Related Real Estate & Mortgage Calculators

Analyze your complete homebuying process with our connected tools:

Mortgage PITI Calculator Down Payment Calculator Closing Cost Calculator DTI Calculator HOA Buying Power Impact Rent vs. Buy Calculator Property Tax by State Mortgage Payoff Calculator