House Affordability Calculator

Use this free house affordability calculator to test a home price from income, monthly debts, down payment, mortgage rate, debt-to-income target, tax, insurance, and HOA.

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House Affordability Calculator artwork shows income, monthly debts, down payment, mortgage rate, housing budget, and estimated home price. View in the smoke-kawaii gallery
Estimate, not advice Payment or total shown Example inputs Tab-only history
Estimated affordable home price$421,988.22

$110,000 income at 36% DTI target

Estimated loan amount
$361,988.22
Monthly housing budget
$2,850.00
Principal and interest
$2,288.01
Estimated tax/insurance/HOA
$561.99

This is not mortgage approval and does not include credit review, cash reserves, closing costs, exact property tax, exact insurance, repairs, utilities, lender underwriting, or a written Loan Estimate.

Formula steps

  1. Convert annual income to monthly income.
  2. Apply the debt-to-income target, then subtract monthly debts.
  3. Estimate principal, interest, property tax, insurance, and HOA for candidate home prices.
  4. Search for the highest home price that fits the monthly housing budget.

How to use the House Affordability Calculator

  1. Enter annual gross income, monthly debt payments, and down payment.
  2. Add mortgage rate, loan term, debt-to-income target, property tax, monthly insurance, and HOA.
  3. Calculate, then compare affordable home price, loan amount, monthly housing budget, principal and interest, and tax/insurance/HOA.
  4. Check closing costs, repairs, emergency savings, utilities, credit review, and a lender Loan Estimate before treating the price as affordable.

What people use it for

Estimate a home-buying budget before touring houses.

See how debts, down payment, mortgage rate, tax, insurance, and HOA affect affordability.

Compare debt-to-income targets in a transparent way.

Separate principal and interest from tax, insurance, and HOA costs.

Quick examples

Income-based budget

$110,000 income, $450 debts, $60,000 down, 6.5%, 36% DTI

About $421,988.22 home price and $2,850 housing budget

Lower debt case

$90,000 income, $150 debts, $45,000 down, 33% DTI

About $340,278.15 home price and $2,325 housing budget

Higher down payment

$140,000 income, $700 debts, $120,000 down, 36% DTI

About $540,909.46 home price and $3,500 housing budget

Need the guide or a nearby tool?

Need a slower walkthrough, a related calculator, or the full library? These links keep you close to the task you started.

Frequently asked questions

Plain-language answers about when to use the estimate, what your numbers mean, what is left out, and how privacy works.

When should I use the House Affordability Calculator?

Use it when you want to test the exact inputs on this page: Estimate a home-buying budget before touring houses. See how debts, down payment, mortgage rate, tax, insurance, and HOA affect affordability. The result is a check against your assumptions, not proof that a lender, tax app, broker, platform, or provider will use the same number.

What do the main House Affordability Calculator inputs mean?

Annual gross income means your yearly income before tax and payroll deductions. Monthly debt payments means recurring debt payments such as car loans, student loans, credit cards, or other debts that compete with the mortgage payment. Down payment means cash applied to the home price before the mortgage loan amount is calculated. Debt-to-income target means the share of gross monthly income you want to allow for housing plus debts in this estimate. Property tax, insurance, and HOA means housing costs that reduce the room left for principal and interest.

Is this the same as mortgage preapproval?

No. CFPB warns that how much you qualify to borrow can be different from what you can comfortably repay. This calculator is a planning screen. A lender still checks credit, income, debts, assets, property details, and underwriting rules.

Why does the calculator include tax, insurance, and HOA?

Because the monthly home budget is not only principal and interest. CFPB says property taxes, homeowners insurance, PMI, and HOA fees can be part of the monthly mortgage cost, and Fannie Mae tells buyers to budget for more than the loan payment.

What debt-to-income target should I use?

Use the target as a what-if, not a rule. Fannie Mae says housing cost is often discussed around 25% to 30% of gross income, while lenders may review broader debt-to-income rules. Try a lower target if the result crowds out savings, repairs, utilities, or other bills.

What is the House Affordability Calculator doing with my numbers?

In plain language: The calculator applies a debt-to-income target to monthly income, subtracts monthly debts, then searches for the highest home price whose estimated housing payment fits. The search is monthly and estimate-based: it tests candidate home prices until principal and interest plus property tax, insurance, and HOA fit inside the housing budget.

How should I read the House Affordability Calculator answer?

Affordable home price is the highest price that fits your chosen target. Loan amount is home price minus down payment. Monthly housing budget shows the cap after existing debts. Principal and interest plus tax, insurance, and HOA show what fills that cap.

What does this estimate leave out?

This is not mortgage approval. Credit score, lender underwriting, cash reserves, closing costs, exact property tax, insurance, HOA, repairs, utilities, local prices, and the written Loan Estimate can change affordability. Use a lender Loan Estimate, local tax/insurance quotes, and your own budget before treating a home price as affordable.

What should I double-check before copying the result?

Check gross income, monthly debts, down payment, rate, loan term, DTI target, property tax, insurance, and HOA. Then check whether the answer leaves room for closing costs, repairs, emergency savings, utilities, and moving costs.

Does the site save my finance inputs?

No. The calculator runs in your browser tab. Recent answers stay only on the page while you use it, and they are not sent to a server.

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