What debt-to-income ratio should I use?

A commonly cited guideline is keeping housing costs at or below 28% of gross income, though your comfortable number may be lower or higher depending on your other expenses and financial goals.

Does this include property taxes and insurance?

This estimates based on the loan payment itself. Actual monthly housing costs also typically include property taxes, homeowners insurance, and possibly HOA fees, which would need to be added for a complete monthly cost picture.

How does a larger down payment affect affordability?

A larger down payment reduces how much you need to finance, which lowers your monthly payment and can increase the maximum home price you can afford within the same debt-to-income target.

Is this the same figure a lender will approve me for?

This is a planning estimate based on the inputs you provide. An actual lender's approval depends on your full financial profile, credit history, and their specific underwriting guidelines, which can differ from this simplified calculation.

Finance & Loans Cluster

Home Affordability Calculator

Calculate max home price from income and DTI ratio.

TL;DR: Home Affordability Calculator is a free, browser-based tool that lets you calculate max home price from income and DTI ratio.

Annual income

Max housing DTI %

Down payment

Interest rate %

Loan term (years)

About the Home Affordability Calculator

The Home Affordability Calculator provides financial scenario modeling and payment schedules, helping individuals and businesses project interest obligations, asset returns, and amortization timelines with mathematical precision.

How to Use the Home Affordability Calculator

Enter your primary financial balance or principal amount.
Configure annual percentage interest rates and repayment or compounding timelines.
Review the calculated financial summary, monthly cash flows, and schedule breakdown.
Test multiple interest and term scenarios to optimize your borrowing or investment strategy.

Mathematical Formula & Methodology

Here is the standard mathematical equation used to calculate this result accurately:

\text{Max Monthly Housing} = \text{Gross Monthly Income} \times 28\% \quad (\text{Front-End DTI})

Formula Variables Explained:
Determines affordable home purchase price based on gross household income, monthly debt obligations, down payment, and 28/36 debt-to-income (DTI) rules.

Step-by-Step Worked Example

A household earning $120,000/year ($10,000/month) with $600/month car payments can qualify for up to $2,800/month mortgage payment, affording a home valued up to ~$480,000 with 10% down.

Expert Tips for Home Affordability Calculator

Verify Compounding Frequencies: Confirm whether interest is compounded daily, monthly, or annually to match institutional lending contracts.
Assess Opportunity Cost: Compare fixed loan interest obligations against potential returns from diversified index funds.
Informational Disclaimer: Financial projections are calculated for informational planning and should be reviewed alongside certified financial advisors.

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100% Client-Side Privacy Guarantee

All processing runs locally inside your browser using JavaScript and HTML5 APIs. Your data, files, and inputs are never uploaded to any remote server. Complete privacy by design.

Frequently Asked Questions

: A commonly cited guideline is keeping housing costs at or below 28% of gross income, though your comfortable number may be lower or higher depending on your other expenses and financial goals.
: This estimates based on the loan payment itself. Actual monthly housing costs also typically include property taxes, homeowners insurance, and possibly HOA fees, which would need to be added for a complete monthly cost picture.
: A larger down payment reduces how much you need to finance, which lowers your monthly payment and can increase the maximum home price you can afford within the same debt-to-income target.
: This is a planning estimate based on the inputs you provide. An actual lender's approval depends on your full financial profile, credit history, and their specific underwriting guidelines, which can differ from this simplified calculation.

Cite This Tool

Referencing this tool in a paper, article, or bibliography? Copy a ready-made citation below.

NexLove.org. (2026). Home Affordability Calculator [Software]. https://nexlove.org/tools/home-affordability-calculator.html

“Home Affordability Calculator.” NexLove.org, 2026, nexlove.org/tools/home-affordability-calculator.html.

NexLove.org (2026) Home Affordability Calculator. Available at: https://nexlove.org/tools/home-affordability-calculator.html (Accessed: 2026).

@misc{nexlove_home_affordability_calculator,
  title = {Home Affordability Calculator},
  author = {{NexLove.org}},
  year = {2026},
  url = {https://nexlove.org/tools/home-affordability-calculator.html}
}

Embed This Tool

Add the live Home Affordability Calculator tool to your own website with this snippet — it loads the real, working tool in an iframe, not a static screenshot.

<iframe src="https://nexlove.org/embed/home-affordability-calculator.html" width="100%" height="600" style="border:1px solid #e2e8f0;border-radius:12px" title="Home Affordability Calculator — NexLove.org" loading="lazy"></iframe>

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