House Affordability Calculator (income-based)
Estimate an income-based maximum home price using income, debts, rate, term, down payment, and housing ratio.
- Last reviewed
- July 8, 2026
- Cost
- Free to use
- Data
- Runs in your browser
Max Monthly Payment
Enter valid inputs
Max Loan Amount
Enter valid inputs
Max Home Price
Enter valid inputs
Estimated Down Payment
Enter valid inputs
Methodology
How this calculator handles inputs
This calculator uses the values you enter above and applies the formula explained in the guide below. Results update in the browser and are intended for quick planning, comparison, and sanity-checking.
- Use consistent periods, currencies, and units across inputs.
- Review any assumptions before using the result in a decision.
- Recalculate when rates, prices, tax rules, or business terms change.
Important note
This tool provides general planning information only. It is not tax, legal, financial, accounting, or investment advice. Check the current rules for your location and speak with a qualified professional before making a high-stakes decision.
Guide
How it works
Use this calculator to estimate income-based house affordability.
What this calculator does
The house affordability calculator estimates maximum monthly payment, maximum loan amount, maximum home price, and estimated down payment.
House Affordability Formula
Max Payment = Gross Monthly Income x Housing Ratio - Monthly Debts
Example calculation
If monthly income is 8,000, debts are 500, and housing ratio is 28%, the calculator estimates the mortgage payment and home price that may fit.
When to use this calculator
- estimating buying power
- planning a home search budget
- checking debt impact
- comparing down payment assumptions
FAQs
Is this lender approval?
No. It is a planning estimate based on simple ratios.
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