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Mortgage Affordability Calculator | Global, SEO-Optimized Tool

Mortgage Affordability Calculator

Global calculator with simple inputs. No sliders. Get an affordability estimate and see a 3D doughnut breakdown of your monthly housing costs.

Tip: leave as Auto or type a valid 3-letter code for better formatting.

Enter your yearly income before tax.

Loans, credit cards, student loans, etc.

Nominal annual rate for your mortgage.

Common terms: 10–30 years.

Cash you can put down upfront.

Optional. Leave blank if unknown.

Optional. Estimate if unsure.

Optional monthly association/maintenance.

Guidelines vary by market; choose what fits your risk comfort.

Understanding mortgage affordability

Mortgage affordability is the amount of home you can realistically purchase without straining your finances. It depends on income, existing debts, interest rate, loan term, and down payment. Your personal comfort with risk, emergency savings, and long-term goals also matter.

Many buyers use a housing-to-income guideline (for example, 25–33% of gross monthly income). Another check is the total debt-to-income approach, which limits all monthly debts—including housing—to a fixed share of income. While these are common rules of thumb, local lending standards can vary across countries and lenders.

Key factors that shape affordability

  • Income stability: Consistent earnings make payments predictable.
  • Existing debt: Higher obligations reduce room for housing costs.
  • Interest rate: Even small rate changes can meaningfully affect payments.
  • Loan term: Longer terms lower monthly payments but increase total interest.
  • Down payment: A larger down payment reduces the loan size and interest costs.
  • Taxes and insurance: Plan for property taxes, insurance, and maintenance.
Tip: Stress-test your budget. Add 1–2% to your interest rate or include unexpected expenses to see if payments still fit.

For students and early-career professionals

If your income is growing, consider a conservative cap so you can keep saving for emergencies and goals. Build a buffer for relocation, education, or career changes, and avoid over-committing to long terms without room for flexibility.

For mid-career professionals

Balance acceleration (shorter terms) with liquidity. Optimizing your down payment and interest rate can improve affordability without pushing your monthly budget to the limit.

Frequently asked questions

HOW TO calculate mortgage affordability?
Estimate the maximum monthly housing payment based on your income and debts, then reverse the mortgage formula using interest rate, term, and your down payment to get an affordable home price.
HOW TO choose the right loan term?
Shorter terms mean higher monthly payments but lower total interest. Longer terms lower payments but increase total costs. Choose a term that fits your cash flow and risk tolerance.
HOW TO lower my mortgage payments?
Increase your down payment, seek lower interest rates, extend the term, or reduce other debts to improve your debt-to-income ratio.
HOW TO account for taxes and insurance globally?
Add local property tax estimates (as % of price) and insurance (annual amount). Divide by 12 to include them in your monthly housing cost.
HOW TO use this calculator without sliders?
Enter your values in the fields, press Calculate, and review the results and chart. Use Reset to clear all fields.

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