Home Loan, Mortgage & Affordability Calculator
Compute complete monthly mortgage outlays (PITI), simulate extra prepayments to eliminate years of interest, and analyze income debt-to-income (DTI) affordability
Total property valuation
20.0% down payment
Per annum mortgage rate
Escrow, Taxes & Insurance (Monthly / Annual)
Total Monthly Mortgage Payment (PITI + HOA)
$2,942.34
Principal & Interest: $2,022.62 / mo
Loan Amount: $320,000.00 • Total Interest Cost: $408,143.20
Principal & Interest (P&I)
$2,022.62
Base monthly mortgage EMI
Property Tax Estimate
$400.00 / mo
1.2% of home price annually
Home Insurance & HOA
$250.00 / mo
$100/mo insurance + $150 HOA
Total Lifetime Interest
$408,143.20
Across full 30-year term
Accelerate Payoff with Extra Prepayments
Added directly to monthly principal
Paid once every 12 months
Accelerated Payoff Horizon & Interest Saved
24 Years, 2 Months (Saved 5 Yrs, 10 Mos)
Interest Saved: $94,821.50
New Payoff Date shortened from 30 Years down to 290 Months
New Accelerated Tenure
24.17 Years
290 total months to zero balance
Time Horizon Saved
5.83 Years
Months eliminated from schedule
Total Interest Saved
$94,821.50
Direct cash savings on interest
New Total Interest Cost
$313,321.70
Reduced lifetime borrowing cost
Debt-to-Income (DTI) Lender Qualification Rule
Total pre-tax monthly income
Car loans, student loans, credit cards
Standard lender max: 28%
Standard lender max: 36%
Maximum Allowable Monthly Housing Payment
$2,380.00
Qualified under 28/36 DTI Limits
Front-End Cap: $2,380.00 • Back-End Cap: $2,560.00 (Governing limit: $2,380.00)
Max Affordable Home Purchase Price
$323,710.20
Based on current interest rate & taxes
Front-End DTI Ratio
28.00%
Housing payment ÷ Gross income
Back-End DTI Ratio
33.88%
(Housing + Debts) ÷ Gross income
Remaining Monthly Buffer
$3,620.00
Income remaining after PITI & debts