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Affordability Calculator

Know your budget before you start house-hunting. Based on income, expenses, and down payment, calculate your maximum loan and affordable home price.

🏠 Affordability Calculator

Based on income and expenses, calculate your maximum loan and home purchase budget

NT$
NT$ 20,000NT$ 100,000NT$ 500,000
NT$
0NT$ 30,000NT$ 100,000
x NT$10K
0NT$ 3,000,000NT$ 3.0B
%
0.5%2.10%6%
%
10%33%60%
Max Affordable Price
NT$ 9,165,916
 
🟢
Safe
Debt ratio is healthy; financially manageable
Maximum LoanNT$ 6,165,916
Available Monthly PaymentNT$ 23,100
Payment-to-Income Ratio23.1%
LTV67.3%
Estimated Total InterestNT$ 2,150,084
Monthly income allocation
■ Expenses 30%■ Mortgage 23%■ Remaining 47%

📌 Payment-to-Income Safety Guide

🟢
< 30% — Safe
Debt ratio is healthy; financially manageable
🟡
30–40% — Caution
Debt ratio is elevated; watch other expenses carefully
🔴
> 40% — High Risk
Debt ratio is too high; consider a lower price or larger down payment

* Ratio = monthly mortgage payment ÷ household income. Banks typically cap at 40%. A 30–33% target is more conservative.

How Is Affordability Calculated?

  1. Available Monthly Payment = (Income − Expenses) × Payment-to-Income Limit
  2. Maximum Loan: back-calculated from available payment using equal payment formula
  3. Affordable Price = Maximum Loan + Down Payment

Banks typically cap at monthly payment ÷ income ≤ 40%. Financial advisors recommend 30–33% as a healthy target.

💡 Note: Actual bank loan approval also depends on credit score, employment stability, other debts, and property valuation. This calculator shows a theoretical maximum.

⚠️ Disclaimer: Uses equal payment method. For educational purposes only. Actual loan amounts depend on bank policy and individual credit. Not financial advice. Consult a loan specialist before purchasing.