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Home Affordability Calculator

Finance & Investment

How much house you can afford from income and down payment

Quick Answer

Home Affordability Calculator: How much house you can afford from income and down payment. Affordable payment = monthly income × payment ratio (30–35% comfort, 50% bank cap).

Max affordable price

¥2.00M

Constrained by down payment

Max monthly pmt¥5,978
Max loan¥1.40M
By income¥2.24M
By down payment¥2.00M

Debt-to-income stress

Comfortable <30%
Stretched 30-50%
Risky >50%

Your DTI: 30% (banks usually cap at 50%)

Steps

  1. 1Payment capacity = 20000 × 35% = ¥7,000/mo
  2. 2Loan from payment (annuity inverse, 3.1% × 30yr) = 1639281万
  3. 3Price by income = loan + down = 224万; by down payment = 60 ÷ 30% = 200万
  4. 4Take the smaller: 200万

Rule-of-thumb ratios

DTIAssessment
≤ 30%Comfortable; room for savings & investing
30% – 40%Common; manageable with stable job
40% – 50%Stretched; bank approval upper bound
> 50%Rejected by most banks; high default risk

💡 Keep 6-12 months of payments as emergency reserve after the down payment — never drain savings to zero. Taxes, agency fees and renovation typically add 5-10% on top of the price.

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How to Use

  1. Enter amounts and terms: fill principal, rate and period in the Home Affordability Calculator (defaults work for a quick try).
  2. Instant results: key figures and cost breakdown update live as you type.
  3. Compare scenarios: tweak any parameter to compare costs and returns across plans.
  4. Copy key numbers: one-click copy for records or sharing with your advisor.

Key Points

  • Home Affordability Calculator is a free online finance tool — open and use, no sign-up.
  • All calculations run locally in your browser; your data never leaves the device.
  • Key capability: How much house you can afford from income and down payment.
  • Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Home affordability

Affordable payment = monthly income × payment ratio (30–35% comfort, 50% bank cap)
Max loan = payment × [1−(1+r)⁻ⁿ] ÷ r
Home price = loan ÷ (1 − down payment ratio)

FAQ

How do I use the Home Affordability Calculator?
Open the page and fill in the input fields — results update automatically. How much house you can afford from income and down payment.
Are the results accurate?
Yes. Standard financial formulas and published rate data are used. For official figures, consult your financial institution.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required.
Can I use the results for financial decisions?
Results are for reference. Consult a licensed financial advisor before major decisions.
Does it work on mobile?
Yes. Fully responsive on phones, tablets and desktops.

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Source & Updates

Based on published rate tables and standard financial formulas. Last updated: 2025-07

Authoritative sources:

Last updated:

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.

Cite this page: YiJianSuan. Home Affordability Calculator[EB/OL]. https://www.yijiansuan.com/en/c/finance/house-affordability

Results provided by this tool are for reference only and do not constitute professional advice.