Mortgage Calculator — Japan
Estimate your monthly mortgage payment in JPY using Japan's typical rates, and see the full interest cost. No signup, no tracking.
Local rates & providers
Variable-rate mortgages ≈ 0.3–0.8% p.a., 35-year fixed ≈ 1.5–2%. BoJ ended negative rates in 2024, raised to 0.75% Dec 2025. Max tenure 35 years. Providers: MUFG, SMBC, Mizuho, Rakuten Bank, au Jibun Bank.
Reference figures, ~2026. The Bank of Japan (BoJ) sets the policy rate; your offered rate depends on your profile, deposit and the lender. Verify current rates before deciding.
Worked example
For every JPY 1,000,000 borrowed at 1.50% over 20 years:
- Monthly payment: JPY 4,825
- Total repaid: JPY 1,158,109
- Total interest: JPY 158,109
Scale this to your loan amount — e.g. JPY 3,000,000 costs about 3× these figures. A larger deposit and shorter term cut the interest sharply.
Frequently Asked Questions
How is the mortgage payment calculated in Japan?
Lenders use the reducing-balance formula P × r × (1+r)ⁿ ÷ ((1+r)ⁿ − 1), where P is the loan, r the monthly rate and n the number of months. The fin·calc tool applies the same formula with Japan's typical rate.
What is the current home loan rate in Japan?
As a 2026 reference, typical rates are around 1.5% per year, linked to the Bank of Japan (BoJ) policy rate. Variable-rate mortgages ≈ 0.3–0.8% p.a., 35-year fixed ≈ 1.5–2%. BoJ ended negative rates in 2024, raised to 0.75% Dec 2025. Max tenure 35 years. Providers: MUFG, SMBC, Mizuho, Rakuten Bank, au Jibun Bank.
How much deposit do I need?
A larger down payment lowers both your rate and total interest, and reduces the lender's risk. Most lenders also add valuation, legal and registration costs on top of the deposit.
Can I reduce the total interest?
Yes — a bigger deposit, a shorter term, and extra or early repayments all cut total interest significantly. Use the prepayment option in the calculator to see your exact saving.