Japan Finance Guides
Updated October 2026
Plain-language explainers on personal finance in Japan — how repayments actually work, what fixed vs variable means on a housing loan, and how saving and investing in yen fit together.
Loans
How Loan Repayments Work in Japan
Loans
Understanding Loan Interest in Japan
Mortgage
Fixed vs Variable Mortgage Rates in Japan
Mortgage
Japan Home Buying Affordability
Mortgage
Mortgage Affordability Basics in Japan
Vehicle
How Car Loans Work in Japan
Savings & Investing
Saving and Investing in Japan
Debt
Debt Consolidation Basics in Japan
Every guide pairs with a calculator
Guides explain the mechanics; calculators run your numbers. Start with any guide above, or open the full Japan calculator directory — ten tools covering loans, mortgages, car finance, savings and investment growth, all in Japanese yen.