How to Use the Japan Self-Employed Tax Calculator

Step-by-Step Guide:

1. Enter Your Gross Income

   • Type in your total gross income and business expenses
   • Example: ¥5,000,000

2. Select Your Prefecture (Optional)

   • Choose from 5 prefectures
   • Tax rates vary by prefecture
   • Default: Tokyo

3. Add Pre-Tax Deductions (Optional)

   • Social Insurance: Pension, health insurance, and employment insurance
   • Basic Deduction: ¥480,000 standard deduction
   • Dependent Deductions: Spouse and child deductions

4. Click "Show Advanced Options" (Optional)

   • Filing status (single, married, etc.)
   • Number of dependents
   • Additional withholdings

5. View Your Results

   • See your take-home pay instantly
   • View detailed tax breakdown with visual charts
   • See salary conversions across all frequencies

What You'll See:

• Gross Salary: Your total income before deductions
• Net Salary (Take-Home Pay): What goes into your bank account
• Income Tax: Income tax amount and rate
• Resident Tax: Social security/contributions
• Effective Tax Rate: Your actual tax percentage
• Frequency Breakdown: Annual, monthly, weekly, daily, and hourly rates

Understanding Your Japanese Salary and Taxes

National Income Tax (2026)

Progressive income tax with 7 brackets from 5% to 45%

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Example Calculation:

For a ¥5,000,000 annual salary:

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1. Gross Annual Salary: ¥5,000,000
2. Primary Tax: ~1000000 (example)
3. Secondary Tax: ~400000 (example)
4. Net Salary: ~¥3,600,000

Use the calculator above for accurate calculations.

Resident Tax

Prefectural (4%) and municipal (6%) tax totaling 10%

• Employee Rate: 10%
• What It Funds: undefined

Example: On ¥5,000,000 annual salary = approximately ¥NaN/year

Regional Tax Differences

Japan has 5 prefectures with varying tax rates:

• Tokyo: Unique prefecture tax rates and brackets
• Osaka: Unique prefecture tax rates and brackets
• Kyoto: Unique prefecture tax rates and brackets
• Yokohama: Unique prefecture tax rates and brackets
• Nagoya: Unique prefecture tax rates and brackets

Use the calculator above to select your specific prefecture for accurate calculations.

Common Questions About Japanese Salaries

How much is taken out of my paycheck in Japan?

For most Japanese workers, approximately undefined of gross salary goes to taxes and deductions:

• Income Tax: undefined (depends on income)
• Resident Tax: 10%

The exact amount depends on your income level, prefecture, and personal circumstances.

What is gross vs net salary?

• Gross Salary: Your salary before any deductions (what's in your employment contract)
• Net Salary (Take-Home Pay): What actually arrives in your bank account after all taxes and deductions

Example:

• Gross: ¥5,000,000/year
• Net: ~¥NaN/year
• Difference: ~¥NaN in taxes

How does social insurance work for employees?

Social insurance in Japan includes: Pension (9.15% employee share), Health Insurance (~5%), and Employment Insurance (0.6%). Combined, employees pay about 14-15% of salary for social insurance, with employers matching most contributions.

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