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US Capital Gains Tax Calculator (2026)

Enter your income and long-term capital gain to estimate US federal tax on foreign stock sales as an American living in Japan.
Japan Freelancer Tax Calculator (2026)

Enter revenue, expenses, and your Blue Return deduction to estimate your combined income and resident tax as a Japan freelancer.
Japan Tax-Free Refund Calculator (2026)

Enter a purchase amount and tax rate to estimate the consumption tax refund for a visiting friend or family member.
Meet iDeCo, Japan’s Answer to a 401(k)

Japan’s iDeCo lets most working foreign residents deduct retirement contributions from taxable income. Here’s how eligibility and contribution caps work.
Renewing Your Visa Status in Japan (2026)

A practical checklist for what happens to your tax residency, health insurance, and pension enrollment when you change or renew your Japan status of residence.
Japan Retirement Tax Calculator (2026)

Enter your years of service and retirement payout to instantly calculate estimated income tax, reconstruction tax, resident tax, and your take-home amount.
Can You Open a Korean ISA From Japan? (2026)

Korea’s tax-advantaged ISA is restricted to Korean tax residents, ruling out most foreign residents in Japan. Here’s why, plus real investing alternatives.