Latest posts
Japan Resident Tax Calculator (Estimate, 2026)
Enter last year’s gross salary to instantly estimate your annual Japan resident tax (per-capita + income-based levy).
Tsumitate vs Growth NISA Explained (2026)
How Japan’s Tsumitate and Growth NISA allowances differ, their annual and lifetime limits, and how to use both together — compared with the Roth IRA and 401(k).
iDeCo for Americans in Japan (2026)
A practical guide to Japan’s iDeCo for foreign residents — eligibility, contribution limits, and the PFIC, FBAR, and FATCA reporting most guides skip.
Japan iDeCo Tax Deduction Calculator (2026)
Enter your taxable income, contributor type, and monthly contribution to estimate your annual tax savings from Japan’s iDeCo pension system.
Japan’s Summer Bonus, Explained (2026)
How Japan’s summer bonus withholding actually works, compared to the US flat-rate approach, plus how to weigh savings vs. NISA investing vs. sending money home.
Summer Internships in Japan (2026 Guide)
A practical guide to Japan’s summer internship season for international students — work permits, hour limits, and how internship pay is taxed.
Side Jobs in Japan: Rules & Taxes (2026)
Japan’s rules on side jobs, the JPY 200,000 tax filing threshold, visa considerations for foreign workers, and how it compares to US side-hustle taxes.
Japan’s Digital Nomad Visa: A Guide (2026)
A practical breakdown of Japan’s digital nomad visa — income requirements, length of stay, and how it affects your tax residency.
Japan vs US Dividend Tax Calculator (2026)
For US citizens in Japan: enter your income and dividend to estimate US tax, Japan tax, and the foreign tax credit offset.
US 401(k) / IRA Tax Savings Calculator (2026)
Enter your income and planned 401(k) or IRA contributions to estimate your US federal tax savings for the year, based on current brackets.