Compare taxes and see how much you save moving from Japan to USA
Japan's national income tax is higher than US federal tax at every income level, and Japan also levies a separate ~10% local resident tax (juminzei) that the national figures do not include. At $100,000 USD, Japan's national income tax alone ($21,000) already exceeds US federal tax ($17,400) by $3,600 — but when juminzei is factored in, the total Japanese burden rises to approximately $31,000, nearly double the US federal-only figure. Americans living in Japan face an additional compliance burden: the US taxes citizens on worldwide income regardless of where they live. The US-Japan tax treaty and the Foreign Tax Credit (FTC) typically prevent double taxation, but filing requirements remain complex. Japan consistently ranks among the most popular destinations for American expats in Asia due to its safety, infrastructure, food culture, and quality of life.
Progressive National Income Tax
National rates 5-45% plus ~10% local resident tax (juminzei) — combined burden is high
Federal Income Tax
Federal progressive 10-37%; state tax additional — only federal shown here
At $100,000 income:
Japan's national income tax ($21,000 at $100K USD) exceeds US federal tax ($17,400) by $3,600. Japan also levies a ~10% local resident tax (juminzei), pushing the total Japanese burden to approximately $31,000 at $100K — nearly double the US federal-only rate. Americans living in Japan must still file US federal returns; the US-Japan tax treaty and foreign tax credits prevent double taxation.
| Income | JP Tax | US Tax | Savings | 10-Year |
|---|---|---|---|---|
| $50,000 | $8,000 | $4,500 | -$3,500 Japan costs more | -$35,000 |
| $75,000 | $14,500 | $8,500 | -$6,000 Japan costs more | -$60,000 |
| $100,000 | $21,000 | $17,400 | -$3,600 Japan costs more | -$36,000 |
| $150,000 | $37,000 | $29,000 | -$8,000 Japan costs more | -$80,000 |
| $250,000 | $73,000 | $55,000 | -$18,000 Japan costs more | -$180,000 |
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Transfer Money Internationally →Juminzei is Japan's local resident tax levied by prefectures and municipalities. It is approximately 10% of taxable income (combining a ~4% prefectural rate and ~6% municipal rate) and is collected separately from national income tax. Crucially, juminzei is assessed on the prior year's income — so new arrivals to Japan won't pay it until their second year of residency. At $100,000 USD equivalent income, juminzei adds roughly $10,000 to the national income tax bill of $21,000, bringing the total to approximately $31,000. This is a critical figure that many expats overlook when comparing Japan to the US.
Yes. The United States taxes its citizens on worldwide income regardless of where they live or where income is earned. Americans in Japan must file a US federal income tax return every year, reporting all income including Japanese salary. However, the Foreign Tax Credit (FTC) allows Americans to offset US tax liability with Japanese taxes already paid. Because Japan's combined tax burden typically exceeds US rates, most Americans in Japan owe little to nothing extra to the IRS after applying the FTC. The Foreign Earned Income Exclusion (FEIE) is an alternative but cannot be combined with FTC on the same income.
The US-Japan Tax Treaty (in force since 1972, with revisions) covers income from employment, dividends, interest, royalties, pensions, and government employment. Article 4 addresses residency tie-breaking rules for individuals who qualify as tax residents in both countries. The treaty provides reduced withholding rates on dividends (generally 10%) and interest (0–10%). Importantly, the US-Japan treaty has a Savings Clause, meaning the US retains the right to tax its citizens as if the treaty did not exist — so American expats cannot use the treaty to escape US filing obligations, though they can still claim the FTC.
Japan's National Health Insurance (NHI) system is universal — all residents, including foreigners staying over 3 months, are required to enrol. NHI covers 70% of most medical costs, with patients paying 30% out of pocket. Premiums are income-based and capped, making them manageable even at higher incomes — typically 5–10% of income. In contrast, the US has no universal healthcare system; employer-sponsored insurance is common, but premiums, deductibles, and out-of-pocket maxes can be very high. For expats, Japan's healthcare system is considered a major quality-of-life advantage over the US.
Japan offers several visa categories for Americans: the Highly Skilled Professional Visa (HSP) awards points based on income, qualifications, and age — reaching 70 points allows permanent residency after just 3 years, and 80 points after just 1 year. Standard work visas are employer-sponsored. Japan launched a new Specified Skilled Worker visa in 2019 for semi-skilled industries facing labour shortages. The Digital Nomad Visa launched in 2024 allows remote workers earning over ¥10 million (~$65,000 USD) annually to stay up to 6 months. For longer stays, Japan is increasingly competitive in attracting foreign talent.
This comparison shows only Japan national income tax versus US federal tax. In practice, most Americans also pay state income tax. In California (13.3% top rate), the combined federal + state burden at $100,000 would be approximately $29,000–$31,000 — comparable to Japan's full national + juminzei burden. In Texas or Florida (no state income tax), the US-only burden stays at the federal rate of ~$17,400, making the US significantly cheaper than Japan in total. High-tax US states reduce the gap considerably, while zero-tax states widen it.
Americans with Japanese bank accounts must comply with two separate US reporting requirements. FBAR (FinCEN Form 114) is required annually if the aggregate value of all foreign accounts exceeds $10,000 at any point in the year — filed separately from the tax return via FinCEN. FATCA (Form 8938) is filed with the tax return if foreign financial assets exceed $200,000 abroad (or $50,000 if living in the US). Japanese banks are FATCA-compliant and report US account holders to the IRS. Penalties for non-compliance are severe — up to $10,000 per violation for FBAR, and much higher for wilful failures. Americans in Japan should use a US expat tax specialist.