Compare taxes and see how much you save moving from Japan to China
Japan and China are Asia's two largest economies and home to large expat professional communities β but their tax systems differ significantly in structure and outcome. Japan's national income tax (5β45%) plus 10% local inhabitant tax produces a combined top rate of 55%, with substantial social insurance contributions (~14.4% employee). At comparable USD-equivalent salaries, Japan's total effective deduction is typically 5β10 percentage points higher than China's. China's IIT (3β45% progressive) combined with Five Insurances and Housing Fund contributions (~15.5% employee) produces effective total rates of 28β38% at typical professional salary levels. For expats at mid-level salaries ($80,000β$120,000), China generally produces more take-home than Japan. Japan counters with strong employment protections, a stable yen-denominated salary environment, and world-class quality of life in Tokyo and Osaka.
Combined Top Rate
45% national + 10% local inhabitant tax
Top Rate (above CNY 960,000)
Plus Five Insurances + Housing Fund ~15.5% employee
At $100,000 income:
That is $667/month back in your pocket!
| Income | JP Tax | CN Tax | Savings | 10-Year |
|---|---|---|---|---|
| $50,000 (~Β₯8M / ~CNY 360K) | ~Β₯960K national tax + ~Β₯520K local + ~Β₯1,100K social = ~Β₯2,580K (~32%) | ~CNY 52,500 IIT + ~CNY 55,800 social = ~CNY 108,300 (~30%) | Similar (within 2%) | $10,000 |
| $80,000 (~Β₯12.8M / ~CNY 576K) | ~Β₯2,080K national tax + ~Β₯900K local + ~Β₯1,320K social = ~Β₯4,300K (~34%) | ~CNY 113,000 IIT + ~CNY 71,000 social = ~CNY 184,000 (~32%) | China saves ~$3,000 | $30,000 |
| $100,000 (~Β₯16M / ~CNY 720K) | ~Β₯3,040K national tax + ~Β₯1,180K local + ~Β₯1,420K social = ~Β₯5,640K (~35%) | ~CNY 167,000 IIT + ~CNY 80,000 social = ~CNY 247,000 (~34%) | China saves ~$4,000 | $40,000 |
| $150,000 (~Β₯24M / ~CNY 1,080K) | ~Β₯5,760K national tax + ~Β₯1,860K local + ~Β₯1,560K social (capped) = ~Β₯9,180K (~38%) | ~CNY 315,000 IIT + ~CNY 88,000 social (capped) = ~CNY 403,000 (~37%) | Similar (within 1β2%) | $15,000 |
| $200,000 (~Β₯32M / ~CNY 1,440K) | ~Β₯9,200K national tax + ~Β₯2,590K local + ~Β₯1,560K social (capped) = ~Β₯13,350K (~42%) | ~CNY 489,000 IIT + ~CNY 88,000 social (capped) = ~CNY 577,000 (~40%) | China saves ~$5,000 | $50,000 |
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Hire or Work Compliantly in Japan or China βJapan's inhabitant tax (jΕ«minzei) is a 10% flat tax on income levied by prefectures (4%) and municipalities (6%), in addition to national income tax. It is calculated on the prior year's income and paid in installments the following year β meaning new arrivals pay no inhabitant tax in their first year but face a double payment in year two. At Β₯10M salary, inhabitant tax is approximately Β₯700,000βΒ₯900,000/year. It applies to all residents registered in Japan on January 1 of the assessment year.
Prior to 2022, foreign professionals in China could claim tax-free allowances for housing, meals, language training, children's education, and home leave β reducing taxable income substantially. The 2019β2022 reform phased out most of these foreigner-specific allowances, bringing foreign nationals under the same individual deduction system as Chinese nationals (standard deduction CNY 60,000/year plus additional deductions for education, housing loan interest, etc.). The transition effectively increased the tax burden for many mid-to-high earning expats. Some allowances for specific visa categories and treaty provisions remain, but the broad foreigner advantage is significantly reduced.
For short-term assignments (under 5 years in Japan, under 6 years in China), both countries' non-resident or limited residency rules can shelter foreign-source income. Japan's non-permanent resident status (under 5 of last 10 years) means foreign-source income not remitted to Japan is untaxed β very valuable for expats with offshore investments. China's 6-year rule is similarly generous for shorter assignments. On pure take-home from local salary: China is marginally cheaper at $80,000β$120,000. Japan offers superior quality of life, stability, and career brand for most Western professionals. For investment banking and tech at high salaries ($150K+), the gap narrows and Japan's non-permanent resident protection becomes more valuable.
Japanese employees contribute to four main social insurance schemes: Kosei Nenkin (employees' pension) at 9.15% of standard monthly remuneration; Kenpo (health insurance) at approximately 5.02% (varies by health association); Koyo Hoken (employment insurance) at 0.6%; and from age 40, Kaigo Hoken (long-term care insurance) at approximately 0.9%. Total employee contributions are approximately 14.4β15.3% of salary. There are contribution ceilings: the pension ceiling is approximately Β₯650,000/month standard remuneration; health insurance ceilings vary. At annual salary of Β₯15M, the effective social contribution rate falls to approximately 8β10% due to these caps.
Yes β US citizens and Green Card holders must file US federal returns regardless of where they live. Both Japan and China have tax treaties with the US that prevent double taxation. Japan's relatively high rates (35β42% effective at higher incomes) often generate excess foreign tax credits, eliminating US tax liability. China's lower effective rates at mid-incomes may leave residual US tax liability after the Foreign Tax Credit. FBAR is required if total foreign financial accounts exceed $10,000. For Japan specifically, the Japan-US treaty has specific provisions for pension income and social security. US expats in both countries benefit from specialist preparation by firms familiar with Asian treaty positions.