Japan vs Hong Kong: Tax Comparison
Japan residents earning $400k face ~52.3% effective tax. Moving to Hong Kong (2–17% (capped at 15%)) could save you $149,045 per year.
Tax Savings at Every Income Level
Side-by-side comparison of annual tax paid in Japan vs Hong Kong (all amounts in USD).
| Annual Income | Japan Tax | Hong Kong Tax | Annual Savings |
|---|---|---|---|
| $100,000 | $36,454 (36.5%) | $14,696 (14.7%) | +$21,758 |
| $150,000 | $62,038 (41.4%) | $22,500 (15%) | +$39,538 |
| $200,000 | $90,258 (45.1%) | $30,000 (15%) | +$60,258 |
| $300,000 | $147,500 (49.2%) | $45,000 (15%) | +$102,500 |
| $400,000 | $209,045 (52.3%) | $60,000 (15%) | +$149,045 |
Side-by-Side Comparison
| Category | Japan | Hong Kong |
|---|---|---|
| Tax System | Progressive | 2–17% (capped at 15%) |
| Effective Rate ($400k) | 52.3% | 15% |
| Capital Gains Tax | Yes | None |
| Monthly CoL (mid-tier) | $3,300 | $4,000 |
| Min Residency Stay | — | 60+ days/yr |
| Visa Complexity | — | 6/10 |
| English Literacy | — | 8/10 |
Why People Move from Japan to Hong Kong
At $400,000 annual income, Japan residents pay approximately $209,045 in taxes. Relocating to Hong Kong reduces this to $60,000, a saving of $149,045 per year.
Cost of living in Hong Kong ($4,000/mo) is higher than Tokyo ($3,300/mo), but the tax savings of $149,045/yr far outweigh the $8,400 additional annual cost.
Hong Kong has strong English accessibility (8/10), making the transition easier for Japan expats.
Leaving Japan: What to Know
Tax Departure Rules for Japan
Japan imposes an exit tax (kokugai tenkin-zei) on unrealised gains exceeding ¥100 million in financial assets when a tax resident who has lived in Japan for 5 of the last 10 years departs. This was introduced in 2015 to prevent high-net-worth individuals from moving assets offshore tax-free.
Capital gains considerations: Japan taxes capital gains at approximately 20.315% (15.315% national + 5% resident). The exit tax only applies to financial assets exceeding ¥100 million. Real estate gains have separate rates depending on holding period (short-term: ~39%, long-term: ~20%).
Practical steps when leaving: Submit a moving-out notification (tenshutsu todoke) at your local ward office, file a final tax return or appoint a tax representative (nozei kanrinin), and close or restructure Japanese financial accounts. National Health Insurance ends upon deregistration.
Net financial benefit: After accounting for both tax savings ($149,045/yr) and cost of living differences (-$8,400/yr), relocating from Japan to Hong Kong produces a net annual benefit of approximately $140,645 at $400,000 income.
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Frequently Asked Questions
How much tax would I save moving from Japan to Hong Kong?
At a $400,000 USD annual income, moving from Japan to Hong Kong could save approximately $149k per year in taxes. Japan has an effective tax rate of ~52.3% at this income level, while Hong Kong charges 2–17% (capped at 15%). Actual savings depend on your income type, deductions, and residency status.
What is the tax rate in Hong Kong?
Progressive salaries tax 2-17%, but capped at 15% standard rate on total income (you pay the lower). Territorial system — only HK-sourced income is taxed. Foreign income fully exempt.
What is the cost of living in Hong Kong compared to Japan?
A mid-tier lifestyle in Hong Kong costs approximately $4,000/month, compared to $3,300/month in Tokyo. That's $700 more expensive per month, or $8,400 additional cost per year.
Do I need a visa to live in Hong Kong?
Employment visa, Investment visa, or Top Talent Pass Scheme (TTPS) for high earners. Ordinarily resident in HK. No strict day-count — based on permanent home and centre of vital interests.
What are the steps to leave Japan for tax purposes?
Submit a moving-out notification (tenshutsu todoke) at your local ward office, file a final tax return or appoint a tax representative (nozei kanrinin), and close or restructure Japanese financial accounts. National Health Insurance ends upon deregistration. Japan has social security agreements with over 20 countries including the US, UK, Australia, South Korea, Germany, and France. These allow pension aggregation and prevent double social security contributions.
What happens to my Japan pension if I move to Hong Kong?
Japan's National Pension (kokumin nenkin) requires 10 years of contributions for eligibility. Non-Japanese nationals leaving permanently can claim a lump-sum withdrawal payment (dattai ichijikin) covering up to 5 years of contributions. Employees' Pension Insurance (kosei nenkin) follows similar rules.
Will I pay capital gains tax when leaving Japan?
Japan taxes capital gains at approximately 20.315% (15.315% national + 5% resident). The exit tax only applies to financial assets exceeding ¥100 million. Real estate gains have separate rates depending on holding period (short-term: ~39%, long-term: ~20%). Japan imposes an exit tax (kokugai tenkin-zei) on unrealised gains exceeding ¥100 million in financial assets when a tax resident who has lived in Japan for 5 of the last 10 years departs. This was introduced in 2015 to prevent high-net-worth individuals from moving assets offshore tax-free.