Income inequality: Gini coefficient before and after tax (Luxembourg) in Japan
Japan: Income inequality: Gini coefficient before and after tax (Luxembourg) was 0.305 in 2020. ▬ Flat
Income inequality: Gini coefficient before and after tax in Japan, 2008–2020
Source: Luxembourg Income Study (2026) – with minor processing by Our World in Data.
Analysis
Japan recorded 0.305 for income inequality: gini coefficient before and after tax in 2020.
Compared with earlier readings it is down 1.2% on the previous year and up 3.8% over ten years.
Over the whole period, income inequality: gini coefficient before and after tax in Japan peaked at 0.3291 in 2008 and was at its lowest, 0.2882, in 2015.
Japan ranks 28th of 48 countries on this measure, in the middle of the range.
Income inequality: Gini coefficient before and after tax (Luxembourg) in Japan, year by year
| Year | Value | Change |
|---|---|---|
| 2008 | 0.3291 | — |
| 2009 | 0.3074 | -6.6% |
| 2010 | 0.2938 | -4.4% |
| 2011 | 0.3084 | +5.0% |
| 2012 | 0.3035 | -1.6% |
| 2013 | 0.2974 | -2.0% |
| 2014 | 0.2924 | -1.7% |
| 2015 | 0.2882 | -1.4% |
| 2016 | 0.2968 | +3.0% |
| 2017 | 0.2975 | +0.3% |
| 2018 | 0.3065 | +3.0% |
| 2019 | 0.3086 | +0.7% |
| 2020 | 0.305 | -1.2% |
Japan compared with similar countries
- Japan's 0.305 is above the median for high income countries, which is 0.2989, 1.0× the median. (36 countries reporting)
- Japan's 0.305 is below the median for East Asia & Pacific, which is 0.3315, 92% of the median. (5 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 0.3183 | 0.3074 | 0.3291 | 2 |
| 2010s | 0.2993 | 0.2882 | 0.3086 | 10 |
| 2020s | 0.305 | 0.305 | 0.305 | 1 |
Countries ranked near Japan
More poverty & inequality data for Japan
- Number of income/consumption surveys in the past decade available via the World Bank 5 surveys (2025)
- Number of income/consumption surveys in the past decade available via 0 surveys per person (2025)
- Number of income/consumption surveys in the past decade available via 0 surveys per US$ of GDP (2025)
- Fertility rate vs. share living in extreme poverty 1.21 live births per woman (2023)
- Cereal yield vs. share in extreme poverty 6,245 kg per hectare (2023)
- Cereal yield vs extreme poverty, per unit of GDP 0 units per US$ of GDP (2023)
- Cereal yield vs extreme poverty, annual growth rate -1.18 % change on previous year (2023)
- Tax revenues vs income inequality, gaps filled 34.86 (2022)
- Tax revenue as share of GDP vs. income inequality 34.9% (2022)
- Tax revenues vs income inequality, per unit of GDP 0 units per US$ of GDP (2022)
Frequently asked questions
- What is income inequality: gini coefficient before and after tax in Japan?
- Income inequality: gini coefficient before and after tax in Japan was 0.305 in 2020, according to Luxembourg Income Study (2026) – with minor processing by Our World in Data.
- What is the highest income inequality: gini coefficient before and after tax recorded in Japan?
- The highest recorded value was 0.3291 in 2008.
- What is the lowest income inequality: gini coefficient before and after tax recorded in Japan?
- The lowest recorded value was 0.2882 in 2015.
- How does Japan rank for income inequality: gini coefficient before and after tax?
- Japan ranks 28th out of 48 countries with data for 2020.
- Is income inequality: gini coefficient before and after tax rising or falling in Japan?
- Over the last ten years it is up 3.8%. The long-run trend across the full record is flat.
- Where does this Japan data come from?
- The figures come from Luxembourg Income Study (2026) – with minor processing by Our World in Data, published as part of Income inequality: Gini coefficient before and after tax. Statizoid updates them automatically from the source API.
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About this data
The Gini coefficient measures inequality on a scale from 0 to 1. Higher values indicate higher inequality. Inequality is measured here in terms of income after taxes and benefits.