Gini coefficient (after tax) in Japan
Japan: Gini coefficient (after tax) was 0.305 in 2020. ▬ Flat
Gini coefficient (after tax) in Japan, 2008–2020
Source: Luxembourg Income Study (2026) – with minor processing by Our World in Data.
Analysis
In 2020, gini coefficient (after tax) in Japan stood at 0.305.
The figure is down 1.2% on the previous year and up 3.8% over ten years.
Over the whole period, gini coefficient (after tax) in Japan peaked at 0.3291 in 2008 and was at its lowest, 0.2882, in 2015.
That places Japan 28th out of 48 countries with data for 2020, putting it in the middle of the range.
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)
- 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)
- Tax revenue as share of GDP vs. income inequality 34.9% (2022)
- Gender Inequality Index 0.059 (2023)
- Lifespan inequality: Gini coefficient in women 0.0703 (2023)
- Lifespan inequality: Gini coefficient by sex 0.0703 (2023)
- Lifespan inequality: Gini coefficient in men 0.0856 (2023)
- Share of government consumption in GDP vs. share of population living in extreme poverty 23.6% (2023)
- Income inequality: Atkinson index 0.1712 (2023)
Frequently asked questions
- What is gini coefficient (after tax) in Japan?
- Gini coefficient (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 gini coefficient (after tax) recorded in Japan?
- The highest recorded value was 0.3291 in 2008.
- What is the lowest gini coefficient (after tax) recorded in Japan?
- The lowest recorded value was 0.2882 in 2015.
- How does Japan rank for gini coefficient (after tax)?
- Japan ranks 28th out of 48 countries with data for 2020.
- Is gini coefficient (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 Gini coefficient (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.