Legislative Corruption Score in Thailand
Thailand: Legislative Corruption Score was -0.478 in 2025. ▲ Rising
Legislative Corruption Score in Thailand, 1932–2025
Source: V-Dem (2026) – processed by Our World in Data.
Analysis
In 2025, legislative corruption score in Thailand stood at -0.478. That is the highest value across all 84 years on record.
Compared with earlier readings it is up 68.3% over ten years.
Over the whole period, legislative corruption score in Thailand peaked at -0.478 in 2024 and was at its lowest, -2.25, in 1932.
Thailand ranks 98th of 174 countries on this measure, in the middle of the range.
The long-run direction has been consistently rising across the 84 years of available data.
Legislative Corruption Score in Thailand, year by year
| Year | Value | Change |
|---|---|---|
| 1932 | -2.25 | — |
| 1933 | -2.25 | -0.0% |
| 1934 | -2.25 | -0.0% |
| 1935 | -2.25 | -0.0% |
| 1936 | -2.25 | -0.0% |
| 1937 | -2.25 | -0.0% |
| 1938 | -2.25 | -0.0% |
| 1939 | -2.25 | -0.0% |
| 1940 | -2.25 | -0.0% |
| 1941 | -2.25 | -0.0% |
| 1942 | -2.25 | -0.0% |
| 1943 | -2.25 | -0.0% |
| 1944 | -2.25 | -0.0% |
| 1945 | -2.25 | -0.0% |
| 1946 | -2.25 | -0.0% |
| 1947 | -2.25 | -0.0% |
| 1948 | -2.23 | -0.8% |
| 1949 | -2.23 | -0.0% |
| 1950 | -2.23 | -0.0% |
| 1951 | -2.23 | -0.0% |
| 1952 | -2.23 | -0.0% |
| 1953 | -2.23 | -0.0% |
| 1954 | -2.23 | -0.0% |
| 1955 | -2.23 | -0.0% |
| 1956 | -2.23 | -0.0% |
| 1957 | -2.23 | -0.0% |
| 1958 | -2.23 | -0.0% |
| 1969 | -2.24 | +0.2% |
| 1970 | -2.24 | -0.0% |
| 1971 | -2.24 | -0.0% |
| 1972 | -2.24 | -0.0% |
| 1973 | -2.24 | -0.0% |
| 1974 | -2.24 | -0.0% |
| 1975 | -2.24 | -0.0% |
| 1976 | -2.24 | -0.0% |
| 1977 | -2.24 | -0.0% |
| 1978 | -2.24 | -0.0% |
| 1979 | -2.24 | -0.0% |
| 1980 | -2.24 | -0.0% |
| 1981 | -2.24 | -0.0% |
| 1982 | -2.24 | -0.0% |
| 1983 | -2.24 | -0.0% |
| 1984 | -2.24 | -0.0% |
| 1985 | -2.24 | -0.0% |
| 1986 | -2.24 | -0.0% |
| 1987 | -2.24 | -0.0% |
| 1988 | -2.24 | -0.0% |
| 1989 | -2.24 | -0.0% |
| 1990 | -2.24 | -0.0% |
| 1991 | -2.24 | -0.0% |
| 1992 | -1.69 | -24.5% |
| 1993 | -1.69 | -0.0% |
| 1994 | -1.69 | -0.0% |
| 1995 | -1.69 | -0.0% |
| 1996 | -1.69 | -0.0% |
| 1997 | -1.12 | -33.6% |
| 1998 | -1.12 | -0.0% |
| 1999 | -1.12 | -0.0% |
| 2000 | -1.12 | -0.0% |
| 2001 | -1.12 | -0.0% |
| 2002 | -1.12 | -0.0% |
| 2003 | -1.12 | -0.0% |
| 2004 | -1.12 | -0.0% |
| 2005 | -1.12 | -0.0% |
| 2006 | -1.12 | -0.0% |
| 2007 | -1.12 | -0.0% |
| 2008 | -1.16 | +3.0% |
| 2009 | -1.16 | -0.0% |
| 2010 | -1.16 | -0.0% |
| 2011 | -1.16 | -0.0% |
| 2012 | -1.16 | -0.0% |
| 2013 | -1.3 | +12.9% |
| 2014 | -1.89 | +44.8% |
| 2015 | -1.51 | -20.1% |
| 2016 | -1.51 | -0.0% |
| 2017 | -1.51 | -0.0% |
| 2018 | -1.51 | -0.0% |
| 2019 | -1.55 | +2.9% |
| 2020 | -1.14 | -26.6% |
| 2021 | -1.14 | -0.0% |
| 2022 | -0.732 | -35.7% |
| 2023 | -0.732 | -0.0% |
| 2024 | -0.478 | -34.7% |
| 2025 | -0.478 | -0.0% |
Thailand compared with similar countries
- Thailand's -0.478 is above the median for upper middle income countries, which is -0.683, 70% of the median. (48 countries reporting)
- Thailand's -0.478 is below the median for East Asia & Pacific, which is 0.3625. (22 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1930s | -2.25 | -2.25 | -2.25 | 8 |
| 1940s | -2.25 | -2.25 | -2.23 | 10 |
| 1950s | -2.23 | -2.23 | -2.23 | 9 |
| 1960s | -2.24 | -2.24 | -2.24 | 1 |
| 1970s | -2.24 | -2.24 | -2.24 | 10 |
| 1980s | -2.24 | -2.24 | -2.24 | 10 |
| 1990s | -1.63 | -2.24 | -1.12 | 10 |
| 2000s | -1.13 | -1.16 | -1.12 | 10 |
| 2010s | -1.42 | -1.89 | -1.16 | 10 |
| 2020s | -0.783 | -1.14 | -0.478 | 6 |
Countries ranked near Thailand
More social development data for Thailand
- Refugees under the mandate of the UNHCR by country or territory of 84,017 (2025)
- Refugees under the mandate of the UNHCR by country or territory of 327 (2025)
- Political Rights Rating 6 (2025)
- Electoral democracy 0 (2025)
- Political rights rating fh, annual growth rate 0 % change on previous year (2025)
- Political rights rating fh, gaps filled 6 (2025)
- Refugees under the mandate of the UNHCR by country or territory of 0 units per person (2025)
- Refugees under the mandate of the UNHCR by country or territory of 327 (2025)
- Refugees under the mandate of the UNHCR by country or territory of 0.0012 units per person (2025)
- Refugees under the mandate of the UNHCR by country or territory of 0 units per US$ of GDP (2025)
Frequently asked questions
- What is legislative corruption score in Thailand?
- Legislative corruption score in Thailand was -0.478 in 2025, according to V-Dem (2026) – processed by Our World in Data.
- What is the highest legislative corruption score recorded in Thailand?
- The highest recorded value was -0.478 in 2024.
- What is the lowest legislative corruption score recorded in Thailand?
- The lowest recorded value was -2.25 in 1932.
- How does Thailand rank for legislative corruption score?
- Thailand ranks 98th out of 174 countries with data for 2025.
- Is legislative corruption score rising or falling in Thailand?
- Over the last ten years it is up 68.3%. The long-run trend across the full record is rising.
- Where does this Thailand data come from?
- The figures come from V-Dem (2026) – processed by Our World in Data, published as part of Legislative Corruption Score. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 84 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Data by V-Dem. Expert estimates of the extent to which members of the legislature abuse their position for financial gain, such as bribes, government contracts, future employment, or stealing from the state. Higher scores mean less corruption. A score of 0 is approximately the average across all countries and years.