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Legislative Corruption Score in Tanzania

Tanzania: Legislative Corruption Score was 0.745 in 2025. ◆ Volatile

Latest (2025)
0.745
Change on year
down 39.2%
World rank
57th
of 174 countries
All-time high
2.52
in 1926
All-time low
0.501
in 1996
Years of data
100
1926–2025

Legislative Corruption Score in Tanzania, 1926–2025

0.511.522.5192619752025

Source: V-Dem (2026) – processed by Our World in Data.

Analysis

The most recent figure for legislative corruption score in Tanzania is 0.745, measured in 2025.

The figure is down 39.2% on the previous year and up 42.4% over ten years.

Over the whole period, legislative corruption score in Tanzania peaked at 2.52 in 1926 and was at its lowest, 0.501, in 1996.

Tanzania ranks 57th of 174 countries on this measure, in the middle of the range.

The series is highly variable year to year, so single readings are best treated with caution.

Legislative Corruption Score in Tanzania, year by year

Year Value Change
1926 2.52 —
1927 2.52 +0.0%
1928 2.52 +0.0%
1929 2.52 +0.0%
1930 2.52 +0.0%
1931 2.52 +0.0%
1932 2.52 +0.0%
1933 2.52 +0.0%
1934 2.52 +0.0%
1935 2.52 +0.0%
1936 2.52 +0.0%
1937 2.52 +0.0%
1938 2.52 +0.0%
1939 2.52 +0.0%
1940 2.52 +0.0%
1941 2.52 +0.0%
1942 2.52 +0.0%
1943 2.52 +0.0%
1944 2.52 +0.0%
1945 2.52 +0.0%
1946 2.52 +0.0%
1947 2.52 +0.0%
1948 2.52 +0.0%
1949 2.52 +0.0%
1950 2.52 +0.0%
1951 2.52 +0.0%
1952 2.52 +0.0%
1953 2.52 +0.0%
1954 2.52 +0.0%
1955 2.52 +0.0%
1956 2.52 +0.0%
1957 2.52 +0.0%
1958 2.52 +0.0%
1959 2.52 +0.0%
1960 1.49 -40.9%
1961 1.54 +3.2%
1962 1.54 +0.0%
1963 1.54 +0.0%
1964 1.54 +0.0%
1965 1.54 +0.0%
1966 1.54 +0.0%
1967 1.54 +0.0%
1968 1.54 +0.0%
1969 1.54 +0.0%
1970 1.54 +0.0%
1971 1.54 +0.0%
1972 1.54 +0.0%
1973 1.54 +0.0%
1974 1.54 +0.0%
1975 1.54 +0.0%
1976 1.54 +0.0%
1977 1.54 +0.0%
1978 1.54 +0.0%
1979 1.54 +0.0%
1980 1.54 +0.0%
1981 1.54 +0.0%
1982 1.54 +0.0%
1983 1.54 +0.0%
1984 1.54 +0.0%
1985 1.27 -17.2%
1986 1.27 +0.0%
1987 1.27 +0.0%
1988 1.27 +0.0%
1989 1.27 +0.0%
1990 1.27 +0.0%
1991 1.27 +0.0%
1992 1.01 -20.7%
1993 1.01 +0.0%
1994 1.01 +0.0%
1995 1.01 +0.0%
1996 0.501 -50.3%
1997 0.501 +0.0%
1998 0.501 +0.0%
1999 0.501 +0.0%
2000 0.501 +0.0%
2001 0.501 +0.0%
2002 0.501 +0.0%
2003 0.501 +0.0%
2004 0.501 +0.0%
2005 0.501 +0.0%
2006 0.501 +0.0%
2007 0.522 +4.2%
2008 0.522 +0.0%
2009 0.522 +0.0%
2010 0.522 +0.0%
2011 0.522 +0.0%
2012 0.522 +0.0%
2013 0.523 +0.2%
2014 0.523 +0.0%
2015 0.523 +0.0%
2016 0.553 +5.7%
2017 0.623 +12.7%
2018 0.698 +12.0%
2019 0.698 +0.0%
2020 0.698 +0.0%
2021 0.698 +0.0%
2022 1.15 +64.6%
2023 0.59 -48.7%
2024 1.23 +107.6%
2025 0.745 -39.2%

Tanzania compared with similar countries

  • Tanzania's 0.745 is above the median for lower middle income countries, which is -0.747. (45 countries reporting)
  • Tanzania's 0.745 is above the median for Sub-Saharan Africa, which is -0.375. (48 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
1920s 2.52 2.52 2.52 4
1930s 2.52 2.52 2.52 10
1940s 2.52 2.52 2.52 10
1950s 2.52 2.52 2.52 10
1960s 1.53 1.49 1.54 10
1970s 1.54 1.54 1.54 10
1980s 1.4 1.27 1.54 10
1990s 0.8584 0.501 1.27 10
2000s 0.5073 0.501 0.522 10
2010s 0.5707 0.522 0.698 10
2020s 0.8508 0.59 1.23 6

Countries ranked near Tanzania

  1. 54 Kuwait 0.837 compare
  2. 55 Spain 0.81 compare
  3. 56 Botswana 0.787 compare
  4. 58 Oman 0.683 compare
  5. 59 Benin 0.672 compare
  6. 60 Ethiopia 0.641 compare

See the full ranking of 174 places →

More social development data for Tanzania

All data for Tanzania →

Frequently asked questions

What is legislative corruption score in Tanzania?
Legislative corruption score in Tanzania was 0.745 in 2025, according to V-Dem (2026) – processed by Our World in Data.
What is the highest legislative corruption score recorded in Tanzania?
The highest recorded value was 2.52 in 1926.
What is the lowest legislative corruption score recorded in Tanzania?
The lowest recorded value was 0.501 in 1996.
How does Tanzania rank for legislative corruption score?
Tanzania ranks 57th out of 174 countries with data for 2025.
Is legislative corruption score rising or falling in Tanzania?
Over the last ten years it is up 42.4%. The long-run trend across the full record is volatile.
Where does this Tanzania 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.

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Legislative Corruption Score in Tanzania. Statizoid, drawing on V-Dem (2026) – processed by Our World in Data. Retrieved 23 September 2026, from https://social-development.statizoid.com/stat/legislative-corruption-score/tanzania/

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About this data

Indicator
Legislative Corruption Score
Source
V-Dem (2026) – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
174 places, 17,541 data points, 1789–2025
Last refreshed

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.