Tax revenue vs. Electoral Democracy Index in Iran, Islamic Republic of
Iran, Islamic Republic of: Tax revenue vs. Electoral Democracy Index was 0.159 in 2025. ▲ Rising
Latest (2025)
0.159
Change on year
down 4.2%
World rank
152nd
of 176 countries
All-time high
0.234
in 1999
All-time low
0.029
in 1900
Years of data
126
1900–2025
Tax revenue vs. Electoral Democracy Index in Iran, Islamic Republic of, 1900–2025
Source: V-Dem (2026) – processed by Our World in Data.
Analysis
The most recent figure for tax revenue vs. electoral democracy index in Iran, Islamic Republic of is 0.159, measured in 2025.
Compared with earlier readings it is down 4.2% on the previous year and down 14.5% over ten years.
Over the whole period, tax revenue vs. electoral democracy index in Iran, Islamic Republic of peaked at 0.234 in 1999 and was at its lowest, 0.029, in 1900.
Iran, Islamic Republic of ranks 152nd of 176 countries on this measure, in the bottom quarter.
The long-run direction has been consistently rising across the 126 years of available data.
Tax revenue vs. Electoral Democracy Index in Iran, Islamic Republic of, year by year
| Year | Value | Change |
|---|---|---|
| 1900 | 0.029 | — |
| 1901 | 0.029 | +0.0% |
| 1902 | 0.029 | +0.0% |
| 1903 | 0.029 | +0.0% |
| 1904 | 0.029 | +0.0% |
| 1905 | 0.029 | +0.0% |
| 1906 | 0.08 | +175.9% |
| 1907 | 0.121 | +51.2% |
| 1908 | 0.118 | -2.5% |
| 1909 | 0.106 | -10.2% |
| 1910 | 0.137 | +29.2% |
| 1911 | 0.136 | -0.7% |
| 1912 | 0.121 | -11.0% |
| 1913 | 0.121 | +0.0% |
| 1914 | 0.121 | +0.0% |
| 1915 | 0.121 | +0.0% |
| 1916 | 0.121 | +0.0% |
| 1917 | 0.121 | +0.0% |
| 1918 | 0.121 | +0.0% |
| 1919 | 0.121 | +0.0% |
| 1920 | 0.121 | +0.0% |
| 1921 | 0.088 | -27.3% |
| 1922 | 0.145 | +64.8% |
| 1923 | 0.113 | -22.1% |
| 1924 | 0.115 | +1.8% |
| 1925 | 0.08 | -30.4% |
| 1926 | 0.056 | -30.0% |
| 1927 | 0.115 | +105.4% |
| 1928 | 0.115 | +0.0% |
| 1929 | 0.115 | +0.0% |
| 1930 | 0.115 | +0.0% |
| 1931 | 0.115 | +0.0% |
| 1932 | 0.114 | -0.9% |
| 1933 | 0.113 | -0.9% |
| 1934 | 0.113 | +0.0% |
| 1935 | 0.113 | +0.0% |
| 1936 | 0.113 | +0.0% |
| 1937 | 0.113 | +0.0% |
| 1938 | 0.113 | +0.0% |
| 1939 | 0.113 | +0.0% |
| 1940 | 0.113 | +0.0% |
| 1941 | 0.1 | -11.5% |
| 1942 | 0.122 | +22.0% |
| 1943 | 0.127 | +4.1% |
| 1944 | 0.158 | +24.4% |
| 1945 | 0.164 | +3.8% |
| 1946 | 0.161 | -1.8% |
| 1947 | 0.161 | +0.0% |
| 1948 | 0.159 | -1.2% |
| 1949 | 0.159 | +0.0% |
| 1950 | 0.156 | -1.9% |
| 1951 | 0.185 | +18.6% |
| 1952 | 0.205 | +10.8% |
| 1953 | 0.118 | -42.4% |
| 1954 | 0.058 | -50.8% |
| 1955 | 0.102 | +75.9% |
| 1956 | 0.057 | -44.1% |
| 1957 | 0.058 | +1.8% |
| 1958 | 0.058 | +0.0% |
| 1959 | 0.058 | +0.0% |
| 1960 | 0.061 | +5.2% |
| 1961 | 0.061 | +0.0% |
| 1962 | 0.06 | -1.6% |
| 1963 | 0.061 | +1.7% |
| 1964 | 0.109 | +78.7% |
| 1965 | 0.11 | +0.9% |
| 1966 | 0.11 | +0.0% |
| 1967 | 0.11 | +0.0% |
| 1968 | 0.111 | +0.9% |
| 1969 | 0.111 | +0.0% |
| 1970 | 0.113 | +1.8% |
| 1971 | 0.113 | +0.0% |
| 1972 | 0.113 | +0.0% |
| 1973 | 0.113 | +0.0% |
| 1974 | 0.113 | +0.0% |
| 1975 | 0.107 | -5.3% |
| 1976 | 0.107 | +0.0% |
| 1977 | 0.107 | +0.0% |
| 1978 | 0.11 | +2.8% |
| 1979 | 0.159 | +44.5% |
| 1980 | 0.167 | +5.0% |
| 1981 | 0.121 | -27.5% |
| 1982 | 0.106 | -12.4% |
| 1983 | 0.104 | -1.9% |
| 1984 | 0.108 | +3.8% |
| 1985 | 0.109 | +0.9% |
| 1986 | 0.109 | +0.0% |
| 1987 | 0.171 | +56.9% |
| 1988 | 0.177 | +3.5% |
| 1989 | 0.168 | -5.1% |
| 1990 | 0.16 | -4.8% |
| 1991 | 0.16 | +0.0% |
| 1992 | 0.159 | -0.6% |
| 1993 | 0.162 | +1.9% |
| 1994 | 0.165 | +1.9% |
| 1995 | 0.165 | +0.0% |
| 1996 | 0.174 | +5.5% |
| 1997 | 0.218 | +25.3% |
| 1998 | 0.231 | +6.0% |
| 1999 | 0.234 | +1.3% |
| 2000 | 0.233 | -0.4% |
| 2001 | 0.234 | +0.4% |
| 2002 | 0.232 | -0.9% |
| 2003 | 0.232 | +0.0% |
| 2004 | 0.207 | -10.8% |
| 2005 | 0.177 | -14.5% |
| 2006 | 0.173 | -2.3% |
| 2007 | 0.173 | +0.0% |
| 2008 | 0.167 | -3.5% |
| 2009 | 0.158 | -5.4% |
| 2010 | 0.144 | -8.9% |
| 2011 | 0.145 | +0.7% |
| 2012 | 0.158 | +9.0% |
| 2013 | 0.174 | +10.1% |
| 2014 | 0.183 | +5.2% |
| 2015 | 0.186 | +1.6% |
| 2016 | 0.186 | +0.0% |
| 2017 | 0.185 | -0.5% |
| 2018 | 0.182 | -1.6% |
| 2019 | 0.181 | -0.5% |
| 2020 | 0.165 | -8.8% |
| 2021 | 0.158 | -4.2% |
| 2022 | 0.148 | -6.3% |
| 2023 | 0.153 | +3.4% |
| 2024 | 0.166 | +8.5% |
| 2025 | 0.159 | -4.2% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1900s | 0.0599 | 0.029 | 0.121 | 10 |
| 1910s | 0.1241 | 0.121 | 0.137 | 10 |
| 1920s | 0.1063 | 0.056 | 0.145 | 10 |
| 1930s | 0.1135 | 0.113 | 0.115 | 10 |
| 1940s | 0.1424 | 0.1 | 0.164 | 10 |
| 1950s | 0.1055 | 0.057 | 0.205 | 10 |
| 1960s | 0.0904 | 0.06 | 0.111 | 10 |
| 1970s | 0.1155 | 0.107 | 0.159 | 10 |
| 1980s | 0.134 | 0.104 | 0.177 | 10 |
| 1990s | 0.1828 | 0.159 | 0.234 | 10 |
| 2000s | 0.1986 | 0.158 | 0.234 | 10 |
| 2010s | 0.1724 | 0.144 | 0.186 | 10 |
| 2020s | 0.1582 | 0.148 | 0.166 | 6 |
Countries ranked near Iran, Islamic Republic of
More economy & growth data for Iran, Islamic Republic of
- Africa's Development Dynamics (AfDD) Table 04 - Annual real GDP 1.48 Percent per annum (2029)
- Africa's Development Dynamics (AfDD) Table 02 - Annual real GDP 2 Percent per annum (2029)
- Manufacturing, value added (constant LCU), per capita 215.22 million constant LCU per person (2024)
- Industry (including construction), value added (current US$), annual -16.13 % change on previous year (2025)
- Industry (including construction), value added (current US$), per 0.3964 current US$ per US$ of GDP (2025)
- Industry (including construction), value added (current US$), per 1,556 current US$ per person (2025)
- Industry (including construction), value added (current LCU), annual 37.53 % change on previous year (2025)
- Industry (including construction), value added (current LCU), per 294,374 current LCU per US$ of GDP (2025)
- Industry (including construction), value added (current LCU), per 1.16 billion current LCU per person (2025)
- Industry (including construction), value added (constant 2015 US$) -4.78 % change on previous year (2025)
Frequently asked questions
- What is tax revenue vs. electoral democracy index in Iran, Islamic Republic of?
- Tax revenue vs. electoral democracy index in Iran, Islamic Republic of was 0.159 in 2025, according to V-Dem (2026) – processed by Our World in Data.
- What is the highest tax revenue vs. electoral democracy index recorded in Iran, Islamic Republic of?
- The highest recorded value was 0.234 in 1999.
- What is the lowest tax revenue vs. electoral democracy index recorded in Iran, Islamic Republic of?
- The lowest recorded value was 0.029 in 1900.
- How does Iran, Islamic Republic of rank for tax revenue vs. electoral democracy index?
- Iran, Islamic Republic of ranks 152nd out of 176 countries with data for 2025.
- Is tax revenue vs. electoral democracy index rising or falling in Iran, Islamic Republic of?
- Over the last ten years it is down 14.5%. The long-run trend across the full record is rising.
- Where does this Iran, Islamic Republic of data come from?
- The figures come from V-Dem (2026) – processed by Our World in Data, published as part of Tax revenue vs. Electoral Democracy Index. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 126 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Central estimate of the extent to which political leaders are elected under comprehensive suffrage in free and fair elections, and freedoms of association and expression are guaranteed.