For that indicator, The World Bank provides data for Iran from 1972 to 2009. The average value for Iran during that period was 6.55 percent with a minumum of 3.86 percent in 1993 and a maximum of 10.16 percent in 1997.
See the global rankings for that indicator or
use the country comparator to compare trends over time.
Definition: Tax revenue refers to compulsory transfers to the central government for public purposes. Certain compulsory transfers such as fines, penalties, and most social security contributions are excluded. Refunds and corrections of erroneously collected tax revenue are treated as negative revenue.