Total revenue collected by central government (which excludes revenue by LGAs) grew by 14.3 percent from TZS 13,826.8 billion in 2014/15 to TZS 15,802.0 billion in 2015/16.
Tax revenue contributed 91.9 percent of total internal revenue in 2015/16.
In the 2015/16 fiscal year: Tax revenue collected amounted to TZS.13, 246.1 billion and grew by TZS. 2,581 billion (24.0 percent) from TZS. 10,665.1 billion Reported in 2014/15.
Compared to external sources of government revenue, internal sources dominated the share for about a decade and contributed 86.2 percent in 2015/16.
The tax-to-GDP ratio increased from 12.5 percent in 2014/15 to 13.6 percent in 2015/16 exceeding the long-term average of 11.6 percent.