Tanzania grants high levels of tax exemptions relative to what it collects in revenue. This raises concerns about whether the practice is justified for a country that can barely raise enough to finance its budget. Analysis by civil society organisation Uwazi at Twaweza shows that tax exemptions have increased sharply during the second part of this decade (2006-2010) compared to what was granted in the earlier half of this decade (2001-2005). The analysis, presented in a policy brief titled, 'Tanzania’s Tax Exemptions: are they too high and making us too dependent on foreign aid?' suggests that Tanzania could make significant savings in revenues if it granted tax exemptions less liberally.