From SEAT Wiki

the Eritrean 2% Diaspora Tax's development and implementation illustrates how the revenue apparatus reflects, and enables, the inadequate governance existing in present-day Eritrea. 2013 With little production and few exports, the government and citizens rely heavily on remittances from Eritreans abroad, including a 2% income tax on expatriates collected through the nation’s consulates. Although the tax is voluntary, not paying jeopardizes rights and property in Eritrea, so compliance is fairly good. 2 Oct 2007 [1] Paying a 2% tax on nationals overseas is not a precondition for eligibility for Eritrean nationality and obtaining a passport.22 Oct 2007 many Eritreans abroad now refuse to comply with the government's enforced 2% development tax, which is a condition of access to government and embassy services. Some Eritreans who have become nationals of other count 15 May 2004 Eritrea is a rare instance of a country that has, since 1993, imposed a tax of 2% of annual income on its expatriates. Apart from the sanction of social disapproval in the diaspora, those who do not pay find it hard to buy or keep land back home, or to get their passports renewed. The impost causes much friction. 28 Sep 2002