This is from The Economist:
Government revenues average about 17% of GDP in sub-Saharan Africa, according to the IMF. Nigeria has more than 300 times as many people as Luxembourg, but collects less tax. If Ethiopia shared out its tax revenues equally, each citizen would get around $80 a year. The government of the Democratic Republic of Congo is so penurious that its annual health spending per person could not buy a copy of this newspaper.
… Since the 1980s governments have followed an IMF-inspired recipe: slashing trade taxes, reducing top rates on personal and corporate income, and embracing value-added tax. Data from the OECD for 26 African countries show that over half of their tax revenues come from taxes on goods and services. Only a quarter comes from personal income tax and social-security contributions (about the same as in Latin America, but much less than in the rich world). From 2008 to 2017 the ratio of tax receipts to GDP rose by 1.5 percentage points, but in many countries this was offset by falls in non-tax revenues, such as fines, rents and royalties from resource extraction.
Nigeria, Africa’s biggest economy, collects less than 10% of GDP in taxes.
Of course taxation shouldn’t be an end in itself. It must be accompanied with effective provision of public goods and services. Overall, weak state capacity is the most significant barrier to both political and economic development on the Continent.