See The Official Cost of a Nigerian Passport

The official cost of a 32 page Nigerian passport is N15,000 and N20,000 for a 64 page passport. This varies from one location to the another owing to the bottlenecks and loopholes of the civil service being exploited by unscrupulous people.

Knowledge they say is power; applicants are urged to confront officials of the Nigerian Immigration Service with valid price information to prevent being exploited in international passport applications.

Meanwhile a cynical Nigerian has this to say about the price of international passoport; "You can never get your international passport at those prices except you want a photocopied version. Pay 18K and collect your passport after Jesus Christ returns for the second time. So, you can use it to enter heaven"