I am writing one paper regarding taxing financial services under VAT in developing countries. I would be very grateful if anyone has any paper about it(or book that can be downloaded for free). Thanks.
there is this but for EU and Australia - https://www.sbs.ox.ac.uk/sites/default/files/Business_Taxation/Docs/Publications/Working_Papers/Series_08/WP0818.pdf
Not specifically on financial services but we recently produced a topic guide for tax reform in developing countries: http://www.gsdrc.org/topic-guides/tax-reform/ Hope it helps.
I would like to recommend you a study that assesses the effects of imposing VAT on the services provided by the Bulgarian banking sector: https://www.researchgate.net/publication/335961831_Assessing_the_Effects_of_Imposing_VAT_on_the_Services_Provided_by_the_Banking_Sector_-_The_Case_of_Bulgaria (https://www.ceeol.com/search/article-detail?id=793543)