Book printers and distributors in other countries have to conform to their countries laws and taxes applicable for the publishing industry. For example, if you sell a book on Amazon.com, the sale is confirmed after Amazon accounts for any returns and taxes levied on the sale of both printed books and eBooks. Unlike India, book sales is taxable in other countries. Which is why Amazon and other international eCommerce sites for printed books and eBooks send us accurate, consolidated reports after 90 days.