The Fiscal Encyclopedia NDFR (Nederlandse Documentatie Fiscaal Recht) is an online tax reference work that has become a leading tax portal. NDFR offers the user not only reference possibilities but also topicality and educational depth. First and foremost, NDFR is a tax reference work; a source for advice and procedures, organized and elaborated per article using clear tab sheets. In addition NDFR offers topicality through a daily tax news section Daily News, an overview of legislative proposals and cassation and an overview of recent articles in the journals of Sdu (Newsfeed journals). NDFR also provides plenty of background information for educational purposes; all articles from the journals of Sdu and various book series of Sdu are included.