Bahan Kajian Seminar Doktoral Perpajakan & Teknologi Finansial menganalisis dan memberikan alternatif pemikiran tentang Arah riset empiris di bidang perpajakan (kuantitatif dan kualitatif), Peran penelitian lanjutan perpajakan dan pengembangan penelitian metodologisnya, Taxation Regulations and Laws (PPh), Tax Reformations and Tax Design, Tax Management and Tax Audit, Tax Management and Tax Planning, International Taxation Regulations and Laws. Selain itu mahasiswa diajarkan bahan kajian tentang teknologi keuangan yang meliputi New Theory of Sustainable Finance as a part of ESG, Sustainable Finance and Financing sustainable growth, The FinTech phenomenon; Book Review of FinTech HandBook, Neobank, Research FinTech, Business Value, and Banking Research, Potential negative effects of Fintech, dan The Future of Fintech.  Selanjutnya, mahasiswa diajarkan menganalisis dan memberikan solusi kasus-kasus sederhana.