Our team
The complexity of our subject areas demands a high level of expertise and commitment. In-depth specialist knowledge and many years of practical experience are therefore essential. In addition to detailed technical understanding, successful collaboration with our clients requires above all a relationship built on trust — and that, in turn, calls for strong interpersonal skills.
Our advisory services meet these requirements in every respect.
Dr. Tanja Wiebe, LL.M.
Tanja Wiebe is the founder of FinTax policy advice. She provides cross-sector consulting to board members, managing directors, and executive leadership of manufacturing and digital companies from Germany and abroad, as well as to industry associations, in matters of tax, financial, economic, and legal policy.
Since starting her own firm, she has advised numerous corporations, family-owned enterprises, medium-sized businesses, associations, law firms, and public affairs agencies, drawing on her deep specialization.
Her expertise is further complemented by her focus on real estate policy, a field in which she has gathered extensive experience and has been active as an advisor for many years.
Prior to founding FinTax policy advice in 2011, Tanja Wiebe served as Managing Director of the German Property Federation (Zentraler Immobilien Ausschuss e. V. – ZIA), where she was responsible for the departments of taxation, accounting, European affairs, and legal policy. Before joining ZIA, she worked for several years in the tax department of the Federation of German Industries (Bundesverband der Deutschen Industrie e. V. – BDI), where she focused on corporate taxation and tax accounting law.
Earlier in her career, she worked for several years in investment banking and corporate finance at Dresdner Kleinwort Wasserstein in Frankfurt, gaining substantial experience in M&A transactions, particularly with companies in the telecommunications and IT sectors.
Tanja Wiebe studied law in Passau, Freiburg (Br.), and Washington D.C., and completed her legal clerkship in Berlin and Sydney. She earned her doctorate in tax law through studies in Chemnitz and New York.
She is a member of the Economic Council of the CDU, the German Economic Policy Club, and the Public Affairs Network.
Dr. Sonja Halverscheid, StB
Dr. Sonja Halverscheid has been a Manager at FinTax policy advice since 2022, where she supports consulting activities in the field of tax and financial policy.
Previously, she spent many years as Deputy Head of the Tax Department at the Institute of Public Auditors in Germany (Institut der Wirtschaftsprüfer in Deutschland e. V. – IDW). She began her professional career there in 2011 as a subject specialist. In 2012, she successfully passed the tax advisor examination.
Her work at the IDW focused on national and international (tax) policy and the representation of the auditing profession’s interests. This also included supporting public relations efforts related to tax law and policy. She managed expert committees and co-authored statements, position papers, publications, practical guides, and books. Additionally, she responded to technical inquiries from IDW members concerning tax and commercial law.
In 2014 and 2015, she completed two multi-week parliamentary internships in the office of a Member of the German Bundestag, gaining in-depth insight into political processes and legislative procedures at both the federal and state levels.
Sonja Halverscheid earned her doctorate in Business Taxation in 2010 in Münster, where she also studied Business Administration. During her doctoral studies, she served as a lecturer in corporate tax law in the “Executive MBA Accounting & Controlling” program at the Center for Business Management.
Jasmin Scheel
Jasmin Scheel serves as Executive Officer at FinTax policy advice. Since 2013, she has supported the team with a focus on the company’s organizational and structural operations.
Her wide-ranging responsibilities include public relations, cooperation with institutions and authorities, administrative duties, bookkeeping, report preparation, and daily documentation.
Prior to joining FinTax, she worked for nearly a decade in a modern and diverse child and youth welfare organization, where she supported and developed various residential settings for different age groups. For four years, she led a youth residential group as group supervisor and acted as the main point of contact for the organization’s management and external institutions.
Jasmin Scheel completed her training as a state-certified educator in 2004 in the district of Recklinghausen.
