Germany

International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Germany

mertgen.jpg

 

Bettina Mertgen

Deloitte

Franklinstraße 50

60486 Frankfurt

Germany

Tel: +49 69 75695 6321

Fax: +49 69 75695 6724

Mobile: +49 151 58002558

Email: bmertgen@deloitte.de

Website: www.deloitte.com/de

Bettina Mertgen is a director at Deloitte's German indirect tax service line – customs and global trade (CGT) and partner at the associated international law firm Deloitte Legal. She is specialised in customs, excise duty, and foreign trade law and export control with more than 10 years of professional experience as an attorney at law, tax lawyer, certified tax adviser, and certified adviser for customs and excise duty. Bettina is one of the leading specialists in indirect taxation in Germany. She leads the legal unit within the CGT team and is head of the CGT group in Deloitte's Frankfurt office. She has extensive experience in advising clients with regard to opposition and administrative fines proceedings, tax litigation, customs audits and compliance reviews.

After her graduation in law from Johann-Wolfgang-Goethe University Frankfurt am Main in 2002, Bettina completed her legal clerkship in Frankfurt and New York with focus on tax law. In 2006, she gained admission to the German Bar. Before joining Deloitte in 2015, she worked for more than eight years for an international law firm in Frankfurt and Washington DC and became a specialist in her area of law. High-level advisory with respect to complex and difficult matters in this area of law became her strengths. She successfully took part in legal proceedings to the Federal Fiscal Court (Bundesfinanzhof) concerning excise duty.

Bettina co-authored the book Compliance im Außenwirtschaftsrecht covering compliance in customs and foreign trade law. It was tailored to fit the practical needs of companies and provide its decision makers with guidance on export control and customs compliance. Moreover, she publishes articles in professional journals on a regular basis covering all relevant aspects of customs, excise duty and foreign trade law. Most recently, she covered the possible consequences of Brexit (the UK leaving the EU) on indirect taxation as well as the interaction between transfer pricing and customs valuation.

Besides her work and her publications, Bettina is also a speaker at seminars on a regular basis.

deloitte-280.png


Eveline Beer

Küffner Maunz Langer Zugmaier

Kristina Bexa

Clifford Chance

Barbara Fleckenstein-Weiland

Flick Gocke Schaumburg

Claudia Hillek

KPMG

Nicole Looks

Baker & McKenzie

Karen Möhlenkamp

WTS

more across site & shared bottom lb ros

More from across our site

Brazil is trying to follow in the US’s footsteps and secure its own 'qualified side-by-side status', ITR understands
The surge in probes comes as the UK tax authority seeks to close a VAT gap of £11.4bn from last year, Pinsent Masons’ research has suggested
ITR’s survey data reveals widespread client disappointment with firms’ use of technology but our upcoming AI in Tax event offers advisers a chance to flip the script
Firms announced key tax partner hires across the US and UK, while fintech and software providers revealed board appointments and new tools for multinational tax teams
It continues a prolific spree of investment for the firm, after it launched in Indonesia, Thailand, Saudi Arabia and Japan in 2025
Booming APA statistics reflect the growing credibility of India’s TP framework and the country’s shift toward a tax certainty approach, ITR has heard
Partners at both firms have voted in favour of the tie-up, which marks ‘the largest law firm merger in history’
The latest edition of Taxing Times with ITR covers all the controversy from a dramatic period for the carve-out deal, and also dissects the big four's AI strategies
Hany Elnaggar examines how the OECD’s global minimum tax is reshaping PE concepts across the GCC, shifting the focus from formal presence to substantive economic activity
The combination between Ashurst and Perkins Coie, which will create a $2.8 bn law firm, is expected to close in Q3
Gift this article