Prof. Dr. oec. publ. Julia von Ah

Prof. Dr. oec. publ. Julia von Ah is a partner and certified tax expert at von Ah & Partner AG, a tax consultancy based in Zurich, Switzerland. Under her leadership the firm has been recognised as Tax Law Firm of the Year in Switzerland at the Corporate INTL Global Awards 2025, an award that reflects both the depth of the firm's tax expertise and the academic authority that Julia von Ah brings to its practice. The recognition affirms the firm's position among Switzerland's respected specialist tax advisers.

von Ah & Partner AG advises individuals and businesses on tax matters from its office in Zurich, combining technical precision with a practical, client-focused outlook. The firm describes its approach as bringing together innovation and inspiration while remaining firmly grounded in practical reality, and it emphasises tailored advice that takes account of each client's full circumstances rather than applying standardised solutions. This philosophy suits the complexity of Swiss tax law, where federal, cantonal and international considerations frequently intersect and where careful, individualised planning can make a significant difference to outcomes.

Julia von Ah's areas of expertise span the core of Swiss corporate and personal taxation. She advises on corporate tax law, including the direct taxes imposed by the Confederation and the cantons, as well as withholding tax and stamp duties. Her work also encompasses international and intercantonal tax law, corporate restructuring procedures, and the taxation of foundations and trusts. This range allows the firm to support clients on matters that reach from day-to-day compliance to sophisticated planning and reorganisation, and to address both the domestic and the cross-border dimensions of Swiss taxation with equal command.

Alongside her practice, Julia von Ah holds a prominent position in Swiss tax academia and professional life. She has been a professor at Kalaidos Law School since 2010 and has served as director of the Swiss Institute of Taxation there since 2012, and she is associated with the Institute for Swiss and International Tax Law as vice president. Through these roles she contributes to teaching, research and professional debate in Swiss taxation, and she is a regular figure at tax conferences and seminars. This academic standing feeds directly into the quality of advice the firm provides, keeping it at the forefront of developments in Swiss and international tax law. Swiss taxation is shaped by the interplay of federal and cantonal rules and by a web of international agreements, so advisers who are active in both academic research and practice are well placed to help clients anticipate change rather than merely react to it.

Her expertise has been recognised beyond the firm as well, with her repeated inclusion among the leading tax experts and trustees identified by the Swiss business press over several consecutive years. For clients, this combination of scholarly authority and practical advisory experience offers reassurance that their tax affairs are in the hands of a genuine specialist. For businesses undergoing restructuring, and for foundations and trusts with cross-border dimensions, that depth of specialist knowledge can be decisive. The naming of von Ah & Partner AG as Tax Law Firm of the Year in Switzerland at the Corporate INTL Global Awards 2025 recognises that blend of academic distinction and hands-on expertise, and the standing that Prof. Dr. Julia von Ah and her firm have established in the Swiss tax market.