Aiko Koster

Aiko Koster, as a Partner at RSM Netherlands, plays a pivotal role in shaping the firm’s strategic direction and delivering comprehensive tax advisory services to a diverse client portfolio. Based in the Utrecht office, Aiko leverages her extensive expertise in international tax, corporate restructuring, and indirect taxation to guide both domestic and multinational companies through complex fiscal landscapes. Her current focus includes advising web-based and IT companies on navigating the intricacies of cross-border taxation, transfer pricing, and compliance with evolving VAT regulations, such as the new B2B VAT rules effective from January 1, 2010.

Aiko is actively involved in key projects that support clients in international business restructuring, ensuring optimal tax efficiency while maintaining compliance with European and US tax laws. Her deep understanding of the taxation of US corporations operating in the Netherlands and Europe enables her to develop tailored strategies that address specific challenges faced by expatriates and multinational entities. Additionally, her expertise in financial structuring and tax accounting allows her to assist clients in designing sustainable growth strategies and managing risk effectively.

Her role at RSM also involves leading due diligence processes, advising on transfer pricing policies, and providing tax advisory services that align with clients’ long-term business objectives. Aiko’s proactive approach and industry-specific knowledge make her a trusted advisor for companies seeking to optimize their tax positions in a rapidly changing regulatory environment, particularly within the digital economy and international markets.