Tim brings over 10 years of international tax expertise spanning Big Four advisory, multinational corporate tax, and high-growth startups. He started his career at Ernst & Young LLP in Amsterdam, where he developed deep expertise in US International Corporate Taxation and earned a certification from the Dutch Association of Tax Advisors (NOB).
After EY, Tim joined a listed Dutch multinational and relocated to San Francisco, where he was responsible for all US tax affairs — giving him firsthand experience with cross-border complexities that American expats navigate every year.
Most recently, Tim joined Gigs, a fast-growing startup, where he has built expertise in stock option taxation across multiple jurisdictions. That experience — combined with his advisory background — is what powers Agentax's approach to equity compensation and expat tax planning.
