Basic Information
- Business Line: Tax & Legal
- City: Basel
- Experience Level: Experienced
- Working Time Percentage: 80% - 100%
- Date Published: 13-Aug-2026
- Req #: 22008
Job Description
Location: Basel
Work Pattern Percentage: 80-100%
Advance your career where Global Mobility drives strategic impact. In Global Employer Services, we support internationally mobile employees and executives as they work across borders. Our work ensures that individuals sent on assignments abroad, relocating to Switzerland, or working across multiple countries remain fully compliant with tax and social security regulations—both locally and internationally.
As a Senior Tax Consultant, you will focus on Swiss Individual Tax, collaborating within a high-impact team to deliver comprehensive, tailored solutions that address the complex needs of our global clients. You will be entrusted with significant ownership and responsibility, leading client engagements, mentoring junior colleagues, and contributing to the development of innovative tax strategies. Your expertise will be instrumental in shaping client success and driving the growth of our practice.
Your Responsibilities
- Take ownership from day one, participating in client-facing activities in the field of Swiss tax.
- Lead a client engagement team, overseeing tax compliance delivery, managing engagement finances, and providing regular outcome and risk reports to ensure efficient execution.
- Integrate, mentor, and develop junior team members.
- Manage Swiss and international tax compliance projects, including reviewing Swiss tax declarations and analyzing complex international tax and social security positions.
- Provide tailored advice to clients, supported by thorough research and up-to-date knowledge of Swiss and international tax laws.
- Continually develop specific knowledge in Swiss national and international tax.
- Apply your technical knowledge to challenging cases and assist in delivering presentations to clients and colleagues.
- Lead tax consulting briefings with clients on intricate cross-border assignments, offering clear and practical advice on Swiss tax and social security implications.
- Build and maintain client relationships as the primary point of contact, coordinating with international teams on multi-jurisdictional matters.
What You Bring
- Strong technical knowledge of Swiss national tax laws and international tax principles, including social security regulations relating to cross-border mobility.
- Curiosity and a proactive mindset, with a willingness to take ownership and drive projects independently.
- Excellent teamwork and communication skills—both written and verbal—capable of explaining complex tax matters clearly to clients and colleagues.
- Great analytical and problem-solving skills, with a keen attention to detail.
- Proficiency in MS Office applications and familiarity with tax software and digital tools.
- Ability to work effectively in a team-oriented, multicultural, and fast-paced environment.
Your Profile
- Bachelor's or master's degree in law, business, economics, finance, or a related field.
- 3-5 years' experience in individual taxation (German: Natürliche Personen) and social security law, acquired in a trust/fiduciary practice, tax authority, social security administration, or consulting firm.
- Preferred (non-mandatory) experience in global mobility, expatriate, or international tax advisory, including cross-border work for multinational clients.
- Commitment to continuous learning and professional development.
- Fluency in German and English.
- Proficiency in MS Office.
Your Team
Join a dynamic and enthusiastic team at our Basel office. We enjoy analyzing numbers and value spending quality time together through social events. Teamwork and cross-disciplinary collaboration across all business lines are at the heart of what we do.
Careers at Deloitte: Choose Your Impact
At Deloitte, your ideas create impact and spark meaningful change for our clients, people, and society. Your unique expertise, background, and perspective help us navigate the most complex challenges, brightening the futures of those we serve. With close to 3,000 employees across six locations in Switzerland, we offer meaningful and challenging work in a place where you can truly be yourself.
We are dedicated to corporate responsibility, sustainability, and diversity, ensuring that your work contributes to a better future. You will benefit from flexible and hybrid working conditions, along with well-being and parental programs.
Join us and become part of a global network of like-minded people dedicated to making a difference. To learn more about opportunities at Deloitte, Apply online using the form below.
Application Information
We look forward to hearing from you! Please note that only applications matching the job profile will be considered.
Deloitte Consulting AG and Deloitte AG are affiliates of Deloitte NSE LLP, a member firm of Deloitte Touche Tohmatsu Limited (DTTL).