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Job Description

CMS is looking for a summer intern to strengthen its tax law team in Brussels.

Profile:

  • You are completing a LLM at a Belgian university with the intention of following up with or, are currently completing, a specialized master in tax law
  • You are fluent in French or Dutch and have a strong command of English
  • You are passionate about (direct and indirect) taxes in the broadest sense with a specific interest in international tax matters (e.g. cross border transactions, structuring, transfer pricing) or in contentious tax (administrative or judiciary) matters
  • You display team spirit and are eager to learn
  • You have strong legal, analytical and communication skills 
  • You have a creative mind and are business-oriented and like to take initiatives

Main responsibilities:

  • Assist the tax team in advising Belgian and international clients on direct and indirect tax matters
  • Support the preparation and follow‑up of advance tax rulings and tax litigation files
  • Contribute to advice on international tax issues, including transfer pricing, value chain optimization, beneficial ownership and substance requirements, and global restructurings
  • Assist in tax advisory work for companies at various stages of their lifecycle, including listed companies and scale‑ups, particularly in the technology, life sciences and real estate sectors
  • Support the team in advising high-net-worth individuals on tax structuring, investments and estate planning
  • Conduct legal and tax research and assist in drafting memos, opinions and presentations
  • Take part in the knowledge-sharing activities of the tax team, including academic publications, lectures and seminars

What we offer:

  • Attractive salary and reimbursement of transportation costs
  • Dynamic team of 3 partners, 2 senior associates and 7 associates
  • Hands-on summer internship within an ambitious and internationally oriented tax practice in Brussels
  • Opportunities to work on real client matters, involving both Belgian and cross‑border tax issues
  • Exposure to a broad range of tax topics, including corporate tax, transfer pricing, VAT and international tax planning
  • Close mentorship and guidance from experienced lawyers in a collaborative and supportive team
  • A learning-focused environment encouraging continuous development and active participation
  • Inclusive workplace reflecting our values 
  • Opportunity to gain valuable insight into the day-to-day practice of a leading business law firm, strengthening your future career prospects
  • Stimulating professional experience working with innovative and fast‑growing clients across key economic sectors

About CMS:

CMS is a founding member of the Legal Diversity and Inclusion Alliance (https://legaldiversityalliance.be/). Selection for recruitment is irrespective of gender, race or ethnicity, age, religion, sex, marital status, sexual orientation, gender identity or disability.

CMS Belgium has been granted a silver medal by Ecovadis, the world's most trusted business sustainability rating, recognizing our commitment to sustainability and business ethics.

Read more about working for CMS here.

Application deadline: 06 Jul 2026

  Apply now
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