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Publication
29.10.2026
Knowledge Group positions (‘Kennisgroepstandpunten’) provide important guidance on complex tax matters, but what do they mean for the professional judgement of tax advisers and the development of tax law?

Knowledge Group positions set out the Dutch Tax Administration’s view on complex tax issues arising in individual cases. They are binding on tax inspectors when applying tax law, while taxpayers may invoke them to seek equal tax treatment. But how much room remains for an independent professional assessment once a Knowledge Group has taken a position? During a recent meeting of the Young Dutch Association of Tax Advisers and Young Dutch Tax Administration at De Balie in Amsterdam, Léon Wijsman discussed this question with representatives of the Dutch Tax Administration and tax academia. These are three key takeaways from his contribution.

  • 1. Knowledge Group positions provide guidance, but are not the final word

    Knowledge Group positions play an important role in the Dutch Tax Administration’s interpretation and application of tax law. For tax advisers, however, a published position should not automatically be regarded as the definitive interpretation of the law. It remains important to assess the underlying legal question independently and critically.

  • 2. Independent professional judgement remains essential

    Once a Knowledge Group has adopted a position, tax inspectors are bound by it. This makes the role of the tax adviser particularly important. Léon argues that advisers should continue to critically assess Knowledge Group positions and consider whether the position taken is supported by the law, rather than treating the Dutch Tax Administration’s interpretation as a given.

  • 3. Judicial scrutiny supports legal development and protection

    Where there are sufficient grounds to challenge a Knowledge Group position, bringing the matter before the tax courts can be an important next step. Judicial scrutiny can provide greater clarity on the interpretation of tax law and, as Léon emphasised, contributes to both the development of the law and the legal protection of taxpayers.

Want to learn more?

Knowledge Group positions can have a significant impact on the way complex tax matters are approached in practice. Understanding their status, while continuing to critically assess their legal basis, is therefore important for taxpayers and tax advisers alike. Contact Léon Wijsman to discuss what Knowledge Group positions could mean for your tax matter.

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