Judgment of the Court (Eighth Chamber) of 24 October 2019.#BU v État belge.#Request for a preliminary ruling from the Tribunal de première instance de Liège.#Reference for a preliminary ruling — Free movement of workers — Equal treatment — Income tax — National legislation — Tax exemption for disability allowances — Allowances received in another Member State — Not included — Difference in treatment.#Case C-35/19.