We would like to draw your attention to two judgements of the Supreme Administrative Court (SAC) of 4 December 2015 (file no. II FSK 2789/13 and II FSK 2544/13) concerning the issue of withholding tax on royalties for the use of software rights. In the said judgements, the Supreme Administrative Court stated that if in a given treaty for the avoidance of double taxation on income and on capital (hereinafter: DTT) the software has not been clearly included in the definition of royalties, it shall not be artificially included in that definition by recognising that in such case it is a work subject to copyright. In the issued rulings the Supreme Administrative Court emphasised that they remain consistent with the existing uniform jurisprudence of the SAC.