The Universal Dependencies Project1\n(Nivre, [9]; Nivre et al., [10]) is an\nongoing effort towards creating a set of harmonised dependency treebanks\nthat are annotated and structured according to universal guidelines. This paper reports on the addition of morphological features to the Irish Universal\nDependencies Treebank (IUDT). Our feature set subscribes to the feature inventory of the UD Project and has been mapped from Irish morpho-syntactic\ntags – the output of a Finite State Morphological Analyser for Irish (Uí Dhonnchadha and van Genabith [16]). Irish, a Celtic language, has some relatively unusual morphological features that require language-specific labels\nnot covered by the universal feature set. In this paper, we summarise the\nIrish-specific features that we have added to this set by explaining the linguistic properties that they each describe. We also report on the first parsing\nexperiments using the IUDT by assessing the effect that the inclusion of morphological features has on parsing accuracy.