Reviewing the states in the canonical orbital picture, we find that all states go predominantly into the LUMO, with only the T 5 and T 6 states also containing significant contributions into higher virtual orbitals (LUMO+1 and LUMO+3). Conversely, the HOMO only plays a minor role for the low energy states and of all the states considered here, only S 1 and S 4 and none of the triplet states have notable HOMO-LUMO character (62 % for S 1 , 85 % for S 4 ). This highlights that a simple visualisation of the HOMO and LUMO can by no means explain the photophysics of complicated TADF systems as studied here.