On 5 July 2017, Liga Portuguesa de Futebol Profissional announced nine stipulations for the Liga NOS fixture draw that took place on 7 July. Among previous conditions, two new were added, the two teams who will play the Supertaça could not play against Sporting CP (Portuguese team in the play-off round of Champions League) on the first two matchdays.[20]
Source: Liga Portugal Rules for classification: 1) Points; 2) Head-to-head points; 3) Head-to-head goal difference; 4) Head-to-head away goals scored; 5) Goal difference; 6) Matches won; 7) Goals scored; 8) Play-off. (Note: only criteria 1, 5, 6 and 7 are applied to establish the classification during the competition.) (C) Champions Notes:
^ abcDesportivo das Aves qualified for the Europa league group stage by winning the 2017–18 Taça de Portugal. However, since they failed to obtain a license for European competitions, the spot awarded to the cup winners (Europa League group stage) was passed to the third-placed team, the spot awarded to the third-placed team (Europa League third qualifying round) was passed to the fourth-placed team, and the spot awarded to the fourth-placed team was passed to the fifth-placed team (Europa league second qualifying round).