18 teams, each plays the others twice - home and away - for a total of 34 games each, over 34 game weeks.

Scoring points:

3 points for a win, 1 point for a draw, 0 points for a loss.

Table order:

1. points won; 2. points in head-to-head matches; 3. goal difference in hth matches; 4. away goals in hth matches; 5. total goal difference; 6. games won; 7. total goals scored; 8. play-off.

Qualification for UEFA competitions:

1 place: UEFA Champions League Group stage

2 place: UEFA Champions League Qualifiers

3-4 place: UEFA Europa League Qualifiers

5 place: possible UEFA Europa League Qualifiers (depends on Taça de Portugal outcome)

Relegation from the league:

17-18 place: relegated to Segunda Liga

Promotion to the league:

2 teams from Segunda Liga