The number marks a 20.6 percent growth from the previous campaign (3.6 billion euros) and therefore becomes the best in the competition's history.
Crucially, it has not been bloated by a new TV deal given the figures come from the second of a three-year domestic cycle on audio-visual rights, which will come up for renewal in the 2019-20 season.
The current figure of audio-visual turnover surpassed the 1.5 billion euro mark for the first time in this set of financial results.
Commercial revenue - up 34.1 percent with a 838m euro turnover - and revenue from player transfers - up 104.3 to 1.02 billion - were the two main contributors to the league's strong annual growth, with higher sums forecast next year.
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La Liga's professional structure means it produces an impact on Spain's national GDP equivalent to almost 1.4 percent, employing 185,000 people both directly and indirectly with a tax contribution of more than 4 billion euros per year.
(Reporting by Joseph Cassinelli; Editing by Christian Radnedge)
