Eswatini National First Division

The top two performing clubs in the National First Division earn automatic spots in the Premier League of Eswatini the following season while the bottom two performers in the top flight are automatically relegated. The third and fourth best clubs in the First Division compete in a play-off against the third and fourth lowest performers of the Premier League to determine who will compete in the first and second tier leagues the following season. This format was expanded when the Premier League increased to sixteen teams prior to the 2025–26 season. Prior to a October 2021 rule amendment, there were no play-offs and the top and bottom two clubs were automatically promoted/relegated only. As of the 2024/2025 season, the four lowest-ranked teams in the league are automatically relegated to their Regional Super Leagues while the champion of each Super League joins the National First Division the following season. ==Sponsorship==

Until the end of 2024/2025 season, the league was sponsored by the MTN Group which also sponsored the Premier League. As of 2024, the league winners after the first round earn a prize of E50 000. That year, it was announced that the league was searching for a new sponsor, or another joint-sponsor, so that the prize money could be increased after a public outcry over the existing amount of E180 000 for the season winners. From the 2025-26 season, MulaSport sponsored the league, committing E4.5 million over the following three years. ==List of winners==