The Islanders lead the NHL in cap overages for next season ($3.5 million), all of which are bonuses for Matthew Schaefer.

From The Hockey News article by Stefen Rosner: "The New York Islanders super rookie Matthew Schaefer earned the maximum bonuses possible for an Entry Level player - $3,500,000.  He hit 4 “A” bonuses for Goals, Assists, Points per game, and Time on Ice, earning $1 million, and by finishing in the top 10 among NHL Defensemen in goals, he earned his $2.5 million “B” bonus.  Since the Islanders used LTIR and finished over the cap, this entire $3.5 million bonus is an overage.  This large overage isn’t quite as high as the overages incurred by Boston ($4.5 million in 23-24) and Edmonton ($3.55 million in 24-25) in recent years." https://thehockeynews.com/nhl/new-york-islanders/latest-news/new-york-islanders-lead-nhl-in-salary-cap-overages-heading-into-offseason