The Queens credit union at the heart of a federal fraud probe into ex-Trump lawyer Michael Cohen is mired in another scandal — its former CEO faces charges of using his position to land free luxury trips and a chauffeured car to ferry around his family, according to new court papers.

As Manhattan federal prosecutors investigate $20 million in loans that Cohen took out for his taxi business from Sterling National Bank and Melrose Credit Union, Melrose and ousted CEO Alan Kaufman are battling corruption charges by the government’s regulatory National Credit Union Administration.

Earlier this month, the NCUA filed a $4.5 million case against Kaufman. The move came two years after the state’s Department of Financial Services began running Melrose upon finding what it called “unsafe and unsound banking practices.” Kaufman was removed from the board and his CEO position at the same time.

About 75 percent of Melrose’s clients were taxi-medallion owners whose fortunes have fallen with competition from ride-hailing apps. Melrose reported $400 million in underwater medallion loans in 2015.

A source familiar with the industry says Cohen may have contributed to Melrose’s financial troubles by overstating the income generated from his taxi licenses or neglecting to disclose other liens on the medallions in order to get loans.

Kaufman’s sketchy stewardship also exacerbated the bank’s problems, according to the NCUA.

“Kaufman put his personal and financial interests, and those of his relatives and friends, ahead of those of Melrose and its members” by repeatedly soliciting and accepting gifts from vendors, according to the Aug. 2 filing.

Regulators say Kaufman was prohibited from accepting anything over $100 value.

Yet Kaufman accepted gratis getaways including a CBS Radio “World Trip to Paris” in 2010, a Madison Square Garden-sponsored trip to Stockholm, Sweden, to watch the New York Rangers play hockey in 2011, and a paid New York Jets trip to Chicago to attend the VIP “2015 NFL Draft 6 Experience,” the NCUA claims.

And when Kaufman had a personal cash crisis in 2010, he began living, rent-free, in a $630,000 home owned by one of the bank’s borrowers, according to regulators. By 2013, Kaufman had “personally approved” $85 million in loans to the landlord in “terms that were favorable to–and not available generally to other borrowers,” regulators say.

Kaufman also allegedly arranged a $5,600-a-month consulting gig for his retired dad and used the company’s black-car service for his family’s personal travel.

Kaufman is due to answer the charges by Aug. 22. His attorney declined to comment.

Kaufman called the charges misleading and said he will vigorously defend them. He blamed the credit union’s troubles on “regulatory failures and technology disruptions that have destroyed the taxi medallion industry.