Corrupt Mayor Bill de Blasio donor Jona Rechnitz is a victim of his own success.

The convicted fraudster — who has whined to a judge he should be allowed free ahead of his sentencing so he can party with the likes of Kim Kardashian in order to drum up money to pay back the correction union he bilked for $19 million — has more dough than he’s letting on, and should immediately pay them back, the union says in a new court filing.

Union lawyers asked a federal judge in Manhattan to make Rechnitz liable for $14.25 million that’s yet to be repaid — pointing to a California civil suit in which a businessman accused Rechnitz of bilking him out of millions of dollars in loans by offering a $400,000 Bugatti sports car and millions of dollars in diamonds in collateral.

Rechnitz was convicted in the union scheme last year, along with former Correction Officers’ Benevolent Association chief Norman Seabrook and hedge-funder Murray Huberfeld, and sentenced to 10 months in prison. He’s appealing the decision and free on bail.

The union has recouped $4.75 million from their stolen money, which was paid by Huberfeld, the filing states.

But they fear Huberfeld and Seabrook will not be able to pay the remaining $14.25 million, so they’re demanding it from Rechnitz.

“We believe that based on his prospective business ventures he will have the ability to pay back more money,” Union President Elias Husamudeen said in a statement.

“Our members’ finances should not be held up any longer,” he added.

A lawyer for Rechnitz did not immediately respond to requests for comment.