Reward Money
Just like most small claims courts in America, the award limit on Judge Judy is $5,000. The award that the winning litigant gets for each judgment is paid by the producers of the show. The producers have a fund that is especially reserved for the purpose.
The Green
Speaking of money, both the plaintiff(s) and the defendant(s) receive an appearance fee. Yup, that they do. The appearance fee amount varies between different litigants who have appeared on the show. Some have reported receiving a $500 appearance fee while others say they received $100, and others even just $250. Additionally, litigants are paid $35 a day by the series.