Zimmerman and his legal team believe they are entitled to the refund because Zimmerman was acquitted of second-degree murder July 13 for having shot and killed Martin, 17.
The shooting in February 2012 sparked a national discussion over racial profiling after Zimmerman, a neighborhood watch volunteer, said he acted in self-defense.
The motion, to be filed by Zimmerman's lead attorney, Mark O'Mara, would seek refunds for the hundreds of thousands of dollars the defense spent on fees for expert witnesses and court reporters for depositions, travel and other similar expenses.
The request is expected to be between $200,000 and $300,000, according to Shawn Vincent, a spokesman for Zimmerman's legal team.
Attorney fees for the defense team, including O'Mara, wouldn't be part of the motion.
The state Judicial Administrative Commission, which would be responsible for paying out the money if the request is approved, didn't immediately return a call seeking comment Monday night.
Zimmerman's request was first reported by the Orlando Sentinal, which quoted O'Mara as saying he would soon file the motion with state Circuit Judge Debra Nelson.
The Sentinel reported that Zimmerman's request would be based on a Florida law that says a defendant who's acquitted isn't liable for costs associated with his or her case. It must be approved by a judge or a clerk.
This sounds like another Florida law designed to help a perpetrator escape culpability.
O'Mara told the newspaper he expects the Judicial Administrative Commission to throw up roadblocks.
"That's where the fight is," said O'Mara, who told the paper he's been paid nothing by Zimmerman but has kept billing records. Granting Zimmerman's legal team's request that the State of Florida cover their legal fees is like paying Zimmerman for murder.
I have two questions.
1. What happened to that ridiculous, Conservative funded, legal defense fund?
2. Why don't Zimmerman's attorney's sue him for unpaid bills?
I would not be surprised if his debt mysteriously disappears by way of anonymous contribution or if the state of Florida pays his bills.