The Supreme Court has granted the Fire Service an appeal over a long-running legal row with the Insurance Brokers Association.
The challenge centres on the levies payable to the emergency service.
The Fire Service is mostly funded from levies added to domestic and commercial customers' premiums and all property owners who insure property against the risk of fire pay a duty.
But the Insurance Brokers Association isn't happy with the way it's calculated, saying the method used is outdated, unfair and needs reviewing.
Vero is also involved in the case, pressing for a review.
After going through the High Court and Court of Appeal, the association says the Supreme Court will hear the appeal in December.
The brokers have asked for the case to be heard before their lawyer, Ralph Simpson, retires.