The State could face a €400m compensation bill over taxi deregulation.
The High Court is considering its ruling on three test cases.
Back in 2000, the taxi industry was deregulated and mor ethan 1,100 taxi drivers lodged claims that the value of their plates were wiped out overnight.
They went from costing up to €100,000 to just over €6,000.
Three drivers who paid the top price for their plates are awaiting a high court ruling on their test cases.
According to the Irish Independent, if they win it could result in the taxpayer facing a €400m compensation bill.
The figure is contained in a briefing document for the new Transport Minister Paschal Donoghue.