The Transport Minister has hinted the Go Card deposit could be raised from $5 to $10 in a bid to stop people abusing the system on trips to the airport.

An investigation into Go Card abuse has been launched after Translink figures showed people were going into negative balance on trips to the airport and not repaying it within six months.

Translink figures show travelers cheat on trips to the airport. Credit:Michelle Smith

Transport Minister Scott Emerson estimated 1000 people per month were misusing the Go Card on the train network and tried to blame Labor's decision to set the Go Card deposit at $5 a month.

‘‘I don’t think there is any system around the world that’s perfect, some systems and they do things differently, say in terms of that deposit,’’ he told ABC 612 Brisbane.