State of Louisiana has tax amounts owed and can't provide proof!


My client has been placed in a collection agency and had his driver’s license taken by the state of Louisiana. They have him owing outrageous amounts of money but can’t tell me what amount of income was reported for him in order for them to get the amounts that they say he owes. The debt is for the years 2004-2007. I have the wage and income transcripts for 2007-current, but the IRS says they don’t go back further than 10 years. That’s where the issue comes in. How can the state tell someone that they owe a particular amount of money but can’t provide how they came up with the figure? What can be done about this?