Government departments are demanding thousands of dollars for access to their briefings to new ministers.
This is a reversal of policy, with most departments providing briefings free under Labor.
After the 2010 election 17 departments published their incoming government briefs - their initial advice to their new political masters.
More than a month after the Abbott government was sworn in, none of its briefs has been released.
Treasury and the Attorney-General's Department, both of which released their 2010 briefs, have refused requests, while the industry and employment departments, which also published their 2010 briefs, have ruled that requests are an unreasonable.
Others have imposed charges, which must be agreed to before requests are processed.
Labor senator Joe Ludwig, who has lodged freedom of information requests for the incoming government briefs of most departments, said ministers should release their briefings, if necessary with redactions for exempt material such as national security information.
He said there was no reason departments should not release briefs ''unless they've got something to hide''.
Senator Ludwig said taxpayers had a right to the information.
''This is a government wedded to secrecy,'' he said.