The Council for Infrastructure and Development says most of the huge cost of fixing Auckland's transport problems can be funded by imposing a toll on motorists.
Twelve funding options have been put to the public to pay for the $10 billion to $15 billion deficit expected from new projects in the region.
Mayor Len Brown says with Government coffers under pressure, Aucklanders need to think how to get new projects under way.
In addition to tolling new and existing roads, some of the options involve funding sourced through a general rates increase, regional payroll and income taxes, a higher regional goods and services tax (GST) and visitor and airport departure taxes.
The chief executive of the Council for Infrastructure and Development says a low-level toll on the motorway system could raise at least $600 million a year.
Stephen Selwood says that could work similar to the Northern Toll Road where motorists can pre-pay an account before using the roads.
The council says the discussion document is available for submissions until 23 March.