Sales Taxes: Electronic Commerce Growth Presents Challenges; Revenue Losses are Uncertain
The General Accounting Office (GAO) report forecasts revenue losses for state and local governments ranging between one and eight percent by as soon as 2003. Internet sales will account for an increasing share of remote sales and may account for as much as 60 percent of the lost revenues in the GAOs most dire scenario of the report.
Link
http://www.gao.gov/new.items/g600165.pdf