theodp writes "Over at the Center on Budget and Policy Priorities, Michael Mazerov carefully picks apart Amazon's arguments against collecting sales taxes, arguing that they simply do not withstand scrutiny. While Amazon officials say collecting sales tax in every state would be excessively burdensome, Mazerov notes the e-tailer already collects sales tax in virtually every state for numerous other companies that sell on its website. Mazerov also finds it disingenuous for Amazon to argue that it should not have to help support public services in states in which it has no physical presence when the company fails to support public services in most of the states in which it does have a physical presence. Finally, Mazerov isn't buying Amazon's argument that its opposition to collecting sales tax is not driven by a desire to gain a price advantage over competitors, which he finds at odds with the company's own actions and SEC filings. By claiming sales-tax immunity, says Mazerov, Amazon has enjoyed an unfair 5%-10% price advantage over local retailers, while also depriving states and localities of hundreds of millions of dollars of legally due revenue each year."