The 5-4 decision, in South Dakota v. Wayfair Inc., was a victory for brick-and-mortar businesses that have long complained they are put at a disadvantage by having to charge sales taxes while many online competitors do not. And it was also a victory for states that have said that they are missing out on tens of billions of dollars in annual revenue.
How they voted:
For most large online retailers (including Amazon — the country’s largest), the decision will have little impact, since they’ve been voluntarily paying state sales taxes for years. Instead, the burden will be on earlier-stage companies that don’t have the same sort of scale and which will be facing more operational costs as a result.