(Telecompaper) US states can now collect tax from online purchases, following a ruling from the US Supreme Court, the Wall Street Journal reported. Before this, the law stated that sales tax could only by collected from sellers with a physical presence within the state's borders. It will be up to the states themselves to determine how they want to collect taxes. he ruling means people will now have to pay taxes when purchasing goods online. It will also directly affect sellers hocking their goods on Amazon.