Online sellers may soon have to collect and pay sales tax. The state Senate voted unanimously to approve a measure that requires internet sellers outside the state to collect sales tax if they complete a certain amount of transactions in Nevada. Supporters say the measure makes brick-and-mortar shops competitive again. Current law-which is often ignored–requires buyers who don’t pay sales tax to a seller to pay it directly to the state. The bill now heads to the governor’s desk for his signature.