The European Court of Justice ordered Apple to pay $14.3 billion (€13 billion) in back taxes on Tuesday, siding with the European Commission’s stance that tax breaks offered to the iPhone maker by Ireland—where Apple’s EU business is headquartered—as illegal. The ECJ said its ruling was the “final judgment in the matter” and described Ireland’s tax breaks to Apple as “unlawful aid” that the country is “required to recover.” Tuesday’s ruling reverses a lower court decision from...