The regulators are concerned that this might before deciding whether this constitutes illegal state aid to the fruity cargo cult.
The European Commission, which has been investigating the Apple deal for more than two years, said Irish authorities had not responded fully to an earlier query.
Commission spokesman Ricardo Cardoso said: “Ireland did not reply in full to the Commission’s last request for information, which is why the Commission has sent a reminder to Ireland to request the missing data. Furthermore, the Commission has requested clarifications to follow up on some of the replies sent by Ireland,” he said.
The Irish finance department insisted that it had provided a detailed response, saying an EU ruling was not imminent.
“There is simply no question that the Irish authorities sought to give the company in question any kind of special tax deal,” a finance department spokesman said.
In 2014 the EU competition watchdog barked that Ireland was avoiding international tax rules by letting Apple shelter profits worth tens of billions of dollars from revenue collectors in return for maintaining jobs.
Apple’s vice-president of its European operations, Cathy Kearney, told a European Parliament hearing that the company had paid every cent of its taxes in Ireland.