The European Commission needs more time to complete its investigation into possible illegal state support involved in Dutch, Irish and Luxembourg tax deals with multinationals, the Financieele Dagblad reported on Tuesday.

The report should have been completed by July but will now take longer because of the ‘challenging and time-consuming information gathering process’, competition commissioner Margrethe Vestager told the European parliament on Tuesday.

The European parliament has set up a special commission to look at the way European countries compete to attract multinationals with advance tax rulings and other incentives.

The Dutch investigation focuses on the agreements made between the tax office and coffee company Starbucks. The other deals involve Apple in Ireland and Amazon and Fiat in Luxembourg.

‘There is no deadline, but we will get there, of course,’ Vestager is quoted as saying by the New York Times. ‘Fast is always better than slow, but it’s always best to be just.’