Phil Hogan has submitted a second, more detailed report to the European Commission on his trip to Ireland, including his attendance at a controversial Oireachtas Golf Society dinner in Galway.
It was requested by European Commission President Ursula von der Leyen to get more context on his movements.
The commission also wants EU Trade Commissioner Hogan to make the timeline of his trip publicly available.
In the wake of the Golfgate controversy, he was asked to provide more information on his movements in Ireland last week and the restrictions that were in place at the time.
Commission President von der Leyen on Monday asked for 'further clarifications' from Mr Hogan, after he delivered an initial report over the weekend.
European Commission Deputy Chief Spokesperson Dana Spinant said earlier that Mr Hogan was being encouraged to be open with the public about his movements in Ireland.
She said: "President von der Leyen continues being in contact with Commissioner Hogan about this matter.
"The President had requested additional clarifications and details, because she wishes to be informed in detail about the facts - but she also wishes to understand the circumstances. She wishes simply to have the complete picture.
"The President expects a detailed report from Commissioner Hogan today by 2pm in the afternoon. The President also encourages Commissioner Hogan to publish the timeline of his moves in Ireland during the period he stayed there."
Ms Spinant noted it was "absolutely premature" to discuss whether there would be "sanctions or anything like that".
It comes after the Irish Independent reported that Mr Hogan visited Kildare during lockdown for a second time before returning to Brussels.
Mr Hogan has previously said he briefly stopped in the county to pick up some documents and belongings while travelling to the Oireachtas Golf Society dinner.
Additional reporting: Jack Quann