RTÉ News understands that draft recommendations and an executive summary of the banking inquiry report have been circulated to members.
It is understood a few hundred amendments are to be debated by members this afternoon.
Progress has been made with amendments to the draft banking report at the meeting.
More than half of the draft report has now been amended by members who must agree a final draft within the next 24 hours.
One chapter alone on banking has more than one hundred amendments to be examined.
Two of the chapters concern the bank guarantee and the property sector.
However, it is understood the question of who agrees with tonight's changes to the report will not be taken until all the chapters have been amended.
Committee member Michael McGrath said he expects the meeting will continue late tonight and possibly tomorrow.
Today is the deadline for the inquiry to sign off on its report before it is vetted by a legal expert.
The report will then be sent to interested third parties early next week.
Meanwhile, a spokesperson at the Department of Expenditure and Reform said it had not received a request from the inquiry for new legislation that would extend the final publication deadline beyond 27 January.
Earlier, the Chairman of the Oireachtas Committee of Inquiry into the Banking Crisis has said he expects a report will be agreed upon this weekend, after which it can go forward to the next stages for approval.
Speaking on RTÉ's Morning Ireland, Ciarán Lynch agreed the timescale for publication on 27 January 2016 is tight, adding that it is likely it will require work over the Christmas period,
He said there is always a risk with time but said they are working to the programme to meet the deadline.
The inquiry will deal with amendments that have been tabled by members today.
The document will then be examined chapter by chapter to be signed off, after which it will undergo a legal review.
Mr Lynch said the amendments would be dealt with by consensus.
The Labour TD said the inquiry has been "challenging and demanding", but it had still been worth it.
