The Minister for Foreign Affairs Simon Coveney has said a Brexit deal is "likely" but it will not be easy and added that the talks had entered a "a very serious zone of negotiation".
Mr Coveney said he was "under no illusion of the challenges" facing UK and EU negotiators in the next 10 days to two weeks trying to come to agreement, which he said was the "realistic" timeline now "to complete this".
"We're likely to get a deal but it won't be easy," Mr Coveney told an Irish Farmers Journal webinar.
Minister Coveney said the potential cost of political failure in the negotiations, will in his view mean, a deal will be done at the conclusion of the current negotiations.
"The cost of failure politically is very expensive for all sides, that is why we are likely to get a deal. But, it won't be easy."
He said a "no-trade deal Brexit" is what the EU is working towards.
Mr Coveney said "the time is up" and there would be no further extension to the negotiations, so he said people need to get ready for change in January.
Brexit talks are currently in a "very serious zone of negotiation" @simoncoveney tells @farmersjournal webinar He says, "The cost of failure, politically, is very expensive for all sides, that is why we are likely to get a deal. But, it won't be easy" @rtenews— Fran McNulty (@franmcnulty) October 27, 2020
He said it was a "new reality, which we wish wasn't happening, but it is".
"Can we get a deal? Yes we can", he said. He said a deal was, "doable but difficult".
Talks with the European Union on a post-Brexit trade deal will take place in Brussels from Thursday.
The UK side led by Lord Frost and the EU's team under Michel Barnier have been meeting in London since the process restarted last week.
In a sign that enough progress is being made to at least allow talks to continue, the teams will move to the Belgian capital to continue their discussions.
European Commission spokesman Dan Ferrie told reporters: "I can confirm that negotiations are ongoing in London right now, they will run until tomorrow and then they will take place here in Brussels, as of Thursday."
He would not be drawn on the status of the negotiations but said both sides are "engaging intensively" to reach a deal.
On Monday, Downing Street warned "time is very short" to bridge the "significant" gaps between the UK and EU.
The current transition arrangements expire at the end of the year and a deal will need to be reached within weeks in order for it to be ratified by then.
The main obstacles to a deal have been rows over fishing rights, the so-called "level playing field" rules to ensure fair competition and governance arrangements for any agreement.
Additional reporting Fran McNulty