The fund is worth a combined €1.8 trillion. EU leaders have been in negotiations since Friday to decide on the bloc's budget for the next seven years and what form a €750 billion pandemic recovery fund will take.
There is division over whether it should be made up of grants or loans and what conditions are attached.
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A new revised plan has replaced €50 billion in grant aid with loans, with the headline figure of 750 billion unchanged.
The ongoing talks in Brussels mean a meeting of Cabinet here today will now be delayed.
It was expected that ministers would sign off on a "greenlist" of countries it's safe to travel to at the meeting.
However, that's now set to take place later this week.