The government has agreed the measures it announces will be on the basis of a no deal Brexit.
Paschal Donohoe says the package of measures will still come to 2.8 billion euro.
But social welfare announcements will be scaled back compared to previous years and be targetted at the most vulnerable.
And personal tax cuts are also off the table.
The Irish Fiscal Advisory Council says preparing the budget based on a no-deal Brexit is appropriate.
The government says an extra 900 million euro will still be spent on capital projects next year.
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