NI leaders meeting Scottish, Welsh counterparts
The first and deputy first minister will join their Welsh and Scottish counterparts in London later for a meeting of the Joint Ministerial Committee.
Social Development Minister Alex Attwood is also attending the meeting.
Welfare reform and the economy will be on the agenda.
Afterwards, the Stormont ministers will meet Treasury Minister David Gaulke to discuss corporation tax.
The Joint Ministerial Committee is a consultative, rather than executive body and its agreements are not binding.