A senior British official is scheduled to hold a meeting with the head of government in Dublin for the first time since taking office.
Martin has been identified as the inaugural international leader to visit Number 10 North, according to statements released by the administration.
The two men are expected to explore ways to deepen cooperation between London and Dublin across trade, security and engagement with European Union structures.
Reform of Stormont institutions remains a key topic for discussion alongside progress on legislation intended to address the legacy of the conflict era.
The Good Friday Agreement established that Northern Ireland stays within the United Kingdom unless a majority votes otherwise in a referendum.
That political framework was signed in April 1998 and ratified by voters in both jurisdictions after decades of violence known as the Troubles.
While the deal outlines the principle for changing status, it does not specify how officials should determine if public support exists for unification.
The secretary of state retains the authority to call a border poll at any point, provided no such vote has occurred within the preceding seven years.
Debate continues regarding whether the referendum should be triggered by general principles or specific proposals about governance in a united Ireland.
No further details on the judgment criteria have been disclosed in the current agreement.
The statement confirmed that legacy issues and the original political settlement are among the matters to be addressed during the encounter.
It is understood that the agreement created a power-sharing government representing both nationalist and unionist communities.
The upcoming dialogue aims to strengthen ties between the two nations while navigating complex constitutional questions.
No definitive outcome regarding the future of the border or Stormont has been announced at this stage.