Social reform has also been the subject of wide-ranging differences between members of the executive (particularly Sinn Féin) and the UK government. The Ministry of Finance was determined that Northern Ireland would adopt social reform and fined the executive for failing to do so. Within the executive, the parties were divided. While Sinn Féin had opposed the adoption of social reform, the Democratic Unionist Party had tried to do so, arguing that it was inevitable and that an omission from London would result in further fines. One of the priority objectives of the Stormont House agreement, particularly from the point of view of the British government, was to resolve the welfare dispute and to adopt reforms. The agreement was ubiquitous and included a wide range of topics. The agreement exists and is part of the paradigm established by previous peace agreements signed between 1998 and 2007. The signing of the agreement was widely supported by the majority of Northern Ireland`s political parties, but not by the Ulster Unionist Party and external governments. However, the Northern Ireland trade union movement did not give much support to the agreement, which led a series of protests and public meetings against the agreement, and the majority of public service unions affiliated with the ICTU held a one-day strike on 13 March.  The Stormont House Agreement is a political agreement between the British and Irish governments and a majority of parties that make up the northern Ireland executive. The agreement was published on December 23, 2014. The Stormont House Agreement aims to bring parties and communities together to resolve identity issues, reach agreement on social reform and make public funding more sustainable in Northern Ireland. After ten weeks of further discussions, it resulted in the restart agreement in November 2015, which aimed to ensure the full implementation of the Stormont House agreement and to deal with the effects of continued paramilitary activities.
The agreement slightly changes the structure of Northern Ireland`s institutions. The number of MPs in the Northern Ireland Assembly has been agreed to increase from six MLA per Westminster constituency to five in time for the 2021 general election (but this was effectively implemented in 2017 due to the proclamation of early elections). There are also plans to implement reforms that allow the parties to submit to membership of the Northern Ireland executive and instead become official opposition funds, as is the case in other legislative bodies in Ireland and the United Kingdom. By the 2016 election, the number of Stormont divisions will be reduced from twelve to nine. An important aspect of the agreement reached on Tuesday 17 November in Stormont was welfare reform in Northern Ireland Some of these sources of disagreement were raised during the talks negotiated by Richard Haass and Professor Meghan O`Sullivan.