Northern Ireland Universal Credit Information Booklet, dated Sept 2016 from the Department of Communities explaining that:
Universal Credit is a new payment for working age people, aged 18 to 64, who are on a low income or out of work which will be introduced in Northern Ireland on a phased geographical basis from September 2017. Universal Credit will help make sure individuals are better off in work than on benefits and give them the help they need to prepare for work, start work or earn more money. It will include support for the cost of housing, children and childcare, as well as financial support for dis-abled people, carers and people who are too ill to work.
Also, the Citizen’s advice website: www.citizensadvice.org.uk has a helpful summary of what is required in applying for Universal Tax Credits.