Universal Credit is a United Kingdom social security payment. It is means-tested and is replacing and combining six benefits, for working-age households with a low income: income-related Employment and Support Allowance, income-based Jobseeker's Allowance, and Income Support; Child Tax Credit and Working Tax Credit; and Housing Benefit. An award of UC is made up of different elements, which become payable to the claimant if relevant criteria apply: a standard allowance for singles or couples, child elements and disabled child elements for children in the household, housing cost element, childcare costs element, as well as elements for being a carer or having an illness or disability and therefore having limited capability to work.

The Work Capability Assessment (WCA) is used by the British Government's Department for Work and Pensions (DWP) to decide whether and to what extent welfare benefit claimants are capable of doing work or work-related activities. The outcome of the assessment also determines whether claimants are entitled to "new style" Employment and Support Allowance (ESA) and potentially additional elements of Universal Credit (UC).