The project evaluated the labour market impact of the Working Families’ Tax Credit. The research examined a number of important outcomes using a variety of econometric methods. The project set out to tell us whether take-up of WFTC was different from its predecessor, Family Credit, whether WFTC affected recipients’ wage growth, and what the impact of WFTC and contemporaneous tax and benefit reforms was on the employment rates and average hours worked of parents in the UK.