UK Retail Underemployment Hits £3.6bn, Squeezes Margins

Companies that can break that loop – by raising prices, automating tasks, or reducing non-labour expenses – are better positioned. Those that cannot will see margins compress and may face revenue declines as consumer spending drops.

The research does not name specific companies. The mechanism applies broadly across UK-listed grocers, fast-food chains, and general retailers. Any business with a high proportion of hourly-paid, part-time staff faces this labour-cost pressure.

The £3.6bn figure is a snapshot of current conditions. The research covers the period up to mid-2026. If employment costs rise further – for instance, in the next budget – the underemployment rate could climb. For now, the data shows that labour cost, not consumer demand, is the binding constraint on retail margins.

The research shows a central challenge for investors: retail profitability now depends on how companies manage labour flexibility in a higher-cost environment. The £3.6bn in lost earnings is a measure of the pressure on both workers and the businesses that rely on them.