Britain is approaching a demographic tipping point, with official projections indicating that deaths will outnumber births every year from 2026 onward. The shift, driven by falling fertility rates and an ageing population, mirrors trends across much of the developed world, from Japan and Italy to South Korea and Uruguay.
According to the Office for National Statistics (ONS), the UK's population is still expected to grow, but more slowly than previously forecast, peaking at around 72.5 million in 2054 before gradually declining. Earlier projections had suggested growth would continue until 2096. Professor Sarah Harper, director of the Oxford Institute of Population Ageing, noted that in the European Union in 2024, 21 out of 27 countries recorded more deaths than births.
The UK's fertility rate has fallen to 1.44 children per woman, well below the 2.1 needed for population replacement. Professor Melanie Channon of the University of Bath highlighted that recent declines have been especially marked among under-30s, indicating some postponement, but even accounting for later parenthood, fertility is still dropping.
These changes are already affecting sectors serving children. Falling school enrolments are forcing some schools to close, while businesses such as soft play centres and childminders are struggling. Dr Bernice Kuang of the University of Southampton warned that working parents, disproportionately mothers, may have to reduce hours or leave the workforce, with implications for the economy and gender equality.
At the same time, longer lifespans are contributing to a gradual “greying” of the population. Demographer Dr Paul Morland noted that ageing populations tend to become more risk-averse, with investment flowing into safer assets rather than innovation. A smaller, older workforce may also be less entrepreneurial, while pressures on public finances mount as fewer workers support rising spending on pensions, health and social care.
These trends are not confined to wealthy nations. Fertility is falling in many middle- and lower-income countries, including parts of Latin America, Jamaica, Thailand, and states in India such as Tamil Nadu. Adaptation, experts say, will be key to managing the social and economic consequences of a world where, increasingly, the elderly outnumber the young.
