Teaching vacancies have hit a historic nine-year low as falling pupil numbers and a weakening labour market reduce demand. What this means for the profession in 2026.
For years the narrative around teacher recruitment was one of crisis — unfilled vacancies, subject shortages, schools struggling to find qualified staff. In 2026, the headlines have shifted. Secondary teacher job adverts have fallen to their lowest level in nine years, according to data from the Teacher Vacancies Service and independent analysis by the National Foundation for Educational Research (Worth, 2026).
At first glance this sounds like good news. Fewer vacancies means fewer unfilled posts, less disruption to pupils and less pressure on school budgets. But the picture is more complicated — and more concerning — than the headline suggests.
The reduction in vacancies is being driven by two main factors, neither of which reflects a genuine improvement in the health of the teaching profession.
First, the secondary school pupil population is falling. The large cohorts born in the early 2010s — the so-called baby boom that drove significant growth in secondary school numbers through the late 2010s and early 2020s — have now largely passed through the system. Smaller cohorts are following them, reducing the total number of pupils in secondary schools and therefore reducing the number of teachers needed (ONS, 2025).
Second, a weakening general labour market means that teachers who might previously have left for other sectors are staying put. Teacher retention has improved not because teaching has become more attractive, but because alternative opportunities have become less appealing. This is a fragile improvement that will reverse when economic conditions change (NFER, 2026).
Aggregated vacancy data masks the continued severity of subject-specific shortages. Physics, mathematics, computing and modern foreign languages continue to face significant recruitment challenges regardless of overall vacancy levels. In these subjects, schools are competing for a small pool of qualified graduates who have multiple attractive career options outside education.
The government's teacher training targets for shortage subjects have been missed for six consecutive years (DfE, 2025). No amount of improvement in headline vacancy figures changes this structural problem, which will not be resolved without significant changes to the relative attractiveness of teaching in these subjects — including pay, workload and career progression.
In a tighter labour market, school leaders have less ability to address underperformance through recruitment. When vacancies are plentiful, struggling schools can refresh their workforce. When vacancies are scarce and the labour market is tight, schools must invest more heavily in developing the staff they have.
This is actually an opportunity — provided schools seize it. Investment in professional development, coaching, mentoring and leadership development becomes not just desirable but necessary when the alternative of recruiting better-qualified staff is less available.
The research is clear that high-quality professional development is the most cost-effective way to improve student outcomes. The Teacher Development Trust's analysis of effective CPD — consistent coaching, subject-specific development and time for collaborative professional learning — should be the model every school is working toward (Cordingley et al., 2015).
Teaching remains a profession under pressure. Workload, behaviour challenges, accountability burdens and pay that has fallen significantly in real terms over the past decade continue to make recruitment and retention difficult. Falling vacancy numbers should not be mistaken for a profession that has turned the corner.
The long-term health of education depends on making teaching genuinely attractive — intellectually stimulating, professionally respected, appropriately rewarded and sustainable as a career. That requires systemic change, not just demographic fortune.