The asylum backlog is one of the most politically contested numbers in UK immigration statistics, and one of the most consequential for the individuals it represents. In 2023, the number of people awaiting an initial asylum decision in the UK exceeded 175,000 — the highest figure ever recorded. Home Office data published in 2025 shows the backlog has reduced, but approximately 150,000 cases remain unresolved at initial decision stage.
How the Backlog Built Up
The asylum backlog is not a new phenomenon. The Home Office’s asylum processing capacity fell significantly between 2010 and 2018, as staffing was reduced and caseworker training was cut. Applications — which responded to global displacement from Syria, Afghanistan, Eritrea, and other conflict-affected countries — continued to grow. By 2019, the mismatch between intake and processing capacity had created a structural backlog.
The COVID-19 pandemic effectively suspended in-person asylum interviews for over a year, causing the backlog to accelerate sharply. By the time interviews resumed at scale, the gap between applications and decisions had grown to a scale that required significant additional resource to address. The Home Office recruited several thousand additional caseworkers between 2022 and 2024 and committed to processing 20,000 cases per month at peak. This commitment was met intermittently; data shows processing rates varied significantly month-to-month.
Life in the Backlog
Asylum seekers whose cases are awaiting a decision are subject to restrictions on work and access to public funds. They are housed in Home Office-provided accommodation — either dispersal accommodation placed with local authorities or, controversially, in hotels and large-scale sites. They receive £49.18 per week in subsistence support (the Section 95 allowance, as of 2025) and cannot legally work in most circumstances for the first 12 months of their asylum claim.
Research published by the Refugee Council in 2024 found that asylum seekers who had been waiting more than two years for an initial decision reported significantly higher rates of depression, anxiety, and social isolation than those whose cases had been resolved — regardless of outcome. The prolonged period of uncertainty, combined with restrictions on work and limited community integration support, creates documented deterioration in mental health and wellbeing.
Where Cases Stand
Of the approximately 150,000 cases in the backlog, the Home Office’s published data shows a breakdown by nationality: Afghan nationals account for approximately 12% of waiting cases; Iranians for 9%; Eritreans for 8%; and a range of nationalities for the remainder. The nationalities with the highest grant rates historically — Syrians, Afghans, Eritreans — make up a significant proportion of the backlog, meaning a substantial proportion of waiting cases are likely to be granted protection when processed.
The Home Office processes cases in priority order, with some categories — unaccompanied asylum-seeking children, cases involving safeguarding concerns, and cases involving individuals in detention — receiving prioritisation. The remainder are processed broadly in order of claim date, with adjustments for case complexity.
The Cost
The Home Office’s accommodation and support costs for asylum seekers are published quarterly. In 2024/25, the total cost of asylum support — accommodation, Section 95 payments, and related services — was approximately £4.2 billion, a figure that has attracted significant political attention. This figure includes both dispersal accommodation and hotel accommodation; the hotel programme has been specifically criticised for combining high cost with unsuitable conditions for long-term accommodation.
The government has committed to ending use of hotels for asylum accommodation and moving entirely to dispersal accommodation and alternative sites. Progress against this commitment has been uneven; hotels continue to house a significant number of asylum seekers as of 2025, reflecting the limited availability of dispersal accommodation in some local authority areas.