Accredited official statistics

About this release

Published 22 May 2025

Back to ‘Immigration system statistics, year ending March 2025’ content page.

The Home Office ‘Immigration system statistics quarterly release’ series gives an overview of work on immigration control, entry clearance, asylum and enforcement within the Home Office, including the work of UK Border Force, Immigration Enforcement and UK Visas and Immigration (UKVI). It helps inform users such as the government, Parliament, the media and the wider public, and supports the development and monitoring of policy.

This release includes the latest statistics for the year ending March 2025, on a range of topics including:

• How many people come to the UK each year?

• Why do people come to the UK? Work

• Why do people come to the UK? Study

• Why do people come to the UK? Family

• How many people come to the UK via safe and legal (humanitarian) routes?

• How many people come to the UK irregularly?

• How many people claim asylum in the UK?

• How many people are granted asylum in the UK?

• How many cases are in the UK asylum system?

• How many people are granted settlement or citizenship?

• How many grants of settlement are made via the EU Settlement Scheme?

• How many people are detained under immigration powers in the UK?

• How many people are returned from the UK?

The ‘Immigration system statistics’ release is an Accredited Official Statistics output produced to the highest professional standards and free from political interference. It has been produced by statisticians in Migration statistics within the Home Office in accordance with the Home Office’s ‘Statement of compliance with the code of practice for statistics’. The Head of Profession for Statistics reports to the National Statistician with respect to all professional statistical matters and oversees all Home Office Accredited Official Statistics products with respect to the Code of Practice, being responsible for their timing, content and methodology.

The Home Office ‘Immigration system statistics’ series forms part of a larger cross-government Statistical Service ‘Migration statistics transformation plan’ to meet changing user needs, and which will put administrative data at the core of evidence on migration. Improvements to this release, which are part of this programme of work, can be found in ‘Developments in migration statistics’.

1. Accredited Official Statistics

These data, formerly known as ‘National Statistics’, are ‘Accredited Official Statistics’. National Statistics is the legal term set out in the Statistics and Registration Service Act 2007 for ‘Accredited Official Statistics’ that have been judged by the Office for Statistics Regulation (OSR), to comply with the Code of Practice for Statistics (“the Code”). This means these statistics meet the standards of trustworthiness, quality and value as set out in ‘the Code’. Further information about accredited official statistics can be found on the OSR’s website.

Our statistical practice is regulated by the OSR which sets the standards of trustworthiness, quality and value in the Code of Practice for Statistics that all producers of official statistics should adhere to. You are welcome to contact us directly via migrationstatsenquiries@homeoffice.gov.uk with any comments about how we meet these standards. Alternatively, you can contact OSR by emailing regulation@statistics.gov.uk or via the OSR website.

The statistics last underwent a full assessment against the Code of Practice in February 2012. The continued designation of these statistics as National Statistics was confirmed in September 2018 following a compliance check by the Office for Statistics Regulation (OSR). The OSR report highlighted a number of strengths and made suggestions for improvements.

2. Changes to the release

2.1 Data system transition

The Home Office is transitioning its immigration data to a new system (‘Atlas’). Data is transitioning in stages and certain datasets may be unavailable temporarily during this period. Updates to these datasets will be included in future publications as soon as they are available. In addition, published numbers may be revised in future quarters following this period of change.

2.2 Accessibility

Spreadsheet formatting has been updated following a review of the data tables released as part of the immigration system statistics. This update brings the table accessibility and usability in line with best practice, outlined by the Analysis function.

2.3 Ukraine Permission Extension applications

For the first time, the immigration system statistics contains data on grants and refusals for Ukrainian Permission Extension applications as part of the existing in-country extensions data. The scheme opened in February and allows Ukrainian nationals, and their family members, who are already in the UK with permission under one of the existing Ukraine schemes, to apply to extend their stay for up to a further 18 months. Further information can be found in the ‘How many people come to the UK via safe and legal (humanitarian) routes?’ section.

2.4 Asylum and Safe and legal (humanitarian) routes data

The structure of the asylum and resettlement tables has been changed as of the May 2025 release to reflect the structure of the release (that is, separating asylum from safe and legal routes). This change includes separating Asy_D02 into an asylum related table (this will remain in Asy_D02) and a resettlement table (this will be a new table, Res_D02).

In addition, a number of new summary tables have been introduced, to meet user needs:

• in the asylum summary tables, the new Asy_00a, Asy_00b and Asy_04 provide a simple overview of a range of areas of asylum

• Irr_02f and Irr_02g have moved from the irregular migration summary tables and are now Asy_02d and Asy_02e in the asylum summary tables

• Asy_11 has moved from the asylum summary tables and is now Hum_01 in the new safe & legal (humanitarian) routes summary tables

• within the new safe & legal (humanitarian) routes summary tables, the new Res_02 and Fam_02 tables provide a simple overview of community sponsorship schemes and family reunion visa grants respectively

The names and ordering of the asylum summary tables have changed to align with their accompanying detailed table. Please note that no data has been discontinued.

2.5 Other changes to data tables

Irr_02e has moved from the irregular migration summary tables and is now Ret_06 in the returns summary tables.

3. Migration Statistics User Forum

The Migration Statistics User Forum has been established for discussion of international migration statistics, allowing users to discuss their need for and use of the data, and for producers to consult on presentation and provide information on proposed changes or improvements to the statistics. The forum is a user-led group with over 200 members and affiliated to the wider Statistics User Forum established by the Royal Statistical Society. The forum meets annually at its conference, usually held in autumn. Home Office Analysis and Insight uses this forum to communicate with migration statistics users, including providing information on new data and publications.

Details of the next annual conference, any other events and information relating to migration publications will be sent to members of the forum via its distribution list. The distribution list is available to join through the MIGRATION-STATS JISCmail list.

4. Other Home Office research and statistics

‘Migration analysis at the Home Office’

This page provides a hub for collections and the latest updates relating to published statistics, research and evaluation on migration.

‘Developments in migration statistics’

In recent years Home Office statisticians have introduced a wide range of changes to the UK migration statistics. These include developments in the department’s range of official statistics, research and analysis using Home Office and other data sources.

‘Monthly entry clearance visa applications’

Statistics on visa applications for people coming to the UK for work and study.

‘Statistics relating to passenger arrivals since the COVID-19 outbreak’

Statistical reports showing the impact of COVID-19 on the immigration system.

‘Migrant journey’

Formerly known as ‘Statistics on changes in migrants’ visas and leave status’, this release explores migrants’ journeys through the UK’s immigration system.

‘Migration transparency data’

Performance data related to areas in the Home Office business plan, and data on borders and immigration activity, which has been regularly requested from the Home Office by the Home Affairs Select Committee.

‘Analysis of migrants use of the Graduate route’

This report looks at who entered the Graduate route and what they did after. It includes insights on their earnings by linking Home Office records to HMRC data.

‘Ukraine Family Scheme and Ukraine Sponsorship Scheme Statistics’

Provides the latest statistics on the Ukraine Family Scheme and the Ukraine Sponsorship Scheme. The Ukraine Family Scheme allows applicants to join family members or extend their stay in the UK. The Ukraine Sponsorship Scheme allows Ukrainian nationals and their family members to come to the UK if they have a named sponsor under the Homes for Ukraine Scheme.

5. Other migration outputs

‘Migration Advisory Committee’ (MAC) is an independent, non-statutory, non-time limited, non-departmental public body that advises the government on migration issues. It publishes a range of reports on migration.

‘International migration’ (ONS).

Tool to locate the datasets for all ONS international migration outputs and for updates to international migration outputs.

‘Statistics at DWP’ (DWP).

Research and statistics on migration to support Home Office policy development and operational activity.

6. Further information and feedback

If you have any comments, or suggestions for the development of this report, please provide feedback by emailing MigrationStatsEnquiries@homeoffice.gov.uk. Please include the words ‘PUBLICATION FEEDBACK’ in the subject of your email.

Press enquiries should be made to:

Home Office Press Office
Peel Building
2 Marsham Street
London
SW1P 4DF
Tel: 0300 123 3535

The Home Office Responsible Statistician is Jack Cooper

The Home Office Migration Statistics mission statement is:

We produce timely, accurate and objective statistics on immigration to support effective delivery of Home Office objectives and to inform government, Parliament and the public.