Official Statistics

National Insurance numbers allocated to adult overseas nationals to September 2019

Updated 21 April 2020

The latest release of these statistics can be found in the collection of National Insurance number allocations statistics.

This summary contains statistics on National Insurance numbers (NINos) allocated to adult overseas nationals, covering the period from January 2002 to September 2019.

A National Insurance number (or NINo) is generally required by any adult overseas national looking to work or claim benefits and tax credits in the UK.

These Department for Work and Pensions (DWP) statistics show a count, by individual nationality, of the number of NINos registered to adult non-UK nationals each quarter, irrespective of the length of stay in the UK. The statistics are not a count of the number of adult non-UK nationals currently residing in the UK.

1. Main stories

752,000 NINos were registered in the year to September 2019: a 21% increase on the previous year.

Figure 1: The number of NINo registrations to September 2019

The total number of registrations peaked in 2015, after which EU registrations declined and non-EU registrations remained stable. Since September 2018 registrations have increased, non-EU more so than EU

Source: NINo statistics data tables.

The increase seen in registrations in the year ending September 2019 is partly explained by the increase of registrations to non-EU nationals. This increase is in part due to including adult dependents in the automatic registration for a National Insurance number when their visa application is approved. This process was introduced in September 2018.

In the year to September 2019, 61% of all NINo registrations were allocated to European Union (EU) nationals: down by 8 percentage points from the previous year.

Figure 2: Percentage of NINo registrations by EU subgroups to year ending September 2019

The proportion of Non-EU registrations increased from 2017 to 2019, mainly at the expense of registrations to EU8 nationals. The proportions of registrations to EU15 and EU2 nationals have remained relatively stable

Source: NINo statistics data tables.

2. What you need to know

This summary contains statistics on NINos allocated to adult overseas nationals, covering the period from January 2002 to September 2019.

These statistics are designated as Official Statistics.

What can you use these figures for?

The statistics provide:

  • a 100% count of foreign nationals registered for a NINo in a quarter
  • the nationality of foreign nationals at the time of registering
  • where the foreign nationals registered

What you cannot use these figures for

The statistics cannot be used as a count of:

  • quarterly or annual migration to the UK
  • the number of foreign nationals who have started work or are currently in work
  • the number of foreign nationals who are currently in the UK.

The statistics show the number of people registered for a NINo in order to work or to claim benefits and tax credits and are one of a number of supplementary measures produced by government of in-migration to the UK.

Although quarterly registration figures are provided in the accompanying data tables, care should be taken when interpreting quarterly changes as they might reflect changes in operational activity. Annual year-on-year changes are more reliable to reflect longer-term trends.

The statistics are published as part of the scheduled timetable for the release of cross-Government migration statistics. The Migration Statistics Quarterly Report (MSQR) is a summary of the quarterly releases of official international migration statistics by the Office for National Statistics (ONS).

Read the background information note for further information, including detail on uses and limitations of the series.

Comparisons with other sources of migration

NINo statistics are not a direct measure of long term migration and therefore are not directly comparable with ONS long-term estimates of immigration.

On 7 March 2016, the ONS published an information note explaining the reasons why long-term international immigration figures from the International Passenger Survey (IPS) could differ from the number of NINo registrations.

This was followed by an analytical paper presenting analysis that has been undertaken across government to help understand why the 2 series are showing different trends, with focus on EU migration.

EU groupings used within migration statistics

The following EU groupings are used in the statistics:

  • EU15 (original EU members)
  • EU8 (joined the EU in 2004)
  • EU2 (Romania & Bulgaria)
  • European Union Other

For reporting purposes, countries have been grouped into ‘World Areas’ based primarily on geographical location,

3. Where in the world are people registering from?

Figure 3: Number of NINo registrations by EU subgroups to September 2019

EU15 registrations have been dropping since June 2015, with a slight increase since September 2018. EU8 registrations have dropped rapidly since June 2015. EU2 registrations have been dropping since December 2016, with a slight increase since March 2018

Source: NINo statistics data tables.

In the year to September 2019, there were 457,000 NINo registrations by EU nationals (up 7% from previous year).

Registrations across all EU sub groups and change from previous year:

  • EU15 – up 20% to 195,000
  • EU8 – down 10% to 80,000
  • EU2 – up 4% to 177,000

In the year to September 2019, registrations to EU8 nationals accounted for 17% of all EU registrations. This represents a drop of 57 percentage points from the year to December 2006, when it was the highest at 74%.

Note: There was a sharp rise in NINo registrations in 2014 following the removal of restrictions on work for EU2 citizens. Some of this is reflecting individuals who were residing in the UK prior 2014 and would only have been able to register for a NINo after that date. See arrival to registration analysis on EU2 nationals for more about this.

Outside of the EU, South Asia has the most registrations.

Figure 4: Number of NINo registrations in the year ending 2018 and 2019 ending in September by World Area

Area Registrations: Year to Sep 2018 Registrations: Year to Sep 2019
EU15 163,000 195,000
EU2 170,000 177,000
EU8 89,000 80,000
South Asia 59,000 102,000
Sub-Saharan Africa 26,000 38,000
Other Europe 17,000 28,000
East Asia 17,000 23,000
Middle East and Central Asia 16,000 22,000
North America 14,000 20,000
South East Asia 14,000 18,000
Oceania 14,000 16,000
Central and South America 10,000 15,000
North Africa 7,000 10,000

In the year to September 2019 registrations to non-EU national increased by 50%, to 293,000. 37% of this increase was contributed by the increase of registrations to Indian nationals.

Figure 5: Top 5 EU and Non-EU individual nationalities, registrations in year to September 2019 and the % change from previous year.

EU Country Registrations Percentage Change Non-EU Country Registrations Percentage Change
Romania 139,000 +1% India 72,000 +99%
Italy 52,000 +18% Pakistan 18,000 +37%
Poland 43,000 -10% United States 14,000 +45%
Bulgaria 38,000 +13% China 14,000 +25%
Spain 37,000 +18% Nigeria 13,000 +48%

Nationalities with the largest increases in registrations in the year to September 2019 are:

  • India (see Figure 5)
  • Italy (see Figure 5)
  • Spain (see Figure 5)
  • Portugal up 27% to 24,000
  • Pakistan (see Figure 5)

4. Where in the UK are people registering?

Almost half of all registrations are in London or the South East.

Figure 6: EU and non-EU NINo registrations: Year to September 2019, by region

Region Non-EU EU
London 110,000 170,000
South East 34,000 57,000
East of England 20,000 39,000
West Midlands 22,000 36,000
North West 22,000 31,000
Scotland 19,000 26,000
East Midlands 14,000 29,000
South West 12,000 25,000
Yorkshire and the Humber 14,000 21,000
Wales 5,000 8,000
North East 6,000 5,000
Northern Ireland 2,000 8,000

Figure 7.1: EU NINo registrations year to September 2019, by local authority at time of registration

Most registrations are shown to be in London, and other large urban areas

Source: NINo statistics data tables.

Figure 7.2: Non-EU NINo registrations year to September 2019, by local authority at time of registration

Most registrations are shown to be in London, and other large urban areas

Source: NINo statistics data tables.

Note: The darker areas of the maps show local authorities with higher levels of registrations.

You can also view an interactive version of the local authority map showing National Insurance number registrations from different world areas by GB local authority.

Figure 8: Top 10 local authorities by number of NINo registrations at September 2019

Local Authorities Registrations
Newham 20,000
Tower Hamlets 19,000
Birmingham 17,000
Brent 17,000
Westminster 13,000
Ealing 13,000
Glasgow City 13,000
Manchester 12,000
City of Edinburgh 12,000
Haringey 12,000

5. About these statistics

Status: Official Statistics

National Insurance number (NINo) allocations to adult overseas nationals are Official Statistics. Official Statistics are produced in accordance with the Statistics and Registration Service Act 2007 and the Code of Practice for Statistics. They meet high standards of:

  • trustworthiness
  • quality
  • public value

World Areas

For reporting purposes, countries have been grouped into ‘world areas’ based primarily on geographical location. Countries are grouped according to current world area status for the entire back series.

World Area Sub Group
European Union (EU) European Union EU15 (original EU members), European Union EU8 (joined EU in 2004), European Union EU2 (Romania & Bulgaria), European Union Other
Non-European Union (Other Europe) Other Europe
Asia Middle East and Central Asia, East Asia, South Asia, South East Asia
Rest of the World Sub-Saharan Africa, North Africa, North America, Central and South America, Oceania

A detailed nationality breakdown for each world area is available in the supplementary data tables accompanying this release.

Where to find out more

Read previous releases of these statistics.

The background information note includes detail on data sources, uses and limitations of the series.

Full statistics on National Insurance number allocations to adult overseas nationals entering the UK are available from Stat-Xplore.

View an interactive map showing NINo registrations from different world areas by GB local authority.

View an interactive NINo dashboard showing National Insurance number registrations by nationality for each GB region.

Read about the NINo application process.

The Migration Statistics Quarterly Report provides a comprehensive summary of the various sources of migration statistics including headline NINo statistics.

Enquires and feedback

DWP would like to hear your views on our statistical publications. If you use any of our statistics publications, we would be interested in hearing what you use them for and how well they meet your requirements: Send your comments by email to: stats-consultation@dwp.gov.uk.

Press enquiries should be directed to the DWP Press Office, telephone: 0203 267 5144.

Other enquiries about these statistics should be directed by email to: yolanda.ruizrodriguez@dwp.gov.uk or ali.spahiu@dwp.gov.uk.