Ver 3 Jan 08
 
 

Illegal workers

Proof of eligibility to work

Under the provisions of the Immigration and Asylum Act 1996, it is a criminal offence to employ someone who is 16 or over and is not entitled to work in the UK.

Employers have a statutory defence against prosecution if, before the start of employment, they check and record one of the defined documents or document combinations that confirm the prospective employee's right to work in the UK.

You must ask all potential employees to provide you with original documents as follows:

  • One document from List 1 OR
  • Two documents in the combinations of List 2

List 1 - Documents which provide the defence if produced alone.

Any one of the documents included in List 1 will provide you with the defence if you check and copy them.

  • A passport showing that the holder is a British citizen, or has a right of abode in the United Kingdom.
  • A document showing that the holder is a national of a European Economic Area country or Switzerland.  This must be a national passport or identity card.
  • A residence permit issued by the Home Office to a national from a European Economic Area country or Switzerland.
  • A passport or other document issued by the Home Office which has an endorsement stating that the holder has a current right of residence in the United Kingdom as a family member of a national from a European Economic Area country or Switzerland who is resident in the United Kingdom.
  • A passport or other travel document endorsed to show that the holder can stay indefinitely in the United Kingdom, or has no time limit on their stay.
  • A passport or other travel document endorsed to show that the holder can stay in the United Kingdom; and that this endorsement allows the holder to do the type of work you are offering if they do not have a work permit.
  • An Application Registration Card issued by the Home Office to an asylum seeker stating that the holder is permitted to take employment.


List 2 – Documents which provide the defence if produced in combination.

List 2 covers the combinations of documents which will provide you with the defence if both steps within each combination are followed. You will not have the defence if you see one document from the first combination and one from the second combination.

First Combination

  • A document giving the person’s permanent National Insurance Number and name. This could be a P45, P60, National Insurance card, or a letter from a Government agency.

Along with checking and copying a document giving the person’s National Insurance Number, you must also check and copy one of the following documents listed in the seven points below:

  • a full birth certificate issued in the United Kingdom, which includes the names of the holder’s parents; OR
  • a birth certificate issued in the Channel Islands, the Isle of Man or Ireland; OR
  • a certificate of registration or naturalisation stating that the holder is a British citizen; OR
  • a letter issued by the Home Office to the holder which indicates that the person named in it can stay indefinitely in the United Kingdom, or has no time limit on their stay; OR
  • an Immigration Status Document issued by the Home Office to the holder with an endorsement indicating that the person named in it can stay indefinitely in the United Kingdom, or has no time limit on their stay; OR
  • a letter issued by the Home Office to the holder which indicates that the person named in it can stay in the United Kingdom, and this allows them to do the type of work you are offering; OR
  • an Immigration Status Document issued by the Home Office to the holder with an endorsement indicating that the person named in it can stay in the United Kingdom, and this allows them to do the type of work you are offering.

Second Combination

  • A work permit or other approval to take employment that has been issued by Work Permits UK.

Along with a document issued by the Work Permits UK, you must also check and copy one of the following documents listed in the two points below:

  • a passport or other travel document endorsed to show that the holder is able to stay in the United Kingdom and can take the work permit employment in question; OR
  • a letter issued by the Home Office to the holder confirming that the person named in it is able to stay in the United Kingdom and can take the work permit employment in question.

Retaining proof

The employer must take and retain photocopies of the relevant parts of the documents, or scan them electronically onto a "Write One Read Many" (WORM) disk.

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