Contact the Home Office if you think someone is living or working in the UK illegally, or is employing someone who isn’t allowed to work in the UK.
Start now on the Home Office website
Before you start
You don’t have to give your name and address.
Any information will be treated as confidential.
Other ways to report a crime
You can call the following organisations to report a crime anonymously.
Immigration Enforcement hotline
0300 123 7000
0800 595 000
The Anti-Terrorist hotline
0800 789 321
In an emergency, dial 999 and ask for the police.