Employers Preventing illegal working Employers have a duty to be kept informed of the latest changes to immigration law. However, it can be hard to keep up with these changes. You do not want to employ someone who turns out to be an illegal worker. You can be fined up to £20,000 per worker if you are found guilty of employing illegal workers. In addition, if you have a sponsor licence under the points-based system (as an employer and/or an education provider), a failure to keep records on the migrants you are sponsoring could affect your suitability to be a sponsor. Our preventing illegal working service can help you prevent this from happening in your company. Contact us to find out how we can help.