A Certificate of Sponsorship (CoS) is a critical document for non-UK nationals who wish to work in the United Kingdom under a skilled worker visa. It’s issued by a UK employer who wants to hire a non-UK resident, and it confirms that the employer can sponsor the worker. The CoS includes details about the job role, salary, and other key information, ensuring that the position meets the necessary immigration requirements. To obtain a Certificate of Sponsorship, the employer must first be approved by the Home Office as a licensed sponsor. This certificate is a vital part of the visa application process, as without it, the worker cannot apply for a skilled worker visa. If you're an employer looking to hire internationally, or a prospective employee seeking to work in the UK, understanding the importance and process of obtaining a Certificate of Sponsorship is essential to ensure compliance with UK immigration laws.