Certificates of Sponsorship (COS)

A Certificate of Sponsorship (CoS, the digital record you assign to a worker before they apply for their visa) is where most sponsorship problems begin. This session covers your obligations as a sponsor, what a complete and correct application looks like, and the details that most often trigger a rejection: a salary that doesn't match, the wrong SOC code, a start date that slips.
Join us at 11AM on 23 July, We'll walk through the assignment process step by step, the duties that come with every CoS you issue, and the checks that catch a problem before it reaches the Home Office. Get those right and the worker starts on time, with no gap in care to cover and no costly re-application to manage.
What you'll leave with:
- What your obligations are when you assign a CoS, and where sponsors most often fall short.
- What a perfect application looks like field by field, so there's nothing for the Home Office to query.
- The common triggers of rejection, and how to check for each one before you assign.
See your entire compliance picture in one place
Book a tour of our platform, from CoS requests to the audit trail, with time for your questions.
What you’ll see on a tour
01
Your sponsored workers, sites and deadlines on one dashboard
02
A CoS request from first draft to adviser review to your approval
03
How reportable changes and audit records are kept
04
Pricing for the size of your team
900+
Businesses trust Borderless
4.9
Average rating on Google
IAA
Regulated immigration advisers, ref. F202309005





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