CoS Masterclass: In-Country Switching & Renewal Mechanics
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Taking place on 9th June 2026, this CPD-accredited Borderless Academy session is your practical guide to navigating Certificates of Sponsorship with confidence. Cut through the complexity of defined vs undefined CoS, understand how the Home Office assesses annual allocations, and learn what evidence makes or breaks a request. Whether you're looking to avoid costly errors or sharpen your CoS strategy, this session gives you the tools to get it right.
Key Learnings Include:
- The difference between defined and undefined CoS — and when each applies
- How annual CoS allocations are assessed by the Home Office
- What evidence strengthens (or weakens) a CoS request
- Common errors that lead to refusals or reduced allocations
Why Borderless

Trusted expert
A dedicated team of in house immigration experts always on hand.
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Reduce risk
Proactive, real time, end to end compliance to keep your business continuously protected.
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Save time
Streamline and automate repetitive, error prone and time consuming tasks.
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Lower costs
Reduce costs and efforts using an immigration platform.
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