Relocating to the UK under the Skilled Worker route is an exciting step, but delays can happen. Whether due to personal, administrative, or external factors, it is important to understand how UK immigration rules apply if your planned work start date changes.
This guide explains when a Skilled Worker can delay their start date, the key rules involved, and what both the worker and sponsor must do to remain compliant.
Where your official start date comes from
Your employment start date is listed on your Certificate of Sponsorship (CoS), which is issued by your UK employer (sponsor). This document is essential for your visa application, whether you are applying from outside the UK or switching status inside the UK.
Your sponsor selects the start date when assigning the CoS. It is important to agree on a realistic date that allows enough time for:
- Preparing your visa application
- Processing times in your country
- Travel and relocation arrangements
Careful planning at this stage can help avoid complications later.
The three-month limitation on start dates
There is a strict timing rule when it comes to Skilled Worker applications:
- You can only apply for your visa within three months of your intended job start date
- Your sponsor cannot assign a CoS with a start date more than three months in the future
This means your timeline must be well coordinated between you and your employer.
Understanding the 28-day rule
Once your visa is granted, you must begin working within 28 days of the latest of the following:
- The start date on your CoS
- The βvalid fromβ date on your visa vignette
- The date you entered the UK (if applicable under specific concessions)
- The date you received your visa decision
If your delay is less than 28 days, generally no further action is required.
However, delays beyond this period trigger additional responsibilities for your sponsor.
How changes to start dates are reported
Your employer must report any change to your start date to the Home Office. The process depends on your application stage:
- Before applying for a visa:
Your sponsor can update the CoS using a sponsor note, explaining the new date and reasons - After applying but before a decision:
The sponsor must report the change through the Sponsor Management System (SMS)
Accurate and timely reporting is essential to avoid compliance issues.
What happens if you cannot start within 28 days
If you are unable to start work within the 28-day window, your sponsor has two options:
- Continue sponsoring you and report the delay with valid reasons
- Withdraw sponsorship
This decision must be reported to the Home Office within 10 working days after the 28-day period ends.
Acceptable reasons for delaying your start date
The Home Office may accept a delay if there is a genuine and compelling reason. Common examples include:
- Travel disruption due to conflict, natural disasters, or pandemics
- Completing a notice period with a current employer
- Delays in obtaining exit visas or travel documents
- Illness, bereavement, or serious personal circumstances
Each case is assessed individually, so providing detailed and clear evidence is crucial.
Risks if no valid reason is provided
If the Home Office is not satisfied with the explanation for your delay, they may cancel your visa. In such cases:
- Your sponsor must stop sponsoring you
- You may lose your right to remain or enter the UK
This highlights the importance of proper communication and documentation.
Options if your visa is cancelled
If your permission is cancelled, you may still have legal options:
- Administrative review: If you believe a casework error was made
- Judicial review: If the decision was unlawful or unfair
Alternatively, your employer may issue a new CoS, allowing you to submit a fresh visa application.
How LawSentis can help
At LawSentis, we understand how stressful visa delays and compliance issues can be for both workers and employers. Our UK immigration specialists provide clear, practical guidance tailored to your situation.
We can assist with:
- Skilled Worker visa applications and extensions
- Sponsor compliance and reporting duties
- Responding to delays and Home Office concerns
- Challenging refusals or cancellations
Whether you are an individual applicant or a sponsoring employer, we ensure your case is handled professionally and in line with the latest UK immigration rules.
Contact LawSentis today for expert advice and reliable support with your Skilled Worker journey.