Can Skilled Worker Visa Holders Take an Additional Job in the UK? Rules and Costly Mistakes

1. Introduction

Many Skilled Worker visa holders in the UK consider taking on a second job to supplement their income. But did you know that failing to follow the Home Office rules could lead to serious consequences—including visa cancellation and employer fines of up to £60,000?

Recent enforcement raids have caught both employees and employers off guard. If you're planning to take on additional work or hire someone already on a Skilled Worker visa, it's critical to understand what’s allowed—and what’s not.

This blog explains the UK government’s latest rules on supplementary work, common mistakes, and how to avoid them. Whether you’re an employee or an employer, knowing the law will protect your future in the UK.

For the full picture on second jobs, including when your own business counts and what happens to a second job if your sponsored job ends, see our guidance on Skilled Worker: Job Loss and Second Jobs.

2. What Is Supplementary Work?

Supplementary work refers to any additional job you take on outside your main sponsored role. This includes part-time shifts, weekend jobs, or freelance work alongside your primary job.

As a Skilled Worker visa holder, you're allowed to do up to 20 hours per week of supplementary work without updating your visa—but only under specific conditions.

3. The Core Rules of Supplementary Employment for Skilled Workers

The UK government has clear stipulations on what constitutes permissible additional work for Skilled Worker visa holders. Understanding these is paramount:

a. Maintain Your Main Job Hours: 

Your primary sponsored job remains your core commitment. Any supplementary work must not interfere with your ability to fulfil your duties and contracted hours for your main employer. This is a fundamental principle. Supplementary work is only allowed while you continue in your sponsored job. It must stop on the day that job ends.

b. Eligible Occupation Codes and Skill Levels: 

You cannot simply take any supplementary job. The additional work must fall under one of the following categories:

⧁ An eligible occupation code that is a 'higher skilled' job 

⧁ on the immigration salary list.

⧁ In the same profession and at the same professional level as your main job.

It's important to note recent changes: 

if you received your first Tier 2 or Skilled Worker visa before 22 July 2025 and have continuously held one or more Skilled Worker visas since then, you may be able to do additional work in a job listed as 'medium skilled'. For all other cases, "higher skilled" or "same profession and level" rules apply.

c. The 20-Hour Limit (and Beyond): 

You can work up to 20 hours a week in another job or for your own business, provided you are still doing your sponsored job. The work you do for your own business must pass the same occupation test, and business administration such as preparing invoices counts towards the 20 hours.

What if you want to work more than 20 hours a week in another job? 

If you intend to work more than 20 hours a week in a second job, this is no longer considered "supplementary employment" in the same way. You will need to apply to update your visa to be sponsored for both jobs. This involves:

● Obtaining a new Certificate of Sponsorship (CoS) from your second employer.

● Including a letter with your application explaining your desire to change your current permission to stay.

d. Consent from Your Primary Employer (and sometimes both!): 

While the government guidelines don't explicitly state a requirement for your primary employer's consent for all supplementary work within the 20-hour limit, it is best practice and highly recommended. Your primary employer needs to be confident that your additional work will not impact your performance or commitment to your main role. For clarity and to avoid any misunderstandings, it is always advisable to seek and obtain a consent letter from your primary employer. This demonstrates transparency and can be crucial if any questions arise. Your supplementary employer should also be aware of your visa conditions.

e. Right to Work (RTW) Checks are Non-Negotiable: 

Your supplementary job employer has a legal obligation to conduct a thorough Right to Work (RTW) check before you start working for them. This includes verifying your visa conditions and ensuring you are permitted to undertake the specific supplementary role. This is a critical step for both the employer to avoid fines and for you to ensure compliance.

f. Voluntary Work Rules: 

You are permitted to do voluntary work. This must be unpaid (except for reasonable expenses such as travel) and for a registered charity, a voluntary organisation, an associated fundraising body, or a statutory body.

4. Common Mistakes That Could Cost You

Here are common ways Skilled Worker visa holders and their employers fall into non-compliance:

■ Taking a second job that fails the occupation test, for example a medium skilled role (RQF Level 3 to 5) without transitional protection.
 

■ Working more than 20 hours a week without applying to update the visa.
 

■ Employers skipping the Right to Work check assuming the visa alone is sufficient.
 

■ Doing unpaid work not classed as volunteering under Home Office rules.
 

These mistakes can lead to visa curtailment, refusals of future applications, and employer civil penalties.

5. What If I Want to Work More Than 20 Hours?

You must apply to update your visa to be sponsored for both jobs if:

● You want to work more than 20 hours per week in your second job, or
 

● Your supplementary work doesn’t meet the eligibility criteria.
 

This process involves:

● Getting a new Certificate of Sponsorship from your second employer.
 

● Writing a letter to the Home Office requesting a change in permission to stay.
 

● Ensuring both jobs still meet all Skilled Worker visa requirements.
 

Your second employer cannot assign that certificate until you have used your first one and started your sponsored job. Our guidance on the Certificate of Sponsorship explains when a worker needs a new one.

6. Special Considerations: Legacy Visa Holders

If you were granted your first Tier 2 or Skilled Worker visa before 22 July 2025 and have held valid visas continuously since then, you may be eligible to do certain medium-skilled jobs under transitional arrangements.

7. Consequences of Non-Compliance

Getting this wrong can have serious consequences:

● Visa cancellation for the worker
 

● Hefty fines (up to £60,000 per illegal worker) for the employer
 

● Loss of sponsor licence for companies employing Skilled Workers improperly
 

● Ban from re-entering the UK or future visa refusals
 

Don’t take the risk—get expert help before making any move.

8. How Can WorkPermitCloud Help?

At WorkPermitCloud Ltd, we offer a simple and affordable solution to help you stay compliant.

Our £50 Supplementary Employment Eligibility Check covers:

✅ Complete Right-to-Work Check
✅ Personalised eligibility assessment
✅ No Objection Certificate (NOC) drafting
✅ Contract and documentation support
 

📞 Call us: +44 020 8087 2343
 📧 Email: info@workpermitcloud.co.uk
 📅 Book a free consultation: calendly.com/lutfur-workpermitcloud

Invest £50 and protect your visa or avoid thousands in employer fines.

9. Conclusion

Taking on extra work as a Skilled Worker in the UK is possible—but only if done right. Don’t rely on guesswork or outdated advice. Follow the Home Office rules strictly, ensure you have consent and documentation, and always verify job eligibility.

Whether you're a visa holder or a business, WorkPermitCloud is here to help you navigate compliance safely and affordably.

10. Glossary