How to Register as Self-Employed for Security Work in the UK (2025 Guide)
More security professionals than ever are working self-employed in the UK. Whether you want more flexibility or prefer to work as a subcontractor, you need to register properly to stay legal and avoid fines.
Here’s exactly how to do it.
✅ Step 1: Make Sure You Have an SIA Licence
Regardless of employment status, you must hold a valid SIA Licence for security roles like:
✔ Door Supervisor
✔ Security Guard
✔ CCTV Operator
✅ Step 2: Register as Self-Employed with HMRC
The process is simple:
✔ Visit the HMRC website
✔ Register as a sole trader (this is the standard self-employed setup)
✔ You’ll receive a Unique Taxpayer Reference (UTR) number
✔ You’re legally required to complete a Self Assessment tax return each year
✅ Step 3: Understand Your Tax Responsibilities
As a self-employed security worker, you must:
✔ Keep records of your income and expenses
✔ Pay tax and National Insurance on your profits
✔ Submit a Self Assessment tax return annually
Need help? Freelance Cover offers simple resources for self-employed security workers.
✅ Step 4: Consider Insurance
Many security companies and venues require self-employed security guards to have:
✔ Public Liability Insurance
✔ (Optional) Professional Indemnity or Personal Accident cover
You can compare options at Freelance Cover.
Final Thoughts
Registering as self-employed is straightforward — but you must stay on top of your tax, licence requirements, and insurance to work legally and professionally.
Ready to Get Started?
Self-Employed Security Resources