Security Guards and Door Supervisors — Self-Employed Tax Guide

Security Work and Self-Employment

The security industry in the UK is enormous — from door supervisors at nightclubs and bars to security officers at corporate buildings, event stewards, retail security, close protection operatives, and CCTV monitoring specialists. And a significant chunk of this workforce is self-employed.

If you're working as a self-employed security guard or door supervisor, you need to understand your tax obligations. Get it right, and you'll keep more of your earnings. Get it wrong, and HMRC will eventually come knocking — and they won't be as polite as you are on the door.

Let's go through everything you need to know.

The Employment Status Question

Before anything else, we need to address the biggest issue in the security industry: are you actually self-employed?

This matters enormously because HMRC has been cracking down on bogus self-employment in the security sector for years. Some agencies and security companies incorrectly classify workers as self-employed to avoid paying employer's National Insurance, holiday pay, and pension contributions.

Signs you might actually be employed (even if told you're self-employed):

• You work regular shifts at the same venue(s)
• The company tells you what to wear, how to behave, and what procedures to follow
• You can't send someone else in your place
• You're required to accept shifts when offered
• You use the company's equipment exclusively

Signs you're genuinely self-employed:

• You work for multiple clients or agencies
• You can accept or decline work freely
• You provide your own equipment (radio, torch, PPE)
• You set your own rates
• You could send a suitably qualified substitute
• You invoice for your services

If you're genuinely self-employed, brilliant — read on. If you suspect you might actually be employed, it's worth checking. Our IR35 guide covers the employment status tests in detail, and HMRC's CEST tool can give you a preliminary indication.

Being wrongly classified as self-employed isn't just a tax issue — it also means you're missing out on employment rights like holiday pay, sick pay, and auto-enrolment pension contributions.

Registering as Self-Employed

If you are genuinely self-employed, you need to register with HMRC and file a Self Assessment tax return each year. The registration deadline is 5th October after the end of the tax year in which you started earning.

Most security professionals operate as sole traders. It's straightforward, low-cost, and involves less admin than a limited company.

SIA Licensing — A Deductible Expense

To work in the security industry, you need a Security Industry Authority (SIA) licence. The costs are:

• Door supervisor licence: £210 (valid for 3 years)
• Security guard licence: £210 (valid for 3 years)
• Close protection licence: £210 (valid for 3 years)
• CCTV operator licence: £210 (valid for 3 years)

Plus the cost of the mandatory training courses to qualify:

• Door supervisor training: £150-£300
• Security guard training: £100-£200
• Close protection training: £2,000-£5,000+
• CCTV operator training: £100-£200

The good news: all of these are deductible business expenses. Your SIA licence renewal, your First Aid at Work refresher, your conflict management update — they all come off your taxable profit.

The caveat: your very first licence and initial training are sometimes challenged by HMRC as pre-trading expenses (costs of entering the trade rather than running it). However, there's a strong argument they're allowable, especially if you were already working in the sector. Keep the receipts regardless.

What Expenses Can You Claim?

Self-employed security professionals can claim a solid range of expenses:

Uniform and Equipment

• SIA-branded high-vis vests and jackets
• Security uniform (black trousers, white shirts, suit for corporate work)
• Boots and safety footwear
• Protective equipment (stab vests, body armour)
• Torch and batteries
• Two-way radios
• Body-worn cameras
• Handcuffs and restraint equipment (close protection)
• First aid kit

Remember, the clothing must be specifically for security work — not suitable for everyday wear. A pair of black trousers you'd wear to a restaurant doesn't qualify, but a clearly branded security uniform absolutely does. See our uniforms and protective clothing guide for the detail.

Travel Between Venues

If you work at different locations (which most self-employed security workers do), travel between venues is a deductible expense. You can claim:

• Mileage: 45p per mile for the first 10,000 miles, then 25p — see our mileage guide
• Public transport: bus and train fares
• Parking charges: at client sites

Important: travel from your home to a regular, fixed workplace is not deductible. But if you work at a different venue each night, or rotate between multiple sites, those journeys are business travel.

Insurance

• Public liability insurance
• Professional indemnity insurance
• Personal accident insurance
• Employer's liability (if you subcontract to other operatives)

CCTV Monitoring from Home

If you provide remote CCTV monitoring from a home office, you can claim a proportion of your household costs:

• Internet connection (business proportion)
• Electricity
• Heating
• Monitor and computer equipment

The simplified flat-rate method gives you a fixed deduction based on hours worked from home, but calculating the actual proportion can sometimes give a better result — especially if you've set up a dedicated monitoring room.

Other Expenses

• Mobile phone (business proportion)
• Accounting and bookkeeping fees
• Business bank account charges
• DBS check fees
• Marketing costs
• Professional body memberships

Agency Work — How It's Taxed

Many self-employed security workers pick up shifts through agencies. The tax treatment depends on how the agency structures the arrangement:

Agency PAYE: Some agencies put you on their payroll and deduct tax and NI at source. You'll receive a P45 or P60, and this income goes on your tax return as employment income.

Agency self-employed: Other agencies treat you as self-employed. You invoice them, they pay you gross (without tax deducted), and you're responsible for declaring the income and paying your own tax.

Umbrella companies: Some agencies route payments through umbrella companies. You'll typically be treated as employed by the umbrella company, and tax is deducted before you're paid.

If you work through multiple arrangements, your tax return might include a mixture of employment income and self-employment income. This is perfectly normal — just make sure you declare everything.

Unsocial Hours and Night Work

Security work often means nights, weekends, and bank holidays. From a tax perspective, there's no special treatment for unsocial hours — your income is taxed the same whether you earned it at 2pm or 2am.

However, the unsocial hours nature of the work does create practical challenges:

• Subsistence: you can claim reasonable food costs when working away from home, but not your regular meal costs on a normal shift
• Travel safety: late-night taxi costs when public transport isn't available may be deductible if you're travelling between work sites
• Health and wellbeing: unfortunately, gym memberships aren't deductible, even if fitness is essential for your role

Tax Rates for 2025/26

Your self-employed profits are taxed at:

• Personal allowance: £12,570 (tax-free)
• Basic rate: 20% on £12,571-£50,270
• Higher rate: 40% on £50,271-£125,140
• Additional rate: 45% above £125,140

Plus National Insurance:

• Class 2: £3.45 per week
• Class 4: 6% on profits between £12,570 and £50,270, then 2% above

Practical Example

You earn £35,000 from self-employed security work during the year. Your allowable expenses total £5,500 (SIA licence, mileage, uniform, insurance, phone, accounting).

Taxable profit: £29,500

• Income tax: 20% on £16,930 (£29,500 - £12,570) = £3,386
• Class 2 NI: £179
• Class 4 NI: 6% on £16,930 = £1,016

Total tax: approximately £4,581

Setting aside roughly 15% of your gross earnings would comfortably cover this.

Record Keeping

Keep records of:

• Every shift worked (date, venue, client, hours, fee)
• All expenses with receipts
• Mileage log for business travel
• Invoices issued and payments received
• SIA licence and training certificates

With Making Tax Digital on the horizon, digital record-keeping is becoming the norm. Accounted handles this seamlessly — Penny will categorise your shift payments and expenses as they come in, so your records are always up to date.

Common Mistakes

1. Accepting bogus self-employment — if you're really employed, you're paying too much tax and missing out on rights
2. Not claiming SIA licence costs — it's a legitimate business expense, don't miss it
3. Forgetting mileage — those trips between venues add up significantly over a year
4. Not keeping shift records — if HMRC queries your return, you need to show what you earned and when
5. Missing the Self Assessment deadline — file by 31st January or face automatic penalties

Keeping Things Secure — Including Your Finances

You spend your working life protecting people and property. Let Accounted protect your finances. With Penny handling the bookkeeping and keeping your records in order, you can focus on the job at hand without worrying about what's happening with your tax return.

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Related Reading

• IR35 — Complete Guide for Contractors
• Self Assessment Tax Return — Complete Guide
• Protective Clothing and Uniforms — What Can You Claim?
• Car Boot Sale Sellers — When HMRC Takes an Interest
• Computer Repair Technicians — Self-Employed Tax Guide
• Tax Guide for Osteopaths and Chiropractors

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