Employed or Self-Employed?

Many people believe that employment status is something they can choose. A business owner takes on a regular worker, draws up a short agreement describing the person as self-employed, pays them gross, and considers the matter closed. The worker, pleased to manage their own tax, is equally content.
HMRC (His Majesty’s Revenue and Customs) does not accept this framing. Whether someone is employed or self-employed is not determined by what a contract says, what the worker prefers, or what the engager (the business or person hiring them) finds most convenient. It is determined by the substance of the actual working relationship.
The tax treatment, the National Insurance Contributions (NICs) owed, the expenses that can be deducted, and the legal rights that apply all differ significantly between the two statuses. When the classification is wrong, the person or business responsible can face backdated tax demands, interest charges, financial penalties, and in some cases employment law claims stretching back years.

Why the Distinction Matters More Than Most People Expect

Two separate pieces of legislation govern this area. Income from employment is taxed under the Income Tax (Earnings and Pensions) Act 2003 (ITEPA 2003). Income from self-employment is taxed under the Income Tax (Trading and Other Income) Act 2005 (ITTOIA 2005). These are entirely different legal frameworks, with different rules on tax collection, expense deductions, National Insurance, and employment rights.
The table below shows where the key differences sit. They are more substantial than most people realise:

The difference in employer National Insurance is the most significant financial gap. On a worker earning £42,000, the engager saves over £4,500 per year by treating them as self-employed rather than employed. That saving is the financial incentive that sits behind most misclassification. The table below shows exactly where those numbers come from:

The Tests HMRC and the Courts Use

The legislation does not define where the boundary between employed and self-employed lies. That boundary is established by case law: decades of court decisions in which HMRC and taxpayers have disputed status, and judges have set out the principles that apply. There is no single definitive test. A picture is built from multiple factors, all assessed together.
Step One: The Four Gateway Conditions
Before a person can be classed as an employee, four conditions must all be present in the working relationship:
• Mutuality of obligation: the engager must be under an obligation to offer work, and the worker must be under a corresponding obligation to accept and carry it out. Where neither party is bound in this way, the relationship points away from employment.
• Personal service: the worker must perform the work themselves. If they have a genuine, exercised right to send a substitute in their place, this points towards self-employment. A contractual clause allowing substitution is not enough on its own. HMRC looks for evidence that a substitute has actually been used.
• Control: the engager has the right to direct what the worker does, how they do it, and when. If the worker has full autonomy over their working methods and schedule, this points to self-employment. Where the worker is a genuine specialist (a surgeon or a ship’s captain, for example), the control test carries less weight as an indicator.
• Wage paid directly to the worker: the payment goes to the individual, not to a third party, intermediary, or company.
Step Two: The Economic Reality Test
Once the four gateway conditions are considered, a further set of factors is weighed. These are known collectively as the “multiple factors” or “economic reality” test. No single factor is decisive. They are weighed together, and the overall picture that emerges determines the outcome:

The Hall v Lorimer case (1993) shows exactly how much the courts value substance over paperwork. A vision mixer working across multiple production companies was found to be self-employed partly because, on several occasions, he had actually provided a substitute to complete specific contracts. That substitution was evidenced in practice, not merely written into a contract that was never used. Courts do not give weight to contractual rights that are never exercised.

The consequences of this reclassification are significant and affect both parties:
• Income tax that should have been deducted through PAYE was not. Brightwall is now liable for the amounts that should have been withheld at source on every payment made to Marco.
• Class 1 primary NICs at 8% should have been deducted from Marco’s pay, not Class 4 at 6%. His personal tax position must be revised and the difference paid.
• Class 1 secondary NICs (employer contributions) are owed by Brightwall on every payment above the secondary threshold. These were never paid. Interest runs from each original due date, not from the date of the enquiry.
• Marco’s expense deductions, including daily travel to the same fixed site, are not allowable for employees. Employment expense rules apply the “wholly, exclusively and necessarily” test, which is considerably stricter than the self-employed equivalent. His deductions must be reversed.
• As a reclassified employee, Marco has statutory rights he was not receiving, including entitlement to paid holiday and potentially statutory sick pay. These may be the subject of a separate employment claim.
• If Marco was registered for VAT (Value Added Tax) as a self-employed trader, that registration must be revisited and any VAT collected or reclaimed may need to be adjusted.

The responsibility for correctly determining employment status rests with the engager, not the worker. A business that misclassifies workers as self-employed, when the working reality points clearly to employment, is the primary target of any HMRC enquiry. Marco will receive a tax adjustment. Brightwall faces the larger financial exposure: backdated employer NICs, interest, and potentially penalties across every year the arrangement ran.

The Rule Most People Miss: IR35 and Limited Company Contractors

The tests above cover the employed versus self-employed question for individuals working personally under a direct contract. They do not cover a closely related set of rules that affects a large number of UK contractors: IR35.
IR35 is the common name for the off-payroll working rules. Introduced in 2000 and reformed significantly in 2017 (for public sector engagers) and 2021 (for medium and large private sector businesses), the rules apply to a specific scenario. A worker operates through their own limited company, often called a Personal Service Company or PSC. But the working relationship with their end client, stripped of the company structure, would look like employment.
Under IR35, if that working relationship would be employment if examined directly, the income is taxed as though it were a salary. The salary and dividend planning that makes limited company directorship tax-efficient becomes largely irrelevant. The income is treated as employment income regardless of how it is extracted from the company.

If You Operate Through a Limited Company: Salary, Dividends, and Real Decisions

Sole trader self-employment and limited company directorship are not the same thing. A sole trader is personally self-employed. A director of their own limited company is technically employed by that company, even if they own every share in it. The employed versus self-employed question is largely settled by the company structure itself. The question that replaces it is: how do you extract profit from the company in the most tax-efficient way that HMRC will accept?
The core challenge is a double tax problem. The company pays Corporation Tax on its profits first, at between 19% and 25% depending on profit level. You then pay Income Tax or Dividend Tax when extracting what remains. The goal is to structure that extraction so the combined tax burden across company and personal levels is as low as legally possible.

Three salary levels to consider:

£5,000 salary: Zero employee NICs. Zero employer NICs. Zero Income Tax.
No State Pension qualifying year is earned at this level.
Suited to directors whose total income exceeds £100,000, where avoiding the Personal Allowance taper is the priority.

£6,500 salary (recommended for most directors):
Costs approximately £225 in employer NICs. Earns a qualifying year for the State Pension.
The full State Pension is currently £11,973 per year. You need 35 qualifying years.
One qualifying year is worth approximately £342 per year in retirement, for life.
The return on that £225 is over 60% annually, every year of retirement.

£12,570 salary:
Uses the full personal allowance tax-free. Triggers employer NICs of approximately £1,136.
Suited to directors with moderate profits (under £50,000), or those needing higher income evidence for a mortgage application.

Dividends are paid from post-tax company profits and attract no National Insurance of any kind. The first £500 of dividends per year is tax-free. Dividend tax rates are 8.75% in the basic rate band, 33.75% in the higher rate band, and 39.35% at the additional rate. On a company profit of £50,000, the optimal salary plus dividends combination typically puts approximately £4,600 more into the director’s pocket than an all-salary approach, at a significantly lower effective rate.
Three points that directors frequently overlook:
• The Personal Allowance taper: when total income exceeds £100,000, the personal allowance reduces by £1 for every £2 above that level. Between £100,000 and £125,140, the effective income tax rate is 60%, not 40%. Employer pension contributions made before the year-end can reduce adjusted net income below £100,000 and restore the full allowance.
• Employment Allowance: worth £10,500 in 2025/26, this relief reduces employer NICs. It is not available to companies where the sole employee is also the director. If the company has other employees, the allowance may be claimable and significantly changes the optimal salary calculation.
• Dividends require distributable profit: a dividend paid without sufficient accumulated profit in the company is unlawful under the Companies Act 2006. It must be repaid, and directors can be personally liable. Board minutes and dividend vouchers must be properly prepared for every dividend payment, in advance of the withdrawal.

The Third Status: How Employment Law Is Changing

Beyond employed and self-employed, UK employment law currently recognises a third status: the worker. Workers (delivery riders, platform drivers, and gig economy participants) have some but not all the protections of employees. They are entitled to the national minimum wage and paid holiday, but not the full set of employment rights.
The Employment Rights Act 2025 signals the government’s longer-term ambition to consolidate the employed and worker categories into a single status, with a genuinely self-employed category preserved for those running truly independent businesses. This change is expected to take shape from 2027, subject to a consultation process that began in Autumn 2025.
Recent court rulings (the Uber Supreme Court decision in 2021 and subsequent cases involving Bolt and Addison Lee) demonstrate that courts increasingly look through contractual labels to examine the reality of working relationships. Fewer people will qualify as genuinely self-employed under the direction this law is heading. More will find themselves reclassified, with tax obligations and employment rights adjusted accordingly.

Making Tax Digital: The Reporting Change Every Sole Trader Needs to Prepare For

The government is rolling out Making Tax Digital for Income Tax (MTD ITSA), which changes how self-employed people and landlords report their income to HMRC. This is not a change to tax rates. It is a change to the process and frequency of reporting, and it will affect almost every sole trader within three years.

MTD ITSA rollout timetable

Under MTD ITSA, digital records must be maintained throughout the year and quarterly updates submitted to HMRC, in addition to an annual return. Paper-based bookkeeping will not be sufficient. For anyone currently managing their own tax through a spreadsheet and a January deadline, April 2026 is considerably closer than it feels.

<h3 Several structural changes will affect employment status and tax planning for the self-employed between now and 2030. None of them are minor:
• Making Tax Digital becomes mandatory for almost every sole trader by April 2028. Quarterly digital reporting replaces the annual Self Assessment return as the primary method of engaging with HMRC.
• The Employment Rights Act 2025 consultation on single worker status is expected to produce legislation by 2027. If enacted, the three-way split between employee, worker, and self-employed becomes two categories. More working relationships come under employment law protection.
• HMRC’s data analytics capability is growing. The days when misclassification could be questioned only during a random enquiry are passing. Pattern detection across payroll data now flags engagers who use large numbers of contractors whose working arrangements resemble employment.
• IR35 case law continues to narrow the space available for contractor structures. The question “would this person be an employee if working directly?” is being asked more frequently, and answered more often in the affirmative.
• Dividend tax rates are increasing from April 2026: basic rate rises to 10.75%, higher rate rises to 35.75%. For limited company directors, the annual review of salary and dividend mix becomes more important, not less.

Practical Steps to Take Right Now

• Sole traders working predominantly for one client should review their working arrangements against the status tests in this article at least once a year. If the employment column describes your situation more accurately than the self-employment column, seek a professional view before your next tax return.
• Businesses that engage contractors and freelancers bear the legal responsibility for determining status correctly. A determination that reduces business costs by misclassifying workers as self-employed is the most common starting point for an HMRC enquiry into payroll.
• Limited company directors should verify their IR35 position before any salary and dividend planning. Speak to a qualified accountant about the optimal structure for your specific profit level. Review the structure at the start of each tax year, not at the end of it.
• For everyone: Making Tax Digital is coming. If you do not already use accounting software, April 2026 is not far away. Putting proper digital bookkeeping in place now costs significantly less time and money than catching up under a compliance deadline.
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