Hiring Your First Employee as a UK Trade Business — The Complete Guide (2026)

Taking on your first employee is the biggest decision most trade business owners ever make. It turns you from a self-employed tradesperson into an employer with legal obligations, ongoing costs, and management responsibility for another person. Done right, it unlocks capacity and revenue that is simply impossible as a sole trader. Done wrong, it can create financial and legal problems that take years to unwind. This guide covers everything you need to know before that first person sets foot on your jobs.

When to hire: the demand signals that tell you it's time

The most common mistake is waiting too long. Trade business owners hold off until they are completely overwhelmed, which means they make a rushed hire under pressure — exactly the wrong conditions. There are three clear demand signals that tell you the time is right before you hit breaking point.

• You are turning down work. If you have declined profitable jobs consistently for three months or more — not just low-value ones you chose not to take — demand genuinely exceeds your capacity. One or two turned-away jobs is a blip; a sustained pattern is a structural signal.
• You are regularly working evenings and weekends. Working extra hours to clear a temporary rush is normal. Working evenings and Saturdays every single week for months on end is your business telling you it needs more capacity. That is not sustainable, and it is not why you went self-employed.
• You have 18 or more months of consistent demand. Seasonal spikes do not justify the fixed cost of employment. What you need is a baseline level of enquiries and booked work that has remained strong across at least one full seasonal cycle — ideally 18 months. That tells you the demand is structural, not a run of good luck.

The financial test is simple: can the additional revenue a second person generates cover their all-in cost of employment, with margin left over? For most trades, a second person generating £150–£200 per day in billed labour more than covers their cost. The maths usually works well before the emotional readiness catches up.

Employed vs self-employed subcontractor: IR35 and employment status rules

Before you decide how to structure your first hire, you must understand how HMRC determines whether someone is an employee or a genuinely self-employed subcontractor. Getting this wrong exposes you to significant back-tax liability.

HMRC uses an employment status test based on three core factors: control, substitution, and mutuality of obligation. A worker is more likely to be an employee if you control how, when, and where they work; if they cannot send a substitute in their place; and if there is an ongoing obligation on both sides — you to offer work, them to accept it. Additional factors include whether you provide their tools and equipment, whether they work exclusively for you, and how integrated they are into your day-to-day operations.

HMRC provides a free online tool called CEST (Check Employment Status for Tax) at gov.uk. Run the working arrangement through it before deciding how to engage someone. It is not legally binding but gives you a defensible position if HMRC ever investigates.

False self-employment — using a subcontractor arrangement to avoid employer costs when the relationship looks like employment — is actively investigated by HMRC in the construction sector via CIS compliance checks. If found, you can be liable for unpaid employer's NI and income tax going back up to six years, plus penalties and interest. The risks far outweigh any short-term cost saving.

A genuine subcontractor sets their own hours, works for multiple clients, uses their own tools, invoices you for services, can send a substitute, and bears genuine financial risk if a job goes wrong. If your arrangement is materially different — particularly if the person works only for you, on your schedule, using your tools — employ them properly.

Whatever arrangement you choose, a written contract is essential. For employees this is the contract of employment. For genuine subcontractors it is a subcontractor agreement that clearly documents the nature of the self-employed relationship and the basis on which they invoice you. A written contract does not in itself determine employment status — HMRC looks at the reality of the working relationship — but it is an important part of managing the risk.

The real cost of employing someone

The salary you advertise is not what employment actually costs you. Employer costs sit on top of the headline wage and add up significantly. A skilled tradesperson in the UK typically earns £25,000–£35,000 per year as an employee in 2026, depending on trade, experience, and location.

A £30,000 salary costs you approximately £35,000–£37,000 all-in once you factor in employer NI, pension, insurance and equipment. This is before recruitment costs, training time, or any management overhead. Your pricing must account for the real cost of having that person on the books — not just the salary figure.

PAYE registration: register before the first pay day

You must register as an employer with HMRC before your employee's first pay day. Registration is done online via the Government Gateway and takes around 10 minutes. HMRC will then issue you an employer PAYE reference number — allow up to five working days to receive it, though it is often faster. You will also receive an Accounts Office reference, which you use when making PAYE payments to HMRC.

Do not wait until the last minute. If your PAYE reference has not arrived by the time you need to run payroll, you cannot legally submit. Register as soon as you have agreed a start date.

Payroll and Real Time Information (RTI)

Under Real Time Information (RTI), you must submit a Full Payment Submission (FPS) to HMRC on or before every pay day. The FPS tells HMRC exactly what you paid each employee, what income tax and National Insurance was deducted, and what employer NI you owe. Missing or late RTI submissions attract automatic penalties.

Most trade businesses use payroll software to handle this. The main options in 2026 are:

• Xero Payroll — integrates with Xero accounting, clean interface, handles RTI automatically
• QuickBooks Payroll — similar integration for QuickBooks users, good for small teams
• BrightPay — popular with accountants, very capable at low cost, strong auto-enrolment handling
• Moneysoft Payroll Manager — straightforward, widely used by UK small businesses and bookkeepers

Alternatively, hand payroll to your accountant. For one or two employees it typically costs £50–£100 per month and removes the compliance burden entirely. That is well worth it in the early stages when you have enough on your plate already.

Workplace pension: auto-enrolment obligations

Auto-enrolment is not optional. Under the Pensions Act 2008, every employer must automatically enrol eligible workers into a qualifying workplace pension scheme. An employee is eligible if they are aged 22 to state pension age and earn more than £10,000 per year. If they earn between £6,240 and £10,000 they can opt in; below £6,240 they can still join but you are not required to enrol them automatically.

Your auto-enrolment duties begin from your employee's staging date — for new employers, this is effectively the first day you have staff. You must declare compliance with The Pensions Regulator within five months of that date.

The minimum contributions in 2026 are 3% from you as the employer and 5% from the employee, calculated on qualifying earnings (pay between £6,240 and £50,270 per year). The total minimum is 8%.

NEST (National Employment Savings Trust) is the government-backed default pension provider. It accepts all employers with no set-up fee and is the simplest choice for most small trade businesses. Your payroll software can usually integrate with NEST directly to automate contributions. Employees can opt out after being auto-enrolled, but you must re-enrol them every three years.

Employment contract: what must be included

Since April 2020, you must provide a written statement of employment particulars on or before the employee's first day. Failing to provide one does not invalidate the employment but can be used against you at an Employment Tribunal and results in a minimum two-week pay award to the employee.

The written statement must include at minimum:

• Names of employer and employee, and start date
• Job title and brief description of duties
• Place of work (or a statement that they will work at various locations)
• Salary or wage rate and how often it is paid
• Hours of work, including any overtime arrangements
• Holiday entitlement and holiday pay (statutory minimum is 5.6 weeks for full-time)
• Sick leave and sick pay arrangements (SSP as minimum)
• Notice period required on both sides
• Whether a probationary period applies and its conditions
• Pension arrangements
• Disciplinary and grievance procedures (or reference to a separate policy)

Do not write this yourself from scratch. Use the ACAS contract template, a solicitor-drafted template from an HR platform such as Peninsula or Citation, or ask your accountant to recommend one. A properly drafted contract is cheap insurance against expensive disputes.

Right to work checks: before they start, not after

You have a legal obligation to check that every employee has the right to work in the UK before they start work. The check must happen before day one. The civil penalty for employing someone without the right to work is up to £60,000 per illegal worker from 2024, and potentially criminal prosecution if you knowingly employed them.

For British and Irish nationals, acceptable documents include a valid UK or Irish passport, or a UK birth certificate combined with a National Insurance number document. For non-UK/Irish nationals, use the Home Office online right to work checking service with a share code (for those with settled or pre-settled status) or check a valid visa or Biometric Residence Permit.

You must take a copy of the document, record the date you checked it, and retain the copy for the duration of employment plus two years afterwards. If you conduct the check correctly and the document appeared genuine, you have a statutory excuse against a civil penalty even if the document later proves fraudulent.

Training, induction and safe systems of work

As an employer you have a duty of care under the Health and Safety at Work Act 1974. That means providing a safe working environment, safe systems of work, and adequate training — mandatory even for a one-employee business.

A basic induction for a trade operative should cover:

• Trade skills and your company standards — how you expect work to be completed and presented to customers
• Safe systems of work — site risk assessments, method statements, working at height procedures
• COSHH (Control of Substances Hazardous to Health) — any chemicals or substances they will use need a COSHH assessment; employees must be trained on each one
• Manual handling awareness — particularly relevant for materials handling on site
• PPE requirements — what PPE is required for different tasks, how to use and maintain it
• Emergency procedures — first aid location, what to do if there is an accident at a customer's property

Keep a signed record of training given from day one. This becomes important if there is ever a workplace accident or an HSE investigation.

Managing performance: probation, supervision and feedback

Most employment contracts include a probationary period of 3–6 months. During this time, the notice period required on either side is shorter (typically one week), and it is considerably easier to part ways if the hire is not working out. Use the probation period actively — not as a formality.

Supervise closely in the first few weeks. Work alongside your new hire on the first several jobs so you can see their standard of work directly, not through second-hand customer feedback. Set explicit expectations about what good looks like: how jobs should be left, how customers should be communicated with, what paperwork or photos are required.

Give feedback regularly and specifically. Vague praise or vague criticism are both useless. "The way you explained the problem to the customer before starting work was exactly right — keep doing that" is useful. "The job sheet was incomplete — here is what I need you to fill in and why" is useful. Address issues early; problems left unaddressed in the first month become entrenched habits by month three.

If performance is not improving during the probation period, use it. End the employment with the contractual notice, document your reasons in writing, and move on. Keeping a poor hire past probation out of conflict-avoidance is a mistake that becomes increasingly costly and legally complicated over time.

Apprentices: a different route into your first hire

Hiring an apprentice is a genuine alternative to taking on an experienced tradesperson. Apprentices are typically aged 16–24 (or 25 and over if they have an Education, Health and Care Plan), split their time between on-the-job training with you and off-the-job training at a college or training provider, and come at a significantly lower wage cost.

Apprentice wages in 2026 typically run from £6.40 to £8.00 per hour depending on age and year of the apprenticeship, making them considerably cheaper than a qualified tradesperson. The trade-off is that they need significantly more supervision, produce less billable work in the early stages, and require you to support their off-the-job training (at least 20% of their contracted hours).

The government funds the vast majority of apprenticeship training costs through two routes:

• Apprenticeship Levy — applies only if your annual payroll exceeds £3 million. You pay 0.5% of payroll into a digital account and draw from it to pay for training. This does not apply to most trade businesses.
• Co-investment — for businesses with a payroll under £3 million. The government pays 95% of the approved training cost; you pay just 5%. For a typical trade apprenticeship costing £15,000 over the programme, your contribution is £750. This is an excellent deal if you have the capacity to train properly.

Contact your local college or training provider to find out which apprenticeship standards are available for your trade. The Institute for Apprenticeships and Technical Education website lists all approved standards and their funding bands.

How Trade2Base helps you know when you're ready to hire

One of the hardest parts of the hiring decision is knowing whether the demand you are experiencing is genuinely consistent enough to justify the fixed cost of employment — or whether you are in the middle of a busy spell that will ease off in a few months.

Trade2Base tracks your enquiries, your conversion rate, and your booked job pipeline over time. Rather than going on gut feel, you can look at actual data: how many enquiries have you received per month over the past 12 months? What percentage converted to jobs? How far ahead is your diary booked? How many jobs did you turn down or refer on?

That data gives you a defensible answer to the "are we ready to hire?" question — not just a feeling. It also gives you something concrete to show an accountant or business adviser if you want a second opinion on the financials before committing to employment.