Paying Employees In The UK: Legal Basics

Getting pay right is one of the most important parts of running a small business. It isn’t just about choosing a salary and payday – UK law sets clear rules around minimum wage, payslips, deductions, holiday pay, pensions and more.

The good news? With a clear process, the right documents and a bit of legal know‑how, paying employees can be straightforward and stress‑free.

In this guide, we break down the essentials of paying employees in the UK, from setting up payroll and choosing pay structures to handling deductions, overtime and common pitfalls to avoid.

What Does UK Law Require When Paying Employees?

When you employ staff in the UK, several core laws govern how you pay them. At a high level, you must ensure employees are paid correctly, on time and with an itemised payslip – and that pay complies with minimum wage, working time and discrimination rules.

Core Legal Requirements

• Minimum Wage: You must pay at least the National Minimum Wage or National Living Wage (depending on age and apprentice status) under the National Minimum Wage Act 1998. Check the rates each April.
• Equal Pay: Men and women doing equal work must receive equal pay under the Equality Act 2010. This covers basic pay and contractual benefits.
• Working Hours and Holiday: Pay must reflect lawful working time and paid annual leave entitlements under the Working Time Regulations (e.g. 5.6 weeks’ paid holiday for full‑timers, pro‑rated for part‑timers).
• Payslips: You must provide an itemised payslip on or before payday (Employment Rights Act 1996), showing gross pay, deductions and net pay. If hours vary, you must show the hours being paid.
• Deductions: Other than tax and NI, deductions generally require the employee’s prior written agreement or must be required by law or the contract. Our guide to wage deductions explains the rules.
• Statutory Pay: You’ll need to process statutory payments correctly – including Statutory Sick Pay (SSP), Statutory Maternity Pay (SMP) and other family‑related leave pay.
• Pensions: Eligible staff must be auto‑enrolled into a qualifying workplace pension and receive employer contributions (Pensions Act 2008).

Employment Status Matters

Before you pay anyone, confirm whether they are an employee, a worker or self‑employed. Employment rights – including minimum wage, holiday and pensions – depend on this status, and misclassification can be costly. If you’re unsure, this overview of worker vs employee is a helpful starting point.

Get It In Writing

The safest way to lock in pay terms is in a written Employment Contract issued on or before day one. It should cover salary or wage rates, hours, overtime rules, commission or bonuses (if any), benefits, pension contributions, pay frequency and deductions you may lawfully make. Supporting policies in a Staff Handbook can give clear guidance on holiday, sickness, expenses and overtime.

Setting Up Payroll The Right Way

Once you hire your first employee, you’ll need to set up payroll properly so that tax, National Insurance (NI) and pensions are handled correctly and your employees get paid on time.

Register As An Employer With HMRC

Register with HMRC before your first payday. You’ll be given a PAYE reference and Accounts Office reference. From there, you must run payroll and report in Real Time Information (RTI) on or before each payday so HMRC has up‑to‑date data about pay, tax and NI.

Run PAYE And NI Deductions

Each pay period, your payroll should calculate:

• Gross pay (salary, hourly pay, overtime, bonuses, commission)
• Employee deductions (Income Tax, NI, pension contributions, other lawful deductions)
• Employer NI and pension contributions

Make sure any benefits in kind, attachments of earnings or student loan deductions are correctly processed.

Choose Pay Frequency And Processes

Most small businesses pay monthly or weekly. Whatever you choose, be consistent and clear in your contracts. Build in checks so variable pay elements (overtime, commission, expenses) are approved and recorded before payroll cut‑off.

Don’t Pay Late

Late or missed wages risk breaching contract and minimum wage rules, damaging trust and potentially triggering claims. There can also be penalties if you submit late RTI returns. To understand the risks and practical fixes, have a look at what happens if you pay employees late.

Keep Clear Records

You must keep payroll and working time records (including hours for workers on variable pay) long enough to demonstrate compliance. Accurate timekeeping is key to meeting minimum wage and holiday pay obligations, especially for part‑time and shift‑based roles.

Choosing Pay Structures And Contract Terms

There’s no “one‑size‑fits‑all” pay model. The best approach depends on your industry, roles and incentive strategy. The key is to pick a lawful and transparent structure – and document it clearly in your contracts and policies.

Salary Vs Hourly Pay

• Salary: Predictable monthly amount; commonly used for full‑time roles. You still need to ensure pay doesn’t dip below minimum wage when accounting for actual hours.
• Hourly: Better for variable shift work. Track hours carefully and pay for all time worked (including mandatory training or travel time where required).

Commission And Bonus Arrangements

Sales roles often include commission or a bonus. Decide whether commission is on top of base pay or part of it, when it accrues, when it’s payable, and what happens on termination or if invoices are unpaid or refunded. If you’re considering performance‑linked pay, this guide to paying staff on a commission‑only basis outlines the legal considerations.

Where commission is a key feature of the role, provide a clear scheme in your Employee Commission Agreement or as a schedule to the employment contract.

Overtime And Unsociable Hours

Overtime pay can be contractual or discretionary, but you must still comply with the Working Time Regulations limits on average weekly hours and rest breaks. If you pay premiums for overtime or night work, spell out eligibility and rates. For policy and risk points around long or irregular hours, read our overtime guide.

Expenses And Benefits

Set clear rules for expenses (what’s reimbursable, caps, receipts) and how they’re approved. Some allowances – like mileage or fuel reimbursement – have HMRC frameworks; our note on employee fuel pay covers practical tips on complying with HMRC rates and record‑keeping.

Hours, Breaks And Opt‑Outs

Contracts should reference standard hours, breaks and any opt‑out process for the 48‑hour weekly limit. If using an opt‑out, make sure it’s voluntary, can be withdrawn and is properly recorded under the Working Time Regulations.

Handling Deductions, Overpayments And Mistakes

Even with a solid process, payroll issues can happen. UK law is strict about what you can and can’t deduct, and how you correct errors.

Lawful Deductions

You can deduct tax, NI and employee pension contributions. Other deductions generally require prior written consent or must be set out in the contract (for example, agreed deductions for salary sacrifice or certain training costs). Unlawful deductions can trigger claims under the Employment Rights Act 1996 – our explainer on wage deductions outlines safe practices.

Uniforms, Till Shortages And Damage

If you intend to deduct for uniforms, equipment, till shortages or damage, your contract must clearly permit it and you must always respect minimum wage rules (deductions for employer’s own use or benefit can count towards minimum wage calculations). Be particularly careful with deductions for cash or stock losses; fairness and clear evidence matter.

Overpayments

If you accidentally overpay an employee, you can usually recover the net overpayment – but you should act reasonably, explain the error and agree a repayment plan where appropriate. Mishandled recovery can damage trust and lead to disputes. For the key steps and risks, see our guide to wage overpayments.

Correcting Underpayments

If you’ve underpaid, rectify it promptly, provide an explanation and adjust your processes to prevent a repeat. Underpayments can create minimum wage breaches and holiday pay liabilities, so fix them quickly and document the correction in the next payslip or a separate statement.

Ending Employment And Final Pay

On termination, pay all sums due: salary up to the last day, accrued but untaken holiday pay, outstanding overtime/commission (in line with the scheme rules) and expenses. If you operate a “pay in lieu of notice” clause, ensure it’s permitted by the contract and properly calculated.

When Pay Varies: Overtime, Commission, Expenses And Leave

Many small businesses have roles where pay fluctuates. Make sure your contracts and payroll can handle variable pay correctly and fairly.

Calculating Holiday Pay On Variable Pay

Holiday pay should reflect “normal remuneration”. Where pay includes regular overtime or commission, you’ll often need to include an average of those payments when calculating holiday pay. Keep reliable records to make this manageable.

Overtime And Night Work

If staff work overtime or at night, ensure:

• Overtime rates and eligibility are set out in the contract or policy
• Working time limits and rest periods are respected
• Night workers receive required health assessments and any agreed pay premiums

Commission Schemes

Well‑designed commission schemes drive performance and reduce disputes. Clarify sales attribution, clawback (if customers cancel or default), caps or thresholds, and the timing of accrual versus payment. If the role is purely or primarily performance‑based, revisit the considerations in our commission‑only guide.

Sick Leave, Family Leave And Statutory Pay

Ensure your payroll can process SSP, SMP and other statutory payments, and that your contracts and policies explain eligibility and notification requirements. Many employers also offer contractual sick pay – if so, set out the rules clearly to avoid confusion.

Expenses And Allowances

For mileage, subsistence or tool allowances, use HMRC rates where applicable and require timely receipts. Make sure the Employment Contract or expenses policy explains when claims are payable, cut‑off dates and any caps to reduce friction.

Record‑Keeping, Data Protection And Compliance

Getting pay right isn’t just about calculations – you also need to protect employee data and keep the right records.

Data Protection For Payroll

Payroll involves large amounts of personal and special category data (e.g. health notes for sick pay). Under UK GDPR and the Data Protection Act 2018, you must have a lawful basis for processing, limit access, and keep data secure. Publish a clear Privacy Policy and make sure your payroll provider has adequate data protection terms.

Right To Work And Status Checks

Before paying anyone as an “employee”, confirm their right to work in the UK and their employment status. Misclassification (e.g. paying a “contractor” who is really an employee) can cause tax, NI and employment law liabilities – our overview of worker vs employee sets out the key differences.

Record‑Keeping Essentials

• Payroll records – pay, deductions, pension contributions and RTI submissions
• Working time records – hours worked (especially for hourly and variable‑hours staff)
• Holiday records – accrual, requests and pay calculations
• Commission/overtime approvals and calculations
• Auto‑enrolment communications and opt‑out notices

Keep records long enough to defend claims and prove compliance. Robust documentation also helps if HMRC or The Pensions Regulator asks questions.

Policies And Controls

A concise set of policies makes payroll smoother: expenses, overtime, absence reporting and holiday booking should all be covered in your Staff Handbook. This reduces ambiguity and speeds up approvals ahead of payroll cut‑off.

Common Payroll Pitfalls (And How To Avoid Them)

Most pay disputes are preventable with clear contracts, clean processes and regular checks. Here are the pitfalls we see most often.

1) Not Updating For Minimum Wage Changes

Rates change each April. Diarise updates for hourly rates, salaried staff close to the threshold, and roles with unpaid travel or extra duties that could push effective pay below the minimum.

2) Vague Or Missing Pay Terms

Ambiguity breeds disputes. Use a clear Employment Contract and supporting policies that set out pay, overtime, commission, bonuses, deductions, expenses and pay frequency.

3) Unlawful Deductions

Only make deductions that are required by law or clearly agreed in advance. If in doubt, pause and review the rules on wage deductions.

4) Missing Holiday Pay On Variable Pay

Where commission or overtime is a regular feature of pay, update your holiday pay calculations to reflect normal remuneration and keep a simple audit trail of how you calculated it.

5) Delayed Or Inaccurate Payments

Late wages create legal risk and erode trust. Build contingency into your process (back‑up approvers, clear cut‑offs, verification checks) so you don’t pay employees late.

6) Poor Handling Of Overpayments

Don’t ignore or rush recovery. Communicate transparently, agree a reasonable plan and follow fair procedures – the guidance on wage overpayments sets out a safe approach.

7) Data Protection Gaps

Payroll data is sensitive. Limit access, use secure systems and keep your Privacy Policy and processor terms up to date to meet UK GDPR duties.

Key Takeaways

• Set your legal foundations early: confirm employment status, issue a written Employment Contract on or before day one and register for PAYE with HMRC.
• Meet core legal duties when paying employees: minimum wage, Working Time limits, equal pay, pensions auto‑enrolment and itemised payslips.
• Choose a clear pay structure and document it – including overtime, bonuses and commission. Where relevant, use a dedicated commission agreement.
• Be careful with deductions and corrections: follow the rules on wage deductions and handle overpayments fairly.
• Account for variable pay in holiday pay calculations and keep accurate working time and payroll records to demonstrate compliance.
• Protect payroll data under UK GDPR with a current Privacy Policy and secure processes.
• If any of this feels overwhelming, don’t stress – getting tailored advice now will save time and headaches later, and help you stay compliant as you grow.

If you’d like help setting up contracts, policies or payroll‑related legals for your team, you can reach us at 08081347754 or team@sprintlaw.co.uk for a free, no‑obligations chat.