National Minimum Wage & Living Wage Compliance for UK Employers

National Minimum Wage (NMW) and National Living Wage (NLW) compliance is one of the most actively enforced areas of employment law in the UK. HMRC conducts thousands of investigations each year, and underpayment — even where unintentional — results in arrears repayment, financial penalties of up to 200% of arrears, and public naming. This guide explains the rates, who qualifies, common pitfalls, and enforcement.

1. Current Rates 2024/25

The following rates apply from 1 April 2024 to 31 March 2025:

The NLW applies to all workers aged 21 and over, including part-time workers, casual workers, workers on zero-hours contracts, and agency workers. There is no upper age limit — workers over State Pension Age are entitled to NLW if they continue working.

The apprentice rate applies to apprentices aged under 19, or those aged 19 or over who are in the first year of their apprenticeship. Once an apprentice is aged 19 or over and past their first year, they are entitled to the NMW/NLW rate for their age.

2. April 2025 Rates

Significant increases took effect from 1 April 2025, following the Low Pay Commission's recommendations:

The April 2025 increases — particularly the 16.3% rise for 18–20 year olds — represent the largest cash increase in this age band since the NMW was introduced. Employers in hospitality, retail, and care sectors employing young workers should review payroll budgets well in advance of April each year.

3. Who Qualifies

NMW/NLW applies to workers, a broader category than employees. Workers include:

• Employees (those with employment contracts)
• Casual workers on zero-hours contracts
• Agency workers (the agency is responsible for paying NMW)
• Homeworkers and outworkers
• Agricultural workers
• Apprentices (at the apprentice rate for qualifying periods)

Interns: The legal position on interns is frequently misunderstood. If an intern is doing real work and is an integral part of the business (even if described as 'shadowing' or 'work experience'), they are likely a worker and entitled to NMW. Only genuine voluntary work, volunteering at charities, or structured educational work experience placements (e.g. school students on placements of up to 1 year as part of a UK-based further or higher education course) are exempt.

Self-employed workers are not entitled to NMW. However, HMRC and employment tribunals look at the reality of the working arrangement, not the label — sham self-employment to avoid NMW is unlawful and increasingly challenged.

Exemptions: Genuine volunteers at charities and not-for-profit organisations; members of a family living and working in a family business; prisoners on work schemes; participants in certain government employment programmes.

4. What Counts as Pay

NMW pay is calculated on gross pay before some deductions but after others. Certain deductions or payments reduce NMW pay (making underpayment more likely):

• Uniform/clothing costs — deductions or charges for mandatory work clothing or footwear reduce NMW pay
• Tools and equipment — costs the worker bears for tools required for the job
• Accommodation offset — employer-provided accommodation above the accommodation offset rate (£9.99/day or £69.93/week in 2024/25) reduces NMW pay
• Tips paid through payroll — employer-administered tips and service charges count toward NMW pay only if paid through the payroll (not cash tips that the employer collects and pays out)

Deductions that do not reduce NMW pay include:

• Income tax and National Insurance deductions
• Repayment of a genuine loan
• Advance of wages
• Penalties for misconduct (but these must comply with contract terms)

Note: the Employment (Tips, Gratuities and Service Charges) Act 2023 came into force in October 2024, requiring all tips to be passed to workers in full and transparently, with a written tips policy. This interacts with NMW rules around tip allocation.

5. Hours That Must Be Paid

NMW regulations define four types of work, each with different rules for counting hours:

• Time work — paid by time worked (hours). Includes all time at work when required to be there, travel between assignments (but not home-to-work travel), training required by the employer, and time on standby at the workplace.
• Salaried hours work — workers who have a contract for a basic number of hours per year and are paid an annual salary. Hours are the contracted basic hours.
• Output work— piece workers paid by the piece/task. Employers must either pay NMW for each piece at a rate calculated to produce average NMW earnings, or use the 'rated output work' approach based on a fair piece rate.
• Unmeasured work— work with no fixed hours agreed. The employer and worker may agree a 'daily average agreement' specifying the average hours expected, and pay is calculated on that basis.

6. Sleep-In Shifts

The Supreme Court ruling in Royal Mencap Society v Tomlinson-Blake [2021] UKSC 8 resolved years of uncertainty about whether workers who sleep at their workplace during a sleep-in shift are entitled to NMW for the sleeping hours.

The ruling established that:

• Workers who are permitted to sleep during a sleep-in shift and are only required to respond if needed are notperforming 'time work' during sleeping hours
• Only time when the worker is actually awake and working counts as time work for NMW purposes
• A sleep-in shift is different from a 'on call' shift at the workplace where the worker must remain awake and available throughout

For care sector employers, this means sleep-in allowances paid as a flat rate (rather than an hourly rate) are legally permissible provided workers receive at least NMW for any hours they are actually called upon to work during the night. Employers should review records to ensure this is documented.

7. HMRC Enforcement

HMRC's National Minimum Wage enforcement team investigates all complaints from workers and conducts proactive inspections, particularly in sectors with a history of underpayment (hospitality, social care, retail, cleaning, agriculture).

Enforcement powers and consequences:

• Arrears notice — requiring back-payment at the current NMW rate (not the rate at the time of underpayment), which increases the cost of historic underpayment when rates have risen
• Financial penalty — 200% of total arrears owed, subject to a cap of £20,000 per worker. For example: 5 workers underpaid by £2,000 each = £10,000 arrears + £20,000 penalty = £30,000 total
• Naming scheme — employers with arrears above the de minimis threshold are named on GOV.UK. Lists are published approximately quarterly and attract significant press coverage
• Criminal prosecution— for wilful non-compliance (e.g. falsifying records, deliberately underpaying). Unlimited fines and up to 2 years' imprisonment

Workers can also bring claims to employment tribunals for unlawful deduction from wages, which are quicker and cheaper than civil court. Tribunal claims can be brought up to 2 years after the underpayment occurred.

8. Real Living Wage

The Real Living Wage is a voluntary higher rate calculated annually by the Living Wage Foundationbased on what workers need to meet the actual cost of living. It is independent of the government's NLW.

2024/25 Real Living Wage rates:

Over 15,000 employers — including IKEA, Nationwide, Lush, and many local authorities — have voluntarily accredited with the Living Wage Foundation. Accredited employers commit to implement rate increases within 6 months of the annual announcement (typically in November). The Real Living Wage applies to all workers, including those employed by contractors and subcontractors on the employer's premises (supply chain commitment).

9. Zero-Hours Contracts

Workers on zero-hours contracts are entitled to NMW/NLW for all hours worked. Common pitfalls:

• Failure to pay for travel between jobs — zero-hours workers sent to multiple locations in a day must be paid NMW for travel time between assignments (but not for home-to-first-assignment travel)
• Unpaid training — mandatory training (e.g. food hygiene, manual handling inductions) is working time and must be paid at NMW
• Trial shifts — unpaid trial shifts for zero-hours or casual workers are unlawful unless they are genuinely observational and involve no actual work

The Workers (Flexible Working) Act 2023and subsequent Statutory Code of Practice gave zero-hours workers the right to request predictable working patterns. From 2024, workers with at least 26 weeks' service can request a more predictable contract. Employers must handle requests within 1 month and provide written reasons for any refusal.

A further right — to request guaranteed hours after a 12-week reference period — was introduced by the Employment Rights Bill 2024–25, which is expected to receive Royal Assent in 2025.

10. Keeping Records

Employers must keep adequate NMW records to show compliance. HMRC can request these records going back up to 6 years. Records should include:

• Gross pay for each pay reference period
• Hours worked (particularly important for time workers and output workers)
• Any deductions made and their nature
• Accommodation offset calculations if applicable
• Age confirmation for workers (to apply the correct rate)
• Apprenticeship agreement details for apprentices

Payslip obligations: All workers (not just employees) are entitled to an itemised payslip under the Employment Rights Act 1996 (as amended in 2019). Payslips for workers paid variably by hours must show the hours worked. Failure to provide payslips is a separate unlawful deduction claim risk.

Keep pay records for at least 3 years after the pay reference period ends. HMRC inspectors may ask for records going back further where specific complaints are made.

NMW compliance checklist

Frequently Asked Questions

What is the National Living Wage rate from April 2025?

From 1 April 2025 the NLW for workers aged 21 and over is £12.21/hour. Workers aged 18–20 receive £10.00/hour, and workers aged 16–17 and apprentices receive £7.55/hour.

Can deductions for uniforms or tools reduce a worker's pay below NMW?

Yes. Deductions for mandatory uniforms, tools, and accommodation above the offset rate all reduce NMW pay for calculation purposes, even if the worker's net cash pay appears above NMW.

Are sleep-in shifts at a care home paid at the minimum wage?

No — following Royal Mencap v Tomlinson-Blake [2021] UKSC 8, workers permitted to sleep during sleep-in shifts are not entitled to NMW for sleeping hours. NMW applies only to hours when they are actually awake and working.

What happens if HMRC finds my business has underpaid NMW?

HMRC will issue a Notice of Underpayment requiring back-payment at current rates plus a penalty of 200% of arrears (up to £20,000 per worker), and may name the employer on the government's public naming scheme.

Is the Real Living Wage legally binding?

No. The Real Living Wage (£12.60 UK / £13.85 London in 2024/25) is a voluntary rate set by the Living Wage Foundation. Accredited employers commit to pay it, but it has no legal enforceability beyond contractual commitments.