Last Updated – 20-10-2026

HMRC wage raid payroll checks have become an important topic for UK employers in 2026, particularly as minimum-wage rates increase and the government strengthens its enforcement of employment rights.

Businesses are facing closer scrutiny of how they calculate employee wages, record working hours, deduct taxes and submit payroll information.

Even minor mistakes involving unpaid training, incorrect deductions or outdated wage rates can lead to financial liabilities.

The introduction of the Fair Work Agency in April 2026 has also brought changes to minimum-wage enforcement. However, the term “wage raid” does not describe a newly introduced statutory HMRC inspection scheme.

For business owners, understanding how payroll investigations work is essential.

This guide explains what HMRC wage raid payroll checks involve, why employers may be investigated, the potential penalties and the practical steps businesses can take to remain compliant.

What Are HMRC Wage Raid Payroll Checks?

HMRC wage raid payroll checks are an informal term used to describe investigations into an employer’s payroll records, tax reporting and minimum-wage compliance.

These investigations help enforcement officers establish whether businesses are meeting their legal responsibilities when paying employees.

HMRC may examine PAYE deductions, National Insurance contributions, payroll submissions and supporting accounting information.

Minimum-wage investigations focus on whether workers receive the correct statutory pay for their working hours.

The types of records that may be reviewed include:

• Employee payslips and payroll summaries.
• PAYE and National Insurance calculations.
• Real Time Information (RTI) submissions.
• Employment contracts and payment arrangements.
• Timesheets, overtime and training records.
• Payroll deductions and employee expenses.
• Evidence of National Minimum Wage compliance.

Not all investigations involve surprise visits. Some begin with correspondence requesting information, while others involve arranged workplace inspections.

A payroll investigation does not automatically mean an employer has deliberately broken the law.

Compliance officers may investigate suspected errors, employee complaints or discrepancies identified through information available to enforcement authorities.

Why Are HMRC Wage Raid Payroll Checks Receiving Attention in 2026?

Payroll compliance has received greater attention in 2026 because of changes to employment enforcement, higher statutory wage rates and continued government action against employers who underpay workers.

The Fair Work Agency became operational on 7 April 2026, bringing several existing labour-market enforcement functions together.

At the same time, the National Living Wage increased to £12.71 per hour for eligible workers aged 21 and over.

Businesses that failed to update their payroll systems from April 2026 could therefore have created underpayments without realising it.

Government enforcement figures demonstrate the consequences of payroll non-compliance.

On 3 September 2026, the government announced that nearly 660 employers had been named for failing to pay the National Minimum Wage.

The announcement reported:

• Approximately 660 employers named for minimum-wage breaches.
• Around £4 million repaid to affected employees.
• Approximately 27,000 workers receiving unpaid wages.
• Around £7 million in financial penalties.

These figures relate to an enforcement naming round rather than a count of workplace raids.

They demonstrate the financial consequences of wage breaches but do not establish that surprise payroll visits have increased by a particular percentage.

For employers, the main concern is whether existing payroll systems can accurately apply wage rates, calculate deductions and retain appropriate records.

Businesses planning future employment costs should also consider potential minimum wage increases in 2027 when forecasting staffing expenses.

How Has the Fair Work Agency Changed Payroll Enforcement?

The Fair Work Agency (FWA) was established on 7 April 2026 as part of the government’s wider employment-rights enforcement reforms.

It brought together functions previously carried out by several organisations, including HMRC’s National Minimum Wage enforcement unit and the Employment Agency Standards Inspectorate.

The agency’s responsibilities cover minimum-wage compliance, employment agency standards and certain forms of labour exploitation.

Although responsibility for minimum-wage enforcement now sits within the FWA framework, HMRC officers continue to carry out relevant enforcement work through the transitional arrangements.

This means an employer may still encounter HMRC officers during a minimum-wage investigation.

The distinction matters because PAYE compliance checks and minimum-wage investigations are governed by different requirements, even where both concern employee payments.

For example, an employer might correctly deduct Income Tax and National Insurance but still fail to pay workers the legal minimum wage after accounting for unpaid hours.

Conversely, a worker may receive the correct minimum wage while the employer makes mistakes in PAYE reporting.

Both situations require attention, but the applicable enforcement procedures and penalties may differ.

What Does HMRC Check During a Payroll Inspection?

The scope of an investigation depends on whether officers are examining tax compliance, minimum-wage requirements or another payroll-related obligation.

The main areas commonly reviewed are outlined below.

Payroll area	What inspectors examine
PAYE records	Accuracy of Income Tax deductions and reported payments
National Insurance	Correct employee and employer contributions
RTI submissions	Whether payroll information was submitted accurately and on time
Minimum-wage compliance	Whether employees receive the statutory minimum
Working hours	Overtime, training, preparation time and other qualifying hours
Payroll deductions	Whether deductions reduce pay below the minimum wage
Employment records	Contracts, worker classifications and payment arrangements
Payslips	Consistency between recorded wages, deductions and actual payments

A payroll system may produce accurate payslips while still overlooking relevant working time.

For example, a restaurant employee might receive £12.71 for every recorded hour but regularly work additional unpaid time before opening.

If the additional hours count as working time under minimum-wage legislation, the employer may have underpaid the worker.

Employers should also understand how HMRC treats income that does not appear on a payslip, particularly where additional payments or taxable benefits create reporting obligations.

What Are the National Minimum Wage Rates in 2026?

The National Minimum Wage and National Living Wage increased on 1 April 2026.

Employers must apply the correct statutory hourly rate according to the worker’s age and apprenticeship status.

Employee category	Hourly rate from April 2026
Aged 21 and over	£12.71
Aged 18 to 20	£10.85
Aged 16 to 17	£8.00
Apprentice rate	£8.00

The apprentice rate generally applies to apprentices under 19 and apprentices aged 19 or over who are in the first year of their apprenticeship.

Employers should regularly review employees’ ages, apprenticeship circumstances and pay rates to ensure the correct legal minimum applies.

For official confirmation, employers can refer to the National Minimum Wage and National Living Wage rates on GOV.UK.

One important consideration is that the minimum-wage calculation involves more than comparing the contractual hourly rate with the statutory figure.

Working hours, deductions, payment arrangements and pay reference periods can all influence whether the worker receives their correct entitlement.

How Can Unpaid Working Hours Lead to a Payroll Underpayment?

A business can pay the correct advertised hourly rate and still breach minimum-wage legislation if additional qualifying working hours are not included in its calculations.

Consider a hypothetical hospitality business in London employing a 25-year-old worker in October 2026.

The employee receives £12.71 per hour and is paid for 160 recorded hours each month.

However, the worker also spends five additional hours completing compulsory pre-shift preparation.

The business has not included those additional hours in payroll.

Example: Monthly Payroll Underpayment

• Recorded working hours: 160 hours
• Actual working hours: 165 hours
• Hourly wage: £12.71
• Wages paid: 160 × £12.71 = £2,033.60
• Minimum wages owed: 165 × £12.71 = £2,097.15
• Potential wage shortfall: £63.55

The additional five hours mean the employee’s effective hourly pay is below the statutory minimum.

The employer could therefore owe £63.55 for that pay reference period, assuming there are no other relevant payments or adjustments.

If the same error affects 10 workers during a single month, the combined shortfall could reach £635.50.

If repeated across multiple pay periods, the liability could become substantially greater.

This example highlights why employers must record qualifying working time accurately rather than relying only on scheduled shifts.

What Common Payroll Mistakes Can Trigger HMRC Checks?

Several payroll errors can result in minimum-wage underpayments, incorrect tax deductions or reporting discrepancies.

Some mistakes arise from outdated payroll settings, while others occur because employers misunderstand which activities count as paid working time.

1. Unpaid Training and Preparation Time

Compulsory training and certain work-related preparation activities may count as working time for minimum-wage purposes.

For example, a retail worker required to attend a 30-minute briefing before their regular shift may be entitled to have that time included in their wage calculation.

Failing to record these hours could result in an underpayment.

2. Incorrect Uniform Deductions

Employers sometimes require workers to purchase particular clothing or uniforms.

If those purchases are required for the job and are not reimbursed, they can reduce the worker’s pay for minimum-wage purposes.

For example, an employee earning £13 per hour for a 40-hour week receives £520.

If they must spend £20 on an unreimbursed uniform during that pay reference period, their pay for minimum-wage purposes may fall to £500.

Their effective hourly rate would then be £12.50, below the 2026 National Living Wage of £12.71.

This is why employers must review compulsory uniform costs, even when staff purchase clothing directly from an external retailer.

3. Incorrect PAYE Tax Codes

Employers must use the appropriate tax codes when calculating Income Tax deductions.

An incorrect code may cause employees to pay too much or too little tax.

This can happen when HMRC issues updated information that is not correctly reflected in payroll.

Employees questioning unexpected deductions may find it useful to understand why an HMRC tax code changes before contacting their employer.

4. Late Real Time Information Submissions

Employers generally need to submit a Full Payment Submission (FPS) to HMRC on or before paying employees.

Incorrect employee details, omitted payments or repeated reporting delays can create compliance problems.

Although a late submission does not automatically result in a payroll inspection, businesses should investigate errors and correct their records promptly.

5. Incorrect Employee Classification

Different legal rules can apply depending on whether an individual is an employee, worker or genuinely self-employed.

Incorrect classification may affect payroll deductions, National Insurance, employment rights and minimum-wage entitlement.

Businesses should assess the actual working relationship rather than relying entirely on the description used in a contract.

How Do HMRC Wage Raid Payroll Checks Work?

HMRC payroll investigations and minimum-wage enforcement checks can involve several stages.

The process varies depending on the circumstances, but a typical minimum-wage investigation may follow these five steps.

Step 1: Selection for Review

Compliance officers identify a potential issue through research, worker complaints or other relevant information.

An employer may also be selected for a compliance review without an established breach.

Step 2: Initial Contact or Visit

The employer may receive a letter requesting payroll documents or arranging an inspection.

Minimum-wage officers normally try to arrange a suitable appointment when a workplace visit is necessary, although advance notice is not always required.

Step 3: Review of Payroll Evidence

Officers examine relevant payroll records, working hours, deductions and wage calculations.

Employers may need to explain discrepancies between payslips, employment contracts and timesheets.

Step 4: Discussion With Employers and Workers

Inspectors may interview employees about their actual working hours, payment arrangements and responsibilities.

This can help establish whether the information recorded in payroll reflects the work performed.

Step 5: Investigation Outcome

The investigation concludes with findings based on the available evidence.

Where minimum-wage underpayments are identified, enforcement officers may issue a formal Notice of Underpayment requiring payment of wage arrears and financial penalties.

The precise process and available enforcement powers are explained in the official National Minimum Wage checks guidance for employers.

Can HMRC Carry Out Payroll Checks Without Warning?

Yes, unannounced visits are possible where the relevant legal powers and conditions apply.

However, this does not mean every HMRC payroll investigation involves officers arriving unexpectedly at a business.

For minimum-wage investigations, officers will generally try to arrange an appointment where a visit is required.

There may nevertheless be situations where an unannounced visit is considered appropriate.

Employers should understand that enforcement officers can request relevant records, seek explanations and exercise statutory information-gathering powers.

If officers arrive at a business, management should verify their identification, establish the purpose of the inspection and contact the person responsible for payroll compliance.

Employers should not conceal, alter or destroy relevant records.

Where legal questions arise, the business may seek professional advice while complying with its statutory obligations.

How Much Can HMRC Fine Employers for Payroll Errors?

The financial consequences depend on the type of breach.

National Minimum Wage underpayments and PAYE reporting errors are subject to different enforcement rules.

For minimum-wage breaches, employers may be required to repay arrears and pay an additional financial penalty.

Under the applicable enforcement framework, penalties can amount to 200% of the minimum-wage arrears, subject to statutory limits.

The main penalty provisions include:

• A financial penalty calculated at 200% of the relevant underpayment.
• A maximum penalty of £20,000 per worker.
• A minimum financial penalty of £100 per Notice of Underpayment.
• A 50% penalty reduction where the employer fully complies with the notice within the required 14-day period.
• The right to appeal a Notice of Underpayment, normally within 28 days of service.

PAYE mistakes are assessed separately. Tax-related penalties can depend on the relevant obligation, the nature of the inaccuracy and whether the employer’s behaviour was careless or deliberate.

Example: Financial Penalty for Underpaying Staff

Suppose a UK employer has underpaid workers by £1,000, and that figure represents the arrears used for calculating the statutory penalty.

The simplified calculation would be:

Financial liability	Amount
Minimum-wage arrears	£1,000
Penalty at 200%	£2,000
Total potential liability	£3,000

If the employer qualifies for the 50% penalty reduction, the financial penalty could fall to £1,000.

In that scenario, the combined amount would be £2,000, comprising £1,000 in wage arrears and £1,000 in penalties.

The example assumes the statutory penalty calculation is applicable and that the requirements for any reduction are satisfied. Actual liabilities depend on the individual case.

For a small business, unexpected arrears and penalties can place considerable pressure on working capital.

How Long Must Employers Keep Payroll Records?

UK employers must retain sufficient payroll information to demonstrate compliance with their legal responsibilities.

The applicable retention periods differ between ordinary PAYE records and National Minimum Wage records.

Record type	General retention requirement
PAYE payroll records	At least three years after the end of the relevant tax year
National Minimum Wage records covered by current rules	At least six years under the applicable retention calculation

The six-year minimum-wage rule applies to records created from 1 April 2021 and certain earlier records that were still subject to retention requirements when the rules changed.

The exact retention period is calculated by reference to the relevant pay reference periods.

Businesses should retain records of wages, hours worked, applicable pay rates, deductions and other information needed to demonstrate compliance.

For example, an employer may have payslips showing that employees received the correct hourly rate but lack timesheets proving their actual working hours.

If an underpayment complaint later arises, missing records could make it difficult for the employer to establish whether the correct wages were paid.

Payroll documents should therefore be maintained in an organised and accessible format.

How Can UK Employers Prepare for HMRC Payroll Checks?

Preparing for a payroll inspection should be part of normal business administration rather than a last-minute exercise.

Employers can reduce compliance risks by regularly reviewing pay calculations, staff records and statutory reporting requirements.

1. Review Minimum-Wage Rates

Employers should check that employees receive at least the statutory wage applicable to their age and apprenticeship circumstances.

Payroll systems should also reflect annual wage increases and changes in employee eligibility.

2. Check Working-Time Records

Timesheets should account for qualifying working time, including compulsory training, relevant preparation activities and any other hours that must be included in minimum-wage calculations.

Managers should communicate working-time requirements clearly to payroll staff.

3. Review Payroll Deductions

Businesses should examine uniform costs, employment-related expenses and other deductions that may reduce pay for minimum-wage purposes.

A deduction being authorised in an employment contract does not automatically mean it can be ignored for minimum-wage calculations.

4. Reconcile PAYE and RTI Information

Payroll reports should be checked against the information submitted to HMRC.

Employers should investigate discrepancies involving employee earnings, tax deductions, National Insurance and payroll submission dates.

5. Maintain Supporting Documentation

Businesses should retain employment contracts, working-time records, payslips and relevant payroll calculations.

These documents can help demonstrate compliance if questions arise.

6. Review Outsourced Payroll Arrangements

Businesses using external payroll providers should confirm how compliance checks, record keeping and HMRC submissions are managed.

Outsourcing administrative tasks does not automatically transfer an employer’s legal responsibilities.

For example, businesses entering labour-intensive sectors need to consider wage compliance from the beginning.

Entrepreneurs evaluating the cost of starting a care agency in the UK should account for paid working time, employer National Insurance, pensions and training as part of their staffing budgets.

What Should Employers Do If They Discover a Payroll Mistake?

Employers who discover payroll errors should investigate them promptly rather than waiting for an official inspection.

The first step is identifying the affected employees, relevant pay reference periods and nature of the error.

If the issue involves minimum-wage underpayments, the business should determine the correct arrears and arrange payment in accordance with the applicable rules.

Where inaccurate PAYE information has been submitted, the employer may need to correct its payroll records and make the relevant submission to HMRC.

Businesses should also establish why the mistake occurred.

For example, if payroll software failed to update an employee’s minimum-wage entitlement after their birthday, the employer should correct the individual’s wages and investigate whether other workers were affected.

If the error resulted from an internal policy, such as excluding compulsory training from recorded hours, the employer should review that policy.

Where substantial arrears, complex calculations or formal enforcement notices are involved, professional tax or employment-law advice may be appropriate.

Which UK Businesses Could Be Most Exposed to Payroll Compliance Risks?

Minimum-wage and payroll obligations apply across a wide range of industries, but certain working arrangements can create additional administrative challenges.

Hospitality businesses may need to account for preparation time, training and irregular shift patterns.

Retail employers may need to review uniform costs, opening and closing duties and unpaid training.

Care providers may need to account for qualifying travel time between appointments and the way working hours are recorded.

Recruitment agencies and businesses using temporary labour may face additional questions about employment status, contractual arrangements and payroll responsibilities.

Construction businesses may also need to address employment-status questions and the interaction between payroll obligations and industry-specific tax arrangements.

However, no business should assume that it will automatically be investigated simply because it operates in a particular sector.

The important consideration is whether the employer’s actual working arrangements create a risk of inaccurate wages or payroll reporting.

Can Employers Reduce the Risk of Future Payroll Investigations?

No employer can guarantee that HMRC or another enforcement authority will never conduct a compliance check.

However, businesses can reduce the likelihood of discovering significant errors during an investigation by maintaining accurate records and reviewing payroll processes regularly.

A useful approach is to conduct periodic internal checks of employees whose hourly earnings are close to the statutory minimum.

These reviews should compare the wages paid with actual qualifying working hours and relevant deductions.

Employers should also ensure that payroll staff receive appropriate training when minimum-wage rates or employment regulations change.

Where several departments contribute to payroll data, responsibilities should be clearly defined.

For example, line managers may record working hours, human resources staff may maintain employment records, and finance teams may process payments.

If information is not shared accurately between departments, payroll errors can occur even when each team believes it has completed its responsibilities.

Consistent internal reviews can therefore help businesses identify problems before they develop into substantial wage liabilities.

FAQs About HMRC Wage Raid Payroll Checks

Are HMRC wage raids a new law in 2026?

No. “Wage raid” is an informal term rather than the name of a new law. Existing enforcement powers continue to apply, alongside the Fair Work Agency reforms introduced in April 2026.

Can HMRC inspect small businesses?

Yes. Small businesses must comply with applicable PAYE, National Insurance and minimum-wage requirements and may be selected for investigations.

Can HMRC interview employees during payroll checks?

Yes. Minimum-wage enforcement officers can seek information from workers about their wages, working hours and employment arrangements.

Can employers be fined for accidental underpayments?

Yes. Unintentional minimum-wage breaches can still result in wage arrears and statutory penalties.

What happens if an employer cannot provide payroll records?

Failure to produce required records can create legal and evidential difficulties. Deliberate obstruction or refusal to comply with lawful requests may lead to further enforcement action.

Can employers challenge an HMRC minimum-wage penalty?

Yes. Employers can generally appeal a Notice of Underpayment within 28 days of service through the appropriate tribunal procedure.