Statutory Maternity Pay UK 2026: Eligibility, Rates & How It Works

Statutory Maternity Pay (SMP) is one of the most commonly searched employment law topics in the UK. For employees, it determines whether they will receive income during maternity leave and how much they can expect to be paid. For employers, it creates a statutory financial obligation, payroll liability and a series of compliance risks that extend well beyond basic pay calculations.

While SMP is often treated as an employee entitlement issue, the legal responsibility for assessing eligibility, calculating payments, funding maternity pay upfront and managing compliance sits squarely with the employer. Errors can result in underpayment claims, discrimination exposure and reputational damage, particularly where maternity pay issues intersect with dismissal, redundancy or flexible working decisions under wider employment discrimination protections.

This guide is written for HR professionals and business owners, while remaining accessible to employees who want to understand how SMP operates in practice. It explains the statutory framework governing SMP, how entitlement is determined, how payments must be calculated and managed and what employers must do to reduce legal and operational risk. Throughout, the focus is on defensible employer decision-making, not just entitlement summaries.

What this article is about:
This is a long-form, compliance-grade guide to Statutory Maternity Pay under UK employment law. It addresses both employee entitlement and employer obligations, with particular emphasis on eligibility assessment, payroll accuracy, cost recovery, discrimination risk and common areas where employers get SMP wrong.

Section A: What is Statutory Maternity Pay and why does it matter?

One of the most common areas of confusion around Statutory Maternity Pay is when entitlement is fixed and when employer liability actually arises. This matters because eligibility for SMP is not assessed retrospectively based on later events, intentions or business decisions. Instead, it crystallises at a specific point in time under statute, and once it does, liability is difficult to unwind.

From an employee perspective, eligibility determines whether they will receive statutory pay during maternity leave. From an employer perspective, eligibility determines whether a legal obligation to pay SMP has arisen, even if the employee later resigns, is dismissed or does not return to work.

Statutory Maternity Pay is a legal entitlement set out in UK employment legislation, requiring employers to pay qualifying employees during maternity leave for up to 39 weeks. Although it is funded in large part through HMRC recovery, SMP is paid by the employer, not the state, and must be administered correctly through payroll.

From an employee perspective, SMP provides a minimum level of income during maternity leave. From an employer perspective, it represents a statutory liability that must be managed alongside wider duties relating to maternity leave, health and safety, discrimination law and contractual benefits.

Crucially, SMP is not discretionary. Where an employee meets the statutory criteria, the employer is legally obliged to pay it, regardless of business size, internal policy or financial pressure. Enhanced maternity pay may be offered contractually, but this sits on top of, not instead of, statutory obligations.

What the law requires

Under UK employment law, employers must assess whether an employee qualifies for SMP using statutory tests, calculate SMP accurately using prescribed earnings rules, pay SMP at the correct rate and for the correct duration, maintain records and evidence for HMRC inspection and avoid discrimination or unfavourable treatment linked to pregnancy or maternity.

These duties apply even where the employee later resigns, is dismissed or does not intend to return to work, provided statutory conditions are met.

Why SMP is a compliance and risk issue for employers

SMP is closely linked to some of the highest-risk areas of employment law. Errors commonly arise where employers misjudge eligibility around the qualifying week, calculate average weekly earnings incorrectly, start or stop SMP at the wrong time, mishandle keeping-in-touch (KIT) days or early returns to work or fail to separate maternity pay decisions from redundancy or performance processes.

Because maternity protection is reinforced by the Equality Act 2010, SMP errors often escalate beyond pay disputes into discrimination claims, where compensation is uncapped.

In addition, HMRC can refuse recovery of SMP where records are incomplete or calculations are incorrect, leaving employers to absorb the full cost.

Section A summary

Statutory Maternity Pay is not simply a payroll function or an employee benefit. It is a statutory obligation with financial, legal and reputational consequences. Employers must understand not only what SMP is, but how it fits into the wider maternity framework and where mistakes commonly expose the business to risk.

Section B: Who qualifies for Statutory Maternity Pay and when does employer liability arise?

One of the most common areas of confusion around Statutory Maternity Pay is when entitlement is fixed and when employer liability actually arises. This matters because eligibility for SMP is not assessed retrospectively based on later events, intentions or business decisions. Instead, entitlement crystallises at a specific point in time under statute, and once it does, liability is difficult to unwind.

From an employee perspective, eligibility determines whether they will receive statutory pay during maternity leave. From an employer perspective, eligibility determines whether a legal obligation to pay SMP has arisen, even if the employee later resigns, is dismissed or does not return to work.

Who can qualify for Statutory Maternity Pay?

Statutory Maternity Pay is available only to individuals who are legally classed as employees for employment and National Insurance purposes. This generally includes employees working under a contract of employment and can also include office holders and directors whose earnings are treated as employment income, as well as certain agency workers who are employed earners for National Insurance purposes.

For employers, the practical risk is that eligibility disputes often start with employment status. If someone is incorrectly treated as self-employed or as outside the SMP framework, the business can face arrears, payroll corrections and a wider maternity-related dispute that quickly becomes contentious.

The qualifying week and continuous employment test

The cornerstone of SMP eligibility is the qualifying week, defined as the 15th week before the Expected Week of Childbirth (EWC). To qualify, the employee must have been continuously employed for at least 26 weeks ending with the qualifying week. The 26-week period must include at least one day of employment in the qualifying week itself.

This timing point is critical for employers because entitlement is assessed by reference to the qualifying week. Once eligibility conditions are met at that point, later changes such as resignation, dismissal, changes to working patterns or a decision not to return to work do not usually remove SMP entitlement.

Earnings threshold and average weekly earnings

In addition to length of service, the employee must have average weekly earnings at or above the Lower Earnings Limit for National Insurance purposes. Average weekly earnings are calculated using the statutory reference period rules, based on earnings paid in the prescribed period ending with the last normal payday before the end of the qualifying week.

For employers, earnings assessments are a common fault line in disputes, particularly where pay is variable, bonuses are paid irregularly, commission is involved or payroll uses simplified “two-month” approximations rather than the statutory approach.

Pregnancy status, notice and evidence

To qualify for SMP, the employee must be pregnant at the relevant point in the statutory framework (in practice, assessed by reference to the qualifying week) or have already given birth. The employee must also give the employer at least 28 days’ notice of the date she intends SMP to start, unless it is not reasonably practicable to do so, and provide medical evidence of the pregnancy and EWC, usually a MATB1 certificate.

From an employer risk perspective, missing or poorly handled evidence and notice tends to create avoidable payroll errors, delayed payments and disputes that can spill into wider maternity rights issues.

What happens if employment ends?

A common misconception is that SMP only applies if the employee remains employed throughout maternity leave. Where an employee qualifies by the end of the qualifying week, SMP usually remains payable even if the employee resigns or is dismissed for a lawful reason after that point. The compliance risk for employers is highest where dismissal decisions are taken during pregnancy or maternity-related absence, particularly where the absence is pregnancy-related, because this is often where disputes escalate into discrimination allegations.

Employers should also be cautious about any approach that could be construed as attempting to avoid SMP liability. Aside from pay arrears, that type of fact pattern creates significant exposure under discrimination law and unfair dismissal principles.

Section B summary

Eligibility for Statutory Maternity Pay is determined by employment status, continuous employment and earnings at a fixed statutory point. For employers, the qualifying week is the critical compliance milestone, because once eligibility is established at that stage, liability is largely locked in. Robust early checks, accurate earnings calculations and clear evidence handling materially reduce pay disputes, enforcement risk and wider maternity-related claims.

Section C: How is Statutory Maternity Pay calculated and what are the most common payroll errors?

Calculating Statutory Maternity Pay correctly is one of the most technically demanding aspects of maternity compliance. While the statutory rates themselves are fixed, errors frequently arise in the identification of the correct reference period, the treatment of variable pay and the handling of pay increases. For employers, these errors can result in underpayment claims, loss of HMRC recovery and wider legal exposure.

For employees, miscalculations can materially affect income during maternity leave. For employers, they often expose weaknesses in payroll controls and create evidential problems if calculations are later challenged.

The statutory reference period for SMP

SMP is calculated using the employee’s average weekly earnings over a fixed statutory reference period. This is defined as the eight-week period ending with the last normal payday before the end of the qualifying week.

This rule applies regardless of pay frequency. There is no separate method for monthly-paid employees. All earnings paid during the eight-week reference period are added together and divided by the number of weeks to produce the average weekly earnings figure.

Employers frequently make errors by using a convenient “two-month” snapshot or selecting the wrong payday. These shortcuts do not comply with the statutory framework and are a common reason for SMP underpayments.

What counts as earnings for SMP purposes?

For SMP calculation purposes, earnings include all amounts that are subject to Class 1 National Insurance contributions. This typically includes basic pay, overtime (whether contractual or voluntary), commission and bonuses or incentive payments.

Non-cash benefits, such as company cars, mobile phones or private medical insurance, are not included in earnings for SMP calculations. Employers should be careful where remuneration structures involve mixed cash and non-cash elements, as incorrect inclusion or exclusion can distort the average weekly earnings figure.

Applying the statutory SMP rates

Once average weekly earnings have been established, SMP is payable as follows:

• the first six weeks at 90% of the employee’s average weekly earnings; and
• the following 33 weeks at the lower of the statutory flat rate or 90% of average weekly earnings.

SMP is payable for a maximum of 39 weeks. The remaining 13 weeks of statutory maternity leave are unpaid unless enhanced maternity pay is provided under contract.

From an employer perspective, payroll systems must be able to apply the correct rate at the correct point in the SMP period, particularly where enhanced maternity pay operates alongside statutory pay.

Pay rises during maternity leave

If an employee receives a pay rise that takes effect after the start of the statutory reference period but before the end of her statutory maternity leave, SMP must be recalculated as if the pay rise had applied throughout the reference period.

This requirement is frequently overlooked. Employers who fail to recalculate SMP following a pay increase risk underpayment claims and HMRC challenge, even where the pay rise was awarded after maternity leave had already begun.

Common payroll errors and risk points

Employers most commonly miscalculate SMP where they select the wrong reference period, exclude variable pay that should have been included, fail to recalculate SMP after a pay rise or assume that monthly-paid employees are subject to different rules.

These errors rarely occur in isolation. They often arise alongside other maternity-related decisions, such as flexible working discussions or redundancy planning, increasing the likelihood that a pay dispute escalates into a broader legal claim.

Section C summary

SMP calculations are governed by strict statutory rules that leave little room for discretion. Employers must identify the correct reference period, include all qualifying earnings subject to Class 1 National Insurance and adjust payments where required. Robust payroll processes and early verification are essential to avoid underpayment, loss of recovery and wider compliance risk.

Section D: How much does Statutory Maternity Pay cost employers and what can be reclaimed from HMRC?

Although Statutory Maternity Pay is often described as a government-backed entitlement, the financial obligation initially sits with the employer. SMP must be paid through payroll in the same way as wages or salary, before any recovery is made from HM Revenue & Customs. For employers, this makes SMP both a cost management and cashflow issue, rather than a purely administrative task.

For employees, the mechanics of funding are largely invisible. For employers, failure to understand the cost structure of SMP can lead to budgeting errors, delayed payments and difficulties recovering statutory sums.

What employers are required to pay

Once an employee qualifies, the employer must pay Statutory Maternity Pay for up to 39 weeks at the statutory rates:

• the first six weeks at 90% of the employee’s average weekly earnings; and
• the following 33 weeks at the lower of the statutory flat rate or 90% of average weekly earnings.

SMP is treated as taxable income and is subject to income tax and National Insurance deductions in the same way as normal earnings.

Employers cannot lawfully withhold or reduce SMP because an employee does not intend to return to work, because the business is experiencing financial pressure or because the employee is dismissed after the qualifying week. Attempting to do so commonly results in claims for unlawful deduction of wages and discrimination.

HMRC recovery and Small Employers’ Relief

Most employers are entitled to reclaim 92% of the Statutory Maternity Pay they pay from HMRC. This recovery is usually offset against the employer’s PAYE and National Insurance liabilities.

Employers with a low overall National Insurance liability may qualify for Small Employers’ Relief, allowing them to reclaim 103% of SMP paid. Eligibility depends on the employer’s total Class 1 National Insurance contributions in the relevant tax year, rather than workforce size or headcount.

From a compliance perspective, employers must retain accurate records of SMP calculations, payments and recovery claims. HMRC can refuse recovery where records are incomplete or calculations cannot be substantiated.

Cashflow and operational impact

Although SMP is largely recoverable, employers must fund payments upfront. For small and medium-sized businesses, this can create short-term cashflow pressure, particularly where multiple employees take maternity leave in close succession.

This reinforces the importance of forecasting maternity-related costs, understanding recovery eligibility and coordinating HR, payroll and finance teams to avoid late payments or recovery delays.

Interaction with enhanced maternity pay

Where an employer offers enhanced maternity pay under a contractual policy, Statutory Maternity Pay is usually offset against the enhanced amount rather than paid in addition. This means SMP forms part of the overall maternity pay package.

However, this depends on clear policy drafting. Poorly worded maternity policies can result in employers inadvertently paying enhanced maternity pay on top of SMP, increasing costs and creating inequality risks.

Section D summary

Statutory Maternity Pay represents a real financial obligation for employers, even though most of the cost is recoverable from HMRC. Employers must fund payments upfront, apply recovery rules correctly and manage the interaction between statutory and contractual pay. Treating SMP as a cost and compliance issue, rather than a payroll afterthought, is essential for effective workforce planning.

Section E: When does Statutory Maternity Pay start and what events can change the start date?

The start date of Statutory Maternity Pay is a frequent source of error. Employers often assume that SMP begins automatically at a fixed point before the baby is due. In reality, the statutory framework sets clear limits on when SMP can start, but the actual start date depends on employee notice and specific triggering events.

For employees, the SMP start date determines when pay begins. For employers, it determines when statutory liability arises and how payroll must be adjusted. Getting this wrong commonly results in underpayment, overpayment or disputes that require retrospective correction.

The earliest date SMP can start

SMP cannot start earlier than the beginning of the 11th week before the Expected Week of Childbirth (EWC). This is often misunderstood as an automatic start point. It is not.

In most cases, SMP starts on the same date as maternity leave, which is chosen by the employee and notified to the employer. Employers should not assume SMP begins at the 11-week point unless the employee has indicated that date as the start of her maternity leave.

Employee notice and chosen start date

An employee must give at least 28 days’ notice of the date she intends her SMP to start, unless it is not reasonably practicable to do so. That date will normally determine the start of maternity leave and SMP.

From an employer compliance perspective, it is important to confirm the SMP start date in writing and ensure payroll systems reflect it accurately. Unclear or undocumented start dates are a common source of dispute.

Automatic triggers that bring SMP forward

There are circumstances where SMP will start automatically, regardless of the employee’s chosen start date.

SMP will start automatically if the employee:

• gives birth before maternity leave has started; or
• is absent from work wholly or partly because of pregnancy or childbirth on any day during the four weeks before the EWC.

In these situations, maternity leave and SMP begin on the day following the first day of absence or the day after the birth, as applicable. Employers must correctly identify the reason for absence in this period, as treating pregnancy-related sickness as ordinary sickness can delay SMP unlawfully.

Premature birth

If a baby is born prematurely, SMP starts on the day following the birth, even if this is earlier than the employee’s planned maternity leave start date.

From an employer perspective, this requires prompt communication between HR and payroll to ensure payments start on time. Delays or incorrect start dates in premature birth cases are a common cause of complaints.

Employment ending before SMP starts

If an employee leaves employment after the qualifying week but before SMP has started, SMP will generally still become payable from the appropriate statutory start date.

This often surprises employers. Even where employment has ended, SMP liability can still arise if entitlement was established at the qualifying week. Mishandling this scenario can result in underpayment claims and HMRC recovery issues.

Section E summary

The start of Statutory Maternity Pay is governed by statutory rules rather than assumptions or payroll conventions. Employers must distinguish between the earliest possible start date, the employee’s chosen start date and events that trigger SMP automatically. Accurate identification of the SMP start date is essential to avoid payment errors and compliance risk.

Section F: When does Statutory Maternity Pay stop and how do returns to work affect entitlement?

Understanding when Statutory Maternity Pay lawfully stops is as important as knowing when it starts. Employers frequently assume that SMP ends automatically when an employee resigns, is dismissed or returns to work. In practice, the statutory stopping rules are narrow, and misapplying them can result in unlawful deductions, discrimination claims and HMRC recovery challenges.

For employees, this section clarifies when pay will cease. For employers, it sets out the limited circumstances in which SMP can lawfully be brought to an end.

The normal end of Statutory Maternity Pay

SMP is payable for a maximum of 39 weeks. Where no statutory stopping event occurs, entitlement ends automatically at the conclusion of that 39-week period.

The final 13 weeks of statutory maternity leave are unpaid unless enhanced maternity pay applies under contract.

Returning to work during the SMP period

SMP stops if the employee returns to work for the employer before the end of the 39-week SMP period, other than for permitted Keeping in Touch (KIT) days.

A return to work for these purposes means resuming normal duties outside the KIT framework. Employers should take care to distinguish between a permanent return to work and isolated KIT activity, as confusing the two is a common source of payment errors.

If an employee returns to work early and subsequently becomes unwell again before the end of the SMP period, SMP may become payable again rather than Statutory Sick Pay, but only for any remaining part of the SMP entitlement period. Once SMP entitlement has been exhausted, Statutory Sick Pay rules apply.

Working for another employer

SMP stops if the employee starts work for a different employer after the birth of the child. This reflects the statutory principle that SMP supports absence from work following childbirth and cannot be paid alongside employment with a new employer.

Employers are entitled to ask employees to notify them if they start work elsewhere during the SMP period, and this requirement should be reflected clearly in maternity policies.

Resignation or dismissal during maternity leave

A common misconception is that SMP ends automatically when employment ends. Where an employee qualifies for SMP by the end of the qualifying week, SMP will usually continue for the full 39-week period even if the employee resigns or is dismissed for a lawful reason after that point.

The key exception is where employment ends before the qualifying week, in which case SMP entitlement may never arise. Employers who attempt to end SMP early following resignation or dismissal after the qualifying week expose themselves to claims for unlawful deduction of wages and maternity discrimination.

Other circumstances where SMP stops

SMP will stop early if the employee dies or is taken into custody or sent to prison. These are limited statutory exceptions and should be applied strictly.

Section F summary

Statutory Maternity Pay does not end simply because employment ends or circumstances change. Employers can only stop SMP in defined statutory situations. Misunderstanding return-to-work rules, resignation or dismissal during maternity leave is a common cause of unlawful deductions and discrimination claims.

Section G: How do Keeping in Touch (KIT) days affect Statutory Maternity Pay and employer obligations?

Keeping in Touch (KIT) days are designed to allow limited work during maternity leave without bringing Statutory Maternity Pay or maternity leave to an end. In practice, KIT days are one of the most frequently misunderstood aspects of maternity compliance and a common source of payroll disputes and discrimination claims.

For employees, KIT days can help maintain skills and ease a return to work. For employers, they require careful planning, clear agreement and accurate payroll treatment to avoid unintentionally ending SMP entitlement.

What counts as a KIT day?

An employee on maternity leave may work up to 10 KIT days without ending her maternity leave or SMP entitlement. Any day on which the employee carries out work for the employer counts as a KIT day, regardless of how little work is performed. Attending a meeting, undertaking training or responding to work tasks can each amount to a full KIT day.

Employers cannot require an employee to work KIT days, and employees cannot insist on working them. KIT days must be agreed by both parties.

How KIT days interact with Statutory Maternity Pay

Working a KIT day does not automatically end SMP. SMP remains payable during weeks in which KIT days are worked, provided the employee does not exceed the statutory maximum of 10 KIT days and does not otherwise return to work.

However, pay received for KIT days interacts directly with SMP. Any contractual remuneration paid for a KIT day is offset against SMP for that week. Where contractual pay exceeds the SMP amount payable for that week, SMP is reduced to nil for that week only.

This creates a practical risk point. If employers pay a full normal day’s pay for a KIT day without considering the offset, employees may unexpectedly lose SMP for that week. Clear agreement on pay treatment is therefore essential.

Exceeding the KIT day limit

If an employee works more than 10 KIT days, maternity leave comes to an end and SMP entitlement stops. Employers should monitor KIT days carefully and ensure that managers understand that even minimal work beyond the statutory limit has legal consequences.

Reasonable contact during maternity leave

Separate from KIT days, employers are permitted to maintain reasonable contact with employees during maternity leave. Reasonable contact can include discussions about return-to-work arrangements, organisational changes, training opportunities or consultation during a redundancy process.

Reasonable contact does not count as work and does not affect SMP entitlement. However, employers must ensure that contact does not drift into productive work unless it is clearly agreed and treated as a KIT day.

Discrimination risks associated with KIT days

Pregnancy and maternity are protected characteristics under the Equality Act 2010. Employers must not subject employees to detriment because they refuse to work KIT days or are unable to participate. Pressuring employees to work, penalising refusal or inconsistently offering KIT opportunities can all give rise to discrimination claims.

Section G summary

KIT days can support business continuity and employee engagement when managed correctly. Employers must treat KIT days as voluntary, document agreements clearly and understand how pay offsets interact with SMP. Poorly managed KIT arrangements are a common trigger for payroll disputes and maternity discrimination claims.

Section H: What wider legal obligations do employers have during maternity leave?

Statutory Maternity Pay operates within a wider legal framework that governs pregnancy, maternity leave, health and safety and discrimination. Employers who treat SMP as a standalone payroll issue often overlook additional statutory duties that apply once pregnancy is known, increasing the risk of tribunal claims even where maternity pay itself has been handled correctly.

For employees, these obligations provide protection for health, safety and fair treatment. For employers, they impose ongoing legal duties that apply regardless of length of service, pay entitlement or contractual status.

Pregnancy notification and legal protection

An employee is not required to inform her employer that she is pregnant until the 15th week before the Expected Week of Childbirth, unless she wishes to start maternity leave earlier. However, employers must understand an important legal distinction.

Certain rights, such as paid time off for antenatal care and statutory maternity leave, depend on notification. By contrast, protection from unfavourable treatment and dismissal because of pregnancy or maternity applies from the point at which the employer knows, or ought reasonably to know, that the employee is pregnant.

Employers cannot rely on a lack of formal notice to justify decisions that disadvantage an employee because of pregnancy or pregnancy-related illness.

Health and safety duties for pregnant employees

Once an employer is aware that an employee is pregnant, has given birth within the previous six months or is breastfeeding, there is a legal duty to assess workplace risks to the employee and her baby.

Where risks are identified, employers must take steps in a defined order. They must first alter working conditions or hours to remove the risk. If that is not reasonable or does not remove the risk, they must offer suitable alternative work on terms that are not substantially less favourable. Where no suitable alternative work is available, or the employee reasonably refuses it, the employer must suspend the employee on full pay.

These duties apply regardless of length of service or eligibility for Statutory Maternity Pay.

Time off for antenatal care

Pregnant employees are entitled to reasonable paid time off during working hours to attend antenatal appointments, including medical examinations and recommended antenatal classes.

This entitlement applies regardless of hours worked or length of service and must be paid at the employee’s normal rate of pay. Employers may request evidence of appointments after the first visit, but unreasonable demands for proof can themselves create legal risk.

Protection from unfavourable treatment and dismissal

Pregnancy and maternity are protected characteristics under the Equality Act 2010. Employers must not subject employees to unfavourable treatment because of pregnancy, pregnancy-related illness, maternity leave or the exercise of maternity rights.

Dismissal for a reason connected to pregnancy or maternity is automatically unfair and discriminatory. There is no qualifying service requirement and compensation is uncapped. Employers must therefore handle performance management, redundancy selection and restructuring decisions involving pregnant employees or those on maternity leave with particular care and robust evidence.

Section H summary

Statutory Maternity Pay sits within a broader framework of legal obligations that apply once pregnancy is known. Health and safety duties, paid time off for antenatal care and protection from discrimination operate independently of SMP entitlement. Employers who focus narrowly on maternity pay risk overlooking wider duties that carry significant legal exposure.

Section I: What benefits and contractual rights must continue during maternity leave?

One of the most frequent sources of dispute during maternity leave concerns contractual benefits rather than pay. Employers sometimes assume that because an employee is not actively working, most benefits can be suspended. UK employment law takes a different approach, drawing a clear distinction between remuneration, which can generally be paused, and non-cash benefits, which usually must continue.

For employees, this affects continuity of terms and financial security. For employers, errors in this area commonly lead to breach of contract and maternity discrimination claims, particularly where benefits are withdrawn inconsistently or without legal justification.

The statutory position on terms and conditions during maternity leave

During both Ordinary Maternity Leave (OML) and Additional Maternity Leave (AML), an employee is entitled to the benefit of all the terms and conditions of employment that would have applied if she had not been absent, with the exception of remuneration.

Remuneration is narrowly defined as sums payable by way of wages or salary. Most other contractual benefits fall outside this definition and must therefore continue throughout maternity leave.

This rule applies equally during OML and AML. Employers who assume that benefits can be reduced or withdrawn during AML expose themselves to legal challenge.

Benefits that must usually continue

Non-cash benefits that will normally need to continue during maternity leave include:

• company cars, where private use is permitted;
• mobile phones, laptops and similar work equipment;
• private medical insurance;
• life assurance and death-in-service benefits;
• permanent health insurance arrangements.

From an employer compliance perspective, the key question is whether the benefit would ordinarily continue if the employee were actively employed. If the answer is yes, it is likely to need to continue during maternity leave.

Cash allowances and salary sacrifice arrangements

Cash allowances require careful analysis. Where an allowance is paid in cash, such as a car allowance, it is more likely to be classed as remuneration and may be lawfully suspended during maternity leave.

By contrast, benefits provided through salary sacrifice arrangements may need to continue, depending on their structure and purpose. Employers should approach these arrangements cautiously, as incorrect withdrawal can give rise to claims of unfavourable treatment linked to maternity leave.

Childcare vouchers and similar schemes

Where applicable, childcare voucher schemes and similar legacy arrangements can create additional complexity. Childcare vouchers are generally treated as non-cash benefits rather than remuneration and are therefore likely to need to continue during maternity leave, including periods of unpaid leave, subject to the terms of the scheme.

HMRC guidance on statutory maternity leave and salary sacrifice supports this approach. Employers who suspend vouchers without careful analysis risk breach of contract and discrimination claims.

Holiday accrual during maternity leave

Statutory holiday entitlement continues to accrue throughout the entire period of maternity leave, including both Ordinary and Additional Maternity Leave.

Employers must ensure that employees are able to take accrued holiday either before or after maternity leave and should factor holiday accrual into return-to-work planning. Failure to account for holiday accrual often leads to disputes when maternity leave ends or employment terminates.

Section I summary

Maternity leave does not suspend the employment contract. With the exception of wages and salary, most contractual benefits must continue throughout maternity leave. Employers who withdraw benefits incorrectly risk breach of contract and maternity discrimination claims, making clear policies and careful benefit analysis essential.

Section J: What rights does an employee have when returning to work after maternity leave?

An employee’s right to return to work following maternity leave is one of the most strongly protected aspects of UK employment law. For employees, it provides assurance that maternity leave will not undermine their role or career progression. For employers, return-to-work decisions represent a high-risk compliance point, where mistakes frequently lead to automatic unfair dismissal and maternity discrimination claims.

Understanding precisely what role must be offered back, and on what terms, is essential for lawful and defensible employer decision-making.

Returning after Ordinary Maternity Leave (OML)

Where an employee returns to work after taking Ordinary Maternity Leave only, she is entitled to return to the same job she held before maternity leave.

This means the same role, duties, seniority and contractual terms and conditions. Her terms must be no less favourable than if she had not been absent, including entitlement to any pay rises, promotions or contractual improvements that applied to her role during her absence.

The only exception is where a genuine redundancy situation has arisen that would have affected her role even if she had not taken maternity leave. Even then, additional protections apply.

Returning after Additional Maternity Leave (AML)

Where an employee returns after taking any period of Additional Maternity Leave, the default position remains that she is entitled to return to the same job on the same terms and conditions.

However, if it is not reasonably practicable for the employer to allow her to return to the same job for a reason other than redundancy, such as a genuine reorganisation, the employer may offer a suitable alternative role.

Any alternative role must be appropriate in the circumstances and must carry terms and conditions that are no less favourable than those that would have applied had the employee not been absent.

Employers often misinterpret “not reasonably practicable” as meaning inconvenient or commercially undesirable. The threshold is high and must be objectively justified.

Redundancy during maternity leave

Where a redundancy situation arises during maternity leave, the employee benefits from enhanced statutory protection. If her role is redundant, she must be offered any suitable alternative vacancy in preference to other employees.

This is not a competitive process. Failure to offer a suitable vacancy where one exists will usually result in automatic unfair dismissal.

Employers planning restructures that affect employees on maternity leave must proceed with particular care, as failures in consultation or vacancy identification frequently lead to successful claims.

Flexible working on return from maternity leave

Returning from maternity leave often coincides with a request for flexible working. Employers are not required to agree to every request, but they must consider requests in line with statutory flexible working rules and avoid assumptions about availability or commitment.

Refusing flexible working requests without proper consideration, or treating maternity returners less favourably than other employees, can give rise to indirect sex discrimination claims.

Section J summary

An employee’s right to return to work after maternity leave is heavily protected by statute. Employers must understand the distinction between OML and AML, apply redundancy protections correctly and approach alternative roles and flexible working requests with care. Poorly handled return-to-work decisions are a common trigger for automatic unfair dismissal and discrimination claims.

Section K: How does contractual maternity pay interact with Statutory Maternity Pay?

Many employers offer enhanced or contractual maternity pay in addition to statutory entitlements as part of their benefits package. While this can support retention and employee wellbeing, it also introduces additional legal and financial complexity. Employers must ensure that any contractual maternity pay operates lawfully alongside Statutory Maternity Pay and does not create unintended cost or discrimination risk.

For employees, contractual maternity pay may increase income during maternity leave. For employers, it raises important questions about how SMP is treated within the overall pay package and how policies should be drafted and applied.

The relationship between SMP and contractual maternity pay

Statutory Maternity Pay sets the minimum legal entitlement. Where an employer provides enhanced maternity pay, SMP is normally treated as forming part of that enhanced payment rather than being paid on top of it.

In practical terms, this means the employer pays maternity pay at the enhanced contractual rate and offsets SMP against that amount. This avoids double payment and ensures that statutory obligations are met.

However, this position depends on clear policy wording. Where maternity policies or contracts do not expressly state that SMP is included within enhanced maternity pay, employers may find themselves required to pay enhanced maternity pay in addition to SMP.

Policy drafting and consistency risks

Enhanced maternity pay schemes must be drafted and applied carefully. Employers should ensure that eligibility criteria are clearly defined, that the interaction between SMP and contractual pay is explicit and that the scheme is applied consistently across the workforce.

Inconsistent application of enhanced maternity pay can expose employers to claims under the Equality Act 2010, particularly where enhanced pay is withdrawn, reduced or applied selectively without objective justification.

Equality considerations and related leave types

Employers are not generally required to match enhanced maternity pay with the same level of enhancement for other types of family-related leave, such as shared parental leave or adoption leave. Current case law allows employers to enhance maternity pay without extending identical benefits to other leave types.

However, employers should still review maternity pay policies regularly to ensure they remain legally defensible, aligned with organisational values and consistent with evolving workforce expectations.

Cost control and strategic considerations

From a strategic HR perspective, enhanced maternity pay should be treated as a planned investment rather than an informal benefit. Employers should model the cost implications of enhanced schemes, ensure payroll systems can correctly apply offsets and review policies periodically in light of workforce demographics.

Failure to manage contractual maternity pay proactively often results in unexpected cost escalation and disputes, particularly where policies are unclear or outdated.

Section K summary

Contractual maternity pay can provide meaningful support to employees, but it must be structured carefully to operate lawfully alongside Statutory Maternity Pay. Employers should ensure that SMP is correctly offset, policies are clearly drafted and enhanced pay is applied consistently to avoid unnecessary cost and discrimination risk.

Section L: What are the most common employer mistakes with Statutory Maternity Pay?

Most disputes involving Statutory Maternity Pay do not arise from deliberate non-compliance. They arise because SMP sits across HR, payroll, finance and line management responsibilities, and errors occur where statutory rules are misunderstood, applied inconsistently or overridden by operational assumptions.

For employees, these mistakes can cause financial stress at a vulnerable time. For employers, they frequently escalate into claims for unlawful deduction of wages, maternity discrimination or HMRC recovery challenges.

Misunderstanding when SMP entitlement is fixed

A recurring error is treating SMP entitlement as something that depends on later events, such as resignation, dismissal or an employee’s intention to return to work. In law, entitlement is fixed at the qualifying week. Once the statutory conditions are met at that point, SMP liability is largely unavoidable.

Employers who delay eligibility assessments or assume that changes after the qualifying week remove liability often find themselves facing backdated payment claims.

Incorrect average weekly earnings calculations

Errors in calculating average weekly earnings are one of the most common technical failures. Typical mistakes include selecting the wrong reference period, excluding bonuses or commission that should have been included, failing to recalculate SMP after a pay rise or assuming that monthly-paid employees are subject to different calculation rules.

These errors not only result in underpayment but can also undermine HMRC recovery, as employers must be able to demonstrate that calculations were performed in accordance with statutory rules.

Starting or stopping SMP at the wrong time

Employers frequently start SMP automatically at 11 weeks before the Expected Week of Childbirth without employee notice, or stop SMP when employment ends. Both approaches are legally incorrect.

Errors also arise where pregnancy-related sickness absence close to the due date is treated as ordinary sickness, delaying the automatic start of SMP unlawfully.

Mishandling Keeping in Touch days

KIT days are often managed informally, leading to employees working without agreement, payroll offsetting errors or SMP being reduced unexpectedly. Where KIT arrangements are not documented, employers may struggle to justify why SMP was reduced or lost in a particular week.

Exceeding the statutory limit of 10 KIT days will end maternity leave and SMP entitlement, even where the work performed appears minimal.

Failing to separate SMP decisions from other employment processes

Maternity pay issues frequently arise alongside redundancy exercises, performance management or flexible working discussions. Employers who fail to ringfence SMP decisions from these processes, or who cannot evidence objective decision-making, are at heightened risk of discrimination claims.

This risk is amplified where pregnancy or maternity leave coincides with wider organisational change.

Poor record-keeping and HMRC exposure

HMRC can refuse recovery of SMP where records are incomplete or calculations cannot be substantiated. Employers who fail to retain MATB1 certificates, evidence of notice, calculation workings and payment records may be required to repay SMP already reclaimed.

Robust documentation is therefore an essential part of SMP compliance, not an administrative afterthought.

Section L summary

Most SMP disputes are avoidable. They arise where employers misunderstand when entitlement arises, miscalculate earnings, mishandle start and stop rules or fail to document decisions. Treating Statutory Maternity Pay as a cross-functional compliance issue, rather than a payroll task, is key to reducing legal and financial risk.

Statutory Maternity Pay FAQs

The following questions reflect the most common queries raised by both employers and employees and are framed to support clear decision-making and AI search retrieval.

What is Statutory Maternity Pay?

Statutory Maternity Pay (SMP) is a statutory payment that qualifying employers must pay to eligible employees during maternity leave for up to 39 weeks. It is paid through payroll and is largely recoverable from HMRC, but legal responsibility for payment and compliance rests with the employer.

Who is entitled to Statutory Maternity Pay?

An employee is entitled to SMP if she is an employee for employment and National Insurance purposes, has at least 26 weeks’ continuous employment ending with the qualifying week, earns at or above the Lower Earnings Limit for National Insurance and provides the required notice and medical evidence.

Eligibility is assessed by reference to the qualifying week and is not affected by later resignation, dismissal or changes in working arrangements.

How much is Statutory Maternity Pay?

SMP is paid as six weeks at 90% of the employee’s average weekly earnings, followed by 33 weeks at the lower of the statutory flat rate or 90% of average weekly earnings.

The remaining 13 weeks of statutory maternity leave are unpaid unless enhanced maternity pay applies under contract.

When does Statutory Maternity Pay start?

SMP normally starts on the same date as maternity leave, as notified by the employee. It cannot start earlier than the 11th week before the Expected Week of Childbirth, but may start earlier automatically where the baby is born early or the employee is absent due to pregnancy-related reasons close to the due date.

When does Statutory Maternity Pay stop?

SMP normally ends after 39 weeks. It may stop earlier if the employee returns to work outside permitted Keeping in Touch (KIT) days, starts work for another employer after the birth, dies or is taken into custody.

Resignation or dismissal after the qualifying week does not usually end SMP entitlement.

Can an employee work while receiving Statutory Maternity Pay?

An employee may work up to 10 Keeping in Touch (KIT) days during maternity leave without ending SMP. Any pay received for KIT days is offset against SMP for that week. Working beyond 10 KIT days or returning to work permanently will end SMP entitlement.

What happens if an employee does not qualify for SMP?

If an employee does not qualify for SMP, the employer must issue form SMP1 explaining the decision. The employee may be eligible for Maternity Allowance, which is paid by the state rather than the employer.

Does Statutory Maternity Pay continue if employment ends?

Yes. If an employee qualifies for SMP by the end of the qualifying week, SMP usually continues for the full 39-week period even if she resigns or is dismissed for a lawful reason.

Is Statutory Maternity Pay taxable?

Yes. SMP is treated as taxable income and is subject to income tax and National Insurance deductions through payroll.

How do employers reclaim Statutory Maternity Pay?

Employers can usually reclaim 92% of SMP paid from HMRC. Employers with low overall Class 1 National Insurance liabilities may qualify for Small Employers’ Relief, allowing recovery of 103% of SMP paid.

Section FAQs summary

Statutory Maternity Pay rules are prescriptive and leave limited scope for discretion. Clear understanding of eligibility, calculation, start and stop rules is essential for both employees and employers to avoid disputes and compliance failures.

Conclusion: Managing Statutory Maternity Pay as a compliance risk, not a payroll task

Statutory Maternity Pay is often treated as an administrative or payroll function. In reality, it is a compliance-grade legal obligation that intersects with some of the highest-risk areas of UK employment law, including discrimination, dismissal, redundancy, health and safety and HMRC enforcement.

For employees, SMP provides essential financial support during maternity leave. For employers, it creates a statutory liability that must be assessed, calculated, paid and documented correctly. Once entitlement crystallises at the qualifying week, liability is largely fixed, regardless of later changes in the employment relationship.

Employers that manage SMP effectively do so by:

• assessing eligibility accurately and early;
• applying statutory calculation rules without shortcuts;
• understanding precisely when SMP starts and stops;
• managing Keeping in Touch days and returns to work carefully;
• separating maternity pay decisions from redundancy, performance or restructuring processes; and
• maintaining robust records to support HMRC recovery.

Treating Statutory Maternity Pay as a legal compliance issue rather than a procedural task materially reduces the risk of underpayment claims, discrimination exposure and costly disputes. Clear policies, trained managers and coordinated HR and payroll processes are essential to defensible decision-making in this area.

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