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UK Maternity Pay Calculator: Complete Guide to SMP Entitlements and Calculations

Understanding your maternity pay entitlement is essential for financial planning during one of life’s most significant transitions. Whether you are expecting your first child or adding to your family, knowing exactly how much you will receive during maternity leave helps you budget effectively and make informed decisions about when to start your leave. This comprehensive guide walks you through everything you need to know about Statutory Maternity Pay in the United Kingdom, including eligibility requirements, calculation methods, important dates, and how enhanced employer schemes can boost your income during this special time.

The UK maternity pay system combines statutory entitlements with potential employer enhancements to provide financial support for up to 39 weeks. With the current Statutory Maternity Pay rate at £187.18 per week for the 2025-2026 tax year, rising to £194.32 from April 2026, understanding exactly how your payments are calculated can make a significant difference to your family finances. Our calculator helps you determine your precise entitlement based on your earnings, due date, and employment circumstances.

What is Statutory Maternity Pay and Who Qualifies

Statutory Maternity Pay represents the legal minimum payment that UK employers must provide to eligible pregnant employees during maternity leave. Unlike maternity leave entitlement, which is available to all employees regardless of length of service, SMP has specific qualifying criteria that you must meet. The system is designed to ensure pregnant women receive financial support while protecting employers through government recovery schemes.

To qualify for Statutory Maternity Pay, you must satisfy three fundamental conditions. First, you must have been continuously employed by your employer for at least 26 weeks by the end of the qualifying week, which is the 15th week before your baby is due. This effectively means you need approximately 41 weeks of continuous service by your due date. Second, your average weekly earnings in the relevant period must equal or exceed the Lower Earnings Limit of £125 per week for the 2025-2026 tax year. Third, you must still be employed during the qualifying week, even if you are on sick leave or receiving SSP. Additionally, you must provide proper notice to your employer and supply proof of pregnancy through a MATB1 certificate.

Understanding the Qualifying Week and Expected Week of Childbirth

The qualifying week and expected week of childbirth are fundamental concepts in maternity pay calculations that determine both your eligibility and payment timing. The expected week of childbirth always runs from Sunday to Saturday and contains your due date. If your due date falls on a Sunday, that Sunday marks the start of your EWC. These dates anchor all subsequent calculations for your maternity entitlements.

The qualifying week is precisely the 15th week before your expected week of childbirth. To find it, identify the Sunday that starts your EWC, then count back 15 Sundays. That Sunday begins your qualifying week, which also ends on a Saturday. This week is critical because your employer assesses your eligibility based on your employment status and earnings during this specific period. Your average weekly earnings calculation uses the eight weeks or two monthly pay periods ending with the last payday before the end of your qualifying week.

How Average Weekly Earnings Are Calculated

Your average weekly earnings form the foundation of your SMP calculation and determine both eligibility and payment amounts. The calculation uses a specific period called the relevant period, which is typically the eight weeks or two monthly pay periods ending with the last normal payday on or before the Saturday of your qualifying week. This period captures your actual earnings pattern and includes all payments subject to National Insurance contributions.

For weekly paid employees, add together all gross earnings from the eight complete weeks in the relevant period and divide by eight. For monthly paid employees, add together the gross earnings from the two monthly pay periods ending within or before the qualifying week, divide by two, multiply by twelve, then divide by 52 to convert to a weekly figure. The calculation includes regular salary, overtime, bonuses, commission, and any other payments that attract National Insurance contributions. However, benefits provided through salary sacrifice arrangements may reduce your calculated earnings, potentially affecting your SMP entitlement.

Current SMP Rates for 2025-2026 and Upcoming 2026-2027 Changes

The Statutory Maternity Pay system operates on two distinct rate tiers that apply at different stages of your maternity leave. For the current 2025-2026 tax year running from April 2025 to April 2026, the rates provide a combination of earnings-related and flat-rate payments designed to balance income replacement with affordability for employers and the government recovery system.

During the first six weeks of SMP, you receive 90 percent of your average weekly earnings with no upper limit. This earnings-related payment ensures higher earners receive proportionately higher support during the initial transition period. For the remaining 33 weeks (weeks 7 through 39), you receive either £187.18 per week or 90 percent of your average weekly earnings, whichever is lower. From April 2026, the flat rate increases to £194.32 per week, representing a 3.8 percent rise aligned with Consumer Price Index inflation to September 2025. The Lower Earnings Limit for qualification also increases from £125 to £129 per week from April 2026.

Maximum and Minimum SMP Entitlements Explained

Understanding the range of possible SMP payments helps you plan effectively for your maternity leave finances. The maximum SMP payment depends primarily on your average weekly earnings, as the first six weeks have no cap and pay 90 percent of whatever you earn. For the remaining 33 weeks, however, the flat rate caps your payment regardless of how much you earn above the threshold.

A high earner with average weekly earnings of £1,000 would receive £900 per week for the first six weeks (90 percent of £1,000), then £187.18 per week for weeks 7-39. Their total SMP over 39 weeks would be £5,400 plus £6,176.94, totaling £11,576.94. Conversely, someone earning exactly £125 per week (the minimum threshold) would receive £112.50 per week for the first six weeks, then £112.50 for the remaining 33 weeks (since 90 percent of £125 is lower than £187.18). Their total SMP would be £675 plus £3,712.50, totaling £4,387.50. If your earnings fall below £125 per week, you do not qualify for SMP but may claim Maternity Allowance through the Department for Work and Pensions.

When Maternity Pay Starts and Important Trigger Dates

The timing of your SMP payments depends on when you choose to start your maternity leave, with certain rules governing the earliest and latest possible start dates. Understanding these trigger points helps you maximize your paid leave period and plan around your specific circumstances. Your SMP typically begins on the same date as your maternity leave, though automatic triggers can override your planned start date.

The earliest you can start SMP is 11 weeks before your expected week of childbirth. You can choose any date from this point onwards as your maternity leave start date, though most women work closer to their due date to preserve paid leave for after the birth. The latest your SMP can start is the day after your baby is born, regardless of your planned start date. Additionally, if you are absent from work wholly or partly due to pregnancy-related illness within four weeks of your expected week of childbirth, your maternity leave and SMP trigger automatically from the day after your first complete day of absence.

Enhanced Maternity Pay and Employer Schemes

Many employers offer enhanced maternity pay that exceeds statutory requirements, providing additional financial security during your leave. These occupational maternity pay schemes vary significantly between organisations and often depend on your length of service. Understanding what your employer offers and how it interacts with SMP is crucial for accurate financial planning during pregnancy.

Enhanced schemes typically replace some or all of the flat-rate SMP period with full or partial salary continuation. Common structures include paying full salary for a specified number of weeks (often 12 to 26 weeks), then reverting to SMP rates for the remainder. Some employers pay an enhanced rate as a top-up above SMP, while others pay full salary inclusive of SMP. Your employment contract or company maternity policy should specify exactly what enhanced pay you will receive. Importantly, SMP payments offset any contractual maternity pay, meaning your employer does not pay both full salary and full SMP simultaneously. Instead, SMP forms part of the enhanced payment, reducing the employer’s net cost while maintaining your total income.

How SMP Affects Your Tax and National Insurance

Statutory Maternity Pay is treated as earnings for tax and National Insurance purposes, meaning deductions apply just as they would to your regular salary. Your employer processes SMP through the payroll system, applying your tax code and calculating National Insurance contributions where applicable. Understanding these deductions helps you anticipate your actual take-home pay during maternity leave.

Your employer deducts income tax from your SMP using your normal tax code, which typically includes your personal allowance. If SMP is your only income during maternity leave and falls within your personal allowance, you may pay no income tax on it. National Insurance contributions apply to SMP if it exceeds the weekly Primary Threshold of £242 for 2025-2026. Given the SMP flat rate of £187.18 is below this threshold, you will not pay employee National Insurance on the flat-rate portion. However, employer National Insurance contributions still apply, and your employer can recover most SMP costs through the HMRC payment recovery scheme.

Impact on Annual Leave During Maternity Leave

Your annual leave entitlement continues to accrue throughout the entire 52-week maternity leave period, including both paid and unpaid weeks. This statutory right ensures you do not lose holiday entitlement during extended absence, potentially resulting in substantial accrued leave to take before or after your maternity period. Understanding how to manage this accrual is important for both financial and practical planning.

Many employers allow you to take accrued annual leave immediately before starting maternity leave, effectively extending your paid time off beyond the standard SMP period. You might also attach annual leave to the end of your maternity leave, delaying your return to work while remaining on the payroll. Some employers require you to use accrued leave before a certain date or permit carrying forward more days than usual for employees returning from maternity leave. Your employer cannot require you to take annual leave during maternity leave, and you cannot be paid in lieu of holiday except on termination of employment.

What Happens If Your Job Ends During Pregnancy

Your entitlement to SMP does not automatically end if your employment terminates during pregnancy, though specific rules determine when payments continue and when they stop. The key date is the qualifying week, which acts as a boundary for protecting your SMP rights regardless of subsequent employment changes. Understanding these protections helps you navigate uncertain employment situations during pregnancy.

If your job ends before the qualifying week (15th week before EWC) for any reason, you will not qualify for SMP from that employer. If your job ends during or after the qualifying week, you remain entitled to SMP provided you met all qualifying conditions at the end of that week. Your former employer must continue paying SMP even though you no longer work for them. If you start a new job during your SMP period, your new employer has no SMP liability, and you can continue receiving SMP from your previous employer while working elsewhere. However, if you start working for the same employer who is paying your SMP, your payments stop from the week you return to work.

Maternity Allowance: The Alternative to SMP

Maternity Allowance provides financial support for pregnant women who do not qualify for Statutory Maternity Pay but have sufficient recent employment or self-employment history. Paid by the Department for Work and Pensions rather than your employer, MA offers a valuable safety net for those falling outside SMP eligibility criteria while still meeting certain work and earnings tests.

You may qualify for Maternity Allowance if you have been employed or self-employed for at least 26 weeks in the 66 weeks before your expected week of childbirth, and you earned at least £30 per week on average in any 13 of those weeks. The employment need not be continuous or with the same employer, making MA accessible to those with broken employment patterns, multiple jobs, or recent job changes. MA pays £187.18 per week for 2025-2026 (rising to £194.32 from April 2026) or 90 percent of your average weekly earnings, whichever is lower, for 39 weeks. Unlike SMP, MA has no 90 percent earnings-related period for the first six weeks.

Shared Parental Leave and Pay Considerations

Shared Parental Leave allows eligible parents to share up to 50 weeks of leave and 37 weeks of pay between them, providing flexibility in how families manage childcare responsibilities after birth. If you end your maternity leave early to opt into Shared Parental Leave, the remaining entitlement converts to a pool that either parent can access. Understanding how this interacts with SMP helps couples make informed decisions about leave arrangements.

Statutory Shared Parental Pay (ShPP) pays £187.18 per week for 2025-2026 or 90 percent of average weekly earnings, whichever is lower. There is no enhanced 90 percent period for ShPP as there is with SMP. When you curtail maternity leave, any remaining SMP weeks convert to ShPP weeks in the shared pool. Both parents must meet individual eligibility criteria for ShPP, including employment and earnings tests. The complexity of Shared Parental Leave calculations often benefits from professional HR guidance, as mistakes in notice periods or eligibility assessments can affect entitlements.

Keeping In Touch Days and Their Impact on SMP

Keeping In Touch days allow you to work for up to 10 days during your maternity leave without losing SMP entitlement, providing flexibility for both you and your employer to maintain professional connections. These days can include training, team meetings, or regular work duties and must be agreed between you and your employer, as neither party can insist on KIT day arrangements.

Payment for KIT days varies depending on your employer’s policy. Some employers pay your normal daily rate on top of SMP for that day, while others pay only the difference between your daily rate and the daily SMP amount. Your employer cannot pay less than SMP for a day when you work under a KIT arrangement. If you work more than 10 KIT days, you lose SMP for each additional day worked, though some employers offer Shared Parental Leave In Touch (SPLIT) days if you have opted into Shared Parental Leave.

Planning Your Maternity Leave Start Date

Choosing when to start maternity leave involves balancing multiple factors including your health, financial needs, job demands, and personal preferences. While you can start leave as early as 11 weeks before your due date, starting later preserves more paid leave for after the birth when you may most need the time at home with your baby.

Financial considerations often favour working as close to your due date as health permits, maximizing pre-leave income and preserving SMP weeks for the postnatal period. However, pregnancy discomfort, commuting difficulties, or physically demanding work may make earlier leave necessary. Consider whether you can work from home during late pregnancy to maintain income while reducing physical strain. Factor in annual leave that could extend your time away without using maternity leave entitlement. Your employer must allow you to change your intended start date with at least 28 days notice, providing flexibility to adjust plans as your pregnancy progresses.

What Notice You Must Give Your Employer

Providing proper notice to your employer is a qualifying condition for SMP, meaning failure to notify correctly could delay or jeopardise your payments. The notification requirements ensure employers can plan for your absence, arrange cover, and prepare payroll systems for maternity pay processing. Understanding these requirements helps avoid unnecessary complications.

You must notify your employer in writing by the end of the qualifying week (15th week before EWC) of three things: that you are pregnant, your expected week of childbirth (usually by providing your MATB1 certificate), and the date you intend to start maternity leave. If you cannot provide notice by this deadline due to circumstances beyond your control, notify as soon as reasonably practicable. Your employer must respond within 28 days, confirming your expected return date based on the full 52-week entitlement. You can change your start date with 28 days notice, and you can change your return date by giving eight weeks notice.

Self-Employed Maternity Benefits

Self-employed women do not qualify for Statutory Maternity Pay since there is no employer relationship, but Maternity Allowance provides an alternative source of maternity income. The eligibility criteria and payment rates differ from employed persons, reflecting the different nature of self-employed work patterns and earnings structures.

To qualify for Maternity Allowance as a self-employed person, you must have been registered as self-employed with HMRC for at least 26 weeks in the 66 weeks before your expected week of childbirth and have paid Class 2 National Insurance contributions or held a Small Earnings Exception certificate for the relevant period. Unlike employed claimants, self-employed persons do not need to meet the £30 earnings test but must demonstrate the required registration and contribution history. Maternity Allowance for self-employed claimants pays up to £187.18 per week (2025-2026) for 39 weeks, subject to your contribution record.

How Bonuses and Pay Rises Affect SMP

Bonus payments and pay rises can significantly impact your SMP calculation, potentially increasing your average weekly earnings and therefore your first six weeks payment. The rules governing how these additional payments affect your entitlement depend on when they are paid relative to the relevant calculation period and when pay rises take effect.

Any bonus paid during the relevant period (the eight weeks before the qualifying week) increases your calculated average weekly earnings and therefore your SMP. A well-timed annual bonus could substantially boost your first six weeks payment. Furthermore, if your employer awards a pay rise effective at any time from the start of the relevant period through to the end of your maternity leave, your employer must recalculate your SMP based on the new salary and pay any arrears due. This backdating protection ensures pay rises benefit you even if implemented after your SMP calculation was initially performed.

Multiple Employments and SMP

If you hold multiple jobs simultaneously, you may be entitled to SMP from each employer where you meet the qualifying conditions. Each employment is assessed independently, meaning your hours, earnings, and length of service with each employer determine your entitlement from that specific job. This can result in receiving multiple SMP payments during maternity leave.

Each employer calculates your average weekly earnings from their own payroll records, applies the eligibility tests separately, and pays their own SMP obligation. You must notify each employer of your pregnancy and intended leave dates. There is no aggregation of earnings between jobs for eligibility purposes, so you could qualify with one employer but not another. However, if you work for the same employer in multiple roles or through different contracts, these may be treated as single employment for SMP purposes.

Recovering SMP as an Employer

Employers can recover most or all of the SMP they pay to employees through deductions from their regular PAYE payments to HMRC. The recovery rate depends on whether the employer qualifies for Small Employers Relief, providing significant financial support for businesses managing maternity leave obligations. Understanding recovery helps employers budget for maternity absences.

Standard employers can recover 92 percent of SMP paid, deducting this from their monthly or quarterly PAYE payments. Small employers qualifying for Small Employers Relief can recover 100 percent of SMP plus an additional 3 percent compensation, making maternity pay cost-neutral or even slightly beneficial. To qualify for Small Employers Relief, total National Insurance liability must be £45,000 or less in the qualifying tax year. If SMP recovery exceeds PAYE liability, employers can request advance funding from HMRC to cover payments.

Disputes and Appeals About SMP Decisions

If you disagree with your employer’s decision about your SMP entitlement or calculation, formal dispute resolution processes exist to challenge incorrect decisions. Understanding these processes helps ensure you receive your full statutory entitlement and can take appropriate action if payments are wrong or refused.

First, request a written explanation from your employer detailing why SMP has been refused or how it has been calculated. If you believe the decision is incorrect, contact HMRC’s Employer Helpline, who can investigate and issue a formal decision on SMP entitlement. HMRC can require employers to pay SMP if their refusal was unjustified. If you remain dissatisfied with HMRC’s decision, you can appeal to a Tax Tribunal within 30 days. For disputes about enhanced contractual maternity pay (as opposed to statutory SMP), you may need to raise a grievance through your employer’s internal procedures or potentially pursue an Employment Tribunal claim for unauthorised deduction of wages.

Planning Your Return to Work

Your return to work marks the end of your maternity leave and SMP entitlement, requiring careful planning around dates, notice periods, and practical arrangements. You are entitled to return to the same job after Ordinary Maternity Leave (first 26 weeks) and to the same or a suitable alternative job after Additional Maternity Leave (weeks 27-52). Understanding your rights helps ensure a smooth transition back to employment.

If you wish to return before the end of your full 52-week entitlement, you must give your employer at least eight weeks notice of your intended return date. Failure to provide proper notice allows your employer to postpone your return for up to eight weeks. You cannot be required to return early, and your employer must respect your right to the full 52 weeks if you choose to take it. Consider whether you want to change your working pattern on return, as you have the statutory right to request flexible working which your employer must consider seriously. Many women successfully negotiate reduced hours, compressed weeks, or other arrangements to balance work and childcare.

Frequently Asked Questions

Conclusion

Understanding your UK maternity pay entitlement empowers you to make informed financial decisions during pregnancy and plan effectively for your time away from work. Whether you qualify for Statutory Maternity Pay through your employer or Maternity Allowance through the DWP, knowing the rates, eligibility criteria, and calculation methods ensures you receive your full entitlement. The key dates of qualifying week and expected week of childbirth anchor all calculations, while your average weekly earnings determine payment amounts for the crucial first six weeks.

Use our UK Maternity Pay Calculator above to determine your exact entitlement based on your due date, earnings, and employment circumstances. Remember to check whether your employer offers enhanced maternity pay that exceeds statutory requirements, and factor in your accrued annual leave for additional paid time off. With proper planning and understanding of your rights, you can approach your maternity leave with financial confidence and focus on what matters most, welcoming your new baby into the world.