UK Maternity Pay Calculator
Calculate your Statutory Maternity Pay (SMP) and eligibility based on your employment details
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How Is Maternity Pay Calculated in the UK? (2024 Complete Guide)
Understanding how maternity pay is calculated in the UK is crucial for expectant mothers to plan their finances during one of life’s most significant transitions. The UK offers one of the most comprehensive statutory maternity pay systems in Europe, but the calculations can be complex depending on your employment status, earnings, and timing.
1. Statutory Maternity Pay (SMP) Basics
Statutory Maternity Pay (SMP) is the legal minimum your employer must pay you when you take time off for maternity leave. To qualify for SMP, you must:
- Be an employee (not self-employed or a worker)
- Give your employer the correct notice (at least 28 days before you want your SMP to start)
- Earn on average at least £123 per week (the lower earnings limit for National Insurance)
- Have worked for your employer continuously for at least 26 weeks up to the ‘qualifying week’ (the 15th week before your due date)
2. How SMP Is Calculated
The calculation for SMP depends on your average weekly earnings and follows this structure:
- First 6 weeks: 90% of your average weekly earnings (before tax)
- Next 33 weeks: £172.48 per week or 90% of your average weekly earnings (whichever is lower)
The total duration is 39 weeks. You cannot get SMP for any weeks you work (except for Keeping In Touch days).
| Period | Duration | Payment Rate | 2024 Weekly Amount |
|---|---|---|---|
| First 6 weeks | 6 weeks | 90% of average weekly earnings | Varies by earnings |
| Next 33 weeks | 33 weeks | Lower of £172.48 or 90% of earnings | £172.48 (standard rate) |
| Total SMP | 39 weeks | Combined calculation | Up to £6,726.72 |
3. Calculating Your Average Weekly Earnings
Your average weekly earnings are calculated using:
- If paid weekly: Your earnings from the 8 weeks before your qualifying week
- If paid monthly: Your earnings from the 2 months before your qualifying week
- If paid irregularly: Your earnings from the full pay periods in the 8 weeks before your qualifying week
Bonus payments, overtime, and commission are included in this calculation if they’re part of your normal pay.
4. The Qualifying Week Explained
The qualifying week is the 15th week before your expected week of childbirth (EWC). For example:
- If your due date is 15 June 2024, your qualifying week is the week beginning Sunday 10 March 2024
- You must have worked for your employer for at least 26 weeks by the end of this qualifying week
5. When SMP Starts and Ends
SMP can start:
- From 11 weeks before your due date
- From the day after your baby is born (if earlier than expected)
- From the day after a pregnancy-related absence that starts after the beginning of the 4th week before your due date
SMP stops:
- After 39 weeks
- If you return to work (except for KIT days)
- If you’re no longer pregnant
6. Keeping In Touch (KIT) Days
You can work up to 10 KIT days during your maternity leave without losing your SMP for that week. These days are optional and must be agreed with your employer. Each KIT day is paid at your normal daily rate.
7. Maternity Allowance (If You Don’t Qualify for SMP)
If you don’t qualify for SMP, you might be eligible for Maternity Allowance (MA) from the government. The standard rate is £172.48 per week for 39 weeks. To qualify, you must:
- Have been employed or self-employed for at least 26 weeks in the 66 weeks before your due date
- Have earned at least £30 per week in 13 of those weeks
| Benefit | Weekly Rate (2024) | Duration | Eligibility |
|---|---|---|---|
| Statutory Maternity Pay | 90% of earnings / £172.48 | 39 weeks | Employed, £123+ average earnings |
| Maternity Allowance | £172.48 | 39 weeks | Self-employed or recently employed |
| Contractual Maternity Pay | Varies by employer | Varies (often 6-12 months) | Depends on employment contract |
8. Contractual Maternity Pay
Many employers offer contractual maternity pay that’s more generous than SMP. This is at the employer’s discretion and should be detailed in your employment contract. Common enhanced packages include:
- Full pay for 4-6 weeks
- Half pay for 12-20 weeks
- SMP for the remaining period
Always check your contract or speak to HR to understand what you’re entitled to.
9. Tax and National Insurance on SMP
SMP is treated as earnings, so:
- Income tax and National Insurance will be deducted
- It counts towards your tax-free Personal Allowance (£12,570 in 2024/25)
- It may affect your tax code
10. How to Claim SMP
To claim SMP:
- Tell your employer at least 28 days before you want your SMP to start (or as soon as possible)
- Provide a MATB1 certificate (from your doctor or midwife, usually given around 20 weeks)
- Confirm your due date and when you want to start your leave
Your employer must confirm your SMP start and end dates within 28 days of your request.
11. Common Questions About UK Maternity Pay
Can I get SMP if I’m self-employed?
No, self-employed women should claim Maternity Allowance instead.
What if I have two jobs?
You might get SMP from each employer if you qualify separately for each job.
Can I get SMP if I’m made redundant?
Yes, if you were entitled to SMP before being made redundant, you’ll still receive it.
What if my baby is born early?
Your SMP will start the day after the birth, and you’ll still get the full 39 weeks.
Can I change my mind about when to start SMP?
You can change your start date as long as you give your employer 28 days’ notice.
12. Planning Your Finances During Maternity Leave
With potentially reduced income during maternity leave, financial planning is essential:
- Budget: Calculate your essential expenses and compare with your SMP income
- Savings: Aim to save 3-6 months of expenses before your leave starts
- Benefits: Check eligibility for other benefits like Child Benefit or Universal Credit
- Return to work: Consider phased returns or flexible working options
- Childcare costs: Research costs and availability in advance
Many banks offer maternity leave mortgage holidays or reduced payments – check with your provider.
13. Recent Changes to UK Maternity Pay (2024 Updates)
Key changes in 2024 include:
- SMP standard rate increased to £172.48 (from £172.48 in 2023)
- Extended redundancy protections for pregnant women and new mothers
- New rights for parents to take unpaid leave for neonatal care
- Enhanced shared parental leave options
The government has also committed to reviewing parental leave policies, with potential future changes to:
- Extend the 3-month time limit for returning to work after maternity leave
- Improve protections for pregnant women at work
- Consider “use it or lose it” paternity leave to encourage shared parenting
14. Comparing UK Maternity Pay to Other Countries
The UK’s maternity pay system is more generous than many countries but less so than some European nations:
| Country | Duration | Payment Rate | Funded By |
|---|---|---|---|
| United Kingdom | 39 weeks | 90% then £172.48 | Employer/Government |
| Sweden | 480 days | 80% of salary (capped) | Government |
| Germany | 14 weeks | 100% of net salary | Employer/Government |
| United States | 0 weeks (unpaid) | N/A | N/A |
| Norway | 49 weeks (100%) or 59 weeks (80%) | 100% or 80% of salary | Government |
15. Expert Tips for Maximizing Your Maternity Pay
- Check your contract: You might be entitled to enhanced maternity pay beyond SMP
- Time your leave: Starting leave at the optimal time can maximize your higher-paid weeks
- Use KIT days strategically: These can help you stay connected without losing SMP
- Claim early: Submit your MATB1 and notice as soon as possible to avoid delays
- Combine with annual leave: You can add annual leave before or after maternity leave
- Check benefit eligibility: You might qualify for additional support like Healthy Start vouchers
- Plan your return: Some employers offer “returner” bonuses or flexible arrangements
16. What Happens After Maternity Leave?
After your maternity leave ends:
- You have the right to return to the same job (or a similar one if that’s not possible)
- You’re protected from dismissal or unfavorable treatment because of your maternity leave
- You may request flexible working arrangements
- Your pension contributions should continue as if you were working normally
If you decide not to return to work, you should give your normal notice period as per your contract.
17. Shared Parental Leave (SPL) Alternative
Instead of maternity leave, you and your partner can opt for Shared Parental Leave (SPL), which allows:
- Up to 50 weeks of leave to be shared between parents
- Up to 37 weeks of pay (£172.48 or 90% of earnings) to be shared
- Leave to be taken simultaneously or separately
- More flexibility in how you care for your child
SPL must be taken within the first year after birth or adoption.
18. Maternity Pay for Adoptive Parents
Adoptive parents are entitled to similar rights:
- Statutory Adoption Pay (SAP) at the same rates as SMP
- Up to 52 weeks of adoption leave
- Same eligibility criteria as SMP
- Right to time off for adoption appointments
19. Maternity Pay for Surrogacy Arrangements
For surrogacy, the intended parents may be eligible for:
- Statutory Parental Leave (if they meet the criteria)
- Statutory Pay at the same rates as SMP
- Time off to attend surrogacy appointments
The surrogate mother is entitled to maternity leave and pay as if she were the mother.
20. Where to Get Help and Advice
If you have questions or issues with your maternity pay:
- ACAS: Free, impartial advice on workplace rights (0300 123 1100)
- Citizens Advice: Practical help with benefits and employment rights
- Maternity Action: Charity specializing in maternity rights (0808 802 0029)
- GOV.UK: Official government information and calculators
- Your union: If you’re a union member, they can provide representation
For complex cases, consider consulting an employment law solicitor.