Shared Parental Leave UK: A Complete Guide for Families

Shared Parental Leave (SPL) was introduced in the UK in April 2015 with the aim of giving families more flexibility in how they share the care of a new baby. In theory, it is a progressive and generous system. In practice, uptake has remained stubbornly low — estimates suggest that fewer than 5% of eligible families have used it. Understanding why, and whether it is right for your family, requires getting to grips with a somewhat complex set of rules.

How Shared Parental Leave Works

Shared Parental Leave allows eligible parents to share up to 50 weeks of leave and up to 37 weeks of statutory pay between them, following the birth of a child. The system works by the birth mother "curtailing" her maternity leave early and converting the remaining entitlement into a shared pool that both parents can draw upon.

The key principle is flexibility: unlike maternity leave, which must be taken in one continuous block, SPL can be taken in up to three separate blocks by each parent. This means, in theory, parents could take leave simultaneously, take turns, or stagger their periods of leave throughout the baby's first year.

Eligibility

Both parents must meet eligibility criteria, which are assessed separately.

The birth mother (or primary adopter) must:

• Have at least 26 weeks' continuous employment with their employer by the 15th week before the expected due date
• Still be employed by the same employer
• Have earnings averaging at least £30 per week (the lower earnings limit for National Insurance) over the 66 weeks before the due date
• Give notice to curtail maternity leave before transferring entitlement

The partner (or secondary adopter) must:

• Have been employed or self-employed for at least 26 of the 66 weeks before the baby's due date
• Have earned at least £30 per week in at least 13 of those weeks
• Be employed at the time each individual leave period begins

If either parent does not meet the criteria, the other cannot access SPL. This is one of the reasons uptake is low: many couples find that one partner — often the one earning less, frequently in more precarious or self-employed work — does not qualify, making the whole scheme unavailable.

Pay Rates

Statutory Shared Parental Pay (ShPP) is paid at the same rate as Statutory Maternity Pay: the lesser of £187.18 per week (the 2025–26 rate; this increases annually) or 90% of average weekly earnings.

This means that for most households, SPL involves a significant income drop — often 60–80% below normal salary. For families where the mother earns more than the partner, sharing leave can make financial sense. For families where the partner earns more, the cost of them taking SPL can be prohibitive.

Enhanced pay matters enormously here. Some employers offer enhanced maternity pay (full pay for some or all of the maternity period) but do not extend equivalent enhancement to shared parental leave. If this is the case at your employer, the financial argument for the birth mother to remain on maternity leave is strong. Check your employer's policy carefully and, if necessary, ask HR directly.

How to Give Notice

The process for taking SPL involves more administrative steps than most parents expect. Here is a simplified overview:

1. The birth mother gives notice of intention to curtail maternity leave. This can be given from week 15 before the due date and specifies the date maternity leave will end.
2. Both parents give their employers a "notice of entitlement" confirming that SPL entitlement exists. This must be given at least 8 weeks before the first block of SPL begins.
3. Each block of SPL requires a separate "period of leave notice" given at least 8 weeks before that block starts.

There are strict notice deadlines throughout this process, and getting them wrong can mean losing the entitlement for a specific period. The government's online SPL tool (gov.uk) can help you calculate dates and draft notice letters.

Why Uptake Is Low

Despite being on the statute books for a decade, SPL has not transformed parental leave in the way its architects hoped. Research points to several interconnected reasons:

The pay gap. In most UK households, mothers still earn less than their partners, meaning the family takes a smaller financial hit when the mother takes leave. The economics of the family often make it straightforwardly unaffordable for the higher earner to take extended SPL at statutory pay.

Workplace culture. Many fathers and partners report concerns about how taking extended leave would be perceived by their employer or colleagues. Workplace norms around men taking extended parental leave have shifted, but not uniformly.

Complexity. The notification process is genuinely complicated, and many eligible families simply do not understand how to navigate it. HR departments in smaller businesses may themselves be unsure of the rules.

Inequality in enhanced maternity pay. Where employers offer enhanced maternity pay but not enhanced SPL, the financial incentive to use the shared scheme is significantly reduced.

Awareness. Despite nearly a decade of existence, surveys consistently show that large proportions of eligible parents are unaware of SPL or do not understand how it works.

Tips for Making It Work as a Couple

If you have established that you are eligible and the finances work, here is how to approach SPL practically:

Plan well in advance. SPL requires decisions to be made — and notice given — months before leave is taken. Do not leave planning until after the baby arrives when you are sleep-deprived and overwhelmed.

Have the financial conversation honestly. Work out your actual household budget during leave periods. Consider whether any months of overlap or overlap near the end of the first year would work better for your family than sequential leave.

Consider taking simultaneous leave. Some families use SPL to take a period of leave together, particularly in the early weeks. This can be invaluable for establishing feeding and routines as a team.

Talk to HR early. Many employers have processes and policies around SPL beyond the statutory minimum. Understanding your employer's position early gives you more options.

Document everything. Keep copies of all notice letters and confirmation from employers. Disputes about SPL entitlement occasionally arise, and a paper trail is valuable.

Know your rights if refused. Eligible employees cannot be refused SPL, and taking it is a protected act — you cannot be treated to your detriment for taking leave you are entitled to. If you face problems, Acas and the charity Maternity Action can provide guidance.

The Future of SPL

There has been ongoing political discussion in the UK about reforming SPL to increase uptake — including proposals for a non-transferable "daddy leave" period (comparable to the reserved paternity leave that exists in Scandinavian countries) that would be lost if not used. As of mid-2026, no legislative changes have been enacted, but the conversation continues.

For now, SPL remains a valuable but underused option. If you are fortunate enough to be eligible and able to afford it, it is worth the administrative effort.