Shared parental leave: a worked example

What actually happens when one of your fifteen staff asks - the arithmetic, the notice, and the one thing you're allowed to say no to.

By · Guide · Employment law · Updated 8 August 2026 · 6 min read

In short

Shared parental leave lets parents split up to 50 weeks of leave and 37 weeks of pay between them, in up to three blocks each. It works by the mother or primary adopter curtailing their maternity or adoption leave and converting the untaken balance into a shared pot. For a small employer the practical questions are the notice you'll get (at least 8 weeks) and whether you can decline discontinuous blocks (you can).

How does shared parental leave actually work?

Statutory maternity leave is 52 weeks with 39 weeks of pay. If the mother returns early - or gives binding notice that she will - the untaken balance becomes available to share:

The arithmetic
  • 52 weeks' maternity leave − 2 weeks compulsory after birth = up to 50 weeks shareable
  • 39 weeks' statutory maternity pay − 2 weeks = up to 37 weeks of shared parental pay
  • Both parents draw from the same pot; whatever the mother takes as maternity leave reduces it

A worked example: when one of your fifteen staff asks

Sam works for you. His partner Jo works elsewhere and is due in March.

How a typical shared parental leave split plays out.
PeriodJo (her employer)Sam (you)
Birth + 2 weekscompulsory maternity leave2 weeks' paternity leave (day-one right)
Months 1-6maternity leave, 26 weeks takenat work
Curtailmentgives notice to end maternity leave at 26 weeks -
Months 7-9back at work12 weeks' SPL - notified to you 8+ weeks ahead
Remaining pot50 − 26 − 12 = 12 weeks still available to either of them

Sam's 12 weeks are paid at the statutory rate - the lower of £194.32 a week or 90% of his average weekly earnings - and you reclaim it from HMRC in the normal way: 92%, or 109% under Small Employers' Relief. The mechanics are the same as maternity pay: see reclaiming statutory pay.

What notice will you get?

At least 8 weeks. The employee gives you a notice of entitlement (confirming they and their partner qualify) and then a booking notice for each period of leave. They can book up to three separate blocks, and they can vary them - each variation also needs 8 weeks' notice.

Can you refuse it?

What a small employer can and can't decline.
RequestYour position
A single continuous block of leaveCannot refuse - if they're eligible and gave notice, it happens
Discontinuous blocks (e.g. 3 weeks on, 4 off, 3 on)Can decline the pattern - then it defaults to one continuous block, or they withdraw
Eligibility itselfCan check it - both parents must meet the continuity and earnings tests

There's a two-week discussion window built in for exactly this: use it to find a pattern that works rather than reflexively declining, because a refused discontinuous request usually just becomes a longer continuous absence instead.

What does it mean for a fifteen-person team?

  • You get more notice than for maternity leave, and usually more warning of the return date too - SPL is often easier to plan around, not harder.
  • Cover is the real cost, not the pay - the statutory pay is largely reclaimable, the temp isn't.
  • Keep terms intact. Holiday accrues throughout, and the person returns to the same job after 26 weeks or less.
  • Say yes visibly. In a small team, how you handle the first SPL request sets the expectation for every parent who follows.

Acas covers the process in detail in its shared parental leave guidance. For the neighbouring rights, see day-one paternity leave and unpaid parental leave.

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Family leave you can plan around

CoDash's family-leave planner tracks maternity, paternity and shared parental blocks with dates, notice and entitlements on one record.