The Real Cost of Losing Women After Maternity Leave (UK Data)
When a business loses a woman after maternity leave, the conversation almost always jumps straight to replacement: who do we hire, how fast can we backfill the role, what does the recruiter's fee come to. Rarely does anyone stop to add up the full cost of what's actually been lost — and in the UK right now, that number is bigger, and more preventable, than most organisations realise.
How Many Women Are We Actually Talking About?
This isn't a fringe issue. Research from Pregnant Then Screwed, in partnership with Women in Data, found that up to 74,000 women a year lose their job for getting pregnant or for taking maternity leave in the UK — a 37% increase from 54,000 in 2016. The same research found that 12.3% of women are sacked, constructively dismissed or made redundant whilst pregnant, on maternity leave, or within a year of returning from maternity leave, and that a third of women say they were sidelined or demoted during this period.
Separately, research covered by Raconteur found that while 98% of mothers surveyed wanted to return to work, 85% had left full-time employment within three years of having children, with many citing redundancy, poor mental health, or the sheer impossibility of managing work and family responsibilities together. The same research suggested it can take more than a decade on average for women to return to their pre-maternity salary and status levels.
This is the pattern explored elsewhere on this blog — from the talent problem in finance, to healthcare's return-to-work problem, to the broader question of why policies keep improving while retention doesn't.
What This Actually Costs a Business
Turnover research consistently puts the cost of replacing an employee at between 50% and 200% of their annual salary, depending on seniority and sector. For a mid-level professional on a £50,000 salary, that's a replacement cost of roughly £25,000 to £100,000 once recruitment fees, onboarding time and lost productivity are factored in — and that's before accounting for the loss of institutional knowledge, client relationships, or team stability that a senior woman typically takes with her.
Crucially, most of that cost is invisible on a standard budget line. Industry research consistently finds that soft costs — lost productivity, knowledge transfer gaps and morale impact — make up 60-70% of total turnover cost, far more than the recruitment fees that actually get tracked. That means the true cost of losing a senior woman after maternity leave is almost always higher than what shows up in an exit-cost spreadsheet.
Why This Keeps Happening Despite Better Policies
Maternity policies across the UK have genuinely improved over the past decade. Flexibility is more widely accepted. Statutory protections have expanded. And yet the exit numbers keep climbing rather than falling. The reason is one this blog has raised before: a policy governs the paperwork of leave, not the human experience of returning. Women aren't leaving because the maternity policy failed on paper — they're leaving because the return itself was never actually supported.
What Actually Reduces This Cost
The interventions that work aren't complicated, but they do need to be intentional:
- Manager training specifically on the return-to-work transition, not just general people management
- Structured 1:1 support during the return period, rather than assuming women will simply "settle back in"
- Honest workload and role conversations before the return date, not three months into it
- Recognition that the transition is psychological as well as logistical — a returning employee isn't just managing childcare, she's often managing a genuine identity shift
Organisations that treat the return-to-work moment as seriously as they treat recruitment tend to retain far more of the senior talent they'd otherwise lose quietly, one resignation at a time.
The Business Case Is Already There
Given that replacing a single senior employee can cost tens of thousands of pounds, and that a meaningful share of the UK's 74,000 annual maternity-related exits are preventable, structured return-to-work support isn't a soft HR nice-to-have — it's a retention strategy with a direct line to cost savings.
If you're an HR or people leader wanting to understand what return-to-work and manager training support could look like for your organisation, get in touch to talk it through, or read more about the organisational support available.
Sources: Pregnant Then Screwed & Women in Data (2025 State of the Nation research); Raconteur, "Mothers return to work after maternity leave"; industry turnover-cost research (SHRM, Work Institute, and related sources) on the 50-200% of salary replacement-cost range.