Lifestyle & Spending · 04

What does parental leave really cost?

Statutory pay versus actual salary is one gap. Lost equity vesting is another. Long-term career trajectory effects are usually the biggest.

Region

Leave

Income

Career trajectory

Real lifetime cost of leave
£1,181,376

Direct hit plus forfeited compounding over 25 years

Direct income hit
£21,000
Forfeited equity
£21,000
Lost trajectory
£1,139,376

Severe drag. Sole-earner leave with a steep dip and long horizon. Most softened by shared leave or a faster return.

Illustrative figures only. Statutory leave structures vary by jurisdiction and employer; many UK employers top up statutory pay, many US employers offer enhanced packages above the federal floor. For your specific situation, consult a qualified adviser.

Family leave, fully priced.

Worth carries the trajectory maths into household planning. Pre-leave income hit, lost equity, post-leave slope. The shared-leave option that softens the curve. Join the waitlist.

First 1,000 only. One email when you're in. No noise.

Frequently asked questions

How does UK statutory pay compare with US enhanced employer plans?

UK Statutory Maternity Pay runs six weeks at ninety per cent of salary, then thirty-three weeks at a flat amount, then thirteen weeks unpaid. Up to twelve months total. The US has no federal paid leave; FMLA gives twelve weeks unpaid. Some states (California, New York, New Jersey) provide paid family leave at around sixty per cent of salary, capped. US workers at major tech employers often get sixteen to twenty weeks paid through company policy.

Does sharing leave help?

Often. Shared parental leave splits the months between two parents, useful when one is the higher earner with a worse statutory ratio. Two partial dips usually beat one deep dip on the household income curve. Worth running the calculator twice, once for each parent's slice.

Why does the trajectory matter so much?

Because it compounds. A one-per-cent slower raise this year is also a one-per-cent slower raise next year and the year after. Over a twenty-five-year career, the gap widens to a real fraction of total lifetime earnings. The leave itself is months; the trajectory is decades.

How accurate is the trajectory term?

Directionally accurate, not surgically precise. Trajectory depends on industry, employer, return-to-work arrangement, and luck. Many studies show parents who return part-time experience a steeper dip than those who return full-time. Treat the number as a sensitivity, not a forecast.