You sit down one evening with a calculator, a nursery brochure and a payslip. You run the numbers. Then you run them again. And the answer stares back at you: after childcare, commuting and taxes, you will be working for almost nothing. Or less than nothing.
So you ask yourself the question millions of mothers ask every year: is it even worth going back?
That question sounds simple. It is not. Because the real cost of leaving work is never on the invoice. And the real cost of staying is never on the payslip. The maths nobody does is the maths that matters most.
How much does childcare actually cost?
In the US, average daycare costs rose 6.9% from 2023 to 2024, reaching roughly $343 per week. Nanny costs climbed 8%, averaging $827 per week. Family care centres saw a 50% jump, from $230 to $344 weekly.
About 60% of households now spend 20% or more of their income on childcare, according to a survey by Care.com. The US Department of Health and Human Services defines affordable childcare as no more than 7% of household income. By that benchmark, the vast majority of American families are paying far beyond what is considered reasonable.
In the UK, the picture is similar. Full-time nursery costs for a child under two averaged over £14,000 per year in 2023, according to the Coram Family and Childcare Survey. For families with two children in care, the figure can exceed a second mortgage.
The career calculation most mothers get wrong
When mothers compare their salary to childcare costs, they often look at one number: what they earn now minus what they pay now. If the gap is small or negative, the conclusion seems obvious. Stay home.
But that calculation misses several things:
What the short-term maths shows | What it misses |
|---|---|
Current salary minus childcare fees | Future salary growth and promotions lost |
Monthly take-home after tax | Pension contributions and compound interest over decades |
Savings made by not commuting | Loss of professional skills, network and confidence |
Immediate relief from the juggle | Long-term earning power and financial independence |
"It only makes sense for a few years" | The motherhood penalty that compounds over time |
Research from the US Census Bureau found that full-time working mothers with children under 18 earned 31% less than their male counterparts. Over a 30-year career, that translates to roughly $500,000 in lost earnings. Leaving the workforce, even temporarily, widens that gap further.
Why mothers are the ones who leave
This is not really about preference. It is about structure.
A 2023 Catalyst survey found that 35% of mothers said they would likely need to stop working entirely to manage childcare. Among women who left the workforce voluntarily in 2025, 42% cited caregiving concerns as the primary reason.
The Bureau of Labor Statistics reported that in 2024, 68.3% of mothers with children under six were in the labour force, compared to 94.9% of fathers with children the same age. That gap is not explained by desire alone. It is explained by a system that assumes one parent will absorb the cost, and that parent is almost always the mother.
"Many parents are not able to work because they can't afford childcare. About 60 percent of households spend 20 percent or more of their income on childcare." - Elise Gould, senior economist, Economic Policy Institute
The hidden costs of stepping away
The decision to leave work is often framed as temporary. "Just until they start school." But the financial impact is rarely temporary.
- Pension gap. Every year out of work is a year without employer pension contributions and compound growth. For a woman earning $50,000, five years away from work can mean $200,000 or more in lost retirement savings.
- Re-entry penalty. Studies consistently show that women who take career breaks face lower starting salaries when they return, even when their skills have not changed.
- Financial dependence. Leaving work means relying entirely on a partner's income. In healthy relationships, this may feel fine. In relationships that deteriorate, it becomes a trap.
- Identity loss. Work is not just a paycheque. For many women, it is a source of purpose, social connection and self-worth. Losing that can quietly feed into the emotional exhaustion that so many mothers carry.
The hidden costs of staying
Staying in work is not free either. The juggle itself has a price.
Mothers who remain employed while managing childcare report higher rates of burnout, guilt and time poverty. A 2023 Motherly survey of nearly 10,000 US mothers found that 18% had changed jobs or left the workforce in the past year. Of those, 28% did so to be with young children, but 15% left specifically because childcare was unavailable or unaffordable.
The guilt of working while someone else raises your child is real. So is the guilt of not working while your skills fade. Neither direction comes without a cost. The difference is that one set of costs is visible on a spreadsheet and the other sits inside you.
If you are navigating this tension, reading about how to ask for help as a mom might take some of the weight off.
What the full maths actually looks like
Before deciding to leave work or stay, run the numbers with a longer lens:
- Calculate your projected earnings over 10 and 20 years, not just this year
- Factor in pension contributions, employer benefits and pay rises
- Estimate the cost of re-entering your field after a 3 to 5 year gap
- Consider part-time, freelance or remote options that reduce childcare hours without eliminating income entirely
- Talk to a financial adviser if possible, even one session can reframe the picture
Childcare is expensive for a season. Lost career momentum is expensive for a lifetime. Both deserve space in the equation.
This is not a personal failure
If the maths does not work, that is not your fault. Childcare costs are a systemic problem, not an individual one. Mothers are not failing at budgeting. They are operating inside a system that was never designed to support them.
A 2025 US Census Bureau working paper confirmed what mothers already know: higher childcare costs directly reduce labour force participation among mothers, with lower-income mothers hit the hardest.
You might also find it helpful to read about building a personal brand as a mom if you are exploring alternatives, or about matrescence if the identity shift around this decision feels bigger than just money.
The decision to work or stay home should be a real choice. For too many mothers, it is not. And naming that honestly is where any meaningful change begins.
Sources and further reading
- US Census Bureau. (2025). The Impact of Childcare Costs on Mothers' Labor Force Participation. census.gov
- Catalyst. (2023). Working Parents and Childcare Problems Report. catalyst.org
- Catalyst. (2026). Caregiving is No. 1 reason women left the workforce in 2025. Cited in CNBC.
- Bureau of Labor Statistics. (2024). Employment characteristics of families.
- Motherly. (2023). State of Motherhood Report. Cited in Fast Company.
- Care.com. (2024). Cost of Care Survey.
- Nagoski, E. & Nagoski, A. (2019). Burnout: The Secret to Unlocking the Stress Cycle. Ballantine Books.
