The True Cost of Being a Single Parent? It's More Than Just One Income.

By Melissa Jones.

We've all heard about the gender pay gap (which, let's be real, is still very much unresolved). And we're becoming more familiar with the "motherhood penalty" the career setbacks and pay cuts women face due to maternity leave and childcare responsibilities.

But we almost never talk about the single parent pay gap. And for single mothers, this gap doesn't just add to the problem; it multiplies it. Research from the University of Bristol reveals just how deep this economic disadvantage runs. Professor Susan Harkness analysed 25 years of US income data and found that the struggle for single mothers isn't solely about the absence of a second income. Shockingly, the "motherhood penalty" is just as damaging as not having a partner's earnings. The time out of the workforce, the reduced hours, and the missed promotions that begin at childbirth create a financial vulnerability that leaves women acutely exposed if they later become single parents.

This means that even married mothers, who may be comfortably well-off, are not immune. The research shows that marriage offers little protection; in fact, previously married mothers see the steepest income drops after separation. 

So, what does this look like in practice? Single parents are often forced into lower-paid or part-time work just to manage the load alone, with little to no childcare support. This one income, already diminished by years of the motherhood penalty, frequently means single-parent families are living in poverty. The conversation needs to shift: supporting families isn't just about helping single parents find work after they are on their own. It's about protecting mothers' earnings from the very start.

So, What Can We Actually Do About It?

Understanding the problem is one thing, but for single mothers reading this, or for anyone who wants to be a better ally, the real question is: what changes actually help?

Professor Harkness's research points to a crucial shift in thinking: we're often trying to fix the problem too late. Helping single mothers find work after they're already on their own is important, but it's like closing the barn door after the horse has bolted. The real solution? Protect women's earnings from the moment they become mothers, easier said than done, I know, but what could this look like in practice?

For Society & Government:

Job-Protected Family Leave for All Parents: Policies that allow mothers (and fathers) to take meaningful time off work after having a baby, without risking their jobs or their long-term career prospects are non-negotiable. When both parents are supported to share caregiving, mothers are less likely to become economically dependent and vulnerable.

Affordable, Accessible Childcare: I think this can be controversial, so hear me out. The lack of affordable childcare is the single biggest barrier keeping mothers from maintaining their careers. Universal or heavily subsidised childcare isn't just a nice to have; it's an economic necessity that allows mothers to stay in the workforce, keep progressing, and protect their earning power. However, it is important to note that not every parent wants to put their children into childcare; should we really be letting strangers raise our children so we can work? But what is the alternative? This is a conversation I believe we need to have more.

Normalise Flexible Working for Everyone: When flexible hours or hybrid work are seen as special arrangements for mothers, it damages their careers. But when flexibility is built into company culture for all employees, it removes the stigma and allows single parents to balance work and home without being sidelined.

For Employers:

Stop Penalising the "Motherhood Track": Review your promotion and pay practices. Are women who took maternity leave or reduced their hours for childcare being quietly overlooked for progression? Actively ensure that career pathways remain open, regardless of gaps or flexible working patterns.

Offer Predictable, Stable Schedules: For a single parent juggling childcare, a shift schedule that changes weekly is a nightmare. Employers who offer consistent, predictable hours make it possible for single mothers to actually plan their lives and arrange reliable care.

Create a Culture, Not Just a Policy: Having a family-friendly policy on paper means nothing if the workplace culture silently punishes anyone who uses it. Leaders need to model this. Taking parental leave themselves, leaving on time for school pickups to show that it's genuinely okay.

The Bottom Line:

Supporting single mothers isn't about charity. It's about recognising that the economic vulnerability they face is built by a system that fails mothers from the start. If we want to fix the single parent pay gap, we have to start by fixing the motherhood penalty. When we protect women's earnings after childbirth, we protect them for life, whether they stay partnered or not.

Melissa Jones is a single mother of one, founder, and advocate for parent-friendly workplaces. After navigating solo parenthood for the past five years, she has firsthand experience of the challenges and the resilience required to balance parenting, work, and life on your own.

She founded Culture Kind to educate employers on how to better support parents in the workplace, and The Single Mums Club, a community providing connection, advice, and support for single mothers.

In her column, Melissa explores the realities of single parenthood,  from managing work, finances, and mental load, to building a village and thriving as a solo parent, offering insights, practical strategies, and honest reflections for both parents and those supporting them.

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