Mothers aren’t just losing the income, promotions and career advancements that we’ve known about for quite some time. They’re also quietly spending their own money, absorbing more day-to-day costs and making financial sacrifices that place them at a long-term disadvantage.

We already knew about the impact of motherhood on women’s income. A 2015 study by Statistics Canada shows that mothers earn 85 cents for every dollar earned by fathers. Ten years after the birth of their first child, mothers’ earnings are still around 34.3 per cent lower than they would have been without children.

But our research also reveals that women’s relationship with money is rewired with motherhood and that having children changes their financial decisions and spending habits.

Study participants describe two competing narratives when discussing their personal finances. On the one hand, they view motherhood as a financial project they must manage independently, within the limits of budgets and cost-benefit considerations. On the other hand, they also see motherhood as a role that requires financial sacrifice, where children’s needs and well-being take priority over all financial considerations.

Motherhood comes with a price. Studies have shown that becoming a mother negatively affects women’s finances and career.

Some research suggests that among other changes, their colleagues might start to perceive

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