Maternity leave shouldn’t cost you your future: what every new mum needs to know about the parental pension gap

There’s a lot to think about when you’re preparing for maternity leave.

Juggling responsibilities.

Attempting to time your leave perfectly.

Adjusting to a new rhythm of life.

What most parents aren’t thinking about - often because no one tells them to - is how this time out can affect their financial future.

And according to new research, that lack of awareness is costing parents serious money.

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The £720-a-year pension boost most parents miss

Almost two-thirds of parents (63%) don’t know that a partner or relative can pay into a new mum’s pension while they’re on maternity leave, and that the government will top it up by 25%.

In practical terms, this means that if you take time out of work to raise children, a partner or family member can pay up to £2,880 a year into your pension, and you can receive up to £720 extra from HMRC.

If you're taking maternity leave but remain employed, you may be able to receive an even higher contribution, depending on your earnings.

That’s money added automatically, no special application, no extra paperwork.

When you’ve wrangled through the statutory maternity pay claims process, you know how valuable that is.

And if you’ve already taken your maternity leave, it’s not too late. A partner or relative can contribute to your pension to help you fill in gaps at any time.

Over time, that £720 a year in your pension pot could grow into thousands of pounds, thanks to compound interest.

Yet because this rule is so poorly understood, our friends at Octopus Money estimate families across the UK could have missed out on £2.5 billion in pension top-ups while taking parental leave.

This policy has existed for over 25 years, but it’s one of the biggest blind spots in parental planning.

Why mums are hit hardest

Parenthood doesn’t affect everyone’s finances equally.

Women are still far more likely to take extended parental leave or career breaks - and those pauses have long-term consequences. And while childcare costs often dominate the conversation, parents say their biggest financial worry is actually saving for their children’s future, followed closely by day-to-day living costs.

The result? A pension gap that widens with age.

Data from over 13,000 Octopus Money customers shows that while women in their early 20s often start slightly ahead, by age 55–60, men typically have around 40% more in their pension pots than women.

In fact, women must work on average 19 years longer than men to receive the same amount in retirement. A short break early on can snowball.

The earlier you know and act, the bigger the difference will be.

Planning beyond the baby stage

For many mums, money planning during maternity leave focuses on the immediate: budgeting for time off, adjusting household income, and managing additional childcare costs.

Ekaterina, 33, a product manager who sought advice from Octopus Money while preparing for maternity leave, shared how easy it is to overlook the longer-term picture:

“Before maternity, my focus was on short-term things like setting up the nursery and budgeting for time off — not the long-term impact on my pension. I didn’t know this government pension rule existed, and I think that’s the same for a lot of parents.”

With guidance, she and her partner were able to have clearer, less emotional conversations about money - shifting from survival mode to future planning.

A practical place to start

To help parents understand the real impact of parental leave, Octopus Money has created a free Parenthood Pension Gap Calculator. It shows how time out of work could affect your pension - and how contributions from a partner or family member could help close the gap before it grows.

For mums who like to plan but feel uneasy about finances, seeing the numbers clearly can make everything feel more manageable.

You can also speak directly to an Octopus Money financial expert, who’ll take time to understand your situation, explain your options, and help you build a plan you actually feel confident about - with no obligation to continue unless it’s right for you.

The bottom line

Parenthood reshapes your life in ways you expect - and many you don’t.

Understanding what you’re entitled to, how parental leave affects your long-term finances, and what small steps can protect your future isn’t about being “good with money.” It’s about being informed.

Because planning for your family shouldn’t mean sacrificing yourself in the process.

Join us on Peanut to see what other mums are saying about maternity money planning. 🥜

This article is for general information only. It is not personal advice. Your financial decisions should be based on your own circumstances. Investments can go down as well as up. Pension and tax rules can change.