The retirement strategy nobody talks about.

Here's a question that sounds simple but isn't: how much money would make you happy? If you haven't yet found your retirement number, that's a good place to start.

Research on this topic consistently finds the same pattern. When people are asked what income would make them feel financially comfortable, most reply with a figure about 50% higher than what they currently earn. The remarkable thing is that this is true regardless of what people currently earn. Those on modest incomes say it. Those on very high incomes say it too.

Which means that for most people, the moment they reach that figure, the answer simply resets. They want 50% more than the new number. The destination keeps moving.

This isn't a personal failing. It's the logical result of living in a culture that constantly tells us that more is better — more income, more possessions, more options. Consumer culture's central promise is that you will be a happier and more fulfilled person if you acquire more things. It's a compelling promise, and most of us have absorbed it so thoroughly we don't notice it operating.

But the evidence doesn't support it. Beyond a certain point, more stuff doesn't make people happier. What people actually need — identity, connection, purpose, love, the sense that they are living in alignment with their values — cannot be purchased. Trying to fill those needs with material things sets up an appetite that can never be fully satisfied.

The retirement question most people are asking wrong

When people worry about retirement, the instinct is usually to look for ways to earn more. A pay rise, a side income, a better-performing investment. More.

But this frames the problem in a way that makes it harder to solve. Because the real question isn't "how do I get more?" It's "how much is enough?"

And "enough" here doesn't mean the lump sum needed to fund retirement — though knowing that number matters enormously. It means something more personal: the amount of money required to live a genuinely happy, fulfilling life. Not the life that advertising suggests you should want. The life that, on reflection, you actually want.

For most people, when they think carefully about this, that figure is lower than their current spending. Not because they need to live poorly, but because a significant portion of most people's spending is automatic, unconsidered, or driven by social pressure rather than genuine desire. It's spending on things that don't, in the end, add much to the quality of a life.

The double effect of spending less

When you reduce spending that doesn't genuinely add to your life, something interesting happens on two fronts simultaneously.

First, the money you're no longer spending becomes available to save. More savings means reaching your retirement goal faster, or retiring earlier, or both.

But second — and this is the part that surprises most people — the retirement income you'll need in the future also falls. If you currently spend $80,000 a year but discover that $60,000 covers everything that actually matters to you, your retirement target drops significantly. You need a smaller lump sum, which means you need fewer years of saving to reach it.

This double effect is why conscious spending is the most powerful lever most New Zealanders have. It works on both ends of the equation at once, and no investment return or pay rise can do that.

What people find on the other side

The goals most people set themselves around money are usually financial: pay off debt, save a certain amount, retire by a certain age. These are worth having. But the people who make the most meaningful change tend to report something broader than financial improvement.

When spending becomes intentional rather than automatic, the relationship with money shifts. It stops being a source of anxiety and becomes a reflection of values. The things people do buy feel more considered and more satisfying. The financial pressure that quietly stresses so many relationships — between partners, within families — often eases. There is more time, because less of it is spent working to fund spending that wasn't really making anyone happy. And there is more mental and emotional space for the things that genuinely matter.

None of this requires dramatic sacrifice. Small changes, applied consistently, produce larger results than most people expect. And larger changes — a genuine rethinking of what enough looks like — can be transformative.

What this means for the planet

There is one further dimension worth naming. Consumer culture is not only a poor route to personal happiness — it is also enormously costly to the natural world. The carbon footprint of modern consumption, the waste produced by the buy-and-discard economy, the environmental toll of manufacturing things that people don't need and don't particularly want — these are significant, and they are directly connected to the patterns of spending that also undermine personal financial security.

This means that choosing to spend more consciously isn't only good for your retirement. It's good for the planet. The same decision that accelerates your path to financial freedom also reduces your environmental impact. These two things — living well and living lightly — are not opposites. They turn out, on reflection, to be the same thing.

Where ThatDay comes in

ThatDay is a free retirement planning platform built for New Zealanders. It will show you clearly how much you need for the retirement you want, and exactly what you need to save to get there. But it will also help you see how your spending choices today directly shape both of those numbers — empowering you to make conscious decisions rather than simply trying to save harder within a lifestyle that hasn't been examined.

Understanding your number is the beginning. Deciding what enough looks like is where the real change starts.

Start understanding your enough — create your free ThatDay account at thatday.co.nz

Further reading: Why your retirement probably costs less than you think

ThatDay's financial assumptions were independently validated by the University of Auckland Business School's Master of Applied Finance programme.