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There are only four levers, and one of them is genuinely yours

Earn, spend, keep, invest. Everything else follows from those. How to measure each of the four on your own numbers, and why the one people talk about most matters least.

·6 min read
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Financial content online gives the impression there are hundreds of decisions to make. Which broker, which wrapper, which switch, which timing, which allocation. That is an optical illusion produced by people who have to publish three times a week.

In reality your wealth depends on four things. They are so obvious that everyone skips them, and that is precisely why people spend years optimising the fifth decimal of a problem they have not yet stated.

The four levers, in the order money passes through them
  1. 1Earn

    What comes in. The ceiling on everything else, and the slowest lever to move.

  2. 2Spend

    What goes out. Acts twice: it frees up savings and lowers the amount you will need later.

  3. 3Keep

    The gap between the two. The only lever that actually produces wealth.

  4. Invest

    What the remainder becomes. Multiplies the previous lever, never replaces it.

Each is measurable on your own statements. None substitutes for another: an excellent return on a 2% savings rate is still an excellent return on almost nothing.

Lever one: what comes in

It is the ceiling on everything else, and it is also the slowest. A pay rise plays out over years, depends partly on other people, and is not always in your hands.

The classic trap is not there. It is in what happens immediately afterwards: a raise absorbed by a lifestyle rising at the same pace changes nothing at all about wealth. It is the most ordinary mechanism in personal finance, and it explains why very comfortable incomes sometimes end up with nothing built.

Lever two: what goes out

This one acts twice, which is what makes it unusual.

First it mechanically frees up savings. Then, and this is the point almost everyone misses, it lowers the amount you will need later. A recurring expense cut by €300 a month is not only €3,600 more saved each year: it is also roughly €90,000 less capital to build to fund the same life, using the usual order of magnitude of twenty-five times annual spending.

One decision, moving both ends at once. No other lever does that.

Lever three: what stays

The gap between the first two. It is the only one of the four that produces wealth; the others merely condition it.

It is measured as a share of what comes in, not in euros: €400 kept out of €1,800 of income and €400 kept out of €6,000 are not the same story. And it is measured over several months, never one, because a month with a tax bill and a month of January bear no resemblance to each other.

It is the lever most directly under your control, and by far the least discussed online, because there is nothing to sell around it.

Lever four: what the remainder becomes

Return multiplies the previous lever. It never replaces it.

The arithmetic is blunt: two extra points of return on €200 a month weigh less, over twenty years, than moving to €300 a month at the same return. Yet most available content is about return, because it is the only one of the four levers with something to sell attached.

Which does not make it negligible. Over thirty years, the gap between money compounding and money sitting still is considerable. But it is a multiplier, and a multiplier applied to a small number stays a small number.

Measure them rather than estimate them

Each of the four reads off your own statements, with no questionnaire and no self-assessment:

  • Earn: everything that came in over the last twelve months, bonuses included.
  • Spend: everything that went out over the same period, separating what is committed from what is not.
  • Keep: the difference, as a percentage of the first figure.
  • Invest: the share of your wealth that is working, as against the share sitting in an account.

One point of method matters: if you do not have the data, the answer is "I do not know yet", not zero. Zero is a measurement, and a false one. Giving yourself a bad grade on a lever you have never looked at is the surest way to abandon the exercise within ten minutes.

What this grid avoids

It avoids premature optimisation, which is the national sport of personal finance. Spending a weekend comparing two brokers while keeping 4% of your income is solving a third-order problem before the first-order one.

It also gives a clear order of treatment. The "keep" lever can be worked on today with what you already have. The "earn" lever plays out over years. The "invest" lever only has an effect once there is something to multiply.

Where IgniFI fits in

IgniFI reads these four levers directly off what you have recorded, and shows the measurement rather than a grade. When a figure is missing, the app says so and points at the screen that supplies it, instead of drawing a zero nobody ever measured.

It is neither a score nor a level, and there is nothing to unlock. It is four numbers taken from your own records and put side by side, which nobody does spontaneously, and which is usually enough to see which of the four deserves your attention this year.

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