What to have sorted before investing your first euro

Four things come before investing: how much cash you keep available for emergencies, what you do about any expensive debt, how long before you'll need each euro, and how much risk you take off as that date gets closer.

Without that emergency fund, which this session calls your cushion, the first surprise forces you to sell at the worst moment. And expensive debt, a card or a consumer loan at double-digit interest, takes more than investing has returned on average.

Why the emergency fund comes before investing

Because without it, the day you need cash fast you'll have to sell whatever you've invested, and you don't pick that day: the broken car or the sick leave picks it. If it coincides with a bad stretch in the stock market, where people buy and sell company shares, you turn a temporary drop into a permanent loss.

The figure that frames the problem in Spain

The Living Conditions Survey of Spain's National Statistics Institute (INE) asks households every year whether they could pay an unexpected expense with their own money, without borrowing. In the 2025 edition that expense was €650.

The household answers the question, and the INE counts that answer for every person living in it.

36.4% of people living in Spain couldn't pay it, up from 35.8% the year before. Among 16-to-29-year-olds it rises to 41.2%. Among those aged 65 and over it drops to 28.2%: the younger you are, the less cushion there is behind you.

Six hundred and fifty euros is a boiler, or a tooth, nothing out of the ordinary. And more than four in ten young people in Spain can't cover it without borrowing.

And why this isn't a personal failing

Financial education here mostly scolds. The data doesn't describe people who spend badly: it describes a structural situation.

The Allianz 3AM Report 2026, which the insurer Allianz produces with the pollster Ipsos across ten thousand interviews in ten countries between April and June of that year, found 29% of Spaniards say they currently can't save anything.

Another 31% save less than 10% of their monthly income.

Spain's household savings rate closed Q1 2026 at 11.3% of disposable income, which is what's left of what you earn after tax and social security.

The figure is from the INE and it's corrected for the time of year. In the same quarter of 2025 it was 12.3%, a point higher.

If you're in that group, the order that follows still holds. What you can set aside each month sets the pace.

How much cushion you need and where to keep it

Three to six months of essential expenses, kept in something you can turn into cash the same day without losing value. Not three to six months of salary: of expenses, and only the ones you can't stop paying, which is a much smaller number.

How to calculate it, which is easier than it sounds

Take any month and add up only what you'd keep paying if your income stopped tomorrow: rent or mortgage, electricity, water, gas, internet, food, insurance, transport to work, and payments on debt you already have.

Leave out everything else. Restaurants, clothes you don't need, holidays, subscriptions you could cancel in a minute. None of that belongs in the calculation, because in a real emergency it disappears on its own.

Someone with €1,400 in essential monthly expenses needs a cushion of somewhere between €4,200 and €8,400: €1,400 times three, and €1,400 times six.

That's a high figure, so it works better as a target in stages. You don't need the whole thing to start. The first €1,000 already changes a lot against the €650 in the INE survey.

How many months, for your case

Three months is reasonable with a stable job, predictable income, and someone else contributing at home.

Six months or more if you're self-employed, have irregular income, are the household's only earner, or work in a sector that lays off easily.

Your number comes from how long it would take to replace your income if it disappeared tomorrow, not from how much you earn.

And the three and the six come from a convention financial writing repeats, with no study behind them.

Where to keep it, and where not to

The cushion doesn't go into the stock market. Its job is being available the day it's needed, and something that can drop 20% in the very month you need it can't do that job.

The reasonable options share two things: the money is available within hours or a few days, and its value doesn't fluctuate.

An interest-bearing account is the simplest. A short-term deposit works too. You leave the money with the bank for a fixed period, and breaking it early usually carries a penalty.

A money market fund lends the money out for days or a few months. It's another common option, slightly less immediate.

Return is what the money gains or loses in a year, as a percentage of what you put in. Here the last fraction of that return doesn't matter.

What isn't an emergency

It isn't an emergency if you could see it coming months ahead. Neither is a new phone, nor anything you can put off without consequences. The cushion empties as easily as it fills, and what decides whether it holds is having written down what it's for.

An emergency is a cost that's unexpected, necessary, and urgent. All three at once. A breakdown in the car you need for work ticks all three. A trip you've wanted to take for months ticks none, however good this week's price is.

Predictable costs come from separate savings. Replacing the car in three years and a master's tuition are goals with a date. Mixing them with the cushion leaves it empty exactly when the unexpected happens.

They're two separate pots even if they sit in the same bank. The emergency one has no date because you don't know when it'll be needed.

The goals one does, which is why it can sit in something slightly less liquid (it takes more than a day to turn into cash).

What to do if you can't afford to save

Save what you actually can, even if it feels laughable, instead of waiting until you can save what you're supposed to. Nearly three in ten Spaniards can't save anything, per the Allianz 3AM Report 2026, so "plan ahead" is no answer here: the full cushion isn't within everyone's reach, but the first stage is.

The first €500 or €1,000 are the difference between fixing a breakdown with your money or with a credit card.

An automatic transfer the day after payday, even for €25, beats the intention to save whatever's left at month's end, because nothing is left at month's end.

There's one case where saving more fixes nothing, because the money goes out in interest. Someone carrying €4,000 on a card at 22%, the rate the next section's example assumes, pays about €73 a month.

The sum is €4,000 times 22%, which is €880 a year, spread over twelve months.

What to do if you have expensive debt alongside

Paying it off comes before investing. Interest at 22% is a bill that arrives for certain; the 10% a year the US stock market has returned since 1928 is an average of years already gone by. Expensive debt is the one case where the return doesn't depend on the market: it's the interest you stop paying.

The 10% in that average is counted before inflation, which is what prices go up by from one year to the next.

If prices rise, the same euros buy less, so the same return can be counted two ways: in euros, and in what those euros buy.

Where the threshold sits, and why there

There is no official threshold for expensive debt. The 7% annual interest that gets passed around is writing convention from the private fund managers, firms that run other people's money and write guides for their clients, and not one of them signs it: Fidelity, which manages funds in the US, published 6% in September 2025.

Aswath Damodaran is a finance professor at the Stern business school of New York University, and he publishes the yearly series of US stock market returns going back to 1928.

On his data, that market has returned 10.0% a year between 1928 and 2025, compounded (each year starts from what the one before it left) and with dividends included (the slice of profit companies hand to their owners), before inflation. And in dollars, not euros.

With inflation stripped out, that becomes 6.8%. Inflation over the same period averaged 3.0% a year, measured by the consumer price index the US Bureau of Labor Statistics publishes.

You don't get from 10.0% to 6.8% by taking the 3.0% away. Stripping out inflation is a division, which is why the answer lands two tenths below what subtracting would give.

A card's interest is counted like the 10.0%, with no inflation stripped out, so it goes against that 10.0% and not against 6.8%. Debt above 10.0% has cost more than that average returned.

With numbers that close it could look like a tie, but the two sides have nothing else in common. Card interest gets paid no matter what. The market average comes out of almost a hundred years already closed, and in 2022 that market closed at −18%.

The math that doesn't work, with numbers

The average rate on Spanish deferred-payment and revolving cards, the ones that let you pay the bill in instalments and charge interest on what's still outstanding, was 18.2% in March 2026, per the Bank of Spain's statistical bulletin.

That rate leaves out fees and insurance, so what the customer actually pays is more.

Someone has €4,000 on a card and decides to invest alongside instead of paying it down. The 22% a year is this example's assumption, a little above the average the Bank of Spain publishes.

They also have €3,000 saved. From today, those €3,000 can go down two roads.

If they leave the debt alone, by the end of the year they have paid €880 in interest and owe €4,880.

If they put the €3,000 against the card today, €1,000 of debt is left and they pay €220 in interest over the year.

Between the two roads there is a €660 difference, and that is what paying it down saves.

To break even, those €3,000 invested would have to earn the same €660. On €3,000, that's 22% in a year.

The 22% turns up again because the break-even point is the rate of the debt itself, as long as what is saved doesn't exceed what is owed. Nobody plans around 22% a year, and least of all with the certainty a card bill arrives with.

The order financial writing usually gives is this: a minimal starter cushion of a few hundred euros, so a surprise doesn't send anyone back to the card; then the expensive debt; and only then the full cushion and investing.

Fidelity agrees on the debt leg. It puts paying down debt before investing from 6% interest up.

Cheap debt is a different matter. New Spanish mortgages were averaging 2.89% in June 2026, per the Bank of Spain's statistical bulletin, and a mortgage at that price doesn't belong in this category.

It's below the threshold, and paying it down early competes on even terms with investing, with no obvious answer.

How everything changes depending on when you need the money

The timeframe you'll need the money decides what you can do with it. The same asset (a share, a fund, a flat) is reasonable over twenty years and reckless over two. The difference is the time you have left to recover if it goes wrong.

The same market, three different answers

The S&P 500 is the index of the 500 biggest companies on the US stock market. Crestmont Research, which analyses markets, has measured all 107 of its twenty-year periods ending between 1919 and 2025.

They're overlapping periods: one for every year they can end in. Total return counts the price rise plus the dividends, and not one of the 107 was negative; the worst returned 3.1% a year.

Over a single year it's a different story: 26 of the 98 years between 1928 and 2025 closed negative, a bit more than one in four, on the series that professor Damodaran keeps at New York University.

It's the same index in both cases, over twenty years and over one. Only how long you stay in changes. The three bands that follow are writing convention, like the three and the six for the cushion, with no measured figure behind them.

Short term, zero to two years. Money for a house deposit, a car, a wedding. With a fixed date and an exact amount, that money can't depend on how the market feels that month.

Medium term, three to seven years. There's room to take some risk, but not to bet it all. A bad stretch here can catch you without enough time to recover.

Long term, eight years or more. Here, time gives you room. A 20% drop in year three of a twenty-year horizon leaves seventeen years ahead.

The practical consequence

You don't have "a risk profile." You have one per goal. The house deposit money and the retirement money can live in the same account and require opposite decisions.

That's the first line of the profile sheet you'll fill in at the end of this chapter: what this money is for, and when you need it.

What sequence of returns risk is

Good average returns over the long run aren't enough: the order the good and bad years arrive matters too. Two people with exactly the same average can end up in very different situations depending on when the bad stretch hit them.

Why order matters if the average ends up the same

If you never add or withdraw money, order doesn't matter: multiplying the same numbers in a different sequence gives the same result.

Order starts mattering the moment there are contributions or withdrawals, which is what everyone actually does.

Picture two people investing over twenty years and taking the money out at the end. The first hits the bad stretch in years one and two, when they've barely put anything in.

The drop hits a small amount, and then they have eighteen years of contributions into a recovering market.

The second hits the same bad stretch in years eighteen and nineteen, with everything already in: the drop applies to the full accumulated amount, and they have only months to recover.

The two people end up with identical average returns and with very different amounts of money.

What you do about it

Nobody chooses when bad stretches arrive. What can be done is not betting it all on the last few years, and for that the risk comes down as the date you'll need the money gets closer.

It's the exact opposite of what intuition pushes for, which is taking more risk when there's little time left and you're behind.

Sequence of returns risk explains why that intuition is costly: it's precisely the moment a bad stretch does the most damage and there's the least time to fix it.

What to remember

• The cushion comes before investing: three to six months of essential expenses, available same-day and not fluctuating.
• There's no official threshold for expensive debt: the 7% that gets passed around is private fund-manager guidance, and Fidelity uses 6%. The break-even point is the rate of the debt itself, as long as what is saved doesn't exceed what is owed, and that interest doesn't depend on the market.
• You don't have a risk profile, you have one per goal: it's set by when you need each pot.
• Sequence of returns risk explains why when a bad stretch arrives matters as much as how big it is.

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