An emergency fund is money reserved for unexpected, necessary and urgent costs. Calculate it from minimum monthly expenses, not salary, then multiply by the months you want covered: the usual starting point is 3 to 6 months, adjusted for income stability and dependants. Keep it separate from daily spending, available within days and without relying on selling something at a loss.
Almost everyone has heard they should have "a cushion". Far fewer people know how big theirs should be, which is why most end up with a round number picked by feel: €3,000, €10,000, whatever sounds right. The problem is that an emergency fund is not measured in euros, it is measured in months: what it protects is not an amount, it is how long you could carry on living normally if your income stopped tomorrow.
What counts as an emergency (and what does not)
An emergency fund covers what is unexpected, necessary and urgent: losing your job, a breakdown of the car you need for work, the boiler failing in January. It does not cover holidays, a new phone, or the course fees you already knew were coming in September. Those are not emergencies: they are predictable expenses, and they get planned separately.
The distinction matters because the moment the fund is used for the predictable, it stops being there for the unpredictable. And that is its only job.
How to calculate yours
It takes two steps, neither of which needs a complicated spreadsheet.
- 1. Your minimum monthly spending, not your salary. Add up only what you would still pay with no income: housing, utilities, food, transport, insurance, loan repayments. Leave out restaurants, leisure and subscriptions you could drop.
- 2. Multiply it by the months you want to cover. The most commonly quoted reference is 3 to 6 months, but it is a starting point, not a rule.
If your minimum spending is €1,400 a month, your range is €4,200 to €8,400. That is all the arithmetic there is.
Why your number is not your neighbour's
The 3-to-6-month range narrows or widens depending on how stable and predictable your situation is. These are the factors that move it most:
| Your situation | Pushes the fund… |
|---|---|
| Permanent contract, stable sector | Towards the lower end |
| Two incomes in the household | Towards the lower end |
| Self-employed or irregular income | Towards the higher end |
| Dependants | Towards the higher end |
| Owned home with possible large repairs | Towards the higher end |
If you are self-employed there is a wrinkle generic guides miss: the VAT you collect and the withholdings on your invoices are not yours. If they sit in the same account, your real cushion is smaller than it looks. Count it separately from what you will have to settle in form 303.
How long it will take to build
This is where most people lose heart: if the target is €8,400 and you can set aside €200 a month, that is 42 months. Three and a half years. Put like that it sounds impossible, but there are two better ways to look at it.
The first is that the earliest stretch is the one that changes your life most. Going from zero to one month of expenses removes most small shocks, which are the frequent ones. Months 5 and 6 add far less than month 1. So it makes sense to stage it: one month first, then three, then the full target.
The second is that it helps to see the real number rather than imagine it. You can try combinations of monthly contribution and timeframe in the savings simulator: adding €50 a month usually pulls the target forward more than people expect. And if you want to see the effect of compound interest year by year, with a chart and a table, take a look at the compound interest calculator.
Where to keep it
This guide will not tell you which product to open —that depends on your situation and is not something anyone should recommend in the abstract— but there is one functional trait that defines an emergency fund: it has to be available within days, and its value must not depend on when you withdraw it. If using it means selling something, waiting, or accepting it might be worth less than you put in, then it serves a different purpose —a perfectly valid one— but it is not your emergency fund.
What does help, and is purely practical: keep it separate from your day-to-day account. A fund you see every time you check your balance tends to spend itself.
Common mistakes
- Basing it on salary instead of minimum spending (it comes out far bigger).
- Keeping it in the main current account, mixed in with daily spending.
- Using it for predictable costs and having nothing left for real emergencies.
- Going straight for 6 months, losing momentum after two, and giving up.
- If self-employed, counting VAT and withholdings due to the tax agency as cushion.
- Never revisiting it: if your rent or circumstances change, so does the number.
