Emergency fund (Notgroschen)
An emergency fund is cash set aside in an instantly accessible account to cover a defined stretch of essential spending if income stops. Notgroschen (literally "emergency penny") is the German term for the same idea. It is not an investment — its job is to be there, unreduced, the moment it is needed, which rules out anything that can lose value or take days to reach.
Why it matters
An emergency fund is what makes the rest of a household's financial plan robust to a single bad month. Without one, a lost job or a broken appliance forces a choice between debt and selling investments at whatever price the market happens to offer that day — often the worst possible day, since job losses cluster with downturns. Sizing the fund correctly depends on knowing the consumption floor (the level of spending that cannot be cut quickly — rent, insurance, minimum groceries) rather than total spending, since that is the number the fund actually needs to cover. Holding the fund correctly depends on liquidity: the ability to convert it to spendable cash without delay or loss.
An emergency fund is also the foundation for a broader idea, self-insurance: absorbing small and moderate losses out of pocket instead of paying an insurer to carry them. A household without reserves has to insure against almost everything; one with reserves can accept more risk on the margin.
Worked example
A household with €2,500 in monthly essential expenses (its consumption floor) wants to know how large a reserve to hold. Three months of that floor is 3 x €2,500 = €7,500; six months is 6 x €2,500 = €15,000. The fund is sized against the floor, not against the household's full €4,000/month of actual spending — vacations and discretionary purchases stop the moment income does, so they do not belong in the target.
The next question is where to hold it. A comparison of storage options makes the trade-off concrete:
| Location | Instantly accessible? | Value can drop before you need it? |
|---|---|---|
| Instant-access savings account | Yes | No |
| Fixed-term deposit (locked for months or years) | No | No |
| Stock or fund portfolio | Yes (sale settles in days) | Yes |
| Cash at home | Yes | No (but exposed to theft, and loses purchasing power to inflation over time) |
Only the instant-access account satisfies both requirements at once — available immediately and stable in value at the exact moment a shock hits. A fixed-term deposit fails the access test; a portfolio fails the stability test, since markets tend to fall precisely when jobs are also being cut.
Check yourself
A household's consumption floor (essential, hard-to-cut expenses) is €2,200 per month. It targets an emergency fund of 4 months of that floor. How many euros should the fund hold?
A household sizes its emergency fund at 5 months of its total monthly spending, including vacations, dining out, and hobby subscriptions, instead of 5 months of its consumption floor. What is the main problem with this approach?
Which two properties does an account holding an emergency fund need, according to the reasoning behind holding it as cash rather than as investments? (Select 2.)
A household with no emergency fund faces even a small chance of loss on almost every front (a broken appliance, a delayed paycheck, a minor medical bill) because it has no buffer to absorb any of them. How does building an emergency fund change this, in terms of self-insurance?