How much emergency fund does a family of four need?

The rule of thumb is three to six months of fixed costs, so with 3,500 euro of fixed costs 10,500 to 21,000 euro. More accurate is the shortfall after a loss of income times the months: for a single-earner family with 3,400 euro net and 2,900 euro fixed costs it is about 7,460 euro in the first year after a job loss, and often much less with two stable incomes.

Are three to six months of salary or of expenses meant?

Usually of expenses, more precisely the fixed costs that keep running. Months of salary overestimate the need if you spend less than you earn, and underestimate it if fixed costs are high.

How long does unemployment benefit I last?

For people under 50 with at least 24 contribution months, up to 12 months. The amount is about 60 percent of the flat-rate net pay, with at least one child about 67 percent.

Where is an emergency fund typically held?

Usually on a current account or savings account, because it should be available at any time. Investments with price swings or lock-ups, such as ETFs or property, therefore usually do not count as an emergency fund.

Do self-employed people need a bigger emergency fund?

In calculation terms the shortfall is higher: without voluntary unemployment insurance there is no unemployment benefit I, and the shortfall equals the full fixed costs. Many sources therefore name six to twelve months.

How big an emergency fund does a family need? Calculating instead of a rule of thumb

The rule of thumb says three to six months of fixed costs. For a household, what matters is what is actually missing after a loss of income. Three examples with numbers: a couple with two incomes, a single-earner family, a self-employed household.

Kurzantwort: The rule of thumb is three to six months of fixed costs as an emergency fund. For a family the more accurate calculation is: the monthly shortfall after a loss of income, times the months it can last. For a single-earner family with 3,400 euro net and 2,900 euro fixed costs, that is about 620 euro a month in the first year after a job loss, roughly 7,500 euro in total. For a couple with two incomes and a child, the shortfall when one person loses their job is often close to zero.

The question "how big an emergency fund do we need?" usually gets an answer in months: three to six, for families more like six. That is a usable orientation and a poor calculation, because it pretends the entire income disappears when income is lost. That rarely happens. Usually one part disappears, another part is replaced, and what remains is a shortfall. That is the number a household actually has to cover.

The calculation in two lines

First: the household's monthly fixed costs (rent or mortgage payment, insurance, groceries, transport, childcare, running contracts) minus the income that keeps coming in after the loss. What keeps coming in is the other person's income plus the replacement for the lost one: unemployment benefit I (Arbeitslosengeld I) is about 60 percent of previous net pay, about 67 percent with a child, for up to 12 months for people under 50 with 24 months of compulsory insurance. The examples below assume exactly that case. Second: that shortfall times the number of months you want to bridge, plus one-off items such as a broken washing machine or an insurance deductible.

Example 1: couple with a child, two incomes

Net 2,400 euro and 1,600 euro, 4,000 euro together, fixed costs 3,200 euro. If the person with 2,400 euro net loses the job, unemployment benefit I (approximately 67 percent) replaces about 1,608 euro. Household income is then about 3,208 euro against fixed costs of 3,200 euro: the shortfall is practically zero. The rule of thumb would say six times 3,200 euro, so 19,200 euro. The catch: this picture holds only while the second income stays stable and the benefit runs, and it does not replace a reserve for the case where both incomes wobble at once.

Example 2: single-earner family

One income of 3,400 euro net, fixed costs 2,900 euro, one child. After a job loss, unemployment benefit I pays approximately 67 percent, about 2,278 euro. The shortfall is 622 euro a month, about 7,460 euro over twelve months. For comparison: three months of fixed costs are 8,700 euro, six months 17,400 euro. After the twelve months unemployment benefit I ends; what follows is basic income support (Grundsicherungsgeld, called Bürgergeld until June 2026) with an asset test, a different calculation.

622 € — Monthly shortfall in the single-earner example, in the first year after a job loss. The rule of thumb would apply three to six times the fixed costs.

Example 3: self-employed, one income

Someone self-employed who has not voluntarily joined the unemployment insurance gets no unemployment benefit I. As a rule none of it is replaced by unemployment benefit I; whether other benefits apply depends on the individual case. In calculation terms the shortfall is then the full fixed costs. At 3,000 euro of fixed costs that is 3,000 euro a month, for six to twelve months 18,000 to 36,000 euro. That is why many sources name six to twelve times for the self-employed.

What this calculation does not cover

The loss is not always unemployment. In illness the health fund pays employees sick pay (Krankengeld) after six weeks (about 70 percent of gross, at most 90 percent of net); with permanent reduced earning capacity the statutory pension for reduced earning capacity applies, often much lower than the previous income.
Disqualification periods (Sperrzeit, not to be confused with qualifying periods): anyone who resigns or signs a termination agreement can get no unemployment benefit for up to twelve weeks.
Unemployment benefit I is calculated from a flat-rate net figure, not the actual net pay. The examples are therefore approximations.
After unemployment benefit I, assets count: basic income support has an age-based protected allowance, but not an unlimited reserve.
Even a large emergency fund is not free: money in a savings account usually has lower expected returns than money invested for the long term. That trade-off has no universal answer; it depends on income stability, household type and stage of life.

How much emergency fund does a family of four need?: The rule of thumb is three to six months of fixed costs, so with 3,500 euro of fixed costs 10,500 to 21,000 euro. More accurate is the shortfall after a loss of income times the months: for a single-earner family with 3,400 euro net and 2,900 euro fixed costs it is about 7,460 euro in the first year after a job loss, and often much less with two stable incomes.
Are three to six months of salary or of expenses meant?: Usually of expenses, more precisely the fixed costs that keep running. Months of salary overestimate the need if you spend less than you earn, and underestimate it if fixed costs are high.
How long does unemployment benefit I last?: For people under 50 with at least 24 contribution months, up to 12 months. The amount is about 60 percent of the flat-rate net pay, with at least one child about 67 percent.
Where is an emergency fund typically held?: Usually on a current account or savings account, because it should be available at any time. Investments with price swings or lock-ups, such as ETFs or property, therefore usually do not count as an emergency fund.
Do self-employed people need a bigger emergency fund?: In calculation terms the shortfall is higher: without voluntary unemployment insurance there is no unemployment benefit I, and the shortfall equals the full fixed costs. Many sources therefore name six to twelve months.

The examples are model calculations with assumed figures, not advice. Your household is different. Miravel calculates with your income, your fixed costs and the loss of income you want to play through, and shows how many months your household can carry.