How much should I have in an emergency fund?
Enough to cover three to six months of essential spending — not of income — with the number moving toward six or more when your income is variable or your household has one earner.
The useful unit is essential spending, not salary. What a shock has to be absorbed by is the rent, the food, the insurance and the minimum debt payments, and for most households that is well under take-home pay. Sizing the buffer against income overstates it, which is how people conclude the target is unreachable and hold nothing at all.
The reason to hold it is not that cash is a good asset. It is that without it, an ordinary event — a boiler, a car, three weeks between contracts — forces a sale of investments at whatever price the market happens to be offering, or borrowing at a rate that undoes years of returns. The buffer is what makes every other decision on this site survivable.
Where it sits matters less than that it exists and can be reached in a day. A savings account paying something is fine; a twelve-month fixed term is not an emergency fund.
When the answer is different
- If your income is unusually secure — tenured, salaried, a household with two independent earners — the lower end of the range is defensible.
- If you carry debt above roughly 15% a year, a smaller starter buffer of one month, then clearing that debt, then completing the buffer, generally beats holding six months of cash against a card charging 20%.
Put your own numbers to it
Every answer here is general. These are not.
- Emergency fund sizer
How much cash should I actually hold?
- Debt payoff planner
How long until I am debt free, and what does the order cost me?
The research this rests on
Each note states its claim, rates how strong the evidence actually is, and lists the conditions under which it fails.
- A cash buffer is what makes every other decision survivable
A large share of households cannot absorb a moderate unexpected expense, and that fragility forces asset sales and high-interest borrowing at the worst moments. (strong)
- Clearing debt is a guaranteed return; investing is not
Paying down a debt returns its interest rate with certainty, which should be compared to expected investment returns on a risk-adjusted basis, not a raw one. (strong)