How Big Is Big Enough?

Three to six months is the standard answer. It's also a range wide enough to hide a $9,000 decision, and where you land inside it depends entirely on how your income behaves.

Last verified 2026-07-16

Three to six months of what, exactly

The standard guidance is three to six months of expenses. Two details decide whether that's a useful target or a number you'll never hit.

First, it's months of your essential floor — rent, utilities, food, insurance, transport, minimum debt payments — not months of your normal spending. Second, three to six is a range wide enough to hide thousands of dollars, so where you land inside it is the actual decision.

Multiply the floor by the number of months. A $2,500 floor and a four-month target is $10,000. That's it — the arithmetic is trivial and all the judgement is in the two inputs.

What pushes you up or down the range

The variable that matters most is how your income behaves, not how much of it there is.

Push toward the higher end when income itself is the risk: freelance or commission pay, a single earner, dependents whose costs can't flex, or a niche role where a job search runs long. The fund has to cover time to re-employment, and that time is what you're really insuring.

The lower end is defensible when two stable incomes would both have to fail at once, there are no dependents, and the role is one that's widely hired for. The question isn't 'how careful am I?' — it's 'how long could this realistically last?'