How big should your emergency fund really be?

“3 to 6 months of expenses” is the number almost everyone hears first about emergency funds — and it’s a reasonable starting point. But it’s a rule of thumb built around one assumption: that income is steady. The moment that assumption doesn’t hold, the right target can look very different.

Why a single number doesn’t fit everyone

The 3–6 month range comes from a simple picture: a salaried employee with predictable pay loses income only in a fairly narrow set of scenarios — job loss, medical leave — and typically has some notice or severance before the gap actually bites. Someone with irregular income — a freelancer, a business owner, someone on commission — faces income gaps far more often, with far less warning, which is why 9–12 months is the more commonly cited target in that situation.

The underlying logic is the same for both: size the fund against how long a realistic income gap could last, not against a number that sounds safe. A stable salary and an unpredictable freelance income represent two ends of a spectrum, and the target should move along with where you actually sit on it.

Same saver, two coverage targets

The math itself doesn’t change — only the coverage-months input does. Take one saver with ₹40,000 in essential monthly expenses, ₹1,00,000 already saved, and ₹10,000 set aside every month at a conservative 5% return — and just change how many months of coverage they’re aiming for.

Neither saver did anything wrong — the doubled target and the more-than-doubled timeline are simply what a wider income-gap risk actually costs to insure against. Someone with irregular income who stopped at the 6-month target most people quote would be carrying real risk they hadn’t actually priced in.

What should actually move your target

A few honest questions do more to size this correctly than any fixed rule: How predictable is your income, realistically — not on a good year, but on a bad one? How many people depend on it? How quickly could you replace it if it stopped? Someone salaried with a working spouse and no dependents can often sit comfortably at the lower end of even the standard range; a sole earner with irregular income and dependents usually needs to sit well above it.

The number to start from isn’t 3, 6, or 12 — it’s your own essential monthly expenses, multiplied by however many months your specific income situation could realistically stay interrupted.