Sizing an emergency fund
An emergency fund is the money that stops a bad month from becoming a debt spiral. It is sized on your committed monthly outgo — expenses plus EMIs — not on your income, and it belongs somewhere boring and instantly accessible.
Formula
Target = (monthly expenses + monthly EMIs) × months of cover
- Include rent, groceries, utilities, school fees, insurance premiums, and every EMI
- Exclude discretionary spending you would cut in a crisis
- 3 months is a minimum; 6-12 months suits variable income or a single earner
How many months you need
Three months is the floor for a dual-income household in stable salaried jobs. Six months suits most people. Nine to twelve is appropriate if you are the only earner, work on contract, run a business, or work in a sector with long hiring cycles.
EMIs are the reason to be generous. Expenses can be trimmed in a crisis, but a home loan instalment cannot, and missing one damages your credit record for years.
Where to keep it
Split it: roughly one month of outgo in a savings account for instant access, and the rest in a liquid fund or short fixed deposits that can be broken without much loss. A sweep-in account works well too.
Keep it out of equity, out of long-tenure deposits with penalties, and out of anything you would hesitate to touch. The purpose is availability, not return — earning 6% instead of 12% on six months of expenses is the cost of not having to sell investments at the worst possible time.
It is not a substitute for insurance
A single hospitalisation can exceed a year of expenses, which is why health insurance sits alongside the fund rather than being replaced by it. Term insurance covers the risk to your family’s income.
With adequate health cover in place, the emergency fund is left to do its real job: bridging a job loss, an income gap, or a large unbudgeted repair.
Building and rebuilding it
Saving ₹20,000 a month towards a ₹4.8 lakh target, starting from ₹1 lakh, gets there in about 18 months. Bonuses, tax refunds, and arrears are the fastest way to shorten that.
When you use the fund, treat rebuilding it as the first priority — ahead of resuming investments. Also review the target annually, since rent increases and new EMIs raise your monthly outgo.
Example: ₹80,000 monthly outgo
- Monthly expenses
- ₹60,000
- Monthly EMIs
- ₹20,000
- Total committed outgo
- ₹80,000
- 6-month target
- ₹4,80,000
- Existing fund
- ₹1,00,000 (1.25 months)
- Time to fill at ₹20,000/month
- ≈ 18 months
A ₹1 lakh fund against an ₹80,000 monthly outgo covers barely five weeks. Until the target is met, treat the shortfall as your most urgent financial task.