An emergency fund is the buffer that turns a crisis into an inconvenience: the boiler dies, the car fails its MOT, or the income stops, and you reach for savings instead of a credit card. Here is how big it should be, what counts, and where to keep it.
The standard guideline is 3 to 6 months of essential spending, held in cash you can reach quickly. Not 3 to 6 months of your income, and not of everything you spend, just the essentials you couldn't switch off. Where you land in that range depends on how stable your situation is:
Base the fund on the costs you'd still have to pay if your income stopped tomorrow:
Leave out the things you'd cut in a real emergency: holidays, subscriptions, meals out, new clothes. That's the difference between an emergency fund and a general savings pot.
Essential spending of £2,000 a month means a target of £6,000 (3 months) to £12,000 (6 months).
Saving £300 a month from a standing start, six months' cover takes around 3½ years, so start with a smaller milestone first.
Enter your monthly spending and what you can save to see your target, the gap, and how long it'll take to get there.
Open the Emergency Fund calculator →An emergency fund is for safety, not growth, so it belongs in easy-access cash: an instant-access savings account or a Cash ISA you can reach within a day or two without penalty. A competitive rate is a bonus, but the priorities are that it's safe and available. Don't invest it, because markets can fall exactly when you need the money, and don't lock it away in a fixed-term account you can't touch.
If you're carrying expensive debt like credit cards, a sensible order is:
Once your emergency fund is in place, you can point spare money at longer-term goals with more confidence. See what it could become with Compound Growth.
3 to 6 months of essential spending. On £2,000 a month of essentials, that's £6,000 to £12,000.
Housing, council tax, utilities, food, insurance, transport and minimum debt payments, the things you'd still pay if your income stopped.
Easy-access cash savings or a Cash ISA, not investments, so it's safe and available when you need it.
Build a £1,000 buffer, clear expensive debt, then build the full fund.
Illustrative and educational only, not financial advice. The 3 to 6 month guideline is a rule of thumb; the right amount depends on your job security, dependants and fixed costs. Keep an emergency fund in accessible cash savings. Always do your own research or speak to a qualified adviser.