Emergency Fund Calculator

An emergency fund is a pot of money set aside specifically to cover essential living costs if your income stops — through job loss, illness, a relationship breakdown or any unexpected crisis. Financial guidance from MoneyHelper and MoneySavingExpert consistently recommends keeping 3–6 months of essential outgoings in an instant-access savings account that you never touch for normal spending. The amount you need is personal. A single renter in a stable job with no dependants might get away with 3 months. A freelancer, a parent supporting children, or anyone with a mortgage and limited job security should aim for at least 6 months — ideally closer to 9 months. The key figure is not your salary but your actual monthly essential outgoings: housing costs (rent or mortgage plus service charges), food, transport to work, utilities, insurance and any debt minimum payments. Discretionary spending — holidays, eating out, streaming subscriptions — is excluded because you would cut those immediately in a real emergency. The most common reason people do not build an emergency fund is that they do not know their target. This calculator fixes that: enter your essential monthly costs, pick your coverage target, say what you already have saved, and add a monthly contribution. The tool shows your target amount in pounds, how much you still need, and exactly how many months it will take at your current contribution rate. Where should you keep your emergency fund? It must be in an instant-access account — not an investment ISA, not a pension, not a fixed-rate bond you cannot touch. High-street easy-access savings accounts currently pay 4%–5% (check the latest rates at MoneySavingExpert). The interest is a bonus, but liquidity is the priority: if you need the money at 11pm on a Saturday you must be able to access it the same day. Once your emergency fund is full, redirect your monthly contribution toward an ISA, pension or debt repayment. An emergency fund is not an investment — it is insurance against having to raid your investments or go into debt during a crisis.