An emergency fund is money set aside for costs you can’t plan for: a boiler breaking down, a car repair, a gap between jobs. Its job is to stop a surprise bill becoming debt, so it needs to be available at once, not to earn the most interest.
How much to keep
Work from your essential monthly spending, not your income:
- rent or mortgage
- council tax, energy, water, phone and broadband
- food and household basics
- transport to work
- insurance
- the minimum payments on any debts
Then choose how many months to cover. Our suggestion:
| Your situation | Target |
|---|---|
| Starting out, or paying off expensive debt | A starter fund big enough for one unexpected bill |
| Steady job, no dependants | 3 months of essential spending |
| Dependants, a single income, or renting with little notice | 3 to 6 months |
| Self-employed, contract or seasonal work | 6 months or more |
Example. If your essentials come to £1,600 a month, 3 months is £4,800 and 6 months is £9,600.
Where to keep it
An emergency fund needs to be safe, separate and instantly available:
- An easy access savings account with no limit on withdrawals. The average instant access rate was 2.07% in August 2026; the best accounts pay more, so it’s still worth choosing a good one.
- At a UK-authorised bank or building society, so it’s protected by the FSCS up to £120,000 per person, per bank (FSCS protection).
- Separate from your current account, so it doesn’t get spent on everyday things. Check how quickly a withdrawal reaches your current account.
Notice accounts and fixed rate bonds don’t let you reach the money straight away, and investments can fall in value just when you need them, so they suit money beyond the fund rather than the fund itself.
Building it up
- Save automatically. A standing order on payday moves the money before you can spend it.
- Start small. £25 a week is £1,300 in a year. Use the compound interest calculator in goal mode to see how long your target will take.
- Top it up with windfalls, such as a tax refund or a bonus.
- If you’re on Universal Credit, a Help to Save account adds a government bonus to what you save.
Using it, and topping it up
Use the fund for genuine emergencies: an essential cost you couldn’t plan for, or a loss of income. A holiday or a planned purchase is better saved for separately. After you use it, rebuild it before going back to other savings goals.
Emergency savings, debt and benefits
Debt. Savings rates are usually far below what credit cards and overdrafts charge, so paying off expensive debt usually saves more than saving earns. The exception is a small starter fund: without one, the next surprise bill tends to go back on the card. See pay off debt or save.
Universal Credit. Savings of £6,000 or less don’t affect your Universal Credit. Savings between £6,000 and £16,000 reduce it, and above £16,000 you usually can’t get it: see Universal Credit and savings.
Related guides
- Savings accounts guide: the account types, average rates, tax and protection in one place
- Easy access savings: the account type for an emergency fund
- Help to Save: a government bonus for people on Universal Credit
- Pay off debt or save?: which comes first