Should I save or pay off debt first?

Build a small buffer of a few hundred pounds first so surprises do not go on credit, then prioritise clearing high-interest debt, then return to the full fund.

Three months of essential outgoings suits most employed households; six months is safer if you are self-employed or your income varies.

Where should I keep it?

An easy-access savings account with an FSCS-protected provider, separate from your current account, paying a competitive rate.

How to build an emergency fund in the UK

5 min read

An emergency fund is what stops a broken boiler turning into credit card debt. It does not need to be large to be useful: the first few hundred pounds absorbs most of the shocks that would otherwise be borrowed for at 25% APR.

1. Set a first target you can actually reach

The classic advice of three to six months of essential spending is a good destination but a demoralising starting point. Break it into stages: £500 first, then one month of essentials, then three.

Base the figure on essential outgoings — rent or mortgage, bills, food, transport, minimum debt payments — not your total spending.

2. Pay yourself first, automatically

Set a standing order for the day after payday. Money that has to survive the month before being saved usually doesn't. Start with an amount that feels almost too small to matter and increase it after each pay rise.

Round-up features and separate savings pots in banking apps work well because they remove the decision entirely.

3. Keep it somewhere boring and reachable

Emergency money belongs in an easy-access savings account, not in investments and not in your current account where it blends into spending money.

Compare the rate against the top of the market — default high-street instant-access rates are often far below the best available. Check that the provider is covered by the Financial Services Compensation Scheme.

A cash ISA can shelter interest from tax if your savings interest is likely to exceed your Personal Savings Allowance.

4. Fund it from cuts, not willpower

The most reliable source of savings is money you were already spending without noticing. Cancel dormant subscriptions, re-shop insurance, move off out-of-contract broadband, and send the difference straight to the fund by standing order the same day.

If you have expensive debt, split the effort: build a small buffer first so emergencies do not go back on the card, then focus on clearing the debt.

5. Define what counts as an emergency

Write it down: unexpected, necessary and urgent. A boiler repair qualifies; a sale does not. Agreeing the rule in advance is what keeps the fund intact.

When you do spend it, restart the standing order immediately rather than waiting for a fresh start date.

See this applied to your own money

Ai Money Saver checks your income and outgoings — typed in, from a bank statement, or talked through — and shows where you're likely overpaying before you pay anything.

Start assessment Use a bank statement

Frequently asked questions

Should I save or pay off debt first?: Build a small buffer of a few hundred pounds first so surprises do not go on credit, then prioritise clearing high-interest debt, then return to the full fund.
How much is enough?: Three months of essential outgoings suits most employed households; six months is safer if you are self-employed or your income varies.
Where should I keep it?: An easy-access savings account with an FSCS-protected provider, separate from your current account, paying a competitive rate.