How much emergency fund do I need in the UK?

A typical starting point is 3 months of essential expenses. Add a month if you have dependants, a month if your employment is contract-based, two months if self-employed. A 3+ month notice period softens the requirement by a month. Most UK households land between 3 and 6 months of cover.

Where should I keep my emergency fund?

In a high-interest easy-access savings account, separate from your day-to-day current account. The interest difference between 0% and 4-5% on £10,000 is £30-£50 per month. Easy-access matters because you may need it without notice.

Should I invest my emergency fund?

No. The point of an emergency fund is availability, not return. Investments lose value in the same conditions that often cause unemployment (recessions, sector downturns), so you'd be forced to sell at the worst time. Cash or near-cash only.

How long does it take to build an emergency fund?

At 20% of net income, most UK households build a 3-month fund in 12-18 months. The exact timing depends on income, fixed costs and whether other goals (debt repayment, pension) are competing for the same money. Saving little and often beats saving in bursts.

Emergency Fund Calculator UK (2026)

Monthly essential expenses (£)

Rent or mortgage, bills, food, transport, insurance, minimum debt repayments. Excludes discretionary spending.

Current accessible savings (£)

Do you have dependants?

Employment type

Notice period (months)

Recommended emergency fund

£6,000

Based on 3 months of cover. You currently have around 2 months covered. Near target

You’re about £2,000 short of the recommended fund. That’s your savings target.

Illustrative estimate. The right emergency fund depends on your full circumstances. For tailored advice, contact MoneyHelper.

How this is calculated

The recommendation starts at 3 months of essential expenses, which is the floor for most personal-finance guidance in the UK. From there the recommendation adjusts for the factors that make income shocks more or less likely.

Dependants add a month because a longer income gap is harder to absorb when other people depend on you. Self-employment adds two months because income is less predictable. Contract work adds one because contracts have known end dates but transition periods between them. A long contractual notice period (3+ months) softens the recommendation by a month, because the notice itself acts as a buffer.

Worked example

James spends £2,000 per month on essentials. He has one child, works on permanent terms, and has a one-month notice period. The recommendation is 3 (base) + 1 (dependants) = 4 months × £2,000 = £8,000. If James currently has £3,000 saved, he’s £5,000 short and needs to keep building.

What counts as “essential” expenses?

The expenses that don’t pause if you lose your income. Rent or mortgage. Council tax. Utilities. Food. Transport (the minimum, not the optimised version). Insurance you can’t cancel. Phone and internet. Minimum debt repayments. Childcare. Anything beyond this (streaming, eating out, hobbies, holidays) is discretionary and can be cut hard during the runway period without changing the basic shape of your life.

Related calculators and guides

Frequently asked questions

How much emergency fund do I need in the UK?: A typical starting point is 3 months of essential expenses. Add a month if you have dependants, a month if your employment is contract-based, two months if self-employed. A 3+ month notice period softens the requirement by a month. Most UK households land between 3 and 6 months of cover.
Where should I keep my emergency fund?: In a high-interest easy-access savings account, separate from your day-to-day current account. The interest difference between 0% and 4-5% on £10,000 is £30-£50 per month. Easy-access matters because you may need it without notice.
Should I invest my emergency fund?: No. The point of an emergency fund is availability, not return. Investments lose value in the same conditions that often cause unemployment (recessions, sector downturns), so you'd be forced to sell at the worst time. Cash or near-cash only.
How long does it take to build an emergency fund?: At 20% of net income, most UK households build a 3-month fund in 12-18 months. The exact timing depends on income, fixed costs and whether other goals (debt repayment, pension) are competing for the same money. Saving little and often beats saving in bursts.

Illustrative estimate, not financial advice. For tailored guidance, contact MoneyHelper (free) or a regulated financial adviser.

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