Question 1

How many months should I save?

Accepted Answer

The standard advice is 3–6 months. Renters with stable employment are often fine at the lower end. Homeowners, the self-employed, or those with variable income should aim for 6–12 months to cover unexpected repairs (boiler, roof) on top of income disruption.

Question 2

What counts as an essential expense?

Accepted Answer

Anything you genuinely cannot stop paying: mortgage or rent, energy, water, council tax, and insurance. Food and transport could be included too if you want a more conservative figure.

Question 3

Where should I keep my emergency fund?

Accepted Answer

A high-interest easy-access account or a cash ISA (up to £20,000/year for 2026/27). Avoid locking it in a fixed-rate bond — you need instant access. From April 2027 under-65s will be capped at £12,000 per year in cash ISAs.

Question 4

Should I invest my emergency fund?

Accepted Answer

No. The purpose of an emergency fund is certainty and liquidity, not growth. Keeping it in cash means it is always available at full value, regardless of market conditions.

Question 5

What if I have a mortgage?

Accepted Answer

Aim for at least 6 months. Homeowners face costs that renters do not — boiler breakdowns, roof repairs, and structural issues can easily cost thousands. A larger buffer lets you absorb these without taking on debt or touching investments.

Emergency Fund Calculator