Emergency Fund: Why Three Months of Bills Is a Good Target

An emergency fund is money you keep aside for the things you cannot plan: a broken boiler, an urgent car repair, or a month where your pay is late or lower than usual. The hardest part is deciding how much to aim for. A practical answer is to base it on your bills: three months of essential bills means your home keeps running even if your income stops for a while.

This guide shows how to work out your number, how to build towards it, and where to keep it.

Why base it on your bills?

There is no official amount everyone should save. A target based on your own bills has two advantages:

1. It is real. It reflects your rent, your council tax and your energy, not an average.
2. It answers the question that matters. If your income stopped, how long could you keep the essentials paid?

Three months is a target many people can reach over a year or two, and it gives you time to sort things out after a job loss or illness.

Step 1: Work out one month of essential bills

List the bills you would keep paying even in a hard month. Citizens Advice suggests gathering your bank statements, payslips and bills before working out a budget.

Essential bill	Monthly
Rent	£700
Council tax (yearly £1,500 ÷ 12)	£125
Gas and electric	£95
Water	£40
Broadband and phone	£45
Insurance	£25
One month of essential bills	£1,030

These amounts are made up. Use your own. Leave out things you could cut quickly in an emergency, like streaming subscriptions.

Step 2: Set your targets

• First target: one month of essential bills. In the example, £1,030.
• Full target: three months. In the example, £3,090.

Starting with one month makes the goal feel reachable, and one month already covers most broken-boiler-sized emergencies.

Step 3: Build it automatically

Saving works best when it happens before you can spend the money:

1. Set up a standing order from your main account to your savings account for the day after payday.
2. Start small if you need to. £25 or £50 a month adds up, and you can raise it later.
3. Add windfalls. A tax refund, a bonus, or the extra payday if you are paid every four weeks. Our four-weekly pay guide explains where that extra payday comes from.

Help to Save, if you get Universal Credit

GOV.UK describes Help to Save as a government-backed savings account for certain people receiving Universal Credit. According to GOV.UK:

• you can save between £1 and £50 each calendar month, and you do not have to pay in every month
• you get 50p for every £1 you save, paid at the end of the second and fourth years
• the account closes 4 years after you open it
• you can withdraw money, but only to your bank account

For an emergency fund, that 50% bonus makes a real difference. If you qualify, it is worth checking first.

Where to keep it

Keep your emergency fund:

• separate from your everyday account, so it does not get spent by accident
• easy to access, so you can reach it within a day or two when something goes wrong
• protected: the Financial Services Compensation Scheme protects eligible deposits up to £120,000 per person per firm

A separate easy-access savings account with your bank, or with another bank, works for most people.

Emergencies versus bills you know are coming

An emergency fund works best when it is only for emergencies. Bills you know about, such as a yearly TV licence or car insurance, are better covered by putting a little aside each month. Our guide to a separate bills account shows how to include yearly bills in your monthly transfer, so they never need to come out of your emergency fund.

If you use it, rebuild it

When you take money out for an emergency, restart your standing order straight away, even at a lower amount. The fund only works if it is there next time.

Keep your bill total current

Your target is only as accurate as your bill list. When rent, council tax or energy prices change, your three-month target changes too. A bill tracker like Billo keeps all your bills in one list and shows what is due before payday and what is left after bills, which makes it easy to recalculate your target and see how much you can save each month.

Summary

• Aim for three months of essential bills, starting with one month.
• Save automatically the day after payday.
• If you get Universal Credit, check Help to Save: 50p for every £1 you save.
• Keep it separate, easy to access and protected.