How big should an emergency fund be?

Resources · Home loans and saving · 5 min read Starting out

Key points

• An emergency fund is cash set aside for unexpected costs or a drop in income.
• A common guide is three to six months of essential expenses, but the amount that suits you depends on your situation.
• Essential expenses are usually far lower than total spending, so the target is often smaller than people fear.
• A small starter fund helps straight away, even while you work towards a bigger one.

What an emergency fund is for

An emergency fund is for the stuff you didn’t plan for. The car breaks down. A medical bill arrives. The fridge dies. Or your income stops for a while after a job loss or illness.

Without one, those costs usually land on a credit card or a loan, and a one-off problem turns into months of interest. With one, you pay the bill and get on with your life.

It isn’t for holidays, sales or things you know are coming, like an annual insurance bill. Handle those as planned savings goals instead.

Start with your essential expenses

Size your emergency fund in months of essential expenses, not months of income. Essentials are what you’d still have to pay if money got tight:

• Rent or home loan repayments
• Utilities, phone and internet
• Groceries
• Transport to work
• Insurance
• Minimum repayments on debts
• Childcare and other fixed commitments

Leave out anything you could pause in a pinch. Eating out, subscriptions and extra debt repayments can all wait.

A worked example

Assumptions:

• Essential expenses: $3,200 a month
• Saving rate: $300 a month, added at the end of each month
• Interest, where shown: 4% a year, paid monthly, on the balance at the start of each month

The same maths works in any currency.

With interest at 4% a year, you reach the three-month target in 31 months instead of 32. By then the balance is $9,780.34, and $480.34 of that is interest. Nice, but notice who did the heavy lifting. Interest helps a little. The money you put in does most of the work. Where to keep an emergency fund looks at the account side.

Why three to six months is only a guide

You’ll see “three to six months” quoted everywhere. Treat it as a starting point, not a rule.

Some people aim higher. Maybe their income varies because they’re self-employed, on commission or doing casual work. Maybe they’re the only earner in the house, or they work in an industry where finding a new job can take a while. Dependants push the number up. So do health conditions that can lead to big bills, or an older car or home that’s likely to need repairs.

Others aim lower. Two stable incomes in one household make a real difference. So does strong job security or skills that are in demand. Generous sick leave or income protection insurance can shrink the gap, as can other savings you could get to quickly.

Where you live matters too. Healthcare costs, unemployment benefits and sick-pay rules differ a lot between countries, and they change how big a gap your own savings need to cover.

Starting small

Six months of expenses can feel miles away, especially when you’re paying off debt at the same time. So don’t start there. Pick a smaller first target, like $1,000 or one month of essentials.

At $50 a month, a $1,000 starter fund takes 20 months. At $100 a month, it takes 10. Even that much covers a lot of common surprises, a car repair or a vet bill, without borrowing anything new.

Emergency fund or paying off debt?

If you’re carrying high-interest debt, holding cash that earns less than the debt costs can feel backwards. It’s a real trade-off, and it cuts both ways.

Holding cash costs you something, because the debt keeps charging interest. But holding no cash means the next surprise goes straight onto a card, and that can wipe out the progress you’ve made.

Some people build a small starter fund first, put everything else towards debt, then come back and build the full fund. Others split spare money between both. Which suits you depends on how steady your income is and how high your debt rates are.

If you can’t cover your repayments at all, free debt help is available and confidential.

Topping it back up

Once you use the fund, it’s done its job. That’s the whole point. Then you rebuild it, usually at the same steady pace as before.

Common questions

How many months should an emergency fund cover?

A common guide is three to six months of essential expenses. You might aim higher or lower depending on how steady your income is, who depends on you and where you live.

Should I build an emergency fund or pay off debt first?

It’s a trade-off. Some people build a small starter fund, then focus on debt, then come back to the full fund. Others split spare money between both.

What counts as an emergency?

Unexpected costs or a drop in income. Think a car repair, a medical bill or a gap after losing a job. Known costs like holidays or an annual bill are better handled as planned savings.

Try it

The emergency fund calculator works out a target from your own essential expenses and shows how long it could take to build. If you’re paying down debts as well, you can find your Freedom Date.

General information only, not financial advice. Your situation is your own.