An emergency fund is money set aside for urgent or unexpected costs, so you do not have to borrow, or sell an investment at a bad time, when something goes wrong. ASIC's MoneySmart site, last updated 8 October 2026, describes it as a financial safety net for events such as car repairs, unexpected travel or an urgent medical bill.

The amount that is enough depends on your essential costs and how stable your income is. There is no single official dollar target. MoneySmart's starting guidance is still the place to begin, and the budget planner can turn your own expenses into a dollar figure.

This is general information only. It is not personal financial product advice, and it is not a recommendation about a particular account or insurance product.

How much is a good target?

MoneySmart's advice is to make a start even if you can only save a little, and to treat three months of expenses as a good target. If you are thinking longer term, it says it is worth having a bit more put aside, for example if you could not work for a while because you were caring for a family member.

To turn that into a number, add up the costs you would still have to meet if you cut back, such as rent or a mortgage, food, utilities, transport and insurance, then multiply by the number of months you want to cover. The budget planner does this from the expenses you mark as needs. In its documented example, essential costs of $41,240 a year imply a three-month target of $10,310.

Three months is a guide, not a rule. A single person with stable employment and family support may be comfortable starting smaller. A contractor, a sole trader, or a household with one income and high fixed costs may want a larger buffer. Income protection insurance, which MoneySmart also mentions, is a separate product with waiting periods, exclusions and premiums. It is not a substitute for cash you can access in a few days, and this article is not advice to buy or decline it.

If three months feels out of reach, a smaller, automatic amount still matters. MoneySmart's illustration is that $20 a week in a savings account becomes more than $1,000 in a year. $20 times 52 weeks is $1,040. The official Eva example on the same page is an automatic $10 transfer every payday that grew to more than $1,070 over two years, and then covered a $1,000 car repair without a credit card or a family loan.

Where to keep the money

MoneySmart suggests a separate, high-interest savings account, so the money is not mixed with everyday spending, or an offset account if you have a home loan with one. An offset balance can reduce the interest on the loan while still leaving the money available, as discussed in the offset calculator explainer. Which of those options is better for you depends on your loan, your tax position and how quickly you need access. That choice is personal, and this guide does not recommend a product.

Features that usually matter for emergency savings are:

  • you can access the money quickly, without a long notice period or a term-deposit break fee, when a genuine emergency arrives
  • the account is with an authorised deposit-taking institution covered by the Financial Claims Scheme, which protects deposits up to $250,000 per person, per institution, as explained in the guide to comparing savings accounts
  • you are less likely to spend the money on ordinary purchases, which is the point of keeping it separate

A bonus interest rate that requires no withdrawals can be a poor fit if a single emergency withdrawal would remove the bonus for that month. Read the conditions, not only the advertised rate.

Shares, crypto and other investments can fall in value just when you need the cash. They may have a place in a longer-term plan, but they are not usually a substitute for an emergency fund.

How to build it

MoneySmart's practical steps are:

  • use a separate account, or an offset account if you have one
  • automate a regular transfer from the account your wage is paid into, or ask payroll to split a small amount of each pay
  • add lump sums when they arrive, such as a tax refund, rather than treating them as extra spending money

The budget planner will show whether a regular transfer still leaves a surplus. If the plan is already in shortfall, an automatic transfer will only work if something else is reduced, or income rises.

When to use it, and how to refill it

Keep the fund for expenses you need to pay quickly when other money is not available. MoneySmart's suggestion is that if a cost can wait, you save for a few weeks and pay for it from new savings instead. A car that will not start, a sudden medical bill, or a period without work is the sort of event the fund is for. A planned holiday is not.

After you use it, the same automatic transfer that built it can refill it. In the official Eva example, the transfer stayed in place after the car repair, so the balance started to recover from the next payday.

Using a credit card, buy now pay later, or a personal loan for an emergency is sometimes unavoidable if the fund is not yet large enough. Those options have fees, interest or a credit-file effect that cash would not. If debt is already hard to manage, the National Debt Helpline on 1800 007 007 is a free financial counselling service.

Frequently asked questions

Is three months of all spending, or three months of essentials?

MoneySmart refers to three months of expenses, and suggests using a budget planner to work out monthly expenses. A tighter reading is to use essential costs, because you would usually cut discretionary spending in an emergency. The budget planner shows both figures so you can see the difference.

Should I build an emergency fund before I contribute to super or extra mortgage payments?

There is no official order that fits everyone. A small cash buffer often makes other goals safer, because you are less likely to interrupt super contributions or to redraw a loan when a bill arrives. How large that buffer should be, before you direct extra money elsewhere, is a personal decision.

Does an emergency fund have to be in a savings account?

No. MoneySmart also mentions an offset account for people who have a home loan with one. The test is whether you can access the money quickly, and whether you will leave it alone until you need it.

General information warning

This article is general information only. It is not personal financial product advice, and it is not a recommendation to open, close or use a particular account or insurance policy. It does not take into account your objectives, financial situation or needs. Consider speaking with a licensed financial adviser, or a free financial counsellor, if you are deciding how much cash to hold or how to deal with a shortfall.

Sources

  • ASIC MoneySmart, Save for an emergency fund, last updated 8 October 2026, including the three-month target, the $20 a week illustration and the official Eva example.
  • ASIC MoneySmart, Savings accounts, last updated 11 November 2026, and APRA information on the Financial Claims Scheme.
  • Never Lose Interest, Budget planner.

Last reviewed: November 2026.