Emergency funds are insurance, not an investment. Stability and quick access usually beat chasing returns.
Open the ETF vs Savings CalculatorAn emergency fund has one job: be there when life goes wrong. The problem with ETFs is that life often goes wrong at the same time markets go down — recessions cause job losses and market falls simultaneously. If you lose your job in a downturn and your emergency fund is in ETFs, you're forced to sell at exactly the worst moment. This is not a hypothetical — it happened to many investors in 2008 and 2020.
The argument for ETFs in an emergency fund sounds logical: "I'll probably never need it, so why not earn higher returns?" The flaw is the word "probably." Emergency funds exist precisely for the unprobable events — and those events are correlated with market stress. Keeping your emergency fund in ETFs is optimising for the scenario where you don't need it, at the expense of the scenario where you do.
| Situation | Recommended emergency fund |
|---|---|
| Stable employment, dual income household | 3 months of expenses |
| Single income or variable income | 6 months of expenses |
| Self-employed or contractor | 6-12 months of expenses |
| Retiree drawing down investments | 1-2 years of expenses in cash/savings |
The best options for Australian emergency funds are high-interest savings accounts (currently paying 4-5% pa at major banks and neobanks) or offset accounts linked to a mortgage. Both provide instant access and the current rate environment means you're not sacrificing much return by keeping money in savings. Keep the emergency fund completely separate from your investment accounts to avoid the temptation to "borrow" from it.
Once you've ruled out ETFs, the remaining choice is which cash product to use. A term deposit's lock-in period defeats the purpose of an emergency fund — you need instant access, not a better rate. See our high yield savings vs CD comparison for why liquidity should win here.
Having a fully funded emergency fund in savings is actually the prerequisite for investing in ETFs comfortably. Once it's in place, you can invest in ETFs with genuine long-term money — knowing that a market downturn won't force you to sell. This is the foundation of a sensible personal finance approach: savings for safety, ETFs for long-term growth.
No. Savings is often safer for short timelines and emergency funds. ETFs may be reasonable for long horizons.
Many people prefer 5+ years, but it depends on volatility and your flexibility.
Use the same contributions and timeline in the ETF vs Savings calculator and compare outcomes.
No. Treat results as estimates and use conservative assumptions.
Run a conservative savings scenario and a conservative ETF scenario, then compare.