By Philippa Billings, Head of Advice, Otivo
The question that stops more would-be investors than any other isn't which investment — it's is now a good time. It's also a question with no answer, asked fresh every month, generating anxiety on every branch — invest and watch prices fall, or wait and watch them rise. Dollar cost averaging is the strategy that deletes the question. A fixed amount, invested at fixed intervals, in all market weather — $200 on the first of every month, whether headlines are euphoric or apocalyptic. It won't make anyone clairvoyant. It makes clairvoyance unnecessary, which turns out to be worth more.
Dollar cost averaging means investing a fixed dollar amount at regular intervals regardless of market prices. When prices are high the fixed amount buys fewer units, and when prices fall it buys more, so the investor accumulates at an average cost without attempting to time entries. Its main benefit is behavioural — converting investing into an automatic habit that removes emotion-driven decisions.
How does dollar cost averaging work?
The mechanics fit in a sentence — same amount, same interval, no exceptions. The interesting part is what the fixed amount does as prices move. Purely as illustration, $200 a month buying units at $10 gets 20 units; the next month at $8, it gets 25; the month after at $12.50, it gets 16. The fixed dollars automatically buy more when prices are low and fewer when they're high — a mild contrarian tilt built into the arithmetic, executed without anyone feeling brave.
Across many months, the investor's average cost per unit settles near the average of the prices the market offered — never the best price, never the worst, and never dependent on a single entry day being lucky. For money arriving from income — which is how most Australians invest anyway, payday by payday — the schedule isn't even a strategy so much as an acknowledgment of reality dressed as one. Compulsory super has been dollar cost averaging on the country's behalf for decades.
What is the strategy actually buying?
Not a mathematical edge — an emotional circuit breaker, and the distinction deserves honesty. For an investor holding a lump sum, investing it immediately has tended to come out ahead of drip-feeding more often than not, simply because markets spend more time rising than falling and money on the sidelines misses that. Anyone claiming dollar cost averaging reliably beats lump-sum investing is overselling it.
What it reliably beats is the realistic alternative — which for most people isn't a boldly invested lump sum but paralysis, or the timing whiplash of buying excitement and selling fear. The schedule removes the decision that produces those errors. There's no moment of commitment to flinch at, no headline that changes the plan, no bottom to call. Regret is pre-managed in both directions — a fall after this month's purchase means next month buys cheaper; a rise means the earlier purchases already caught it. ASIC's MoneySmart guidance points at the same target — the costliest investing behaviour is abandoning the plan at emotional extremes, and a standing order has no emotions to abandon it with.
How does someone set it up well?
Four settings, decided once.
The amount — sized to survive bad months, because the strategy's entire value lives in its continuity. A sustainable $200 beats an aspirational $500 that stops in the first correction.
The interval — monthly or per-payday are the natural rhythms, aligning purchases with income and making the whole thing one more automatic transfer in the pay-yourself-first plumbing.
The destination — the strategy schedules purchases; it doesn't pick them. It pairs naturally with broad, diversified vehicles built for accumulation, of the kind covered in this series' ETF explainer, rather than concentrated bets that no schedule can make safe.
The automation — a standing instruction rather than a monthly intention. Brokerage platforms increasingly support automatic investing; where they don't, a recurring calendar task on payday is the manual version. The less the plan depends on remembering and mood, the more it resembles the thing that works.
When is the schedule tested, and what then?
In falling markets — which is precisely when it's doing its best work and feels worst. The months when continuing seems reckless are the months the fixed amount is buying the most units, and the whole historical case for the strategy is built on those purchases being the ones a future recovery rewards most. The investor who pauses in downturns and resumes in recoveries has quietly reinvented buying high, one considered decision at a time.
Which is why the real preparation isn't market knowledge — it's making sure the schedule never has to stop for reasons outside the market. A standing buffer, expensive debts under control, and an amount the budget genuinely spares are what let the standing order stand through anything. That ground-readiness question — what to buffer, what to repay, what to invest, in what order — is personal, and it's the one Otivo's platform works through as regulated advice under AFSL and Australian Credit Licence No. 485665, across a household's whole position.
Frequently asked questions
Is dollar cost averaging better than investing a lump sum?
Historically, immediate lump-sum investing has come out ahead more often, because markets rise more than they fall. Dollar cost averaging trades some expected return for a smoother experience and the removal of timing regret — a trade many investors accept knowingly, especially those who'd otherwise never commit the lump sum at all.
Does the strategy work for super contributions?
Super contributions already are dollar cost averaging — regular amounts invested each pay cycle through market conditions of every kind. Voluntary additions like salary sacrifice extend the same mechanism with a tax concession attached.
How long should dollar cost averaging run?
It's an accumulation habit rather than a program with an end date — most practitioners run it for as long as the goal remains distant, adjusting the amount as income changes. The approach suits horizons measured in years; money needed soon doesn't belong on the schedule at all.
Sources
- ASIC MoneySmart — How to invest. moneysmart.gov.au/how-to-invest
- ASIC MoneySmart — Choose your investments. moneysmart.gov.au/how-to-invest/choose-your-investments
- ASIC MoneySmart — Shares. moneysmart.gov.au/shares
Disclaimer
The information in this communication is current as at July 2026 and has been prepared by Otivo Pty Ltd ABN 47 602 457 732, AFSL and Australian Credit Licence No. 485665. This content is general information only and has been prepared without taking into account your objectives, financial situation or needs. It is not personal financial or taxation advice and should not be relied on as such. Before acting on any information, you should consider its appropriateness having regard to your personal circumstances. This material must not be reproduced in whole or in part, or posted on any social media platform, without the prior written consent of Otivo Pty Ltd.