How much should I invest per month to reach $1,000,000?

This is a classic compounding goal. The monthly number depends mostly on your timeline and your return assumptions.

Monthly investment needed to reach $1,000,000

Timeframe	Monthly investment (7%)	Total contributed
10 years	~$5,778/month	$693,360
15 years	~$3,155/month	$567,900
20 years	~$1,920/month	$460,800
25 years	~$1,234/month	$370,200
30 years	~$820/month	$295,200
35 years	~$555/month	$233,100
40 years	~$381/month	$182,880

Lump sum needed today to reach $1,000,000

Timeframe	Lump sum needed today (7%)
10 years	~$508,300
15 years	~$362,400
20 years	~$258,400
25 years	~$184,200
30 years	~$131,400
35 years	~$93,700
40 years	~$66,800

What it takes to reach $1,000,000

Reaching $1,000,000 is the ultimate investment milestone for many Australians — and the numbers show that starting early makes it surprisingly achievable. Over 40 years it takes just $381 a month, contributing only $183,000 of your own money with compounding adding the remaining $817,000. Over 30 years it's $820 a month, and over 20 years $1,920 a month. The lump sum table is equally striking — investing $66,800 today at 7% reaches $1,000,000 in 40 years. Whether your timeline is long or short, use the calculator above to find your exact pathway to a million dollar portfolio.

Start with a realistic range

Instead of one answer, test 3 scenarios: conservative, mid, and optimistic. The “right” number is usually a range.

Try these three plans

Plan A: longer timeline + conservative returns
Plan B: mid timeline + mid returns
Plan C: shorter timeline + optimistic returns

Then decide what’s feasible for your budget and risk tolerance.

Use the retirement calculator too

$1,000,000 may or may not be enough depending on your spending. Use Retirement to estimate what portfolio size matches your desired income.

FAQ

Is $1,000,000 always enough?

Not necessarily. It depends on how much income you need and for how long. Try the Retirement calculator.

What timeline should I use?

Pick a target age (e.g. 60, 65, 70). Longer timelines usually reduce the required monthly amount.

Should I include an initial balance?

Yes, if you already have savings/investments. Even a small starting balance helps.

Does the result guarantee anything?

No. It’s an educational model that uses your return assumption as an average rate.

What’s the best next step?

Pick a conservative plan you can actually stick with, then increase contributions gradually over time.