Putting $1,000 into ASX shares each month could have more impact than you imagine.
The first few years may look almost disappointingly ordinary, but I think the real strength of this strategy reveals itself over the long term.
Here is how the numbers could work.
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What would $1,000 a month become?
I will assume the portfolio earns an average return of 9% per annum, with dividends reinvested and returns compounded monthly.
At that rate, investing $1,000 at the start of every month could grow to around $190,000 after 10 years.
After 20 years, the balance could reach approximately $640,000. It would then pass $1 million after just over 24 years.
I think the striking part is how little of that final balance comes directly from the investor. Total contributions over 24 years would be around $292,000. The remaining $708,000 or so would come from investment growth.
It is important to note that a 9% return is never guaranteed, and the journey would include weak years and market falls. The calculation also excludes brokerage, fees, and tax. Even so, I believe it shows what time can do when regular investing continues.
Which ASX shares would I buy?
I would look for ASX shares with strong market positions and room to keep growing earnings.
Aristocrat Leisure Ltd (ASX: ALL) is one example. Its gaming content can be used across land-based machines, social casino apps, and regulated online gaming, giving the company several ways to expand globally.
TechnologyOne Ltd (ASX: TNE) also interests me because its software is deeply connected to the daily operations of councils, universities, and government organisations. The tech stock's annual recurring revenue and high customer retention could provide a strong base for long-term growth.
Macquarie Group Ltd (ASX: MQG) offers something different. Its ability to find opportunities across infrastructure, asset management, commodities, banking, and investment markets has helped it adapt through changing conditions.
Why the later years change everything
The first $100,000 would take a little over six years under these assumptions.
Reaching $500,000 would take around 17 and a half years. From there, the portfolio could add the next $500,000 in less than seven years.
That acceleration happens because a 9% return on a large balance can become more valuable than the monthly contribution itself.
The difficult part is staying invested long enough to reach that stage.
Foolish takeaway
I think the path to $1 million with ASX shares can be surprisingly simple, although it will never feel easy every month.
I would automate the investment, choose businesses I could comfortably own for years, reinvest the dividends, and keep buying through both exciting and frustrating markets.
At a 9% average return, $1,000 a month could become $1 million in roughly 24 years. But remember, success is more likely to come from consistency than perfect market timing.
