How to build a $500,000 ASX share portfolio from scratch

Getting rich in the share market isn't as hard as you might think.

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Building a $500,000 ASX share portfolio may seem like an impossible goal, but with patience, consistency, and the power of compounding, it could be more achievable than you might think.

One of the best ways to grow wealth in the stock market is through regular investing.

By committing to investing $750 per month in a mix of quality ASX shares and ASX ETFs, you could build a half-million-dollar portfolio in just under 20 years.

The power of consistency and compounding with ASX shares

Investing isn't necessarily about finding the next hot stock or timing the market perfectly—it is about consistency and time in the market. History has shown that the ASX has delivered average annual returns of around 10%.

And while there is no guarantee that this will continue in the future, I feel it is a fair return to target.

With that in mind, starting from scratch and investing $750 per month would turn into $500,000 in just under 20 years.

What to invest in?

To build a well-rounded portfolio, it could be a good idea to invest in a mix of individual ASX shares and ASX ETFs that offer broad market exposure.

In respect to ASX shares, investors may want to consider companies with sustainable competitive advantages, strong balance sheets, and long-term growth prospects.

Companies such as CSL Ltd (ASX: CSL), Life360 Inc. (ASX: 360), ResMed Inc. (ASX: RMD), and Xero Limited (ASX: XRO) are names that come immediately to mind and could be worth further investigation.

Diversifying with ETFs

To reduce risk and gain exposure to global megatrends, a selection of ETFs can provide diversification across sectors and geographies.

The VanEck Morningstar Wide Moat ETF (ASX: MOAT) could be a good option. It invests in high-quality U.S. companies with strong competitive advantages.

There's also the BetaShares Nasdaq 100 ETF (ASX: NDQ) to consider. It provides exposure to top U.S. tech companies like Apple (NASDAQ: AAPL), Microsoft (NASDAQ: MSFT), and Nvidia (NASDAQ: NVDA).

And the BetaShares Global Cybersecurity ETF (ASX: HACK) is another to consider. It targets the booming cybersecurity industry with companies like Palo Alto Networks (NASDAQ: PANW) and CrowdStrike (NASDAQ: CRWD).

Foolish takeaway

Building a $500,000 portfolio doesn't require a huge lump sum—just consistent investing, patience, and smart asset allocation.

By sticking to a disciplined monthly investment plan and focusing on high-quality ASX shares and ETFs, you could set yourself up for significant long-term wealth.

Start today, stick to your plan, and let the power of compounding work for you.

Motley Fool contributor James Mickleboro has positions in BetaShares Nasdaq 100 ETF, CSL, Life360, ResMed, and Xero. The Motley Fool Australia's parent company Motley Fool Holdings Inc. has positions in and has recommended Apple, BetaShares Global Cybersecurity ETF, BetaShares Nasdaq 100 ETF, CSL, CrowdStrike, Life360, Microsoft, Nvidia, ResMed, and Xero. The Motley Fool Australia's parent company Motley Fool Holdings Inc. has recommended Palo Alto Networks and has recommended the following options: long January 2026 $395 calls on Microsoft and short January 2026 $405 calls on Microsoft. The Motley Fool Australia has positions in and has recommended BetaShares Global Cybersecurity ETF, BetaShares Nasdaq 100 ETF, ResMed, and Xero. The Motley Fool Australia has recommended Apple, CSL, CrowdStrike, Microsoft, Nvidia, and VanEck Morningstar Wide Moat ETF. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips.

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