Bitcoin vs Ethereum — Which Should Australians Buy?

Bitcoin and Ethereum are the two largest cryptocurrencies by market capitalisation, and for most Australians entering the crypto space, the question isn’t whether to look at crypto — it’s which one to start with.

They’re both widely available on Australian exchanges, both regulated under ATO guidelines, and both have deep liquidity. But they serve different purposes, carry different risk profiles, and have performed very differently across market cycles.

This guide breaks down the key differences so you can make an informed decision based on your goals, not hype.

What Is Bitcoin?

Bitcoin (BTC) was the first cryptocurrency, launched in 2009 by the pseudonymous Satoshi Nakamoto. Its primary purpose is simple: to function as a decentralised, peer-to-peer digital currency with a fixed supply of 21 million coins.

Bitcoin doesn’t run smart contracts. It doesn’t host applications. It does one thing — store and transfer value — and it does that with a level of security and decentralisation that no other network has matched.

For this reason, Bitcoin is often compared to digital gold. Institutional investors, publicly listed companies, and now sovereign wealth funds hold BTC as a long-term store of value and inflation hedge.

Key Bitcoin facts:

• Fixed supply: 21 million BTC, roughly 19.7 million already mined
• Block reward halves approximately every four years (most recent halving: April 2024)
• Proof-of-Work consensus — energy-intensive but battle-tested
• Longest track record of any cryptocurrency
• Dominant narrative: digital gold / sovereign-grade store of value

What Is Ethereum?

Ethereum (ETH) launched in 2015 and was designed from the ground up to be a programmable blockchain. Rather than just moving value, Ethereum runs smart contracts — self-executing code that powers decentralised applications (dApps), DeFi protocols, NFT marketplaces, and more.

In 2022, Ethereum transitioned from Proof-of-Work to Proof-of-Stake (“The Merge”), dramatically reducing its energy consumption and changing its issuance model. ETH staked on the network earns yield, which gives it a characteristic Bitcoin lacks: a native income mechanism.

Key Ethereum facts:

• No hard supply cap — but net issuance has been deflationary at times due to fee burning (EIP-1559)
• Proof-of-Stake consensus since September 2022
• Staking yield currently around 3–4% annually (varies)
• Powers the majority of DeFi, NFTs, and Layer 2 networks
• Dominant narrative: programmable money / decentralised world computer

Bitcoin vs Ethereum: Head-to-Head Comparison

Price Performance: How Have They Compared?

Both assets have delivered extraordinary returns over long holding periods, but their performance relative to each other has shifted significantly depending on the market cycle.

During Bitcoin bull runs — particularly in 2020–2021 and 2023–2024 — BTC often leads the charge, with institutional inflows and macro narratives (inflation, dollar debasement) driving demand. Ethereum tends to outperform in the mid-to-late stages of bull markets when retail activity, DeFi usage, and NFT speculation pick up.

The ETH/BTC ratio (how much ETH costs in BTC terms) is a closely watched metric. When the ratio rises, ETH is outperforming. When it falls, BTC is doing better. Over the 2022–2024 period, BTC has been the stronger performer on a risk-adjusted basis.

What history shows:

• BTC has historically been the safer of the two in bear markets, falling less sharply
• ETH has historically had larger percentage gains in bull market peaks
• Both assets are highly correlated — when one falls hard, the other usually follows
• Neither is a “safe” asset in the traditional sense; both exhibit extreme volatility

Risk Profile: Which Is Riskier?

Both cryptocurrencies carry significant risk, but the risks are different in nature.

Bitcoin risks:

• Regulatory crackdown (though increasingly unlikely given ETF approvals)
• Concentration of mining power
• Opportunity cost — no yield, no utility beyond value storage
• Macro sensitivity — correlates with risk assets during crises

Ethereum risks:

• Competition from other smart contract platforms (Solana in particular has gained ground)
• Protocol complexity — more attack surface, more upgrade risk
• No supply cap means inflation is possible under certain network conditions
• Regulatory uncertainty around whether ETH constitutes a security (largely resolved in Australia but still debated in the US)

In terms of volatility, ETH typically swings harder than BTC in both directions. For a conservative first-time crypto buyer, Bitcoin is generally considered the lower-risk entry point — not because it’s safe, but because it’s simpler and more established.

Ethereum’s Yield Advantage

One of Ethereum’s most important differentiators is the ability to earn yield by staking ETH. When you stake ETH (either directly or through a liquid staking protocol like Lido or Rocket Pool), you help validate transactions on the network and earn a share of transaction fees and newly issued ETH.

Current staking yields are approximately 3–4% annually in ETH terms, though this fluctuates based on network activity and the total amount staked. This is not risk-free income — staked ETH is exposed to slashing penalties (though rare for well-run validators) and the price of ETH itself.

Bitcoin has no equivalent native yield. Some platforms offer BTC lending products, but these involve counterparty risk and are fundamentally different from on-chain staking.

For Australians who want to hold crypto long-term and generate some income from their holdings, Ethereum’s staking yield is a genuine advantage. However, the ATO treats staking rewards as ordinary income at the time of receipt, which adds a tax compliance consideration.

Institutional Adoption and ETF Access

The landscape for institutional crypto access changed significantly in 2024. The US Securities and Exchange Commission approved spot Bitcoin ETFs in January 2024, followed by spot Ethereum ETFs in May 2024. Australia’s own spot crypto ETF market has been developing, with several BTC and ETH ETFs now available on the ASX.

Bitcoin’s institutional adoption has a longer track record. Companies like MicroStrategy, Tesla, and Block hold BTC on their balance sheets. BlackRock’s iShares Bitcoin Trust became one of the fastest-growing ETFs in history. Sovereign wealth funds and pension funds are increasingly allocating to BTC as a diversifier.

Ethereum’s institutional adoption is catching up, particularly as its utility in tokenised assets, real-world asset (RWA) platforms, and enterprise blockchain projects becomes clearer. However, BTC remains the dominant choice for institutional treasury allocations.

For Australian retail investors accessing crypto through a CFD or ETF structure rather than direct ownership, both assets are accessible. Brokers like Pepperstone and CMC Markets offer crypto CFD trading with ASIC-regulated protections in place.

Tax Considerations for Australian Investors

The ATO treats cryptocurrency as a capital asset, not currency. This has several implications for both Bitcoin and Ethereum holders:

• Capital gains tax (CGT): Disposing of crypto (selling, trading, or using it) triggers a CGT event. If you’ve held for more than 12 months, you’re eligible for the 50% CGT discount.
• Staking income: ETH staking rewards are taxed as ordinary income at the time you receive them, based on their AUD value at receipt. When you later sell those rewards, a separate CGT event occurs.
• DeFi complexity: Using Ethereum in DeFi protocols (swapping tokens, providing liquidity) can trigger multiple taxable events. Bitcoin holders generally face fewer tax complexity issues.
• Record keeping: Both assets require detailed records of every transaction, including purchase price in AUD, date, and purpose.

From a tax simplicity standpoint, Bitcoin is the easier asset to manage. Ethereum’s utility creates more touch points with the tax system.

How to Buy Bitcoin or Ethereum in Australia

Australians have several options for gaining exposure to BTC and ETH:

1. Australian crypto exchanges
Platforms like CoinSpot, Swyftx, and Independent Reserve allow direct purchase of BTC and ETH in AUD. You hold the actual coins in your account or transfer them to a crypto wallet.

2. ASX-listed ETFs
Spot Bitcoin and Ethereum ETFs are available on the ASX, allowing exposure through a standard brokerage account. This is convenient for SMSFs and investors who prefer not to manage private keys.

3. CFD trading
ASIC-regulated brokers offer crypto CFDs, allowing you to speculate on price movements without owning the underlying asset. CFDs allow long and short positions and use leverage, which amplifies both gains and losses. Under ASIC rules, leverage on crypto CFDs is capped. Brokers offering this include Pepperstone, CMC Markets, and Vantage Markets.

4. International platforms
Platforms like Coinbase and Kraken serve Australian customers and offer wider product ranges including staking.

Bitcoin or Ethereum: Which Is Right for You?

There’s no universal right answer — it depends on your goals, risk tolerance, and how much complexity you’re comfortable with.

Consider Bitcoin if:

• You want the simplest, most established crypto exposure
• Your primary goal is long-term value storage
• You’re investing through a SMSF or institutional structure
• You prefer lower relative volatility and fewer tax complexity events
• You’re new to crypto and want to start conservatively

Consider Ethereum if:

• You want exposure to the broader DeFi and Web3 ecosystem
• You’re interested in earning staking yield on your holdings
• You have a higher risk tolerance and a longer time horizon
• You believe programmable money will play a large role in future financial infrastructure
• You’re comfortable managing the additional tax complexity

Consider both if:

• You want diversification across the two dominant crypto assets
• You have a meaningful allocation to crypto and want to split exposure
• A common starting split for crypto-focused portfolios is 60–70% BTC, 30–40% ETH

Using Stop-Losses and Risk Management

Whether you choose Bitcoin, Ethereum, or both, position sizing and risk management are essential. Both assets can fall 50–80% in bear markets — that’s not a theoretical risk, it’s happened multiple times.

If you’re trading crypto CFDs through a broker, tools like stop-loss orders and take-profit orders are critical for protecting capital. Be aware that crypto markets trade 24/7, meaning gaps and slippage can occur outside normal hours.

For direct ownership, dollar-cost averaging (buying a fixed AUD amount regularly regardless of price) is the most common approach among long-term holders and removes the need to time the market.

Hedging strategies, such as holding spot while shorting via CFDs during bear market conditions, are possible but add significant complexity and cost.

The Bottom Line

Bitcoin and Ethereum aren’t really competitors in the way the question implies — they solve different problems and serve different roles in a portfolio. Bitcoin is the conservative, institutionally backed store of value. Ethereum is the more complex, higher-upside bet on programmable finance.

For most Australians starting with crypto, Bitcoin is the logical first purchase — it’s simpler, better understood, and has the strongest institutional backing. Once you’re comfortable with BTC, adding Ethereum gives you exposure to a different set of catalysts and use cases.

What neither asset is: a guaranteed investment, a cash substitute, or a way to get rich quickly. Treat them as high-risk, high-reward speculative positions, size them accordingly, and use the same discipline you’d apply to any other volatile asset class.

Frequently Asked Questions