What Is Cryptocurrency? (2026 Beginner Guide)

Updated: January 2026 • CoinTrack Australia

Cryptocurrency is digital money secured by blockchain technology. This guide explains what cryptocurrency is, how it works, and why it has become popular in Australia. You will also learn how to buy cryptocurrency safely, what risks to consider, and how to get started with beginner‑friendly platforms.

What is cryptocurrency

Cryptocurrency is a digital asset that allows people to send and receive payments without using a bank. It runs on decentralised networks called blockchains. These networks record every transaction in a secure, transparent, and permanent way.

How cryptocurrency works

Most cryptocurrencies operate on a blockchain. A blockchain is a public ledger that stores all transaction history. When you send cryptocurrency, the network verifies the transaction and adds it to the ledger.

• Blockchain: A shared database that records transactions.
• Wallet: A tool used to store and manage cryptocurrency.
• Private key: A secret code that proves ownership of your crypto.
• Public address: The address you share to receive crypto.

Types of cryptocurrency

There are several major types of cryptocurrency used today.

• Bitcoin (BTC): The first and most valuable cryptocurrency.
• Ethereum (ETH): A smart‑contract platform used for DeFi and NFTs.
• Stablecoins: Cryptocurrencies designed to maintain a stable value.
• Altcoins: All cryptocurrencies that are not Bitcoin.

Why people use cryptocurrency

Many Australians use cryptocurrency for investment, payments, and access to new financial tools. Cryptocurrency also offers more control over your money.

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How to buy cryptocurrency in Australia

Buying cryptocurrency in Australia is simple. You can use an AUSTRAC‑registered exchange like Digital Surge to deposit AUD and purchase crypto instantly.

1. Create a Digital Surge account.
2. Verify your identity.
3. Deposit AUD using PayID.
4. Choose the cryptocurrency you want to buy.
5. Complete your purchase and track your portfolio.

Risks of cryptocurrency

Cryptocurrency is a high‑risk investment. Prices can rise or fall quickly. It is important to understand the risks before investing.

• High price volatility
• Scams and fake projects
• Exchange hacks
• Loss of access if you lose your private keys

Is cryptocurrency legal in Australia

Yes. Cryptocurrency is legal in Australia and regulated by AUSTRAC. Exchanges must follow anti‑money‑laundering and identity‑verification rules.

Tax on cryptocurrency in Australia

The ATO treats cryptocurrency as an asset. Selling, swapping, or spending crypto may trigger capital gains tax. Keeping accurate records is essential.

Frequently asked questions

Is cryptocurrency safe

Cryptocurrency can be safe when you use reputable exchanges and secure your wallet. However, there are risks from scams and user mistakes.

How much do I need to start

You can start with as little as $20. Most exchanges allow small purchases.

Can I buy cryptocurrency with AUD

Yes. You can buy cryptocurrency using AUD through an Australian exchange like Digital Surge.

Continue learning

• What is blockchain
• What is DeFi

Disclaimer: This information is for educational purposes only and is not financial advice. Cryptocurrency is volatile and you should consider speaking with a licensed financial professional.