PayID is a secure payment system that links your bank account to an email or phone number. It allows instant transfers between Australian banks and is widely supported by crypto exchanges.

How do I buy Bitcoin with PayID?

Sign up with a registered exchange, verify your identity, select PayID as your deposit method, transfer AUD, and buy Bitcoin instantly.

Is PayID safe for buying Bitcoin?

Yes — PayID is backed by Australian banks and complies with AUSTRAC regulations. It offers fast, secure transfers and is ideal for crypto purchases.

What Is DeFi? (2026 Beginner Guide)

Updated: May 2026 • CoinTrack Australia

DeFi, short for decentralised finance, is a new financial system built on blockchain technology. It allows anyone to borrow, lend, trade, and earn rewards without banks or intermediaries. This guide explains what DeFi is, how it works, and how Australians can use it safely in 2026.

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What is DeFi

DeFi is a collection of financial applications built on blockchain networks like Ethereum and Solana. These applications operate without banks, using smart contracts to automate transactions and remove the need for intermediaries.

How DeFi works

DeFi platforms use smart contracts — self‑executing programs stored on the blockchain — to manage lending, borrowing, trading, and earning rewards. Because everything is automated, DeFi can offer lower fees and faster transactions.

Smart contracts: Code that executes financial actions automatically.
Liquidity pools: User‑supplied funds used for trading and lending.
Decentralised exchanges (DEXs): Platforms for trading crypto without a middleman.
Yield farming: Earning rewards by providing liquidity.
Staking: Locking crypto to support a network and earn rewards.

Popular DeFi platforms

These are some of the most widely used DeFi protocols and networks:

Ethereum

The largest DeFi ecosystem with thousands of decentralised apps.

View Ethereum price

Solana

High‑speed blockchain used for fast, low‑cost DeFi transactions.

View Solana price

Avalanche

Low‑cost DeFi network with fast confirmation times.

View Avalanche price

Why people use DeFi

DeFi gives users more control over their money. Instead of relying on banks, users interact directly with smart contracts and decentralised applications.

Benefits of DeFi

Open to anyone with a crypto wallet
No banks or intermediaries
Lower fees and faster transactions
Earn rewards through staking and liquidity
Transparent and decentralised

Live DeFi market chart

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How to start using DeFi

The easiest way to begin is by buying a cryptocurrency like Ethereum or Solana, then connecting your wallet to a DeFi platform.

Create a Digital Surge account.
Verify your identity.
Deposit AUD using PayID.
Buy ETH or SOL.
Connect your wallet to a DeFi app.

Start with Digital Surge

Frequently asked questions

Is DeFi safe

DeFi can be safe, but smart contract bugs and scams are risks. Always research platforms first.

Do I need a bank account

No. DeFi works with crypto wallets, not banks.

Can I lose money

Yes. Prices can drop, and smart contracts can fail. Only invest what you can afford to lose.

Continue learning

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.