Buy Maker Dai

DAI is a cryptocurrency built to hold a value close to one US dollar. It is issued by the Maker Protocol, a set of smart contracts on Ethereum now governed by the Sky ecosystem, and it is backed by other digital assets locked in public on-chain vaults rather than by cash sitting in a bank account. That makes DAI a crypto-collateralised stablecoin, and it is the reason DAI behaves differently to USDC or Tether. If stablecoins are new to you, start with our guide to what a stablecoin is.

One point worth understanding before you buy: DAI targets the US dollar, not the Australian dollar. Even when the peg holds perfectly, the Australian dollar value of your DAI still moves with the AUD/USD exchange rate.

How is DAI created and what backs it?

DAI is not issued by a company. It is created when someone deposits approved collateral into a Maker vault, originally called a Collateralised Debt Position, and generates DAI as debt against that collateral. To get the collateral back, the borrower repays the DAI plus a stability fee set by governance.

Every vault must be overcollateralised, which means the collateral is worth more than the DAI drawn against it. If the collateral value falls through the liquidation ratio for that asset, the vault is liquidated automatically and the collateral is auctioned to cover the debt. Because all of this sits in public smart contracts, anyone can inspect what is backing DAI at any time. That is not possible with stablecoins backed by off-chain bank reserves.

Approved collateral has broadened well past Ether. It now includes wrapped Bitcoin, other stablecoins held in a dedicated module, and tokenised real-world assets. The exact mix changes as governance votes change it, and the Sky protocol documentation is the primary source for current parameters.

What keeps DAI close to one US dollar?

Four mechanisms work together, and governance can adjust all of them.

• The Peg Stability Module. Anyone can swap DAI for another approved stablecoin at a fixed one-to-one rate. When DAI drifts above or below the dollar, that swap creates an immediate arbitrage loop that pulls it back.
• The stability fee. Raising the cost of borrowing DAI discourages new supply and supports the price. Lowering it encourages more DAI to be created.
• A savings rate contract. Governance can make holding DAI in a dedicated contract more or less attractive, which shifts demand.
• Liquidations. Vaults that fall below their required collateral level are auctioned off, so the outstanding DAI stays backed.

The peg is a target, not a promise. DAI is a soft peg maintained by incentives, and it can and does trade slightly above or below a dollar.

Is DAI an algorithmic stablecoin?

No. DAI is crypto-collateralised and overcollateralised. Every DAI has collateral behind it that is worth more than the DAI itself.

Algorithmic stablecoins such as the failed Terra USD tried to hold a peg by expanding and contracting token supply without dedicated collateral reserves. That design has repeatedly broken. The distinction is not marketing language, it is how regulators categorise the risk: the Reserve Bank of Australia treats asset-backed and algorithmic stablecoins as separate risk categories, noting that algorithmic designs are inherently fragile.

DAI carries real risks, covered below, but they are collateral, governance and smart contract risks, not the reflexive supply spiral that destroyed Terra USD.

How does DAI differ from USDC and Tether?

	DAI	USDC and Tether
Issuer	A decentralised protocol governed by token holders	A single private company
Backing	Digital assets and tokenised real-world assets in on-chain vaults	Cash and short-term instruments held off-chain
Redemption	Redeemed for collateral through the protocol	Redeemed for fiat currency through the issuer
Verification	Collateral is visible on-chain in real time	Verified through issuer attestations and reports

Neither model is automatically safer. Fiat-reserve stablecoins concentrate risk in one issuer and its banking partners. DAI spreads that risk across collateral markets, oracles, smart contracts and a governance process.

Is DAI being discontinued or replaced by USDS?

No. DAI has not been retired, and Sky has not announced a sunset date, a minting halt or any change to redemption.

In 2024 MakerDAO rebranded to Sky and launched USDS, a newer stablecoin, alongside the SKY governance token. Sky has since directed most new activity to USDS, and during 2026 a number of large global exchanges delisted DAI and converted their customers' DAI balances to USDS at one for one. DAI is therefore best understood as the legacy token of the two: still live, still minted and redeemed through Maker vaults, but no longer the token the protocol is being built around.

Two things have not changed. The DAI token contract was deliberately built so it cannot be altered, upgraded or deprecated by a governance vote, which means DAI held in self-custody cannot be converted without the holder acting. And the converter between the two tokens runs in both directions, so USDS can be swapped back to DAI at one for one just as easily as the reverse.

CoinJar lists DAI in its existing legacy form and is not converting customer DAI balances to USDS. We do not list USDS, so moving between the two is something you would do yourself, off platform. Our explainer on MKR to SKY and DAI to USDS sets out how the two sets of tokens relate.

What is DAI used for?

• Collateral and lending in decentralised finance. DAI is one of the most widely accepted assets across lending markets and derivatives platforms. Our guide to decentralised finance explains the wider ecosystem.
• A trading and settlement unit. Stablecoins act as the cash leg of on-chain markets, so positions can be quoted and settled without touching the banking system.
• Moving value across borders. DAI settles on a public network at any hour, without correspondent banks in the middle.
• Stepping out of volatility. Traders rotate into DAI to hold a dollar-denominated position without cashing out to a bank account.

Which network does DAI run on?

The canonical DAI token is an ERC-20 contract on Ethereum. If Ethereum itself is unfamiliar, our Ethereum explainer is a good starting point.

DAI also exists on several other networks, including Ethereum layer twos and sidechains. Those versions are separate bridged contracts, not the Ethereum mainnet token, and they carry the additional risk of the bridge that issued them. When you withdraw DAI, always confirm the receiving wallet supports the exact network you are sending on. Our guide to crypto bridges explains why the distinction matters.

What are the risks of holding DAI?

• Peg risk. The dollar target is maintained by incentives, not guaranteed. DAI has traded away from a dollar before and can again.
• Collateral concentration. A meaningful share of DAI's backing has shifted toward centralised stablecoins and tokenised real-world assets. That imports the counterparty risk of those issuers into DAI, and it means DAI is less independent of the traditional financial system than its design suggests.
• Smart contract and oracle risk. The protocol depends on code and on price feeds. Failures in either can cause incorrect liquidations or losses.
• Governance risk. Collateral types, fees and risk parameters are set by token holder votes. Those votes can change the risk profile of DAI without your involvement.
• Currency risk. For an Australian holder, a US dollar peg is not stability. It is US dollar exposure.
• Availability and liquidity risk. Several large exchanges stopped supporting DAI during 2026 and converted customer balances to USDS. Fewer venues quoting DAI can mean thinner liquidity and wider spreads than for the newer stablecoins, and it means where you hold DAI matters.
• No government compensation. Digital assets are not covered by the Australian Government's Financial Claims Scheme. If you lose value, there is no compensation scheme to fall back on.

Buying DAI with Australian dollars on CoinJar

CoinJar has operated since 2013 and lists DAI against Australian dollars, so you can buy, sell and hold it without converting through another cryptocurrency first. Current charges are on our fees page, and live Australian dollar rates are on our cryptocurrency prices page.

CoinJar Australia Pty Ltd is registered with AUSTRAC as a digital currency exchange provider, Registration No. DCE100749118-001.

How is DAI taxed in Australia?

The ATO generally treats DAI as a capital gains tax asset. A CGT event can occur when you sell it for Australian dollars, exchange it for another cryptoasset, spend it or give it away.

The ATO explains these rules on its official guidance page. Our guide to crypto tax in Australia provides a practical overview. This is general information, not tax advice. Consider speaking to a registered tax agent about your circumstances.