Stablecoins and the Australian dollar
Stablecoins are crypto's quiet workhorse — tokens engineered to hold a fixed price that settle more value than most people realise. Here's how they work, why the market runs on US dollar coins, and where the Australian dollar actually fits, from ASX experiments to the RBA's Project Acacia.
How a stablecoin holds its peg
The credible design is full reserve backing: for every token issued, the issuer holds a matching dollar in cash or short-term government securities, and stands ready to redeem at face value. Arbitrage does the day-to-day work — if the token trades below $1, traders buy it and redeem for $1, pushing the price back. Designs that replaced reserves with algorithms have a graveyard of their own, TerraUSD most famously.
What they're actually for
Inside crypto, stablecoins are the cash leg of nearly everything: the parking spot between trades, the quote currency of most markets, and the rails for moving value between platforms in minutes. Beyond trading, they're increasingly used for fast cross-border transfers — and that's precisely where regulators focus, since the same speed serves scammers; stablecoins carry the large majority of illicit crypto flows by volume.
The AUD contenders
Australian-dollar stablecoins exist — banks and fintechs have issued or piloted AUD tokens for settlement experiments and on-chain payments, and new entrants keep arriving. What none has yet achieved is liquidity: global markets quote in USD coins, so AUD tokens remain specialised tools rather than everyday instruments. For now, an Australian buying "a stablecoin" is almost certainly buying USD exposure — with the AUD/USD move that implies.
Where the RBA stands
Project Acacia — the RBA and Digital Finance CRC's real-money trial of tokenised settlement, with findings published in 2026 — tested how wholesale markets could settle using central bank digital money and regulated stablecoins. The signal for consumers: Australia is building the institutional plumbing first, while stablecoin issuers are being folded into the new licensing framework rather than left in a gap.
The practical takeaway: stablecoins are a tool, not a savings product. They pay no interest by themselves, they're taxed as CGT assets on every swap, platform "earn" yields on them carry real platform risk — and a "stable" token is exactly as trustworthy as its reserves and its issuer.
FAQ
Are stablecoins safe to hold?
A stablecoin is only as good as what backs it and who'll redeem it. The large USD coins publish reserve attestations and have held their pegs through recent stress, but stablecoins have broken before — TerraUSD's 2022 collapse erased tens of billions. Held on an exchange, you also carry the platform's risk on top of the issuer's. "Stable" describes the target price, not the risk.
Why do Australians mostly end up using USD stablecoins?
Liquidity. USDT and USDC dominate global trading pairs, so they're the working currency of crypto markets — moving between coins, parking during volatility, or transferring value across platforms usually means touching one. The AUD alternatives exist but their on-chain liquidity remains a fraction of the USD giants', which limits them to niche uses so far.
Is holding a stablecoin taxed like a bank account?
No — the ATO treats stablecoins as CGT assets like any other crypto. Swapping BTC into USDT is a disposal of the BTC (a taxable event), and because USD stablecoins move against the Australian dollar, even they generate small gains and losses in AUD terms on every use. Tax software handles the churn automatically.
What did Project Acacia actually find?
The RBA and the Digital Finance CRC ran real-money trials of tokenised asset settlement using different forms of digital money — including a wholesale central bank digital currency and stablecoins — with findings published in 2026. The focus was institutional plumbing (settling tokenised markets), not a consumer "digital Aussie dollar": the RBA has been clear that any retail CBDC remains a separate, longer-term question.
Related: the AUD converter for live rates, what a swap costs after tax, and the scams hub — because "guaranteed stable yield" is a phrase that should ring alarms.
General information only, not financial advice. Reserve quality, redemption rights and regulation vary by issuer and change over time.