The plain-English answer
A crypto-to-crypto swap is treated here as a disposal of the asset you gave up at the AUD market value entered, followed by a new acquisition of the asset you received.
Swap guide
Crypto swap tax in Australia: why no AUD proceeds can still mean a taxable disposal
This is the mistake-first page for people who think “I only swapped coins, so I did not really sell anything.” In the estimator, swapping one crypto asset for another is still treated as a disposal of the outgoing asset.
Why this catches people off guard
Because no AUD may have hit your bank account, the event can feel like a portfolio shuffle instead of a taxable event. The tax issue is not whether you saw cash. It is whether you disposed of one asset to get another.
Worked example
If you swap BTC into ETH, the outgoing BTC is treated as disposed of at the AUD value you enter. The new ETH becomes its own parcel with a fresh acquisition date and cost base from that same swap.
Where this estimate breaks down
The output weakens when the AUD value at the swap time is missing or when the activity was part of a more complex bridge or DeFi flow. That is outside the current estimator scope.
Default route after this page
If the swap event now makes sense, the next step is usually the calculator. If the swap still feels unclear because records are incomplete, go to the records guide before estimating.