Separate display from settlement
An interface may show an estimated AUD value while the account or network settles in something else. Verify the unit used for bets, balances, fees and withdrawals.
Spreads are part of the cost
Compare the quoted rate with an independent market reference and include buy, sell and withdrawal charges. Multiple conversions can create cost in both directions.
Keep timestamped records
Store the amount, asset, AUD equivalent, rate source, fees and time for each transfer. Clear records support budgeting and may be relevant when seeking professional tax guidance.