Deposit: pay in the amounts/times set out in the contract, with written evidence for electronic payments; failure to pay or otherwise breach lets the seller terminate, keep the deposit, and claim further compensation (may include agent commission). GST Withholding: if the seller gives notice, pay the withheld portion to the ATO under s.14-250 Sch 1 of the Taxation Administration Act 1953 (Cth). CGT Withholding: for contracts signed from 1 January 2025, withhold 15% of the purchase price — no minimum price threshold — and pay it to the ATO at settlement, unless the seller produces a valid ATO clearance certificate or variation notice. Key dates: Contract Date, Deposit Due, Balance Deposit Due, Finance Date (notify the seller to extend or terminate if finance isn't secured), Building and Pest Inspection Date, Settlement Date. Separately: get the contract reviewed by a legal expert before signing — common issues include the wrong buyer entity, unclear deposit terms, and missing conditions for foreign ownership, finance, or a related settlement.