If you’re ending a tenancy, check whether your agreement is fixed-term or periodic, as notice periods differ between Australian states and territories. Give your notice in writing and include the property address, intended move-out date and any other details required by your agreement or local rules. Keep a copy and proof of delivery, and continue paying rent and meeting your lease obligations until the tenancy legally ends and the keys are returned. For exact timing and forms, check your state or territory tenancy authority’s official website.