Do I need both comprehensive and third party insurance?

Do you need both comprehensive and third party insurance for car in Australia, no you need only one, as comprehensive includes third party property and more, costing $800 to $1,500 per year versus third party property $300 to $500, with CTP green slip mandatory $400 to $800 separate for injury to others. In Australia, car insurance types are CTP compulsory third party $400 to $800 per year mandatory for registration covering injury to others $500K to $1M, third party property $300 to $500 per year covering damage to others property $20M but not your car, and comprehensive $800 to $1,500 per year covering damage to others property $20M plus damage to your car $10K to $50K, theft, fire and accidental damage. Comprehensive already includes third party property, so you do not need both comprehensive and third party property, you need CTP mandatory plus either comprehensive or third party property. For example, $20K car comprehensive $900 per year includes third party property $20M and your car $20K, while third party property $400 per year covers only others property $20M not your car $20K. So you need CTP $400 to $800 mandatory plus either comprehensive $800 to $1,500 for full cover or third party property $300 to $500 for budget if car low value $10K, but not both comprehensive and third party property as comprehensive includes third party property, so choose comprehensive for newer cars under 10 years and third party property for older $10K cars.