Duo Tax Quantity Surveyors is an Australian owned company who assists investors with their tax depreciation needs for their residential or commercial investment properties. Our reports provide up to 40 years of depreciation where applicable and we’ll even retrospectively help you claim on previous years you missed out on. We’re Australia’s highest-rated Quantity Surveyors. Our Quantity Surveyors have served over 50,000 happy property investors. With over 50 combined years of experience and a nationwide presence, our Duo Tax process focuses on the most aggressive form of tax depreciation. We offer immediate and accurate over the phone estimates and have an average turnaround time of 5 business days. The team strive to ensure the education of the tax rulings to better educate clients in regards to their investment properties.