Australia's National Cost Database
Koste Chartered Quantity Surveyors
Australia's leading Chartered Quantity Surveyors specialising in tax depreciation schedules, insurance replacement cost reports, and construction cost analysis. ATO-compliant. AIQS & RICS certified.
Our Services
Tax Depreciation Schedules
ATO-compliant depreciation reports for residential and commercial investment properties. Average $9,000+ first-year deduction. From $695+GST.
CGT Cost Base Reports
Reconstruct renovation costs for Capital Gains Tax purposes. ATO-accepted methodology prepared by Chartered Quantity Surveyors.
Insurance Replacement Cost
Accurate rebuild cost valuations to ensure you are fully covered. 80% of Australian property owners are underinsured.
Asset Registers
AASB and IFRS-compliant asset registers for commercial, strata, and government properties.
Lifecycle & Capital Planning
30-year capital expenditure forecasts for strata, commercial, and government property portfolios.
Construction Cost Reports
Independent construction cost estimates and quantity surveying reports for development projects across Australia.
Why Choose Koste?
- Led by Mark Kilroy BSc (Hons), MAIQS, CQS, MRICS — Founder and Chartered Quantity Surveyor
- Members of the Australian Institute of Quantity Surveyors (AIQS) and Royal Institution of Chartered Surveyors (RICS)
- ATO-compliant reports accepted by all major accounting firms and the Australian Taxation Office
- Every report includes a full Audit Support Pack — methodology notes, inspection evidence, and ATO legislative references
- Serving all Australian states and territories: QLD, NSW, VIC, WA, SA, TAS, NT, ACT
- Average $9,000+ first-year tax deduction for residential properties
Free Property Investment Tools
Knowledge Hub
Hundreds of expert answers on tax depreciation, capital gains tax, negative gearing and construction costs — written by our Chartered Quantity Surveyors. Browse all articles →
Latest Expert Articles
How do I calculate my property cost base?
Your property cost base is the total of your purchase price plus all eligible costs of acquisition and ownersh…
Can depreciation increase my capital gain when I sell?
Division 43 capital works deductions claimed over the years reduce your cost base, which means a higher capita…
Do I need a depreciation schedule?
You may need a depreciation schedule if you own an income-producing property and want to claim eligible deprec…
When should I update my depreciation schedule?
You should update your depreciation schedule when you renovate, add new assets, remove old assets, change the …
What is scrapping and how does it save me tax?
Scrapping may allow you to claim the remaining value of eligible assets or capital works that are removed, dem…
I just bought an investment property. What should I do next?
After buying an investment property, organise your records, speak with your accountant, confirm insurance, and…
What records do I need when selling an investment property?
When selling an investment property, you should keep purchase records, sale records, renovation costs, depreci…
How does depreciation affect Capital Gains Tax when I sell?
Depreciation can affect Capital Gains Tax because some capital works deductions may reduce the property's cost…
Do I need an insurance replacement cost valuation?
Yes, if you own a commercial property, strata building, development asset, or specialised property, an insuran…
Contact Us
Phone: 1300 669 400
Email: info@koste.ai
Address: Riva Offices, 2/14 Edgewater Court, Robina QLD 4226