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
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…
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…
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