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Koste Koste
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Koste

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Trusted Tax Depreciation Services Nationwide
Koste is a leader in Tax Depreciation, specializing exclusively in property tax depreciation services since 2012. Founded by Mark Kilroy, a Chartered Quantity Surveyor and Registered Tax Agent, we combine nearly 20 years of industry experience with innovative AI-driven software to deliver ATO-compliant reports that maximize deductions for residential and commercial properties. Our team of AIQS-certified professionals operates nationwide, offering transparent fixed pricing and personalized support.

We pioneered virtual site inspections and fixed-price residential reports, setting new industry standards while completing over 40,000 projects across Australia. Our commitment to excellence is reflected in our Chartered RICS and AIQS accreditations, ensuring clients receive accurate, legally compliant assessments backed by professional indemnity insurance.
Services
Tax Depreciation Asset Registers Life Cycle Reporting Capex Forecasting Insurance Cost Assessments
Details
  • Year established: 2012
Highlights and features
  • Australia's only Chartered Quantity Surveyor firm specializing in tax depreciation
  • ATO-compliant reports with guaranteed maximum deductions
  • Innovative AI-driven software for accuracy and efficiency
  • Transparent fixed pricing from $695+GST for residential reports
  • Nationwide service with 40,000+ completed projects
Associations and certifications
  • AIQS
  • RICS
What people say
Expertise Clear explanations Post-report support Accurate assessments Professional service
Update Listing
Services
Tax Depreciation
Koste specializes in comprehensive tax depreciation assessments for residential and commercial properties. Our ATO-compliant reports identify all eligible deductions for building structures and plant assets. Using advanced AI technology and physical inspections, we ensure maximum allowable claims while maintaining full legislative compliance.
Asset Registers
We create detailed asset registers documenting property components for financial reporting and maintenance planning. Our registers include asset classifications, values, and effective life spans according to ATO guidelines. This service helps businesses maintain accurate records for tax purposes and capital expenditure forecasting.
Life Cycle Reporting
Our life cycle assessments evaluate asset conditions and projected lifespans to optimize maintenance schedules. We provide strategic recommendations for asset replacement and upgrades based on depreciation patterns. This service supports long-term financial planning and operational efficiency for property owners.
Capex Forecasting
Koste delivers precise capital expenditure forecasts incorporating asset life cycles and market trends. Our analysis helps businesses plan future investments while optimizing tax benefits. We consider depreciation impacts and replacement costs to ensure accurate budgeting for property upgrades and expansions.
Insurance Assessments
We provide certified reinstatement cost assessments for insurance purposes, ensuring adequate coverage against underinsurance risks. Our reports include building materials, demolition costs, and professional fees according to AIQS standards. These valuations protect property owners from both underinsurance and overpayment for coverage.
People
Mark Kilroy
Founder & CEO
Chartered Quantity Surveyor with nearly 20 years' experience in property and tax depreciation. Formerly worked with Ernst & Young, BP, and CBRE. Registered Tax Agent and AIQS committee member. Developed Koste's proprietary depreciation software used by industry partners nationwide.
Claire Kilroy
Co-Founder & Director
Property investor with expertise in marketing and business development. Played key role in expanding Koste's service offerings including the eKoste client portal. Background in property management and strategic brand development. Oversees new service integration and client experience initiatives.
Questions
What is tax depreciation?
Tax depreciation allows property investors to claim deductions for the decline in value of buildings and assets. Koste identifies all eligible items to maximize your tax savings.
How much does a depreciation report cost?
Residential reports start from $695+GST. Commercial assessments vary based on property complexity. We provide custom quotes after evaluating your specific requirements.
Are your reports ATO-compliant?
Yes, our reports meet ATO requirements and are prepared by Chartered Quantity Surveyors. We guarantee compliance with current legislation and industry standards.
How long does the assessment process take?
Most residential assessments complete within 7-10 business days. Commercial projects vary depending on complexity and property size. Urgent requests can be accommodated with prior arrangement.
Do you offer nationwide services?
Yes, we operate Australia-wide with surveyors in all major cities. Our technology enables efficient assessments for properties in remote locations as well.
What qualifications do your assessors hold?
Our team includes Chartered Quantity Surveyors (RICS), Australian Institute of Quantity Surveyors members, and Registered Tax Agents with specialist depreciation expertise.
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Reviews (6)
Taryn Linden
Jan 14, 2022 Report
Very knowledgeable in their area of expertise. A detailed report supplied in regard to the purchased property.
Brad Collins
Oct 17, 2021 Report
Thank you to the Koste Team for delivering my Depreciation Schedule in short time. Competitive pricing and a comprehensive and professional report. Appreciated.
Keng Cheok Tan
Oct 08, 2021 Report
Courteous reception with helpful explanation. Comprehensive self-assessed form that is hassle free.
Followed by prompt report within a couple of business days.
Eric Oostendorp
Jul 28, 2021 Report
For purchasing a Mosaic Property I have kindly been offered a free Tax Depreciation schedule for the property. Thank you Koste.
Eric
Sue Graham
May 27, 2021 Report
Koste provided a depreciation report in a very timely & efficient manner. Communication with staff was excellent.
Isaac Paterson
Apr 12, 2021 Report
I enquired with this company before settlement on my property. They were persistent and followed up a little too frequently. Their communication was frequent after settlement so I had them to do a depreciation report which I received about a week later.
Afterwards I was offered a free rent appraisal and property report which I feel was a good incentive, hence the 5* review.