Who we are

TDA Cost Segregation was founded by the team behind TDA Tax Depreciation, Australia's first tax depreciation franchise. We bring the same business acumen refined across thousands of completed studies across the TDA Group to US property investors.

TDA Cost Segregation is a quantity-surveying and depreciation specialist firm serving US property investors, CPAs, and syndicators. We apply engineering-grade methodology to the IRS MACRS system, OBBBA bonus depreciation, and the full set of depreciation-related elections that property owners can use to accelerate their tax deductions.

Our team is staffed with cost estimators and tax-trained professionals familiar with the IRS Cost Segregation Audit Techniques Guide and recent Tax Court guidance.

What we do — and what we don't

We are a depreciation-only firm. We don't sell software, prepare tax returns, or audit financial statements. Our entire focus is engineering-based cost segregation studies that hold up to IRS scrutiny and CPA review. That focus is why we can move faster, charge less, and produce more defensible studies than full-service tax shops.

Why investors and CPAs choose TDA

  • Engineering-based methodology. Component-by-component itemization, construction document review, accepted construction-estimating standards. The IRS-preferred approach.
  • Current with OBBBA. Studies model 100% bonus depreciation under the One Big Beautiful Bill Act, and account for interaction with §179, QIP, the real-estate-professional rules, and the short-term rental exception.
  • CPA-ready deliverables. Asset detail by MACRS class, depreciation schedule by year — everything your tax preparer needs.
  • Free, no-obligation feasibility. If a study doesn't make economic sense for your property, we tell you so. No high-pressure sales process.

For CPA partners and referrers

We work directly with CPA firms, wealth managers, and real-estate syndicators. White-labeled deliverables and a priority-service partner program available — see become a partner.