Round Rock combines Austin-area tech income with Central Texas rental-property activity. Dell Technologies is headquartered here, and the metro pulls in overflow from Tesla, Apple, Samsung, and Oracle: earners with heavy equity comp and zero state income tax on the cash it throws off. Cost segregation fits the property they buy: SFR rentals, small multifamily, Hill Country short-term rentals, and local commercial property.
Why cost segregation pays off here
A cost segregation study reclassifies part of a building’s basis out of the 39- or 27.5-year schedule into 5-, 7-, and 15-year property, producing a large deduction in Year 1, the placed-in-service year.
Texas’s 0% state tax caps a Round Rock investor’s combined rate at ~40.8% (federal 37% + NIIT 3.8%). That’s a smaller multiplier than California, New York, or Massachusetts, but 40.8 cents on every reclassified dollar is still the largest discretionary line on most local returns. And for the many earners here whose equity awards vest in lumpy chunks, timing the placed-in-service year to a big-income year lands the deduction where it matters most.
Who’s buying — and the combined rate
The buyer pool is broad: Dell engineers and directors, Austin-area commuters at Tesla, Apple, Samsung, and Oracle, local employers like Emerson and Kalahari Resorts, plus resident landlords holding single-family rentals, small multifamily, and Central Texas commercial property. All face the same simple stack:
Verify with your CPA — combined-rate math depends on filing status and AGI thresholds for NIIT.
What kind of property qualifies
Cost segregation works across the property Round Rock investors actually own:
- SFR rentals: single-family homes held for long-term tenants.
- Small multifamily: duplexes through small apartment buildings.
- Hill Country STRs: Fredericksburg and the Texas wine country, a short drive away, make premium high-occupancy short-term rentals; the STR structure can open up the deduction against W-2 income (more below).
- Local commercial: retail, office, and other Central Texas commercial buildings on the 39-year schedule.
The bigger the building’s basis and the more site work, finishes, and equipment it carries, the more there is to reclassify.
A representative worked example
One illustrative case: an investor buys a 4BR Fredericksburg Hill Country STR for $635K with $24K of immediate FF&E. After ~$160K in land, the $475K adjusted basis breaks down into roughly $85K of 5-year assets (pool equipment, hot tub, appliances, smart-home, theater and audio), $2K of 7-year assets (custom furniture), and $43K of 15-year property (pool decking, hardscaping, outdoor kitchen, landscape lighting).
That’s $130K reclassified into accelerated depreciation in Year 1. At ~40.8%, federal + NIIT savings come to about $53,000. Time the placed-in-service year to a big-income year and that deduction lands where it does the most good.
Where Round Rock investors buy
Central Texas capital tends to stay close to home. Austin, TX and San Antonio, TX are common destinations, but the Hill Country is the real draw: Fredericksburg and the Texas wine country make for premium, high-occupancy STRs a short drive from Round Rock. Others we see include Port Aransas on the Gulf and Broken Bow, OK, a popular cabin market a few hours north.
Who doesn’t qualify
Real Estate Professional Status (REPS) is out of reach for a full-time Dell or Austin-tech employee: 750+ hours and >50% of personal-services time in real estate conflicts with a demanding day job. For an SFR rental or small multifamily held passively, the deduction generally offsets rental income, not W-2 wages. The path to offsetting W-2 income is the STR exception (Reg. §1.469-1T(e)(3)(ii)): a 7-day-or-less average guest stay plus 100 hours of material participation where no one else participates more.
Managing a Fredericksburg property partly through a manager doesn’t automatically disqualify you, but the hours must come substantially from you, not solely a property manager. A short drive to the Hill Country makes regular on-site trips plus active remote management enough to generally clear the bar. Confirm your facts with your CPA.
Learn more
- What is cost segregation?
- How the STR tax loophole works
- Short-term rental cost segregation
- Cost segregation in Austin, TX: nearby metro page
Cost segregation data for Round Rock, TX (Dell HQ) investors
The representative (median) outcome across 50 engine-modeled property scenarios matched to the Round Rock, TX (Dell HQ) investor profile. Year-1 savings computed at the metro combined bracket of 40.80%.
Representative scenarios modeled via Cost Seg Smart's proprietary
engine — IRS ATG-aligned methodology, industry-standard 2026 construction cost data base costs,
calibrated metro multipliers. n=50 fixtures matched to
Round Rock, TX (Dell HQ) investor profile. Not derived from individual
client returns. Methodology v1.0.0, generated
July 2026 (reproducible seed: round-rock-tx_v1_2026-05-17).
Year-1 savings computed at 40.80% combined (federal 37% + NIIT 3.8%; this state has no personal income tax, so there is no state-side adjustment). Confirm specifics with your CPA.
Tax law current as of July 2026. Federal: OBBBA restored 100% bonus depreciation under §168(k), permanent for property both acquired and placed in service after January 19, 2025 (property acquired or placed in service on or before that date remains under the prior 40% phase-down); 2026+ stays 100%. State conformity varies; verify with your CPA.
CPA use note: These figures estimate the size of the depreciation deduction. Whether the loss is usable in the current year depends on passive-activity rules, STR material participation, REPS status, entity structure, depreciable basis, and state conformity. Your CPA decides how and when it is applied. Specialty and site components (equipment, casework, docks, pools, arenas, tenant improvements, and similar) are only classified when you own them and they are included in the depreciable basis being studied.
How should Round Rock, TX (Dell HQ) investors choose a cost segregation provider?
For a Round Rock, TX (Dell HQ) investor buying a property in the $635,000 range, the choice of provider is a major controllable variable in the return. The IRS Audit Techniques Guide sets the quality characteristics an engineering-based study should meet — industry-standard construction cost data, MACRS classification, and component-level documentation — but it does not make every provider's work identical; rigor, cost, and turnaround still vary.
Traditional engineering studies often run several thousand dollars and can take several weeks, because they include on-site inspections, sales discovery calls, and scheduling overhead. The IRS Cost Segregation Audit Techniques Guide does not prescribe an on-site inspection as a standalone requirement; it sets out the quality characteristics of an engineering-based study — component-level classification, a documented and supportable cost derivation, and a clear audit trail — and describes how a physical inspection can contribute to meeting them.
Modern automated providers (such as Cost Seg Smart) deliver an engineering-based, IRS ATG-aligned study using property records, documents, photos, and recognized construction-cost data, typically from $495 and often the same day. For a Round Rock, TX (Dell HQ) investor at a high combined bracket, that cost and speed difference is meaningful. The CPA-Ready Guarantee (full refund if the report can't be used by your CPA) plus the 60-day money-back policy makes the decision essentially risk-free on the report itself.
The automated path is best-fit for owners who can provide closing documents and property photos online (no in-person visit required) and want the report in time to file the current year's return rather than the next one.
All Cost Seg Smart studies include the CPA-Ready Guarantee (full refund if your CPA can't use the report) plus a 60-day money-back policy. Straightforward residential studies are often delivered the same day and completed remotely; larger or more complex commercial studies take longer and may include an on-site observation.