What is cost segregation on a condo (rental)?

Cost segregation on a condo (rental) reclassifies between 10-18% and 2-5% of the depreciable basis out of straight-line 27.5-year recovery into 5-year personal property and 15-year land improvements. With 100% bonus depreciation under OBBBA for property acquired and placed in service after January 19, 2025, the reclassified portion becomes a first-year deduction.

Is a condo (rental) 27.5 or 39-year property?

A condo (rental) is depreciated over 27.5 years under MACRS (residential property). The recovery period applies to the unreclassified real-property portion. The 5-year and 15-year reclassifications follow Section 1245 and 1250 component rules.

Will the IRS audit a condo (rental) cost seg study?

Cost segregation studies do not trigger audits when properly conducted. WeCostSeg studies follow the IRS Cost Segregation Audit Techniques Guide (Publication 5653) and the 13 Principal Elements of a Quality Cost Segregation Study. Five years of audit defense is included with every WeCostSeg engagement at no extra charge.

Can I do cost segregation on an existing condo (rental)?

Yes. A look-back study captures missed depreciation from prior years via Form 3115 (Designated Change Number 7) under Rev. Proc. 2022-14. The Section 481(a) catch-up adjustment posts in the year of change. No amended returns are required.

What is the Section 1245 versus 1250 split on a condo (rental)?

The 5-year personal property and 15-year land improvement components (about 10-18% and 2-5% of basis respectively) are Section 1245 property. The remaining 75-87% on the 27.5-year schedule is Section 1250 real property. The distinction matters at disposition: Section 1245 recapture is taxed at ordinary income rates, while unrecaptured Section 1250 gain is capped at 25% under IRC Section 1(h)(1)(E).

Does Condo (Rental) qualify for 100% bonus depreciation under OBBBA?

Yes, for the reclassified 5-year and 15-year portions, provided the property was acquired with a binding contract on or after January 20, 2025 per Public Law 119-21 (OBBBA). The remaining 27.5-year real property portion does not qualify for bonus depreciation. Acquisitions under binding contracts dated on or before January 19, 2025 stay on the legacy phase-down (40% in 2025, 20% in 2026, 0% thereafter).

What WeCostSeg service tier fits a condo (rental)?

For condo (rental) with depreciable basis under $800K, the $795 Rapid Report tier is appropriate. From $800K to $2M basis, the $2,495 Fully Engineered Residential tier applies (for residential property types) or $2,995+ Fully Engineered Commercial. All tiers include five years of audit defense at no extra charge and the same 13 Principal Elements compliance under IRS Pub 5653.

How long does a condo (rental) cost segregation study take?

Rapid Reports for condo (rental) typically deliver in 5 to 10 business days. Fully Engineered Residential studies take 2 to 3 weeks after documentation receipt and inspection. Fully Engineered Commercial studies take 3 to 4 weeks. The free preliminary analysis is engineer-reviewed and returned within four business hours during US Eastern hours.

Cost Segregation on Condo (Rental): Component Breakdown and First-Year Tax Math

By Zawwad Ul Sami, Founder, WeCostSegPublished: 2026-05-14Last updated: 2026-05-14

Cost segregation on a condo (rental) reclassifies between 10-18% of depreciable basis to 5-year personal property and 2-5% to 15-year land improvements, with the balance staying on a 27.5-year recovery period. At 100% bonus depreciation under Public Law 119-21 (OBBBA), the reclassified portion becomes a first-year tax deduction.

The exact allocation varies by property condition, age, location, and the specific components present at acquisition. The ranges shown below are typical for the property type but a property-specific engineering study can produce higher or lower results depending on the facts. The IRS Cost Segregation Audit Techniques Guide (Publication 5653) Chapter 3 identifies the detailed engineering approach from actual cost records as the most accurate method, and Chapter 4 lists the 13 Principal Elements of a Quality Study that every WeCostSeg report addresses.

Typical component allocation for Condo (Rental)

Category	Recovery period	Typical % of basis
5-year personal property	5 yr MACRS	10-18%
7-year personal property	7 yr MACRS	0-5%
15-year land improvements	15 yr MACRS	2-5%
27.5-year residential	27.5 yr MACRS	75-87%

For a condo (rental), the 5-year personal property bucket typically includes appliances, decorative finishes, furniture (where owned by the landlord), and decorative lighting. The 15-year land improvement bucket includes paved surfaces, landscaping, exterior lighting, signage, and fencing. The remaining 75-87% stays on the 27.5-year schedule as real property under Section 1250.

Property-specific considerations for Condo (Rental)

Condos have lower cost seg potential because owner only owns interior plus a percentage of common areas. Personal property mostly appliances, flooring, cabinetry. Common area allocation handled by HOA.

These notes inform the engineering methodology applied during the study. Components common to most condo (rental) properties are documented per the 13 Principal Elements framework in IRS Publication 5653 Chapter 4 (February 2025 edition). Property-specific deviations (unusual fixtures, recent renovations, tenant-owned improvements) are captured during the site inspection or documented from purchase records dated within the five-year audit-defense window under Section 168.

Worked first-year tax math for a condo (rental)

$400K rental condo, $320K basis: 14% 5-year ($45K) + 3% 15-year ($10K) + 83% 27.5-year. First-year at 100% bonus = roughly $55K. At 32% rate that is about $18K in savings. Lower ROI on small condos.

The savings figure above assumes 100% bonus depreciation under OBBBA, which applies to property acquired with a binding contract signed on or after January 20, 2025. Property under a binding contract entered on or before January 19, 2025 stays on the phase-down: 40% bonus in 2025, 20% in 2026, 0% in 2027 and after. Use the bonus depreciation timeline tool to determine the rate that applies to your specific acquisition.

Section 1245 versus 1250 implications for Condo (Rental)

The reclassified portion (5-year and 15-year property) is Section 1245 property under IRC Section 1245. At disposition, accumulated depreciation on Section 1245 property is recaptured at ordinary income rates. The remaining 75-87% on the 27.5-year schedule is Section 1250 real property, recaptured at the 25% cap on unrecaptured Section 1250 gain under IRC Section 1(h)(1)(E). Cost segregation amplifies the Section 1245 portion, which is the tradeoff for the time value of accelerated deductions during ownership.

For a condo (rental) held to disposition without a 1031 exchange or basis step-up at death, the recapture should be modeled against the time-value benefit of acceleration. For a property held buy-and-hold or 1031-exchanged into a replacement, the recapture defers indefinitely. See the recapture guide for the full math.

How WeCostSeg approaches a condo (rental) study

For a condo (rental), we use the detailed engineering approach from actual cost records described in Chapter 3 of IRS Publication 5653. The engineer reviews purchase documentation, blueprints if available, and the site (virtually for residential, in person for commercial). Component allocations are documented per the 13 Principal Elements of a Quality Cost Segregation Study. The report ships with five years of audit defense at no extra charge.

Pricing for condo (rental) studies follows the standard tiers. Residential properties under $800K basis qualify for the $795 Rapid Report. Residential and small multifamily up to $2M basis use the $2,495 Fully Engineered Residential tier. Commercial properties of any size use the $2,995 and up Fully Engineered Commercial tier. Every tier includes the same 13 Principal Elements compliance and five years of audit defense.

Apply this allocation in the broader strategy:

Compare with other property types

Each property type has its own typical component allocation. Compare Condo (Rental) against other property types to see how the math shifts.

FAQ

What is cost segregation on a condo (rental)?: Cost segregation on a condo (rental) reclassifies between 10-18% and 2-5% of the depreciable basis out of straight-line 27.5-year recovery into 5-year personal property and 15-year land improvements. With 100% bonus depreciation under OBBBA for property acquired and placed in service after January 19, 2025, the reclassified portion becomes a first-year deduction.
Is a condo (rental) 27.5 or 39-year property?: A condo (rental) is depreciated over 27.5 years under MACRS (residential property). The recovery period applies to the unreclassified real-property portion. The 5-year and 15-year reclassifications follow Section 1245 and 1250 component rules.
What components qualify for accelerated depreciation in a condo (rental)?: Condos have lower cost seg potential because owner only owns interior plus a percentage of common areas. Personal property mostly appliances, flooring, cabinetry. Common area allocation handled by HOA.
How much does cost segregation save on a condo (rental)?: $400K rental condo, $320K basis: 14% 5-year ($45K) + 3% 15-year ($10K) + 83% 27.5-year. First-year at 100% bonus = roughly $55K. At 32% rate that is about $18K in savings. Lower ROI on small condos.
Will the IRS audit a condo (rental) cost seg study?: Cost segregation studies do not trigger audits when properly conducted. WeCostSeg studies follow the IRS Cost Segregation Audit Techniques Guide (Publication 5653) and the 13 Principal Elements of a Quality Cost Segregation Study. Five years of audit defense is included with every WeCostSeg engagement at no extra charge.
Can I do cost segregation on an existing condo (rental)?: Yes. A look-back study captures missed depreciation from prior years via Form 3115 (Designated Change Number 7) under Rev. Proc. 2022-14. The Section 481(a) catch-up adjustment posts in the year of change. No amended returns are required.
What is the Section 1245 versus 1250 split on a condo (rental)?: The 5-year personal property and 15-year land improvement components (about 10-18% and 2-5% of basis respectively) are Section 1245 property. The remaining 75-87% on the 27.5-year schedule is Section 1250 real property. The distinction matters at disposition: Section 1245 recapture is taxed at ordinary income rates, while unrecaptured Section 1250 gain is capped at 25% under IRC Section 1(h)(1)(E).
Does Condo (Rental) qualify for 100% bonus depreciation under OBBBA?: Yes, for the reclassified 5-year and 15-year portions, provided the property was acquired with a binding contract on or after January 20, 2025 per Public Law 119-21 (OBBBA). The remaining 27.5-year real property portion does not qualify for bonus depreciation. Acquisitions under binding contracts dated on or before January 19, 2025 stay on the legacy phase-down (40% in 2025, 20% in 2026, 0% thereafter).
What WeCostSeg service tier fits a condo (rental)?: For condo (rental) with depreciable basis under $800K, the $795 Rapid Report tier is appropriate. From $800K to $2M basis, the $2,495 Fully Engineered Residential tier applies (for residential property types) or $2,995+ Fully Engineered Commercial. All tiers include five years of audit defense at no extra charge and the same 13 Principal Elements compliance under IRS Pub 5653.
How long does a condo (rental) cost segregation study take?: Rapid Reports for condo (rental) typically deliver in 5 to 10 business days. Fully Engineered Residential studies take 2 to 3 weeks after documentation receipt and inspection. Fully Engineered Commercial studies take 3 to 4 weeks. The free preliminary analysis is engineer-reviewed and returned within four business hours during US Eastern hours.

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About the author

Zawwad Ul Sami, Founder

Zawwad Ul Sami is the founder of WeCostSeg, a founder-led cost segregation firm serving real estate investors across the US. He focuses on strategy, pricing, and the firm's overall direction.