Real Estate Tax Calc
Why land itself is not depreciable—but improvements to it are
The IRS principle underlying depreciation is that a taxpayer can recover the cost of an asset over its useful life—but only if the asset actually wears out, decays, or becomes obsolete. Land itself does not wear out. A plot of dirt in 1950 is still a plot of dirt in 2026, and the IRS therefore does not allow any depreciation deduction for raw land. This is why buyers of real property must allocate the purchase price between land (non-depreciable) and building or improvements (depreciable) at acquisition.
Land improvements, however, are physically distinct from the land itself. A paved parking lot develops potholes and cracks. A wooden fence weathers and eventually needs replacement. Irrigation systems corrode. Outdoor lighting fixtures burn out. Because these improvements have a finite, determinable useful life, the IRS permits depreciation deductions for their capitalized cost. The result is a meaningful tax planning opportunity: identifying and segregating land improvements from the broader property allows investors to recover those costs much faster (15 years) than the building (27.5 or 39 years).
The distinction between "the land" and "improvements to the land" is not always intuitive, which is why cost segregation engineers and tax professionals are often needed to classify components correctly. The IRS provides guidance in Asset Class tables in Rev. Proc. 87-56 and IRS Publication 946, and the courts have decided numerous disputes over borderline items.
What qualifies as a land improvement for tax purposes
A qualifying land improvement is a capital expenditure that: (1) is physically separate from the building structure, (2) is affixed to or located on the land, (3) has a determinable useful life, and (4) is not part of the structural components of the building (walls, roof, foundation, HVAC, plumbing, electrical systems serving the building). The key distinction is separability—the improvement can be removed or replaced without affecting the integrity of the building itself.
IRS Asset Class 00.3 (Land Improvements) in Rev. Proc. 87-56 covers improvements that are not otherwise classified. The 15-year GDS recovery period applies under MACRS. Common items that qualify include: paved parking lots and parking structures that are not integral to the building, fences and gates, sidewalks and walkways serving outdoor areas, landscaping (trees, shrubs, berms, sod), irrigation and sprinkler systems, outdoor athletic courts, swimming pools on commercial or rental properties, retaining walls, outdoor lighting separate from the building, and signage mounted on the ground rather than the building.
Examples of 15-year land improvements
Parking lots: An asphalt or concrete parking area is the most commonly identified 15-year land improvement in cost segregation studies. Whether the lot is striped, drained, or lit with pole-mounted lights, it qualifies as a land improvement separate from the building. The parking lot base, asphalt, curbing, and drainage system are all part of the 15-year classification.
Fencing and gates: Chain-link, wood, ornamental iron, or vinyl fencing installed around the perimeter of a property is generally a 15-year land improvement. Motorized entry gates and associated control mechanisms are often included in this classification.
Sidewalks and pathways: Concrete or paver sidewalks and walkways running between parking areas and building entrances, or between buildings on the same property, are 15-year land improvements. Sidewalks that are part of the public right-of-way are typically treated differently.
Landscaping: The initial installation of trees, shrubs, grass, berms, and decorative plantings is capitalized and classified as a 15-year land improvement. The cost includes soil preparation, irrigation installation, and the plant material itself. Ongoing maintenance (mowing, fertilizing, pruning) is a currently deductible operating expense.
Outdoor lighting: Pole-mounted lights in parking lots and along walkways are generally 15-year land improvements. Lighting that is affixed to the building itself (wall packs, canopy fixtures) is typically a structural component of the building and uses the building's recovery period.
Retaining walls and grading: Earthwork—cut and fill grading, retaining walls, and erosion control structures—that shapes the property site (but is not the building's foundation) is typically a 15-year land improvement.
What is NOT a land improvement
Several categories of real estate components are frequently confused with land improvements but do not qualify for the 15-year classification.
The building itself and its structural components are §1250 real property that uses 27.5-year (residential rental) or 39-year (commercial) MACRS depreciation. Structural components include walls, the roof, windows, doors, central HVAC systems, plumbing, electrical distribution systems within the building, and elevators. None of these are land improvements—they are components of the building.
The raw land is never depreciable, regardless of what is built on it. The allocation between land and building at acquisition remains important because only the building (and improvements) basis enters the depreciation schedule.
Underground utilities connecting to the building—water lines, sewer lines, electrical conduit running from the street to the building—are sometimes treated as land improvements and sometimes as building components or §1245 property, depending on their function and connection to the building's systems. A cost segregation engineer's analysis is typically required for these items.
Intangible property such as easements, mineral rights, and air rights have no physical deterioration and are not land improvements.
MACRS classification and the 15-year recovery period
Under the Modified Accelerated Cost Recovery System (MACRS), land improvements assigned to Asset Class 00.3 use a 15-year General Depreciation System (GDS) recovery period with the 150% declining balance method switching to straight-line. The half-year convention applies for most properties (unless the mid-quarter convention is triggered). Alternative Depreciation System (ADS) uses a 20-year straight-line life for land improvements, which applies in certain tax planning contexts (such as electing out of the interest expense limitation under IRC §163(j)).
The 150% declining balance method for 15-year assets is more accelerated than the straight-line method used for the building itself but less aggressive than the 200% declining balance used for 5-year and 7-year personal property. In practice, the combination of the short 15-year life and bonus depreciation (discussed below) makes land improvements highly attractive for first-year deductions.
Bonus depreciation on land improvements: the TCJA phase-out schedule
The Tax Cuts and Jobs Act of 2017 (TCJA) expanded bonus depreciation under IRC §168(k) to 100% for qualifying property placed in service after September 27, 2017, and before January 1, 2023. Because land improvements (15-year MACRS property) have a recovery period of 20 years or less, they qualify for bonus depreciation—unlike the building itself (27.5 or 39 years), which is explicitly excluded.
The 100% bonus rate began phasing out after December 31, 2022, under the following schedule for property placed in service in calendar years:
2022: 100% bonus depreciation. Full first-year deduction for all qualifying land improvements placed in service.
2023: 80% bonus depreciation. The first-year deduction dropped to 80% of the qualifying basis; the remaining 20% depreciates over 15 years under MACRS.
2024: 60% bonus depreciation. First-year deduction: 60% of cost; remaining 40% over 15 years.
2025: 40% bonus depreciation. First-year deduction: 40% of cost; remaining 60% over 15 years.
2026: 20% bonus depreciation. First-year deduction: 20% of cost; remaining 80% over 15 years under 150% declining balance.
Unless Congress acts to restore the higher bonus depreciation rates, the rate drops to 0% for property placed in service after December 31, 2026 (for non-longer-production-period property). Investors placing land improvements in service before year-end 2026 can still capture the 20% first-year bonus, so timing capital projects before year-end matters.
Worked example: land improvements with and without cost segregation
An investor purchases a commercial strip center for $1,000,000. Without a cost segregation study, the entire depreciable basis (after allocating, say, $150,000 to land) = $850,000 is placed on a 39-year depreciation schedule. Annual depreciation: $850,000 ÷ 39 = $21,795 per year.
The investor hires a cost segregation firm. The study identifies $80,000 in 15-year land improvements: $45,000 for the parking lot, $20,000 for perimeter fencing, and $15,000 for landscaping and irrigation. The remaining $770,000 stays as 39-year building basis ($850,000 minus $80,000).
Without cost segregation (39-year recovery, year 1): $850,000 ÷ 39 = $21,795 deduction in year one.
With cost segregation (year 1 in 2026, 20% bonus depreciation applies to land improvements):
Land improvements bonus: $80,000 × 20% = $16,000 first-year bonus deduction.
Land improvements regular MACRS (remaining $64,000 over 15 years, half-year convention, year 1 at 150% declining balance ÷ 15 × 50% for half-year ≈ $64,000 × 5% = $3,200): approximately $3,200.
Building MACRS (39-year, $770,000 ÷ 39 = $19,744): approximately $19,744.
Total year-1 deduction with cost segregation: $16,000 + $3,200 + $19,744 = $38,944.
Incremental year-1 benefit from cost segregation: $38,944 versus $21,795 = approximately $17,149 in additional first-year deductions. For an investor in the 37% marginal federal bracket, this represents roughly $6,345 in additional tax savings in year one alone—simply by reclassifying existing components through a cost segregation study.
Form 4562 and MACRS elections for land improvements
Land improvements subject to MACRS depreciation are reported on Form 4562 (Depreciation and Amortization), Part II (MACRS Depreciation). New land improvements placed in service during the year are listed in Section B (Special Depreciation Allowance) if bonus depreciation applies, and in Section C (Other Depreciation) for the regular MACRS portion.
Taxpayers who wish to elect out of bonus depreciation for a class of property—for example, to avoid creating a net operating loss in a year when depreciation is not needed—can make an election under IRC §168(k)(7) to not apply the special depreciation allowance for all property in a specified class placed in service during the year. This is a class-by-class election and must be made on a timely filed return. A separate election under Reg. §1.168(b)-1 can be made to use the straight-line method rather than the 150% declining balance method for the regular MACRS deductions on 15-year land improvements.
Tracking land improvements separately from the building on the depreciation schedule is important not only for accurate annual deductions but also for the sale. When the property is sold, land improvements (classified as §1245 property) will generate §1245 recapture—taxed as ordinary income up to accumulated depreciation—which is computed separately from the §1250 unrecaptured gain on the building. This distinction affects how Form 4797 is completed at sale.
Frequently asked questions
Are landscaping costs a land improvement for depreciation?
Yes, qualifying landscaping installed around a commercial or rental property is generally a 15-year MACRS land improvement. Basic lawn maintenance is a currently deductible operating expense, but the initial installation of landscaping (planting trees, building hardscaping) is a capital improvement that is depreciated over 15 years. Installation costs, soil preparation, and irrigation are included.
Is a driveway a land improvement or building component?
A driveway serving a rental property is generally classified as a 15-year land improvement rather than a structural component of the building. A garage floor that is integral to the building may be classified differently—consult a cost segregation engineer if the classification is unclear, as the answer depends on whether the surface is a structural component of the building or a separate site improvement.
What is the difference between a land improvement and a building improvement?
A building improvement (structural component) uses the same depreciation life as the building—27.5 or 39 years. A land improvement (asset class 00.3) uses 15-year MACRS and qualifies for bonus depreciation. The distinction is whether the improvement is an integral part of the building structure or a separate enhancement to the surrounding land.
Can I deduct 100% of land improvements under bonus depreciation in 2026?
No. The bonus depreciation percentage for property placed in service in 2026 is 20% under the TCJA phase-out schedule (100% in 2022, 80% in 2023, 60% in 2024, 40% in 2025, 20% in 2026). The remaining 80% is depreciated over the 15-year MACRS period using the 150% declining balance method.
Do land improvements affect my property basis?
Yes. Land improvements are capitalized and added to your property's depreciable basis. When you sell the property, the original cost of land improvements less accumulated depreciation is part of your adjusted basis calculation, and any gain attributable to depreciated land improvements may be subject to §1245 recapture as ordinary income (unlike building depreciation, which is §1250 unrecaptured gain at 25%).
Educational information and estimates only. Not tax advice. Tax rules change and vary by situation; consult a qualified tax professional before acting.