15 Year Land Improvements Depreciation Guide

Land improvements are depreciable site work with a 15 year MACRS recovery period, depreciated using the 150 percent declining balance method. Paving, sidewalks, fencing, site lighting, landscaping, retaining walls, and underground utilities all qualify. Because 15 years is under the 20 year bonus depreciation threshold, these components can be written off entirely in year one, and they are routinely buried in the nondepreciable land allocation instead.

Why This Category Gets Missed

When a property closes, the settlement statement shows one number for the real estate. Someone then splits it between land and building, usually using the county assessor's ratio. That split has no line for site improvements, so every dollar of paving, curbing, and landscaping falls into one of two buckets: the 39 year building, or worse, nondepreciable land.

Land itself is never depreciable. But the improvements sitting on it are, and they are frequently substantial. On a commercial property with a large parking lot, land improvements can be 10 to 20 percent of total basis. Every dollar misallocated to raw land is a dollar that is never deducted at all.

What Qualifies as a 15 Year Land Improvement

Category	Examples
Paving and hardscape	Parking lots, driveways, sidewalks, curbing, patios, loading docks
Site utilities	Underground water, sewer, gas, and electrical lines outside the building footprint
Drainage	Storm sewers, catch basins, retention ponds, culverts, French drains
Landscaping	Shrubs, ornamental trees, sod, irrigation systems, planters
Site lighting	Parking lot poles and fixtures, pathway lighting, landscape lighting
Barriers and structures	Fencing, gates, retaining walls, bollards, dumpster enclosures
Amenities	Swimming pools, hot tub pads, decks, playgrounds, sport courts, fire pits
Signage	Monument and pylon signs and their foundations

The Landscaping Distinction

Not all landscaping is depreciable. The test is proximity and dependence: plantings immediately adjacent to a building that would be destroyed if the building were replaced are treated as depreciable improvements. General landscaping, mature shade trees, and grading that is inseparable from the land itself are not. Rev. Rul. 74-265 is the reference point, and this is exactly the kind of judgment a qualified engineer documents rather than assumes.

Qualified Improvement Property Also Sits at 15 Years

Separate from site work, qualified improvement property is any improvement to the interior of an existing nonresidential building, placed in service after the building was first placed in service. QIP excludes enlargements, elevators and escalators, and internal structural framework.

QIP was assigned a 15 year life by the CARES Act in 2020, correcting the drafting error in the 2017 tax act that had stranded it at 39 years. It now qualifies for bonus depreciation, which makes tenant improvements and interior renovations on commercial property immediately deductible. Details in our QIP and tenant renovations guide. Note that QIP applies only to nonresidential property; interior work on residential rentals does not qualify.

The 15 Year Depreciation Schedule

Absent bonus depreciation, 15 year property uses 150 percent declining balance with a half year convention, running across sixteen tax years:

Year	Rate	Year	Rate
1	5.00%	9	5.91%
2	9.50%	10	5.90%
3	8.55%	11	5.91%
4	7.70%	12	5.90%
5	6.93%	13	5.91%
6	6.23%	14	5.90%
7	5.90%	15	5.91%
8	5.90%	16	2.95%

With 100 percent bonus depreciation available, the practical outcome is a full year one deduction and this schedule never runs.

What It Is Worth on a Real Property

A $3,000,000 retail strip center with a large parking lot, allocated by an engineering study:

Component	Allocation	Year 1 with bonus
Land	$600,000	$0
5 year personal property	$210,000	$210,000
15 year land improvements	$480,000	$480,000
39 year structure	$1,710,000	~$44,000
Total	$3,000,000	~$734,000

The land improvements alone produced more first year deduction than the 5 year property did. On commercial properties with significant site work, the 15 year bucket is often the largest single source of accelerated depreciation. More context in our commercial property cost segregation guide.

Recapture Treatment

Land improvements are Section 1250 property, not 1245. On sale, depreciation is generally recaptured as unrecaptured Section 1250 gain at a maximum 25 percent rate rather than at ordinary rates. That is a meaningful advantage over 5 year property for a high bracket seller, and one reason the 15 year bucket is attractive on a risk adjusted basis. See depreciation recapture planning.

If You Already Own the Property

Land improvements sitting inside a 39 year building allocation for the last four years are not lost. A Form 3115 catch up claims the entire cumulative difference in the current year with no amended returns. When you later replace a parking lot or fence, a partial asset disposition election lets you write off the remaining basis of the old asset instead of depreciating two parking lots at once.

Frequently Asked Questions

What are 15 year land improvements?

Land improvements are depreciable site work assigned a 15 year MACRS recovery period, depreciated using the 150 percent declining balance method. They include parking lots, driveways, sidewalks, fencing, retaining walls, site lighting, underground utilities, drainage systems, irrigation, swimming pools, and landscaping that is dependent on the building. The land itself remains nondepreciable.

Is landscaping tax deductible or depreciable?

Landscaping that is closely associated with a building and would be destroyed if the building were replaced is generally depreciable as a 15 year land improvement. General landscaping and grading that is inseparable from the land is treated as part of nondepreciable land. Routine lawn care and maintenance on a rental property is a currently deductible operating expense rather than a capital improvement.

Do land improvements qualify for bonus depreciation?

Yes. With a 15 year recovery period, land improvements fall under the 20 year ceiling in Section 168(k) and qualify for 100 percent bonus depreciation for property acquired and placed in service after January 19, 2025. This applies to used property acquired as part of a building purchase, not just newly constructed improvements.

Is a parking lot 15 year property?

Yes. Asphalt and concrete paving, curbing, striping, and the base preparation beneath a parking lot are 15 year land improvements. On commercial properties with large parking areas, the paving alone can represent 10 percent or more of total acquisition basis, which is often the single largest accelerated depreciation category in a cost segregation study.

What is the difference between land improvements and qualified improvement property?

Both use a 15 year recovery period, but they cover different work. Land improvements are exterior site work such as paving, fencing, and utilities. Qualified improvement property is interior improvement to an existing nonresidential building placed in service after the building was, excluding enlargements, elevators, escalators, and internal structural framework. QIP does not apply to residential rental property.

How is a land improvement taxed when I sell the property?

Land improvements are Section 1250 property. Depreciation claimed is generally recaptured as unrecaptured Section 1250 gain, taxed at a maximum federal rate of 25 percent, rather than the ordinary rates that apply to Section 1245 personal property recapture. That gives 15 year components a better after tax profile on exit than 5 year components.

15 Year Land Improvements: The Depreciation Category Investors Forget