When you’re looking at commercial real estate improvements, one strategic question looms large: should you accelerate deductions now—or take a more gradual approach over time? For many businesses, the answer hinges on the status of their property, the kinds of improvements made, business income, and future tax plans.
What counts as “Qualified Improvement Property” (QIP)?
In the commercial space, most improvements to non-residential buildings must be depreciated over a 39-year period. But a special category of improvements — called Qualified Improvement Property (QIP) — can qualify for faster write-offs.
In essence, QIP covers interior improvements to a nonresidential building after the building was first placed in service. But it does not include the enlargement of the building, elevators/escalators, or structural framework.
QIP has a 15-year recovery period and is eligible for bonus depreciation as well as Section 179 expensing.
How Bonus Depreciation & Section 179 Apply
100% Bonus Depreciation
Recent law change under the One Big Beautiful Bill Act (OBBBA) restores and makes permanent the ability to claim 100% bonus depreciation for qualifying property placed in service after January 19, 2025. For assets acquired January 1, 2025–January 19, 2025, the first-year bonus depreciation is only 40%.
Section 179 Expensing
Under Section 179, businesses may elect to immediately deduct eligible assets (rather than depreciate over time). The OBBBA increased the 2025 tax-year threshold to $2.5 million (up from $1.25 million) and the phase-out begins at $4 million (previously ~$3.13 million). For QIP specifically, Section 179 may cover items beyond interior improvements—including HVAC, roofing, fire/protection and alarm systems, and security systems (if placed in service after the building was first placed in service).
Why “Accelerate Now” Might Be a Good Move
- If you immediately deduct the full cost of QIP via bonus depreciation or Section 179, you reduce taxable income in the first year.
- That can boost cash‐flow, reinvestment, debt reduction, or other growth strategies.
- With the permanent 100% bonus depreciation in place (for assets after Jan. 19, 2025) you have certainty of the tax treatment.
Why Spreading Out the Deductions Could Be Better
There are important caution flags:
- The “excess business loss” rule can limit your deduction if the accelerated deduction creates a large loss in a non-corporate pass-through setting. For tax year 2025, the threshold is $313,000 ($626,000 married filing jointly).
- Large first-year write-offs can lead to higher tax rates on recapture when you sell the property. If you claimed bonus depreciation or Section 179 on QIP, depreciation recapture is taxed as ordinary income (up to ~37%) plus applicable NIIT. If you chose straight-line depreciation instead, you may qualify for lower 25% rate on gain (for QIP held more than 1 year) plus NIIT.
- Claiming large deductions now reduces future depreciation deduction potential. If you expect higher tax brackets or income in future years (or expect tax rates to increase), you might prefer to preserve deduction potential for later.
Making the Decision: What to Consider
- Your current income vs. expected future income.
- Whether you anticipate higher tax rates in the future (or an increase in tax income).
- The likelihood of selling the property (and facing depreciation recapture).
- Your business structure (corporation vs. pass-through) and whether you might hit the excess business loss limitation.
- Whether you have eligible QIP (vs. non-eligible improvements).
- Timing: whether the improvements will be placed in service after Jan. 19, 2025, so they qualify for 100% bonus.
- State tax and local tax rules—some states may not conform to federal bonus depreciation rules.
The tax landscape for commercial property improvements is rich with opportunity—but it’s not one-size-fits-all. While the ability to write off QIP immediately is powerful, it may not always align with your long-term strategy. Spreading deductions over time can sometimes better match income, tax rate expectations, and sale horizon.
If you’d like help evaluating your specific scenario, we can walk you through the numbers, estimate tax impact, and align the depreciation strategy with your business goals.
