Bonus Depreciation Is Back - Here's How We Evaluate Whether It Actually Helps You

Bonus depreciation is one of the most discussed tax benefits in short-term rental investing, and one of the most frequently misapplied. The version that passed in the Tax Cuts and Jobs Act of 2017 allowed investors to deduct 100% of eligible personal property and land improvements in year one. That 100% figure phased down to 60% in 2024. Current legislation under the Tax Relief for American Families and Workers Act has proposed restoring 100% bonus depreciation retroactively for 2023 and forward, and as of 2026 that restoration is likely in effect for qualifying property. But whether bonus depreciation actually helps a specific investor buying a specific Nashville STR depends on several factors that have nothing to do with the depreciation schedule itself.

Quick Answer: Bonus depreciation accelerates the timing of deductions on eligible personal property and land improvements, creating a large paper loss in year one. That loss only benefits an investor who can use it, meaning it must offset income the investor actually has and is taxed on. Active participation (via the 500-hour test), passive income from other sources, or real estate professional status determines whether the deduction is usable at all in the year it's taken.

How Bonus Depreciation Works for STRs

Standard real estate depreciation works on a long timeline: residential property depreciates over 27.5 years and commercial over 39 years. On a $600,000 property, the annual depreciation deduction under straight-line depreciation is approximately $21,800 per year. That's a meaningful deduction but spread over nearly three decades.

Not everything in a property depreciates on the residential real estate schedule. Personal property (appliances, furniture, fixtures, window treatments, carpeting, certain HVAC components) depreciate over 5-7 years. Land improvements (driveways, landscaping, fencing, pools, patios) depreciate over 15 years. These shorter-life assets are eligible for bonus depreciation.

Bonus depreciation allows you to accelerate the deduction on those eligible assets from their standard schedule into year one. Instead of depreciating a $40,000 furniture package over 5-7 years, you deduct the full $40,000 in year one. Instead of spreading $60,000 in land improvements over 15 years, you take the full $60,000 deduction immediately.

To identify the value of assets in each depreciation category, you need a cost segregation study. The study takes a licensed engineer through the property to allocate the total purchase price across asset classes: real property (building), personal property (5/7-year), land improvements (15-year), and land (not depreciable). The personal property and land improvement totals become the bonus depreciation base.

The Requirement That Determines Everything: Can You Use the Loss?

This is the question that most marketing around bonus depreciation glosses over. Bonus depreciation creates a paper loss. That loss is only valuable if it can offset income that is otherwise taxable. Whether the loss can be used depends on your tax situation, not the property's depreciation schedule.

For a short-term rental to produce usable losses under the passive activity rules, one of three conditions must hold. First, the investor meets the material participation test for the STR activity, most commonly the 500-hour test. When an STR qualifies as non-passive through material participation, its losses can offset ordinary income including wages. Second, the investor qualifies as a real estate professional, which allows rental losses broadly to offset ordinary income. Third, the investor has passive income from other sources against which the passive STR losses can offset.

A W-2 employee earning $250,000 per year who buys a Nashville STR but uses a full-service property manager does not meet the material participation test and is not a real estate professional. The bonus depreciation creates a $90,000 paper loss in year one. That loss sits in a passive activity loss carryforward. It doesn't reduce the investor's W-2 income. It waits until the investor either generates passive income or sells the property. The immediate tax benefit that was sold to them doesn't materialize.

This is the most common miscalculation in STR tax planning. Before modeling bonus depreciation, the first question is always: can this specific investor actually use this loss this year?

What a Cost Segregation Study Actually Does

A cost segregation study is an engineering-based analysis that reclassifies components of a real property acquisition from the long-life real property category into shorter-life personal property and land improvement categories. The study is performed by a licensed cost segregation firm and produces a report that documents each reclassification with engineering rationale.

For a $700,000 Nashville STR purchase, a typical cost segregation study might identify $80,000-$120,000 in personal property (5/7-year assets) and $40,000-$70,000 in land improvements (15-year assets). The exact amounts depend on the property type, age, and build quality. Newer construction with higher-end finishes tends to have a larger percentage of personal property.

The cost of a cost segregation study typically runs $3,000-$8,000 depending on property size and complexity. The study only makes economic sense if the resulting tax benefit exceeds the study cost. For a property where the eligible assets are modest and the investor can't use the resulting passive losses, the study is an expense with no offsetting benefit.

For STR buyers integrating this into acquisition analysis, our STR advisory page covers how we build tax planning into the full investment model during the buying process.

The Math: What Bonus Depreciation Looks Like on a Nashville STR

Let's make this concrete with a Nashville example. A buyer purchases a 3-bedroom STR in East Nashville for $620,000. The cost segregation study is completed and identifies $95,000 in 5-year personal property and $55,000 in 15-year land improvements. Total eligible for bonus depreciation: $150,000.

Under 100% bonus depreciation, the investor takes a $150,000 deduction in year one. On top of the property's first-year operating loss or income, this creates substantial paper loss. If the property generated $75,000 in gross revenue, $45,000 in expenses (platform fees, cleaning, maintenance, insurance, property management), and now $150,000 in accelerated depreciation, the property shows a $120,000 paper loss for tax purposes.

If the investor meets the 500-hour material participation test and qualifies as an active participant in the STR, that $120,000 loss offsets ordinary income. At a 32% marginal federal rate and an 8% Tennessee income tax-exempt environment (Tennessee has no income tax on wages), the tax savings on $120,000 at 32% federal is approximately $38,400 in year one.

That's the actual value of the bonus depreciation play in this scenario. Not $150,000. $38,400, net of the cost segregation fee and CPA consultation.

In year two and beyond, the depreciation from those assets drops to zero because they were fully deducted in year one. The remaining depreciation is only on the building structure, which follows the 27.5-year schedule. The tax benefit front-loads into year one and normalizes thereafter.

When Bonus Depreciation Doesn't Help

Bonus depreciation doesn't help if the investor can't use the resulting passive losses and has no passive income to offset them. In this scenario, the deduction just accumulates in a carryforward and has time value consequences but no immediate cash impact.

Bonus depreciation also doesn't help if the Alternative Minimum Tax (AMT) applies. Certain deductions are addbacks under AMT rules, and the net benefit after AMT adjustment may be less than projected. AMT exposure is a CPA-level assessment for high-income investors.

It doesn't help if the investor has significant suspended passive losses from other real estate activities that are already offsetting available passive income. The incremental benefit of additional passive losses may be zero if the existing carryforward is already consuming all available passive income.

And practically, it doesn't help investors in their first year of STR ownership who are still ramping up operations and finding their footing with management. The 500-hour test needs to be met in the tax year the deduction is claimed. If a buyer closes in October and claims material participation for those three months, they're claiming roughly 125 hours of qualifying activity, not 500. The material participation test for the full year cannot be met on a partial year of ownership.

How We Incorporate This Into Acquisition Analysis

When a buyer brings up bonus depreciation as part of their STR investment rationale, we walk them through this framework before it becomes part of the decision basis.

The questions we ask before recommending a cost segregation study: What is this investor's annual income and tax situation? Are they likely to qualify for material participation given their schedule and management plan? Do they have a CPA who specializes in real estate and has reviewed the STR structure? Has the CPA confirmed that the passive losses would be usable in the acquisition year?

If the answers support the strategy, we build the bonus depreciation upside into the acquisition model as a year-one cash event, with the understanding that it normalizes in year two. We also make sure the underwriting still makes sense at the baseline without the tax benefit, because tax law changes and personal situations change.

For buyers who want to walk through the full STR acquisition framework including tax planning, you can use our Nashville STR underwriting calculator as a starting point, and you can connect with Jack directly through the visit page to work through the specifics of a property you're evaluating.

FAQ

Do I need a cost segregation study to claim bonus depreciation?

You don't legally require a cost segregation study to claim bonus depreciation, but without one, you're relying on your own classification of assets, which is difficult to defend under audit. For any property purchase above $500,000, a cost segregation study is worth the cost relative to the depreciation benefit and audit protection it provides.

Does bonus depreciation apply to the full purchase price?

No. It applies only to the personal property (5/7-year) and land improvements (15-year) components of the purchase price as identified in the cost segregation study. The building structure and land are not eligible. On a typical STR, eligible assets might represent 15-30% of the total acquisition cost.

What happens if I sell the STR and have taken bonus depreciation?

Depreciation is recaptured as ordinary income at sale under Section 1250 (buildings) and Section 1245 (personal property). On bonus-depreciated personal property, the recapture rate can be up to 25-37% depending on your income tax bracket. A 1031 exchange can defer the recapture if you roll into a like-kind property.

Can I claim bonus depreciation if the property is held in an LLC?

Yes, subject to the same passive activity and material participation rules applying through the entity. The structure of the LLC (single-member vs. partnership) affects how the income and losses flow through to the investor's personal return. Entity structure is a CPA-level decision.

Is there a deadline for placing property in service to qualify for 2026 bonus depreciation?

The property must be placed in service during the tax year for which the deduction is claimed. For 2026 bonus depreciation, the property needs to be acquired and operational in 2026. The specific percentage rate and any phase-down schedule should be confirmed with a CPA, as legislation can change.