Bonus Depreciation on a $1M Airbnb: Real Numbers for 2026

The most common question short-term rental investors ask about bonus depreciation is also the most reasonable one: how much can I actually deduct? The answer is almost never a clean percentage. It depends on land value, property age, finish quality, outdoor amenities, and whether the property comes furnished. Two $1M Airbnbs can produce Year 1 deductions that differ by $80,000 or more — and that gap has nothing to do with the purchase price.

This article runs the full numbers on three $1M short-term rental scenarios under IRS §168(k) 100% bonus depreciation for 2026. Each scenario uses realistic property characteristics, shows the line-item bonus-eligible breakdown, and calculates tax savings at both the 32% and 37% federal brackets. By the end, you will have a framework to estimate any property's potential before you make an offer.

What Drives the Difference Between STR Properties

Before the scenarios, it helps to understand why two $1M properties can produce such different depreciation results. There are four primary drivers:

1. Land Value Ratio

You cannot depreciate land. Only the improvements — the building and its components — are depreciable. A $1M property where land represents 15% of value has $850,000 in improvements. The same purchase price in a high-land-value location (say, a beachfront lot where land is 50% of value) has only $500,000 in improvements. The higher the land value ratio, the smaller the depreciable base, and therefore the smaller the bonus-eligible deduction.

2. Outdoor Amenities

This is the single biggest driver of bonus depreciation variation among STR properties at the same price point. Pools, hot tubs, outdoor kitchens, fire pits, pergolas, and paved outdoor living areas are classified as 15-year land improvements under IRS cost segregation guidelines — and they are 100% bonus-eligible in Year 1. A property with a pool and outdoor kitchen might have $60,000–$120,000 in 15-year property that a comparable property without them entirely lacks.

3. Interior Finish Level

Custom cabinetry, stone countertops, decorative lighting, high-end appliances (Wolf, Sub-Zero, Miele), frameless glass shower enclosures, and specialty flooring like wide-plank hardwood or designer tile are classified as 5-year personal property. A luxury STR with $180,000 in high-end finishes generates substantially more 5-year property than a basic cabin with standard builder-grade interiors. Finish level is also why newer construction tends to outperform older properties — modern builds are more likely to have high-finish components already incorporated into the purchase price.

4. Furnished vs. Unfurnished

All furniture, fixtures, and equipment (FF&E) that conveys with the property are 5-year personal property eligible for 100% bonus depreciation. A fully-furnished short-term rental — beds, sofas, dining sets, electronics, outdoor furniture, hot tub accessories — might have $60,000–$90,000 in FF&E value. An unfurnished property has none. For STRs specifically, furnished is almost always the norm, but the quality and volume of FF&E varies significantly.

Scenario A: Basic Cabin — Low-Finish, Minimal Outdoor Amenities

Scenario A is the baseline: a solid STR but one without the amenity-heavy profile that pushes bonus depreciation to the high end. The 20% land ratio is typical for non-coastal mountain markets. The 12% five-year property reflects standard finishes, basic appliances, and modest FF&E — no luxury fixtures, no Sub-Zero, no custom cabinetry. The 5% land improvements come entirely from the patio surface, fire pit, exterior lighting, and basic landscaping. There is no pool. Total bonus-eligible is 17% of purchase price.

Even at the low end, this property generates $136,000 in Year 1 deductions — $50,320 in tax savings at 37%. For an investor paying $1M for this property, that is effectively a $50,000+ rebate from the federal government in Year 1 alone.

Scenario B: Mid-Range STR — Pool, Decent Finishes, Fully Furnished

Scenario B shows what a pool does to the numbers. The 15-year land improvements jump from $40,000 to $88,000 — a difference of $48,000 driven almost entirely by the heated pool, hot tub, and pool deck. The 5-year personal property also increases because the property has higher-finish interiors: quartz countertops, decorative lighting package, mid-luxury appliances, and more substantial FF&E from better furnishing packages typical of pool properties listed at this price point.

The difference in Year 1 deductions between Scenario A and Scenario B is $90,000 — both on $1M purchases. At 37%, that $90,000 gap translates to $33,300 more in tax savings. The pool and the better finishes are not just STR revenue drivers — they are also bonus depreciation amplifiers.

Scenario C: Luxury Fully-Furnished STR — Maximum Bonus Potential

Scenario C is what the top end looks like. Three factors combine to push this property to 28% bonus-eligible: a lower land ratio (18% vs. 22% in Scenario B, because this is a newer construction on a less desirable land plot but with premium improvements), a full luxury finish package that generates $172,000 in 5-year property, and an extensive outdoor living setup — pool, spa, outdoor kitchen, and pergola — that together produce $108,000 in 15-year improvements.

At 37%, a $280,000 deduction translates to $103,600 in Year 1 federal tax savings on a $1M investment. In practical terms: the effective acquisition cost of this property, after accounting for the tax benefit, is $896,400. That is before any revenue, before any appreciation. That is the power of combining the STR active income classification with §168(k) bonus depreciation.

Side-by-Side Comparison: All Three Scenarios

The spread between Scenario A and Scenario C is $144,000 in Year 1 deductions — $53,280 in tax savings at 37% — on the same $1M purchase price. That gap is entirely explained by amenity profile and finish quality. Nothing else changed.

What This Means for Your Offer Price

Most STR investors think about bonus depreciation as a post-closing benefit — something nice to discover when their CPA runs the numbers. The investors consistently getting the best returns think about it differently: they factor the Year 1 tax savings into the effective acquisition cost before submitting an offer.

Here is the logic. Two properties are listed at $1M. Property A has a bonus-eligible ratio of 17%. Property B has a ratio of 26%. At a 37% bracket:

• Property A: $50,320 in Year 1 savings → effective cost $949,680
• Property B: $96,200 in Year 1 savings → effective cost $903,800

If Property B also generates comparable STR revenue, it is a meaningfully better deal at the same list price. Alternatively, you might be willing to pay $50,000 more for Property B and still come out ahead on a total-return basis — because the additional cost is offset by the higher bonus depreciation benefit.

This is precisely why screening for depreciation potential before the offer matters. To understand the full mechanics behind how the two-part loophole works — the active income classification and the §168(k) bonus — see What Is Bonus Depreciation for Short-Term Rentals? For a direct comparison of when a formal cost segregation study is worth the cost vs. when an AI estimate is sufficient, see Is a Cost Seg Study Worth It for Your Airbnb?

Can You Do This Without a Cost Segregation Study?

Technically, yes. The IRS does not require a formal cost segregation study to claim bonus depreciation. You can classify property components yourself — or have your CPA do so — using IRS asset class tables and your professional judgment. Many investors take this approach on properties under $500,000 where the potential upside does not justify a $6,000–$10,000 study fee.

The practical risk: self-allocated cost segregation is easier to challenge in an audit, and it typically underestimates bonus-eligible property by 15–30% compared to a properly engineered study. The formal study produces a defensible, asset-by-asset report prepared by a qualified engineer. That documentation is what protects you if the IRS asks questions.

How to Know Before You Buy

The scenarios in this article illustrate a consistent theme: the property with the best STR profile for bonus depreciation is not necessarily the most expensive one. It is the one with the best combination of:

• Low land value ratio (more improvements per dollar)
• Extensive outdoor amenities (pool, hot tub, outdoor kitchen)
• High-finish interiors (custom cabinetry, stone, luxury appliances)
• Full FF&E package (furnished with quality furniture and electronics)
• Newer construction (more accelerated components built in)

You can assess the first factor — land value ratio — from county assessor records, which DepreciMax pulls automatically for every property in our market search. The remaining four factors are visible in listing photos if you know what to look for. Our AI photo analysis engine is trained specifically on STR listing images to identify and classify each component.

Start by searching your target market free. Every property card shows an estimated bonus depreciation score and Year 1 deduction range. When you find a property that scores well, upload 7–9 listing photos to get the full line-item breakdown — before you make an offer, before you pay for a formal study.

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