Section 179 Deduction for Rentals 2026 — Eligibility and Limits

Section 179 lets you elect to immediately expense qualifying business property up to an annual cap that indexes for inflation; the exception that costs landlords money is the taxable-income limitation — unlike bonus depreciation, 179 can't create or deepen a net business loss, so a year of negative rental income wastes the election entirely.

Section 179 expensing is the older, more-restrictive cousin of bonus depreciation. It used to be the only way to write off equipment in year one. Then TCJA expanded bonus to cover used property and pushed it to 100%, and 179 became a backup tool — useful for specific cases, mostly irrelevant for the rest.

For rental landlords, the picture is even narrower. The IRS historically excluded "property used for lodging" from §179, which kept most residential rental property out. Recent statutory updates loosened some of that. Below: what currently qualifies for a landlord, the dollar caps, and when 179 is actually the right tool vs. when bonus does the same job better.

The rule explained

Section 179 (IRC §179) lets a taxpayer elect to deduct the cost of qualifying tangible personal property in the year placed in service, instead of recovering it through depreciation over multiple years. It's elective on Form 4562 — you choose how much of an eligible asset to expense under 179 (up to the cap) and how much to depreciate normally.

Three key limits:

1. Annual dollar cap. The maximum 179 deduction is limited each year and indexes for inflation. In 2024, the cap was around $1.16M; verify the current year's cap with IRS Pub 946.
2. Phase-out threshold. If your total 179-eligible purchases in the year exceed an investment cap (~$2.89M in 2024, also indexed), the deduction phases out dollar-for-dollar above that threshold.
3. Taxable income limitation. Your 179 deduction can't exceed your aggregate taxable income from all active trades or businesses. Excess carries forward.

This third limit is what kills 179 for many landlords. If your rental shows a net loss, 179 is capped at $0 for the year. The deduction you "took" carries forward to a profitable year.

Who qualifies — landlord-specific rules

Historically, §179 excluded "property used predominantly to furnish lodging" — a rule that disqualified appliances, furniture, and most personal property in residential rentals. The TCJA modified this for some property, and the rules are nuanced.

What qualifies for landlords today:

The "lodging" exclusion is the headline issue: §179 is mostly a commercial-landlord and management-company tool, not a residential-rental tool. For residential rental personal property, bonus depreciation is usually the better mechanism — bonus has no taxable-income cap and no lodging exclusion.

How to calculate and claim

1. Identify all §179-eligible assets placed in service this year.
2. Confirm none individually triggers the phase-out (most small landlords are nowhere near $2.89M in annual purchases).
3. Compute your active business taxable income (aggregate across all trades/businesses, including any W-2 wages for this purpose).
4. Elect §179 on Form 4562, Part I. Specify the assets and amounts.
5. Apply bonus depreciation to any remaining basis (179 first, bonus second is the conventional ordering).
6. Apply normal MACRS to whatever remains.

Carryover: any 179 deduction limited by the taxable income cap rolls to next year. Track on Form 4562 Part I line 13.

Common errors

Using §179 on residential rental appliances. The lodging exclusion still applies to most residential furnishings. Bonus depreciation handles these without the restriction.

Forgetting the taxable income limit. Landlords with paper losses from depreciation can't actually use a §179 election in a loss year. The deduction carries, but you got nothing this year.

Mixing §179 and bonus in the wrong order. §179 is applied first, then bonus, then regular MACRS. Reversing the order can produce a different (and incorrect) result.

Heavy-vehicle §179 trap. SUVs over 6,000 lbs GVW have a special §179 cap (around $30,000 in recent years, indexed). Trucks with a cargo bed over 6 feet aren't subject to the SUV cap and can take the full vehicle cost (subject to the overall §179 cap). Get the vehicle classification right before assuming "full write-off."

Claiming §179 on equipment used <50% for business. §179 requires more than 50% business use in the year placed in service. Drop below 50% in a later year and you have to recapture prior §179 deductions.

Edge cases

179 on roofs and HVAC for commercial buildings. TCJA expanded §179 to include qualified non-residential building improvements: roofs, HVAC, fire protection, security systems. For a commercial landlord replacing an HVAC system, 179 can expense up to the annual cap. Residential landlords don't get this treatment for residential properties.

179 on real property qualified improvement property. Same expansion. QIP (interior commercial improvements) is §179-eligible.

Recapture if business use drops. If a §179 asset's business use falls to 50% or below in a year after placed-in-service, you recapture the prior §179 minus what depreciation would have been under MACRS. Ordinary income.

179 in an S-corp or partnership. The election is made at the entity level, but the limits apply at both levels. Each shareholder/partner gets their share of 179 deduction on K-1 and applies their personal taxable-income limit. A profitable entity can pass through 179 that an individual partner with a loss elsewhere can't use this year.

State conformity. Most states conform to federal §179, but with lower dollar caps. New York and Pennsylvania, for example, historically used lower caps than federal. Maintain dual schedules if you operate in non-conforming states.

Examples with numbers

Example 1: Commercial landlord HVAC

You own a small commercial building (basis $600K). Existing HVAC fails; you spend $35,000 on a new system. You have $90,000 of net commercial rental income for the year.

• §179-eligible (commercial HVAC qualifies): yes
• Annual §179 cap (assume current year ~$1.16M): not binding
• Phase-out threshold: not binding
• Taxable income limitation: $90,000 of business income (cap is the lesser of $35,000 or $90,000) → $35,000 fully deductible

Year-one deduction: $35,000 expensed under §179, vs. depreciating the HVAC as a 39-year building component ($897/year). At a 32% combined federal+state rate, that's roughly $10,900 of current-year tax savings.

Alternative: bonus depreciation on the same HVAC (if bonus rate is 60%) would deduct $21,000 first year + ~$2,000 residual MACRS = $23,000 — less than §179's full $35,000. For commercial HVAC, §179 wins.

Example 2: Residential rental — §179 mostly unavailable

You own a 4-unit residential building. You spend $14,000 on appliances (new fridges, stoves, washer/dryers across the units). Net rental income from the building: $22,000.

• §179-eligible: NO (residential lodging exclusion still applies to most appliances in residential rentals)
• Bonus depreciation (assume 60% rate): $14,000 × 60% = $8,400 + residual MACRS at 20% = $1,120 → $9,520
• Without bonus or §179, straight MACRS year-one (5-year, half-year): $14,000 × 20% = $2,800

The §179 attempt fails on eligibility. Bonus depreciation gives ~$9,520 of year-one deduction. The §179/bonus comparison isn't a contest because §179 isn't available — bonus is the only first-year acceleration tool for these assets.

Example 3: Heavy vehicle

You buy a 7,200 GVW SUV for $75,000 and use it 80% for the rental business (property visits, hardware runs, leasing).

• Business basis: $75,000 × 80% = $60,000
• SUV §179 cap (assume current year ~$30,000): limits §179 to $30,000
• Bonus on remaining $30,000 (assume 60% rate): $18,000
• Residual MACRS ($12,000 at 20% = $2,400, then × 80% = effective):
• Year-one deduction (combining §179 + bonus + MACRS): ~$50,400

Don't forget: drop business use below 50% in a future year and §179 recapture hits.

FAQ

§179 vs bonus depreciation — which should I use? For residential landlords on most personal property: bonus, because §179 is excluded by the lodging rule. For commercial landlords on roofs, HVAC, fire/security/alarm: §179 can expense the full cost in one year when bonus only gets the bonus percentage. The hybrid: use §179 to expense up to the income limit, bonus on the rest.

Can §179 create a net operating loss? No. The taxable income limitation caps §179 at zero net business income. Bonus depreciation has no such cap and can create or deepen a NOL.

Does §179 apply to leased equipment? Only if you own the equipment via a capital lease. Operating leases aren't 179-eligible — the lessor owns the property.

Do I have to take §179 if I'm eligible? No. §179 is elective. You can take a smaller amount or skip it entirely and depreciate normally. Strategic in years where you expect a higher bracket next year.

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This isn't tax advice. Consult a CPA familiar with US rental real estate.