Section 179 Deduction FAQs (2026)

Section 179 is a federal tax provision that lets businesses deduct the full purchase price of qualifying equipment and software in the year it’s placed in service, rather than depreciating it over several years. The deduction is subject to annual dollar limits, a phase-out threshold, and a taxable income limitation. Listed property (such as vehicles) must generally be used more than 50% for business to qualify. For full eligibility details, see our Qualifying Property page.

For tax years beginning in 2026, the maximum Section 179 deduction is $2,560,000. The deduction begins to phase out when the total cost of qualifying property placed in service exceeds $4,090,000; each dollar over that threshold reduces the available deduction dollar-for-dollar (fully phased out at $6,650,000). These limits are adjusted annually for inflation.

Note: Special rules and caps may apply to certain vehicles. For example, certain SUVs have a separate, lower Section 179 cap (see below).

For current-year details and examples, see our Section 179 Deduction page. For background on recent legislative changes and effective dates, see our Legislative History page.

Yes. Section 179 is a permanent tax code provision that allows annual deductions for qualifying property placed in service by the end of your tax year. However, annual dollar limits, a phase-out threshold, and a taxable income limitation apply, so it’s important to consult a tax professional to optimize your yearly strategy.

Any business that purchases or finances qualifying property and places it in service during the tax year can potentially claim Section 179. This includes sole proprietorships, S corporations, C corporations, partnerships, and LLCs (regardless of how they’re taxed). The business must have taxable income from the active conduct of a trade or business. There is no minimum or maximum business-size requirement, though the phase-out threshold is designed so that the deduction primarily benefits small and mid-sized businesses. Consult a tax professional for eligibility questions specific to your situation.

Section 179 is a tax deduction, not a tax credit. A deduction reduces your taxable income — so the actual tax savings depends on your tax bracket. A tax credit, by contrast, reduces your tax bill dollar-for-dollar. For example, a $100,000 Section 179 deduction for a business in the 24% bracket would reduce federal taxes owed by approximately $24,000 (not by $100,000). State tax savings, if applicable, would be additional. For more on how Section 179 works, see our Section 179 Deduction page.

Multiply your equipment cost by your combined federal and state tax rate for an approximate first-year savings estimate. Section 179 deductions reduce taxable income dollar-for-dollar, and any remaining basis may qualify for bonus depreciation (generally 100% for eligible property acquired and placed in service after Jan. 19, 2025). For an instant calculation, try our 2026 Section 179 Calculator.

Many business vehicles can qualify for Section 179 if used more than 50% for business, though deduction limits vary by vehicle weight and type. Work vehicles and vans designed for non-personal use may qualify for the full Section 179 deduction. SUVs rated between 6,001 and 14,000 lbs GVWR have a separate Section 179 cap of $32,000 for 2026, prorated by business use. Passenger cars and light trucks (6,000 lbs GVWR or less) are subject to annual “luxury auto” depreciation limits, also prorated by business use.

For details, see our Section 179 Vehicle Deductions page.

Financing generally works fine—Section 179 is based on when the vehicle is placed in service and whether you’re treated as the owner for tax purposes. A true lease generally doesn’t qualify for Section 179 (you typically deduct lease payments instead), but some lease-to-own arrangements may be treated as a purchase. In all cases, the vehicle must be used more than 50% for business and placed in service during the tax year.

Deduction rules depend on the vehicle’s weight class, design, and business use percentage. Work vehicles and vans not designed for personal use may qualify for the full Section 179 deduction. SUVs rated between 6,001 and 14,000 lbs GVWR have a Section 179 cap of $32,000 for 2026 (prorated by business use), with remaining basis potentially eligible for bonus or regular depreciation. Passenger cars and light trucks (6,000 lbs GVWR or less) are subject to annual “luxury auto” depreciation limits, also prorated by business use.

For details, see our Section 179 Vehicle Deductions page.

Section 179 is an election to expense qualifying property up to annual limits and is generally limited to taxable income from the active conduct of a trade or business (with carryforward of disallowed amounts). Bonus depreciation (additional first-year depreciation), when available, is generally not limited by taxable income and can create or increase a net operating loss, subject to NOL rules. Many businesses use Section 179 first, then apply bonus depreciation to remaining eligible basis.

Yes, you can combine Section 179 with bonus depreciation to maximize your tax benefits. After taking the Section 179 deduction, you can apply bonus depreciation (generally 100% for eligible property acquired and placed in service after Jan. 19, 2025) to any remaining eligible basis. This strategy works particularly well for larger equipment purchases that exceed the Section 179 limit. For a detailed comparison of these two tax benefits, see our guide on Section 179 vs. Bonus Depreciation.

Elect the deduction by completing Part I of IRS Form 4562 and attaching it to your timely filed tax return (including extensions) for the year the property is placed in service. Keep purchase/financing paperwork and business-use records with your files. For step-by-step guidance, see our How to Elect Section 179 page.

IRS Form 4562 (Depreciation and Amortization). Complete Part I to elect the Section 179 deduction and attach the form to your timely filed federal tax return, including extensions, for the year the property is placed in service. Some states require separate forms or schedules. For step-by-step filing guidance, see our How to Elect Section 179 page. For state-specific requirements, see our Section 179 by State page.

Not always. While many states follow federal Section 179 rules, others impose stricter limits or exclude certain assets. These differences can affect your overall tax liability. Always review your state’s guidelines or consult a local tax expert to ensure full compliance with state-specific rules. For more details, see State Section 179 Conformity.

Recapture means you may owe tax on a previously claimed Section 179 deduction if the asset’s business use drops or you dispose of it early. Specifically, if business use falls to 50% or less, the excess of the Section 179 deduction over what MACRS depreciation would have allowed must be reported as ordinary income. For passthrough entities, this is computed at the entity level and passed through to owners via Schedule K-1 and Form 4797.

Yes. Congress has updated Section 179 (and bonus depreciation) multiple times—changing dollar limits, eligible property rules, and first-year depreciation rates. While Section 179 is a permanent part of the tax code, specific limits and related depreciation rules can change. For a timeline of major updates, see our Section 179 Legislative History page.

Vehicle eligibility depends on weight, design, and business use — with different rules and caps for work vehicles, SUVs, and passenger cars. See the full answer in the Fundamentals section above, or visit our Section 179 Vehicle Deductions page for details.

Financing generally preserves Section 179 eligibility, but true leases are treated differently for tax purposes. See the full answer in the Fundamentals section above.

Deduction limits vary significantly by vehicle weight class and type. See the full answer in the Fundamentals section above, or visit our Section 179 Vehicle Deductions page.

To substantiate a Section 179 vehicle deduction, keep purchase or financing documents, registration/title records, and a contemporaneous mileage log (dates, miles, and business purpose) showing more than 50% business use. Good recordkeeping matters because vehicles are “listed property” with stricter substantiation rules, and deductions may be reduced or recaptured if business use drops to 50% or less.

Qualifying equipment includes tangible business property such as machinery, computers, office furniture, and off-the-shelf software used more than 50% for business. Vehicles can also qualify, but rules vary: many non-passenger “work” vehicles may be eligible for larger deductions, while passenger vehicles are subject to special caps and limitations.

Yes. Used equipment qualifies if it is “new to your business” and meets all IRS criteria, including a business-use threshold of over 50%. It must be purchased from a non-related party and placed into service during the tax year, all within the annual deduction limits.

Off-the-shelf software generally qualifies if it is readily available for purchase by the general public, subject to a nonexclusive license, and not substantially modified. However, many subscription-based or cloud-hosted services may not meet the requirements for Section 179 property. For details, see our Section 179 and Software page, or consult a tax professional for your specific situation.

If equipment is sold or disposed of before the end of its useful life, you may have to recapture some of the previously deducted amount as taxable income. The recapture rules adjust your benefit if the asset’s business use decreases. Consult IRS guidelines or a tax professional for proper handling.

Generally, no. Section 179 applies primarily to tangible personal property (equipment, machinery, vehicles) and off-the-shelf software. However, certain improvements to the interior of an existing nonresidential building — known as qualified improvement property (QIP) — may be eligible. QIP can include improvements like HVAC, roofing, fire protection, and security systems, but does not include building enlargement, elevators or escalators, or changes to the building’s internal structural framework. For more on what qualifies, see our Qualifying Property page, or consult a tax professional for your specific situation.

Section 179 generally does not apply to land, buildings (other than certain qualified improvement property), inventory held for resale, property used outside the United States, property acquired from related parties, or air conditioning and heating units for residential rental property. Property used 50% or less for business also does not qualify. For a detailed breakdown of what does and doesn’t qualify, see our Qualifying Property page.

If you purchase or finance equipment, you can generally claim Section 179 in the year the asset is placed in service. A true lease generally doesn’t qualify for Section 179 because you don’t own the property for tax purposes—instead, you typically deduct lease payments as you pay them. Some lease-to-own arrangements may be treated as a purchase; check with your tax professional. See our Section 179 Qualified Financing page for more.

Deduction limits vary by vehicle weight class — from full deductions for qualifying work vehicles to specific caps for SUVs and passenger cars. See the vehicle Q&As in the Fundamentals section above, or visit our Section 179 Vehicle Deductions page.

Section 179 is limited to taxable income from the active conduct of a trade or business, so you may not be able to use the full deduction in a loss year. Any disallowed Section 179 amount is generally carried forward to future tax years. Bonus depreciation, by contrast, is not limited by taxable income and can create or increase a net operating loss, which may carry forward under the NOL rules. Consult a tax professional to determine the best strategy for your situation.

Yes. If your Section 179 deduction is limited by taxable income in the current year, the disallowed amount can generally be carried forward to future tax years indefinitely. The carryforward is used in subsequent years, still subject to the taxable income limitation in each future year. Note that this carryforward applies only to the taxable income limitation — not to the dollar limit or phase-out threshold, which are determined in the year the property is placed in service. Consult a tax professional for your specific situation.

The property must be placed in service — ready and available for use in your business — by the end of your tax year (December 31 for most calendar-year taxpayers). Ordering or paying for equipment is not enough; it must be operational by the deadline. The Section 179 election is then made on your timely filed return (including extensions) for that tax year. Missing the placed-in-service deadline generally defers the deduction to the following year.

You generally cannot claim the Section 179 deduction for that tax year. The equipment must be placed in service — delivered, set up, and ready for use — before the end of your tax year (December 31 for most businesses). Simply ordering, paying, or signing a contract is not enough. If the equipment isn’t operational by year-end, the deduction would apply to the following tax year instead. Plan delivery and installation timelines accordingly, especially for year-end purchases.