Section 179 of the IRS tax code allows businesses to deduct the full cost of qualifying equipment and software in the year it is purchased, rather than spreading the deduction across five, seven, or fifteen years through standard depreciation. In 2026 the maximum deduction is $2,560,000, per IRS Rev. Proc. 2025-32. For a small business owner buying $30,000 of equipment, Section 179 can save thousands of dollars in taxes immediately rather than over the life of the asset.

2026 Section 179 Limits at a Glance

Item 2026 amount
Maximum deduction $2,560,000
Phase-out starts at $4,090,000 in total purchases
Phase-out complete at $6,650,000
Bonus depreciation rate (2026) 100% (permanent under OBBBA for property acquired after Jan 19, 2025)
SUV Section 179 cap $32,000
Passenger vehicle cap (§280F, separate rule) Confirm current-year amount at irs.gov

Section 179 vs. Standard Depreciation: The Difference in Real Money

Without Section 179, a $50,000 piece of equipment would be depreciated over its useful life (typically 5 or 7 years for most business property under MACRS). With Section 179, you deduct it all in year one.

Worked Example: $50,000 CNC Machine

Approach Year 1 deduction Tax saved (24% bracket)
5-year MACRS (standard) $10,000 $2,400
Section 179 (full expensing) $50,000 $12,000

Section 179 puts $9,600 more cash in your pocket in year one — money you can reinvest immediately. (With 100% bonus depreciation now permanent, you’d reach this same full first-year deduction even without electing Section 179 — see below.)

What Qualifies for Section 179

Eligible property:

Category Examples
Machinery and equipment Manufacturing equipment, HVAC, generators
Computers and technology Laptops, servers, networking equipment
Office furniture and fixtures Desks, chairs, filing cabinets
Business vehicles (subject to caps) Trucks, vans, heavy SUVs over 6,000 lbs
Off-the-shelf software Must be purchased, not custom-built
Qualified Improvement Property (QIP) Interior improvements to commercial buildings
Security systems Business alarm and camera systems

What does NOT qualify:

  • Land or the cost of buildings themselves
  • Inventory held for sale (raw materials, merchandise)
  • Assets used predominantly for personal purposes
  • Air conditioning and heating units for regular home use
  • Assets not placed in service during the tax year

Vehicle Limits Under Section 179

Vehicle deductions are capped based on the vehicle’s Gross Vehicle Weight Rating (GVWR):

Vehicle type 2026 Section 179 cap
Passenger car (under 6,000 lbs) Subject to separate §280F luxury-auto limits — confirm current amount at irs.gov
Heavy SUV or truck (6,001–14,000 lbs) $32,000
Work vans and trucks (used exclusively for business) Full cost up to $2,560,000
Delivery vans (no personal use, cargo only) Full cost eligible

The 50% business use rule: Any vehicle claimed under Section 179 must be used more than 50% for business purposes. If business use drops below 50% in a later year, you may be required to recapture (pay back) a portion of the deduction.

Best candidates for full vehicle deduction: Box trucks, cargo vans with no rear windows, vehicles with a manufacturer’s GVWR over 6,000 lbs used exclusively for business.

Section 179 + Bonus Depreciation: How They Stack

The OBBBA (signed July 2025) made 100% bonus depreciation permanent for qualifying property acquired after January 19, 2025 — reversing the prior phase-down schedule that had been reducing the bonus rate toward zero by 2027. You can combine Section 179 and bonus depreciation on the same purchase, though with bonus depreciation at 100%, the practical benefit of also electing Section 179 mostly comes down to the income limitation (see below) and state tax conformity, since many states don’t fully conform to federal bonus depreciation rules.

Example: $100,000 Equipment Purchase

Step Amount
Section 179 (full immediate deduction) $100,000
Bonus depreciation $0 (nothing left after Section 179)
Total year-1 deduction $100,000

If Section 179 is limited by your income cap, 100% bonus depreciation now picks up the entire remainder — unlike the 2024-2025 phase-down years when only a partial bonus rate applied:

Step Amount
Section 179 (limited by income) $40,000
Remaining basis $60,000
Bonus depreciation at 100% $60,000
Total year-1 deduction $100,000 (full cost, regardless of the Section 179 income cap)

The Income Limitation

Section 179 cannot exceed your taxable income from active business activities. You cannot use it to create a loss. Unused deductions carry forward indefinitely to future years. Bonus depreciation has no such income cap — this is now the main practical reason to rely on bonus depreciation rather than (or in addition to) Section 179 when a business wants to fully expense an asset even in a loss year.

Qualified Improvement Property (QIP)

Qualified Improvement Property — improvements to the interior of non-residential commercial buildings — is 15-year property and qualifies for both Section 179 and 100% bonus depreciation (now permanent under OBBBA). This means a restaurant that renovates its kitchen, an office that installs new flooring, or a retail store that upgrades its interior can deduct those costs in year one rather than over 39 years.

How to Claim Section 179

  1. Complete IRS Form 4562 (Depreciation and Amortization). Part I covers Section 179 elections.
  2. Make the election on your return by the due date (including extensions). You can generally make or revoke a Section 179 election on an amended return.
  3. List each qualifying asset with its description, date placed in service, cost, and the amount elected under Section 179.
  4. Claim on your business return: Schedule C (sole proprietors), Form 1065 (partnerships), Form 1120-S (S corporations), or Form 1120 (C corporations).

Section 179 for Software and Tech

Off-the-shelf software purchased (not licensed or subscribed to) qualifies for Section 179. This includes:

  • Purchased desktop software (accounting, design, CAD)
  • Point-of-sale systems
  • Enterprise software with a one-time purchase license

Does NOT qualify: SaaS subscriptions, cloud-based software you access but do not own.

WealthVieu
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