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CalcWolf Business 100% Bonus Depreciation Calculator (2026 OBBBA)
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100% Bonus Depreciation Is Back: Calculate Your Tax Savings

The OBBBA restored 100% bonus depreciation for business equipment. Calculate the first-year tax write-off on vehicles, machinery, software, and more.

📅 Updated April 2026 Formula verified 📖 4 min read 🆓 Free · No sign-up

100% Bonus Depreciation Is Restored for 2026

The OBBBA permanently restored 100% first-year bonus depreciation for qualifying business assets. Under the TCJA, bonus depreciation had been phasing down from 100% (2022) to 80% (2023), 60% (2024), 40% (2025). The OBBBA reversed this phase-down, making full expensing permanent for assets placed in service after January 19, 2025.

This means a business purchasing $100,000 in equipment in 2026 can deduct the entire $100,000 in year one instead of spreading it across 5-7 years. For a business in the 24% tax bracket, that is $24,000 in immediate tax savings.

What Qualifies for 100% Bonus Depreciation

Qualifying assets include most tangible business property with a recovery period of 20 years or less: machinery and equipment, computers and software, office furniture, certain vehicles (see limitations below), and qualified improvement property (QIP). The asset must be new or used (bonus depreciation under OBBBA applies to both new and used assets, as long as it is new to the taxpayer).

Vehicle Depreciation Limits

Passenger vehicles under 6,000 lbs are subject to "luxury auto" limits even with bonus depreciation. The first-year limit is approximately $20,200 with bonus depreciation. Vehicles over 6,000 lbs GVWR (most full-size SUVs and pickup trucks) are not subject to luxury auto limits and can take full bonus depreciation on the entire purchase price.

Strategic Timing for 2026

With 100% expensing now permanent, there is less urgency to accelerate purchases (unlike prior years when the percentage was declining). However, businesses with high 2026 income should still consider timing equipment purchases to maximize the deduction in their highest-income year. The deduction is most valuable when it offsets income taxed at your highest marginal rate.

⚡ CalcWolf Insight

The OBBBA making bonus depreciation permanent is estimated to reduce corporate taxes by $129 billion in 2026 alone. For small businesses, the math is straightforward: every dollar spent on qualifying equipment reduces your tax bill by your marginal rate (22-37 cents for individuals, 21 cents for C-corps).

Frequently asked questions
Is bonus depreciation permanent now?
Yes. The OBBBA made 100% bonus depreciation permanent for qualifying assets. The TCJA phase-down (100% → 80% → 60% → 40% → 20%) was reversed. Businesses no longer need to rush purchases before the percentage drops.
Does bonus depreciation apply to used equipment?
Yes. Under the OBBBA (continuing the TCJA provision), bonus depreciation applies to both new and used assets, as long as the asset is new to the taxpayer (first time you are using it in your business). This was a change from pre-TCJA rules that limited bonus depreciation to new assets only.
Can I take bonus depreciation and Section 179?
You can use Section 179 up to the limit ($1.25 million for 2026), then apply bonus depreciation to any remaining cost. For most businesses, bonus depreciation alone handles the full deduction. Section 179 has advantages for certain state tax purposes since some states conform to 179 but not bonus depreciation.
How does the SUV/truck loophole work?
Vehicles over 6,000 lbs GVWR (Gross Vehicle Weight Rating) are exempt from the luxury auto depreciation limits. This means a $70,000 Ford F-150 or Chevy Suburban used 100% for business can be fully deducted in year one. Vehicles under 6,000 lbs are capped at approximately $20,200 in year one.
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Kevin Glover
Founder, CalcWolf · GLVTS · Blickr
All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →
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