{"id":4589,"date":"2026-04-10T20:36:31","date_gmt":"2026-04-10T20:36:31","guid":{"rendered":"https:\/\/getirshelp.com\/blog\/?p=4589"},"modified":"2026-05-01T01:54:19","modified_gmt":"2026-05-01T01:54:19","slug":"section-179-vs-bonus-depreciation-obbba-2025-2026","status":"publish","type":"post","link":"https:\/\/getirshelp.com\/blog\/section-179-vs-bonus-depreciation-obbba-2025-2026\/","title":{"rendered":"Section 179 or Bonus Depreciation: Which Is Best for Your Business After the OBBBA?"},"content":{"rendered":"

I’m Darrin Mish. Tampa tax attorney, 32 years in, more than $100 million in IRS debt resolved.<\/strong> What follows isn’t theory – it’s what I’ve actually watched work.<\/p>\n\n

If you bought equipment, vehicles, or made leasehold improvements for your business this year, you are sitting on what might be the biggest first-year tax deduction in recent memory. The One Big Beautiful Bill Act, signed on July 4, 2025, permanently restored 100% bonus depreciation and dramatically expanded Section 179 limits.<\/p>

But choosing between the two is not as simple as picking the bigger number. They work differently, have different limitations, and in many cases, using one instead of the other could cost you thousands of dollars. Or save you thousands – if you know what you are doing.<\/p>

What the OBBBA Actually Changed<\/h2>

Before the OBBBA, bonus depreciation was on a death march. Under the TCJA phase-down schedule, it dropped from 100% in 2022 to 80% in 2023, 60% in 2024, 40% in 2025, and was headed to zero by 2027. Many business owners had already started adjusting their equipment purchase timing and financing strategies to account for the shrinking deduction.<\/p>

The OBBBA reversed all of that. Permanently. For property acquired and placed in service after January 19, 2025, bonus depreciation is back to 100%. Not temporarily. Permanently. There is no sunset clause, no phase-down, no expiration date. This is a fundamental shift in how businesses can plan their capital expenditures.<\/p>

On the Section 179 side, the OBBBA increased the maximum deduction from $1.25 million to $2.5 million for 2025, with a phase-out threshold starting at $4 million (up from $3.13 million). These limits will continue to adjust for inflation, hitting approximately $2.56 million and $4.09 million in 2026.<\/p>

Combined, these two provisions mean that most businesses can now deduct the full cost of qualifying assets<\/a> in the year they are placed in service. But how you structure that deduction matters more than most people realize.<\/p>

The Critical Timing Issue for 2025<\/h2>

Here is something that will trip up a lot of people this year. The OBBBA’s 100% bonus depreciation applies to property acquired after January 19, 2025. Not January 1 of 2025. January 19.<\/p>

If your business entered into a binding written contract to acquire property between January 1 and January 19, 2025, that property only qualifies for 40% bonus depreciation under the old TCJA phase-down schedule. That is a massive difference for the same calendar year.<\/p>

For a $500,000 equipment purchase, the gap between 40% bonus ($200,000 deduction) and 100% bonus ($500,000 deduction) is $300,000 in first-year deductions. At a 37% tax rate, that is $111,000 in additional taxes – because of a 19-day window in January.<\/p>

If you are in this situation, Section 179 can help bridge the gap. You can claim up to $2.5 million under Section 179 first, then apply the 40% bonus depreciation to any remaining balance. This can often get you very close to a full first-year deduction even for pre-January 20 acquisitions.<\/p>

Section 179 vs. Bonus Depreciation: The Key Differences<\/h2>

Both provisions let you deduct the cost of qualifying assets in year one. But the mechanics are different in ways that directly affect your tax planning and bottom line.<\/p>

Dollar limits.<\/strong> Section 179 caps your deduction at $2.5 million for 2025. Bonus depreciation has no dollar limit whatsoever. If you buy $10 million in qualifying equipment, bonus depreciation covers all of it. Section 179 only covers the first $2.5 million.<\/p>

Income limitation.<\/strong> This is the biggest practical difference between the two. Section 179 is limited to the taxable income of your business. If your business has $200,000 in taxable income before the Section 179 deduction, you can only deduct $200,000 under Section 179 in that year – the excess carries forward to future years. Bonus depreciation has no income limitation at all. It can create or increase a net operating loss (NOL), which can then be carried forward.<\/p>

Election flexibility.<\/strong> Section 179 is an affirmative election – you choose to take it, and you can choose to take less than the full amount available. This gives you precise control over how much deduction you recognize in a given year. Bonus depreciation is automatic unless you affirmatively elect out on your tax return. You can elect out entirely or choose a reduced percentage, but you cannot choose a specific dollar amount like you can with Section 179.<\/p>

Phase-out threshold.<\/strong> Section 179 has a phase-out. If your total qualifying property purchases exceed $4 million in 2025, the Section 179 deduction starts to shrink dollar for dollar. At $6.5 million in purchases, it disappears entirely. Bonus depreciation has no phase-out at any level of purchases.<\/p>

Property types.<\/strong> Both apply to tangible personal property with recovery periods of 20 years or less. But bonus depreciation also applies to Qualified Improvement Property (QIP) and has slightly broader applicability for used property in many cases.<\/p>

Qualified Improvement Property: A Major Win<\/h2>

One of the most significant changes under the OBBBA for many businesses is the treatment of Qualified Improvement Property. QIP includes most interior improvements to nonresidential buildings – things like new flooring, lighting systems, HVAC upgrades, interior walls and partitions, and electrical and plumbing improvements.<\/p>

QIP has a 15-year recovery period. Under the OBBBA, QIP placed in service after January 19, 2025 now qualifies for 100% bonus depreciation. This is a massive change for retail businesses, restaurants, medical practices, dental offices, law firms, and anyone leasing or renovating commercial space.<\/p>

Previously, the bonus depreciation phase-down meant you could only deduct 40% of QIP costs in the first year for 2025 acquisitions. Now it is 100%. A $500,000 restaurant renovation that would have produced a $200,000 first-year deduction now produces a $500,000 first-year deduction. That $300,000 difference at a 37% rate saves $111,000 in taxes in year one.<\/p>

When to Choose Section 179<\/h2>

Despite the unlimited nature of bonus depreciation, there are several scenarios where Section 179 is actually the better strategic choic<\/a>e.<\/p>

When you want to control your deduction amount.<\/strong> If you do not want to take the full deduction this year – maybe your income is lower than expected and you would rather save deduction capacity for a higher-income year – Section 179 lets you pick the exact amount. You cannot do that with bonus depreciation without electing out entirely or choosing a reduced flat percentage.<\/p>

When you want to avoid creating an NOL.<\/strong> Net operating losses can be carried forward under current law, but they are subject to an 80% taxable income limitation in the years you use them. If you would rather take a controlled deduction this year and keep next year’s income fully available without NOL complications, Section 179’s income limitation actually works in your favor as a natural guardrail.<\/p>

For the January 1-19 acquisition gap.<\/strong> If you acquired property before January 20, 2025, Section 179 at $2.5 million is a much better first-year deduction than 40% bonus depreciation on the same property.<\/p>

When you want certainty on the current year’s return.<\/strong> Section 179 deductions are taken in the year the property is placed in service. There is no risk of recapture if the property’s use changes within the current year, because you elected a specific amount.<\/p>

When to Choose Bonus Depreciation<\/h2>

When purchases exceed $2.5 million.<\/strong> Section 179 caps out at $2.5 million. Bonus depreciation has no cap. For large capital expenditures, bonus depreciation is the only way to deduct the full cost in year one.<\/p>

When you want to create or increase an NOL.<\/strong> If you have a strategy for carrying forward NOLs – maybe you expect a very high-income year in the future, or you are building a multi-year tax strategy – bonus depreciation’s ability to create losses is a feature, not a limitation.<\/p>

When your business income is low or negative.<\/strong> Section 179 cannot exceed taxable income in the current year. If your business is in a loss position or has very low income this year, bonus depreciation still works because it has no income limitation.<\/p>

For used property.<\/strong> Bonus depreciation applies to both new and used property that is new to the taxpayer (with some exceptions for related party transactions). This broadens its applicability significantly.<\/p>

The Combined Strategy<\/h2>

In many real-world situations, the best approach uses both provisions strategically together. Here is how that can look.<\/p>

A construction company acquires $3 million in equipment on February 1, 2025 (after the OBBBA cutoff date). They also spend $800,000 on QIP for their office and warehouse renovation.<\/p>

Strategy: Claim $2.5 million under Section 179 on the equipment (using the election flexibility to control how much current-year deduction to take). Apply 100% bonus depreciation to the remaining $500,000 of equipment and the full $800,000 of QIP. Total first-year deduction available: $3.8 million.<\/p>

Why use both? Because the Section 179 portion gives the company flexibility to carry forward unused deductions if current-year income is insufficient (remember the income limitation), while bonus depreciation handles the rest without any dollar cap. The combination maximizes flexibility while ensuring nothing is left on the table.<\/p>

Do Not Forget About Vehicle Limitations<\/h2>

One area where the rules get complicated fast is passenger vehicles. The luxury auto limits under IRC Section 280F cap your first-year depreciation deduction for passenger vehicles used in business. For 2025, the first-year limit is $20,400 with bonus depreciation for vehicles placed in service after January 19, 2025.<\/p>

However, vehicles over 6,000 pounds GVWR (gross vehicle weight rating) – like full-size SUVs, pickup trucks, and cargo vans – are exempt from the luxury auto limits. Section 179 limits the deduction for heavy SUVs specifically to $31,300 for 2025, but bonus depreciation on a heavy vehicle has no such cap. A $85,000 heavy SUV used 100% for business could generate the full $85,000 as a first-year deduction using bonus depreciation alone.<\/p>

This is one of the most popular tax planning strategies for business owners, and the OBBBA’s restoration of 100% bonus makes it even more powerful. But remember: the vehicle must be used primarily for business, and the deduction must be reasonable relative to the business use percentage.<\/p>

Get Help Now<\/h2>

Choosing between Section 179 and bonus depreciation is not a one-size-fits-all decision. Your business structure, income level, purchase timing, asset types, and long-term tax strategy all factor in. Get it right and you maximize your deductions for years to come. Get it wrong and you leave money on the table – or worse, create tax complications<\/a> you did not anticipate. Contact the Law Offices of Darrin T. Mish, P.A. at (813) 229-7100<\/a> for a free consultation.<\/p>\n\n\n