100% Bonus Depreciation is Back: What Changed?

  • By William Wightman
    • Aug 08, 2025
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100% bonus depreciation

Understanding the Powerful Tax Tool for Accelerated Deductions – Now Back at 100%

Bonus depreciation allows businesses to immediately deduct a significant portion of the cost of qualified property in the year it’s placed in service instead of depreciating it over many years. This strategic tax incentive encourages investment by front-loading deductions and improving cash flow.

With the recent passage of the One Big Beautiful Bill (OBBB), 100% bonus depreciation is officially back and is a major win for real estate investors, business owners, and anyone placing qualified assets into service in 2025 and beyond.

What Is Bonus Depreciation?

Bonus depreciation is a provision in the tax code that allows taxpayers to write off a large percentage of the cost of eligible property in the same year of placing the asset in service.

Previously, bonus depreciation allowed:

  • 100% first-year deduction under the Tax Cuts and Jobs Act (TCJA) through 2022
  • A scheduled phase-down to 80% in 2023, 60% in 2024, and just 40% in 2025

However, thanks to the OBBB, bonus depreciation has been fully restored to 100% for assets placed in service after January 19, 2025, with no phase-down in sight for now.

What Property Qualifies?

To qualify for bonus depreciation, property must generally:

  • Have a useful life of 20 years or less
  • Be new or used, as long as it’s new to you
  • Be placed in service in a qualifying tax year

Examples include:

  • Machinery and equipment
  • Technology, computers, and software
  • Furniture and fixtures
  • Certain leasehold improvements and building components identified through cost segregation studies
  • Qualified improvement property (QIP)

For real estate owners, cost segregation studies play a critical role.

By breaking down a building into individual components (like flooring, lighting, and cabinetry), large portions of a building can be reclassified into 5-, 7-, or 15-year property.

Making them fully deductible in Year 1 thanks to bonus depreciation.

Benefits of 100% Bonus Depreciation

The return to 100% bonus depreciation opens the door to significant tax savings:

  • Immediate cash flow relief from large first-year deductions
  • Reduced taxable income (especially helpful in high-income years)
  • Better ROI on real estate investments
  • Increased financial flexibility to reinvest in business growth

Example:

A business purchases $150,000 worth of qualifying equipment in 2025. Without bonus depreciation, it would take years to recover those costs through standard depreciation.

With 100% bonus depreciation:

  • The full $150,000 can be deducted in 2025.
  • At a 30% tax rate, that’s a $45,000 reduction in tax liability just in year one.

With 100% Bonus Depreciation Back, What’s Next?

Now is the time to revisit your capital investment strategy and tax planning. Whether you’re:

  • A business planning major equipment purchases
  • A real estate investor acquiring or renovating properties
  • A CPA advising clients in high-income brackets

100% bonus depreciation can change the math on your tax liability dramatically.

If you own a rental or commercial building, a cost segregation study can unlock 20–30% of your building’s value in Year 1 deductions thanks to this powerful tax provision.

Final Thoughts

With the passing of the One Big Beautiful Bill, 100% bonus depreciation is officially back, restoring one of the most powerful tax-saving tools available to businesses and real estate investors.

For property owners, it’s an opportunity to front-load tens or even hundreds of thousands of dollars in deductions that were previously spread out over decades.

But here’s the key: bonus depreciation only works if you’ve identified the assets that qualify.

That’s where cost segregation comes in. A professional cost seg study breaks down your building into components like flooring, electrical, cabinets, and site improvements by reclassifying them from 27.5 or 39 years to 5, 7, or 15 years.

With bonus back at 100%, every one of those reclassified assets becomes fully deductible in the very first year.

In many cases, that means:

  • 20–30% of your building’s cost becomes an immediate deduction
  • 5–6 figure reductions in your tax liability
  • Massive cash flow advantages that can be reinvested

Bonus depreciation is the tool, but cost segregation is the unlock.

If you own a rental or commercial property and want to maximize your tax savings, a cost segregation study isn’t just smart, it’s essential.

Reach out today to see how much you could save. The clock is ticking in 2025, and proactive tax planning starts now.

Author

William Wightman
William Wightman

Senior Cost Segregation Consultant

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