July 11, 2025
Cost Segregation for Landlords: How It Works & Who Should Consider It
Why OB3 Changes Your Tax Planning in 2025 and Beyond
With the passage of the One Big Beautiful Bill Act (OB3), 100% bonus depreciation is back on the table for certain rental property components. This change keeps cost segregation highly relevant for landlords focused on maximizing deductions and long-term planning.
At Fortitude Tax & Accounting, we help landlords understand how these changes impact common tax strategies like cost segregation so they can make smarter decisions and avoid costly mistakes.
If you’re asking whether cost segregation is still worth it, here’s what you need to know.
What Is Cost Segregation?
Cost segregation is a tax strategy that accelerates depreciation by breaking your rental property into components with shorter useful lives. Instead of depreciating everything over 27.5 years (for residential rentals), a cost segregation study identifies assets like:
- 5-year property (appliances, fixtures, furniture)
- 7-year property (equipment)
- 15-year property (land improvements: sidewalks, parking lots, fencing)
These shorter-life assets are depreciated more quickly, giving you bigger deductions upfront.
How Cost Segregation Benefits Landlords
- Immediate tax savings: Front-loads deductions to reduce taxable income in early years.
- Improved cash flow: Lower taxable income today can free up cash for reinvestment.
- Offsets other income (for RE Pros): If you qualify as a Real Estate Professional (RE Pro), accelerated losses can offset active income.
- Prepares for future sales: Identifying components early helps minimize surprises on gain calculations later.
Who Should Consider Cost Segregation?
Best fit for:
- Landlords with new purchases, renovations, or builds typically over $500K.
- Owners planning to hold properties long-term (7+ years).
- Investors looking to front-load deductions for cash flow, refinancing, or reinvestment.
- RE Pros who can offset W-2 or business income with real estate losses.
Less ideal if:
- You plan to sell quickly (recapture rules can limit benefits).
- You own only a small property with minimal improvements.
How OB3 Changes the Strategy
100% Bonus Depreciation Reinstated
Under OB3, 100% bonus depreciation is reinstated for qualified property (with a class life of 20 years or less) placed in service on or after January 20, 2025. This includes the types of short-life property typically identified through cost segregation:
- 5-year property (appliances, fixtures, furniture)
- 7-year property (certain equipment)
- 15-year property (land improvements)
Buildings (27.5-year and 39-year property) remain excluded.
What this means going forward:
- You can fully deduct qualifying short-life assets in the year placed in service (100% bonus).
- Cost segregation remains a key strategy to accelerate depreciation and capture these deductions.
- There is no longer a phase-down schedule under OB3. Qualifying assets placed in service after January 20, 2025, are eligible for 100% bonus depreciation.
OB3 ensures that cost segregation remains one of the most effective tools for accelerating deductions on short-life assets within rental properties. Timing your acquisitions and improvements to align with these updated rules can significantly improve cash flow and long-term tax efficiency.
QBI Deduction Extended
The 20% Qualified Business Income (QBI) deduction is now permanent under OB3. This pairs well with cost segregation because accelerated deductions reduce QBI-eligible income, giving landlords more flexibility in their annual tax strategy.
When Cost Segregation Is Most Valuable in 2025 and Beyond
- When strategically timing improvements or acquisitions to fully capture 100% bonus depreciation benefits.
- For long-term holders planning to grow their portfolios.
- For RE Pros leveraging losses to offset active income.
- For landlords offsetting gains from other transactions.
What Cost Segregation Won’t Do
- It won’t make your building depreciate faster—only components under 20 years.
- It won’t eliminate taxes—it shifts the timing of deductions.
- It won’t help if you don’t qualify to use losses (passive activity rules still apply).
How Fortitude Helps You Get It Right
At Fortitude Tax & Accounting, we help landlords:
- Evaluate if cost segregation fits your property, goals, and timeline.
- Coordinate trusted cost segregation studies.
- Optimize depreciation strategies (bonus, safe harbors, QBI).
- Build tax strategies aligned with OB3 and your future plans.
Not sure if cost segregation is right for you? Let’s talk.
At Fortitude, we’ll help you make sense of the numbers, the timing, and the strategy—so you can maximize your deductions with confidence.
👉 Schedule a consultation today and get clarity on your next steps.
Related Articles in This Series:
- 2025 Tax Law Changes: What They Mean for Your Rental Property
- Repairs vs. Improvements: How Landlords Can Maximize Deductions in 2025
- Active vs. Passive Rental Income: How It Impacts Your Taxes (and Your Deductions)
Frequently Asked Questions
How does cost segregation work?
A specialist identifies short-life assets within your property so you can depreciate them faster, reducing taxable income sooner.
Is cost segregation still worth it with 100% bonus depreciation restored?
Yes. With 100% bonus depreciation reinstated for short-life assets after January 20, 2025, cost segregation remains a valuable strategy to accelerate deductions and improve cash flow.
Does this apply to my building?
No. Buildings stay on 27.5-year schedules. Only shorter-life assets are affected.
Can I use this if I’m a passive landlord?
Yes, but if you’re a passive investor, these deductions typically can only offset other passive income—not W-2 wages or business income—unless you qualify as a Real Estate Professional.
Can Fortitude help coordinate this?
Absolutely. We work with trusted specialists and integrate these strategies into your broader tax planning.
Fortitude Tax & Accounting, located in Stansbury Park, Utah, just outside the Greater Salt Lake City area, specializes in proactive tax savings and accounting services tailored for therapists, real estate professionals, and small business owners. Led by Melissa Calwell, CPA, EA, with over 30 years of hands-on experience in both the private sector and public accounting, our firm offers comprehensive services including tax planning, tax preparation, bookkeeping, payroll, and tax strategies designed to maximize your savings. Choosing Fortitude Tax & Accounting means partnering with a firm committed to helping you achieve financial success through expert guidance and personalized service. Contact us today to learn how we can work together to optimize your financial future.
Fortitude Tax & Accounting has provided this article for informational purposes only and does not constitute legal, business, or tax advice. Each person should consult their own attorney, business advisor, or tax advisor with respect to matters referenced in this post and their personal situation
