Leasehold improvements can be a significant investment for commercial property tenants and owners. However, many businesses fail to take full advantage of the tax benefits available for these improvements. By strategically planning and categorizing leasehold improvements, businesses can optimize tax savings and enhance cash flow.
What are Leasehold Improvements
Leasehold improvements refer to modifications made to a leased property to meet the specific needs of the tenant. These can include:
- Installing new flooring, lighting, or HVAC systems
- Adding partitions, walls, or ceilings
- Upgrading plumbing or electrical systems
- Enhancing security or accessibility features
Because these improvements often involve substantial costs, it is crucial to understand how they are treated for tax purposes and how to maximize available deductions.
Depreciation and Leasehold Improvements
The IRS categorizes leasehold improvements as property assets that must be depreciated over time. However, tax laws, such as the Tax Cuts and Jobs Act (TCJA) and bonus depreciation rules, offer accelerated depreciation options that can provide substantial tax savings. Key considerations include:
Bonus Depreciation
- The TCJA allows for 100% bonus depreciation on qualifying leasehold improvements, meaning businesses can deduct the entire cost in the year the improvement is placed into service from 2018-2022. If you missed applying bonus depreciation, you are able to do this retroactively.
- This benefit is scheduled to phase out by 20% annually, so it’s important to act while full deductions are still available.
Section 179 Deduction
- Businesses may elect to expense up to $1.16 million (as of 2024) in qualifying property improvements under Section 179.
- Eligible improvements include HVAC systems, security systems, fire alarms, and roofing upgrades.
Qualified Improvement Property (QIP)
- The IRS defines QIP as interior, non-structural improvements to nonresidential buildings after they are first placed in service.
- QIP is eligible for 15-year depreciation (instead of 39 years) and qualifies for bonus depreciation and Section 179 Expense.

Strategies to Maximize Tax Savings
- Classify Improvements Correctly
- Work with tax professionals to ensure leasehold improvements are classified as QIP or other eligible categories to maximize depreciation benefits.
- Leverage Cost Segregation Studies
- A cost segregation study identifies components of leasehold improvements that can be reclassified for accelerated depreciation.
- Items such as lighting, flooring, and specialty equipment may qualify for shorter depreciation lives (5, 7, or 15 years) instead of 39 years.
- Time Improvements Strategically
- Place improvements in service before phase-out deadlines in order to claim bonus depreciation.
- Consider making improvements before year-end to secure current-year deductions.
- Negotiate Lease Agreements
- Landlords and tenants should discuss tax responsibility for improvements.
- Tenants should ensure lease terms allow for tax-efficient investments, such as specifying that improvements remain on their property.
- Utilize Energy-Efficient Tax Incentives
- The Section 179D deduction provides tax benefits for energy-efficient HVAC, lighting, and building envelope upgrades.
- Consider state and local incentives for sustainability-focused improvements.
Conclusion
Properly optimizing leasehold improvements can significantly reduce tax liability and improve cash flow. By leveraging bonus depreciation, Section 179, QIP classifications, and cost segregation studies, businesses can maximize their tax benefits. Consulting with tax professionals ensures compliance and enhances savings opportunities.
Taking a strategic approach to leasehold improvements not only enhances the functionality of a commercial space but also results in substantial financial advantages. Contact us at CSSI today to optimize your tax saving strategies.