Commercial painting and coating projects are significant capital and maintenance expenditures. What many facility owners overlook is that these projects often qualify for meaningful tax benefits that can reduce the effective cost by 20 to 40 percent or more, depending on the nature of the work and the tax strategy applied.

Understanding the available deductions, depreciation methods, and incentive programs before the project begins allows owners to structure the work and documentation to capture every available benefit. This overview covers the primary tax advantages applicable to commercial coating projects in 2025.

Note: Tax law is complex and situation-specific. This article provides general guidance on common strategies. Always consult a qualified tax professional for advice tailored to your specific circumstances.

Maintenance Expense vs. Capital Improvement

The single most important tax distinction for a commercial painting project is whether the work qualifies as a deductible maintenance expense or must be capitalized as a building improvement.

Deductible Maintenance Expenses

Painting and coating work that maintains the building in its current condition is generally deductible as an ordinary business expense in the year the cost is incurred. This includes:

  • Repainting interior or exterior surfaces in the same or similar color and finish to maintain appearance and protect the substrate
  • Recoating floors, walls, and structural steel with the same type of coating system to restore protective performance
  • Routine maintenance recoating of roofing systems, parking structures, and equipment
  • Touch-up and repair painting to address localized failure, wear, or damage

The key test is whether the work restores the property to its current condition rather than improving it beyond its original state. A full interior repaint that refreshes worn surfaces is maintenance. The same repaint as part of a gut renovation that also reconfigures the space is more likely to be classified as part of a capital improvement.

Capitalized Improvements

Work that improves the building beyond its current condition, adapts it to a new use, or restores it from a state of disrepair must generally be capitalized and depreciated over the applicable recovery period:

  • Painting as part of a building renovation that changes the use or character of the space
  • Specialty coating systems that add new functionality (antimicrobial coatings in a healthcare conversion, chemical-resistant coatings for a new manufacturing process)
  • Structural steel painting as part of a structural repair or reinforcement project

The IRS tangible property regulations (the “repair regulations” under Treas. Reg. 1.263(a)-3) provide detailed guidance on the distinction between maintenance and improvement. The regulations use a “unit of property” framework and apply betterment, restoration, and adaptation tests to determine whether an expenditure must be capitalized.

Depreciation Strategies for Capital Improvements

When painting and coating work is properly classified as a capital improvement, several depreciation strategies can accelerate the tax benefit.

Standard Depreciation

Commercial building improvements are generally depreciated over 39 years (nonresidential real property) or 27.5 years (residential rental property) using the straight-line method. This provides a modest annual deduction but spreads the benefit over decades.

Section 179 Deduction

Section 179 allows businesses to deduct the full cost of qualifying property in the year it is placed in service, rather than depreciating it over time. For 2025:

  • The Section 179 deduction limit is $1,250,000 (subject to annual adjustment for inflation)
  • Qualifying improvements to nonresidential real property include roofing, HVAC, fire protection, alarm systems, and security systems installed in existing buildings
  • Interior improvements to nonresidential real property may qualify if the building was placed in service more than three years before the improvement

Coating systems that are part of a qualifying improvement category (for example, a protective roof coating applied as part of a roofing project) may be eligible for Section 179 treatment. The determination depends on the nature of the overall project and the coating’s role within it.

Bonus Depreciation

Bonus depreciation allows an additional first-year depreciation deduction for qualifying property. The bonus depreciation percentage has been phasing down:

  • 2025: 40 percent bonus depreciation (down from 60 percent in 2024)
  • 2026: 20 percent bonus depreciation
  • 2027 and beyond: 0 percent under current law (absent legislative extension)

Qualifying property includes certain building improvements placed in service after September 27, 2017. The phase-down schedule makes 2025 a better year than future years to complete qualifying improvements and capture the 40 percent first-year bonus.

Cost Segregation Studies

A cost segregation study analyzes a building or improvement project and reclassifies components into shorter depreciation categories. Painting and coating costs that are part of a larger construction or renovation project can sometimes be reclassified from 39-year property to 15-year, 7-year, or 5-year property depending on their function and the nature of the asset they protect.

For example, coating on manufacturing equipment or specialized process piping may qualify as 7-year property rather than 39-year building improvement property. A cost segregation study by a qualified engineering firm identifies these reclassification opportunities and provides the documentation needed to support the accelerated depreciation on a tax return.

Energy Efficiency Incentives

Coating projects that improve building energy performance may qualify for additional federal and state incentives.

Section 179D Energy Efficient Commercial Building Deduction

Section 179D provides a tax deduction for energy-efficient improvements to commercial buildings. The Inflation Reduction Act significantly expanded this deduction starting in 2023:

  • Base deduction: Up to $0.50 per square foot for improvements that achieve a 25 percent reduction in energy costs compared to a reference standard
  • Enhanced deduction: Up to $5.00 per square foot for projects that meet prevailing wage and apprenticeship requirements
  • Qualifying envelope improvements: Cool roof coatings, reflective wall coatings, and insulation systems (including spray foam) that measurably reduce building energy consumption can contribute to the 179D deduction
  • Partial qualification: Even if the coating project alone does not achieve the 25 percent threshold, it can be combined with other envelope, HVAC, or lighting improvements to reach the qualifying level

The 179D deduction is particularly relevant for cool roof coating projects, reflective exterior coating applications, and spray foam insulation installations that demonstrably reduce heating or cooling energy consumption.

State and Utility Incentives

Many states and utility companies offer additional incentives for energy-efficient building improvements:

  • Utility rebates for cool roof installations: Some utilities in cooling-dominated climates offer per-square-foot rebates for qualifying reflective roof coatings
  • State tax credits: Several states offer tax credits for commercial energy efficiency improvements that parallel or supplement the federal 179D deduction
  • Green building certification incentives: Some jurisdictions offer tax abatements, expedited permitting, or other benefits for buildings that achieve LEED, Energy Star, or equivalent green building certifications. Energy-efficient coating systems contribute to the points needed for certification.

Research the specific incentives available in your state and utility service territory before finalizing the project scope. In some cases, adjusting the coating specification to meet a specific performance threshold unlocks incentive value that exceeds the incremental product cost.

Documentation Best Practices

Capturing tax benefits requires documentation that supports the claimed deductions. Establishing good documentation practices before the project begins ensures that nothing is missed.

Project Classification Documentation

  • Maintain a written description of the project scope that clearly identifies whether the work is maintenance or improvement
  • For maintenance expense treatment, document the condition of the surfaces before painting and the fact that the work is restoring them to their prior condition
  • For improvement treatment, identify the specific improvement category and the applicable depreciation method

Cost Documentation

  • Obtain itemized invoices from the painting contractor that separate labor and materials, and that identify the specific areas and surfaces coated
  • For projects that include both deductible maintenance and capitalized improvement components, ensure the costs are properly allocated in the contractor’s invoicing
  • Retain paint specifications, product data sheets, and scope documents that support the nature and purpose of the work

Energy Efficiency Documentation

  • For 179D deductions, obtain an energy modeling study from a qualified professional demonstrating that the improvement meets the applicable energy reduction threshold
  • For utility rebates, follow the specific application and documentation requirements of the rebate program, including pre-approval if required
  • Retain cool roof coating reflectivity and emissivity test data (initial and aged values) for coatings claimed under energy efficiency programs

Timing Considerations for 2025

Several factors make 2025 a favorable year to complete commercial coating projects from a tax perspective:

  • Bonus depreciation at 40 percent: This drops to 20 percent in 2026. Capital improvements completed in 2025 capture a higher first-year deduction.
  • Section 179 limits remain high: The $1,250,000 deduction limit provides ample room for most commercial coating projects.
  • 179D deduction availability: The expanded commercial building energy efficiency deduction is fully available for qualifying projects completed in 2025.
  • Legislative uncertainty: Future tax law changes could reduce or eliminate some of these benefits. Completing projects under current law provides certainty.

Facility owners who are planning painting or coating projects for the near term should evaluate whether accelerating the timeline to complete the work in 2025 captures tax benefits that would be reduced or unavailable in later years. The tax savings alone can sometimes justify advancing a project by several months.

Working with Your Tax Advisor

The most effective approach is to involve your tax advisor early in the project planning process, before the scope is finalized and contracts are signed. A tax-aware project structure might include:

  • Separating maintenance painting from improvement painting into distinct contracts or line items to simplify expense vs. capitalization classification
  • Specifying cool roof or energy-efficient coating products that qualify for 179D or utility incentives
  • Timing project completion to maximize first-year deductions under current bonus depreciation rates
  • Commissioning a cost segregation study for larger projects to identify accelerated depreciation opportunities

The incremental effort to plan the project with tax implications in mind is modest. The financial benefit can be substantial.