Bonus Depreciation Tax Planning

Bonus depreciation is a tax incentive that allows businesses to immediately deduct a large percentage of the cost of qualifying assets in the year they are placed in service, rather than depreciating the cost over the asset's useful life under standard MACRS schedules. This accelerated deduction significantly reduces taxable income in the year of acquisition, improving cash flow and potentially creating tax losses that can be carried forward. Qualifying property typically includes tangible personal property, qualified improvement property, and certain film and television productions. The Tax Cuts and Jobs Act of 2017 expanded bonus depreciation to 100% for qualifying assets placed in service after September 27, 2017, with a phased reduction beginning in 2023. Effective tax planning around bonus depreciation involves timing major capital expenditures strategically, analyzing whether maximizing the deduction in the current year is beneficial given projected future income, and evaluating interactions with Section 179 expensing and other tax provisions. Businesses should work with their tax advisors to optimize the interplay between bonus depreciation elections and overall tax strategy.

Qualifying property for bonus depreciation generally includes tangible personal property with a recovery period of 20 years or less under MACRS, certain computer software, qualified film and television productions, and qualified improvement property (QIP)—which covers improvements to the interior of nonresidential real property. The CARES Act of 2020 corrected a technical error from the TCJA, retroactively allowing QIP a 15-year recovery period and making it eligible for bonus depreciation. Used property became eligible for bonus depreciation under the TCJA for the first time, provided the taxpayer or a predecessor had not previously used or claimed the property, and it was not acquired from related parties. Notably, several categories are specifically excluded: property used in certain utility and transportation businesses subject to regulated cost-of-service rate oversight, and property used predominantly outside the United States. Structures and their components generally do not qualify unless they fall within the QIP category or meet specific exceptions. Detailed asset classification review by a qualified tax professional is essential to ensure correct application.

The 100% bonus depreciation rate established by the Tax Cuts and Jobs Act of 2017 began phasing down after December 31, 2022. The phase-down schedule reduces the bonus depreciation percentage by 20 percentage points each year: 80% for assets placed in service in 2023, 60% in 2024, 40% in 2025, 20% in 2026, and 0% for assets placed in service after December 31, 2026—unless Congress acts to extend or restore the provision. This phase-down has significant tax planning implications for businesses with capital-intensive operations. Companies should evaluate the timing of major equipment purchases and capital improvements to maximize available bonus depreciation deductions before the percentage decreases further. Businesses should model the tax impact of accelerating or deferring purchases under the remaining phase-down percentages compared to projections of future tax rates and taxable income. Tax legislation remains a possibility that could alter or extend these provisions, making ongoing monitoring of legislative developments an important part of proactive tax planning strategy.

Bonus depreciation and Section 179 expensing both allow accelerated deductions for qualifying assets, but they operate under different rules and serve different planning purposes. Section 179 allows businesses to expense up to a statutory dollar limit (indexed annually for inflation) of qualifying property costs in the year placed in service; however, the deduction is limited to the taxpayer's taxable income from active business activity—it cannot create a tax loss. Bonus depreciation has no dollar cap and can create or increase a net operating loss, which may then be carried forward. Section 179 applies only to property used more than 50% for business, while bonus depreciation has a lower business use threshold. Section 179 is available to both large and small businesses but reaches its full benefit most efficiently for smaller acquisitions; bonus depreciation applies at a percentage rate that scales with the asset's cost. Strategic tax planning typically involves applying Section 179 first to targeted assets where the income limitation is not an issue, then applying bonus depreciation to the remaining cost basis. The optimal combination depends on current and projected taxable income, business structure, and state tax conformity to federal provisions.

Federal bonus depreciation deductions do not automatically flow through to state tax returns in many jurisdictions, creating an important complication for businesses operating in multiple states. Several states, including California, New Jersey, and New York, do not conform to federal bonus depreciation provisions and require taxpayers to add back the federal bonus deduction and then depreciate the asset under the state's own schedule. This creates a temporary difference between federal and state taxable income that can result in higher state income tax liability in the year of asset acquisition, partially offsetting the federal benefit. Other states fully conform to federal bonus depreciation rules, while some conform with modifications. Businesses must track depreciation on a state-by-state basis where applicable, adding complexity to tax compliance. Effective bonus depreciation planning requires analyzing both the federal and state tax impact of a proposed purchase, particularly for capital-intensive businesses operating across state lines. Working with a tax professional experienced in multi-state taxation ensures the full net benefit is accurately modeled before significant capital expenditures are made.