The 2025 tax overhaul brings long-awaited stability to capital investment, R&D, and deal structuring—paving the way for a golden era for U.S. manufacturers.
How the 2025 Tax Law Changes Could Impact Manufacturing and M&A
The American tax landscape was fundamentally reshaped with the enactment of the One Big Beautiful Bill Act (OBBBA) on July 4, 2025.
This landmark legislation introduces a series of pro-business reforms that are particularly significant for the manufacturing sector and the broader mergers and acquisitions (M&A) environment.
Manufacturers and companies considering strategic M&A activity should fully understand these new provisions so they can optimize financial strategies and take advantage of emerging opportunities in this changing economic climate.
A New Era for American Manufacturing
The OBBBA delivers several important provisions designed to stimulate investment, innovation and growth within the manufacturing sector.
Many of these changes address concerns businesses had under prior tax policy while offering greater stability and new incentives.
Permanent 100% Bonus Depreciation
This is a major win for capital-intensive industries like manufacturing.
Previously scheduled to phase down, the OBBBA permanently reinstates 100% bonus depreciation for qualified property acquired after January 19, 2025.
This allows businesses to immediately deduct the full cost of eligible assets, including machinery, equipment and certain qualified improvement property, in the year they are placed in service.
That accelerated tax benefit can significantly improve cash flow while directly encouraging new and expanded capital investment.
New Bonus Depreciation for Qualified Production Property
Going a step further, the OBBBA introduces a special 100% bonus depreciation provision for Qualified Production Property (QPP) through 2029.
QPP is broadly defined as nonresidential real property used in the manufacturing, production or refining of certain qualified products in the United States.
To qualify, construction must begin after January 19, 2025, and before January 1, 2029, with the property placed in service before January 1, 2031.
This is a powerful expansion of bonus depreciation because it can apply to new manufacturing facilities, creating a direct incentive for domestic industrial development and reshoring.
Immediate Expensing of Domestic R&D
The prior requirement to capitalize and amortize R&D expenses over several years had been a significant financial burden for many innovative businesses.
The OBBBA reverses that treatment and allows immediate deductibility of domestic R&D costs for tax years beginning after December 31, 2024.
This change is especially important for manufacturers involved in product innovation, process improvement and technological advancement because it can reduce taxable income and improve cash flow.
Taxpayers can also elect to accelerate deductions for remaining unamortized domestic R&D expenses from 2022 through 2024 over a one- or two-year period, with special retroactive rules intended to ease the transition for small businesses.
Higher Section 179 Expensing Limits
The Section 179 expensing limit has been increased to $2.5 million annually, up from $1 million, with the phaseout threshold increasing to $4 million from $2.5 million.
These changes are effective for tax years beginning after December 31, 2024, with inflation adjustments in future years.
For small and mid-sized manufacturers, this provides another way to immediately deduct qualifying equipment purchases and improve near-term cash flow.
A More Favorable Section 163(j) Interest Limitation
The calculation for the business interest limitation under Section 163(j) reverts to the original TCJA method, allowing businesses to calculate adjusted taxable income without subtracting depreciation, amortization or depletion.
In practical terms, this creates an EBITDA-like calculation and can increase the amount of deductible business interest.
That is particularly valuable for capital-intensive manufacturers that rely on debt financing for operations, expansion and M&A transactions.
How the New Tax Law Could Reshape M&A
The 2025 tax law is also likely to influence deal structure, valuations and buyer behavior.
For asset-heavy sectors like manufacturing, several provisions could have a meaningful impact.
Asset Acquisitions Become More Attractive
The permanent return of 100% bonus depreciation makes asset acquisitions significantly more attractive.
Buyers acquiring asset-heavy companies, particularly manufacturers with substantial machinery and equipment, may be able to accelerate depreciation deductions after the transaction.
That can improve near-term cash flow and overall deal returns.
In some situations, this could make asset purchases more attractive than stock purchases.
R&D-Intensive Companies May Become More Valuable
Immediate expensing of domestic R&D costs improves the economics of companies that spend heavily on innovation.
That could strengthen valuations and earnings forecasts for businesses in advanced manufacturing, biotechnology, software and other R&D-intensive sectors.
It may also contribute to increased buyer interest and more aggressive bidding for companies with strong innovation pipelines.
Expanded QSBS Benefits Could Encourage More Investment
The OBBBA also enhances the benefits of Qualified Small Business Stock under Section 1202.
For QSBS acquired after July 4, 2025, the new provisions include:
Tiered Gain Exclusion
The previous five-year requirement for a 100% gain exclusion is replaced with a more flexible system:
- 50% exclusion for QSBS held at least three years but less than four
- 75% exclusion for QSBS held at least four years but less than five
- 100% exclusion for QSBS held at least five years
This creates tax benefits even when liquidity events occur before the five-year mark.
Higher Gain Exclusion Cap
The maximum gain eligible for exclusion per taxpayer, per issuer, increases from $10 million to $15 million, with future inflation adjustments.
Expanded Gross Asset Test
The maximum aggregate gross assets a corporation may have immediately after issuing QSBS increases from $50 million to $75 million, also subject to inflation adjustments.
Together, these changes could make investing in and selling qualified small businesses more attractive and may encourage capital formation in emerging manufacturing companies.
Greater Certainty for Pass-Through Businesses
The 20% Qualified Business Income deduction under Section 199A has also been made permanent.
That is important for S corporations, partnerships and sole proprietorships, which are common structures among small and mid-sized manufacturers.
For M&A involving pass-through entities, this permanence provides greater certainty for long-term tax planning.
Debt Financing May Become More Attractive
The improved treatment of business interest under Section 163(j) may also make debt financing more appealing.
That could give buyers greater flexibility when structuring leveraged acquisitions and other debt-supported transactions.
Avoiding the Tax Cliff
Before the OBBBA, many major provisions from the Tax Cuts and Jobs Act of 2017 were scheduled to expire at the end of 2025.
That created uncertainty for individuals and businesses.
The OBBBA largely prevents that tax cliff by making or extending several provisions.
Individual Income Tax Rates
The current individual income tax rate schedules are made permanent beginning in 2026, largely preserving the lower TCJA rates.
Standard Deduction
The larger standard deduction created under the TCJA is made permanent.
The OBBBA also adds an additional $750 to the standard deduction for single taxpayers and $1,500 for married couples in 2025, with inflation adjustments thereafter.
A new $6,000 deduction per individual for taxpayers age 65 or older is also introduced through 2028.
SALT Deduction Cap
The state and local tax deduction cap increases from $10,000 to $40,000, with a 1% annual increase through 2029.
However, the cap is scheduled to revert to $10,000 in 2030.
Child Tax Credit
The Child Tax Credit increases by $200 to $2,200 for 2025, with inflation adjustments in future years.
Estate and Gift Tax Exemption
The lifetime exclusion amount for estates of decedents dying in 2025 increases to $13.99 million per individual, maintaining historically high exemption levels.
Strategic Planning for Manufacturers and Business Owners
While the 2025 tax law creates significant opportunities, businesses will still need thoughtful planning to take full advantage of them.
Revisit Capital Expenditure Plans
Manufacturers should reevaluate planned capital investments for 2025 and beyond.
Accelerating equipment purchases or facility investments may allow companies to take fuller advantage of 100% bonus depreciation and the Qualified Production Property provisions.
Reevaluate R&D Strategies
Companies with significant R&D expenditures should review both past spending from 2022 through 2024 and future R&D investments.
Immediate expensing and catch-up deductions may create meaningful tax savings and, in some situations, potential refunds.
Reconsider M&A Deal Structure
Buyers and sellers should carefully examine the tax implications of asset versus stock transactions.
Bonus depreciation, QSBS eligibility and other provisions could materially change the economics of a deal depending on the target company’s assets, R&D activity and ownership structure.
Consider International Tax Implications
Multinational manufacturers should also examine how these domestic provisions interact with international tax rules, including those involving GILTI and FDII.
Work Closely With Experienced Tax Advisors
The law is broad, and the impact will vary significantly from one company or transaction to another.
Experienced tax professionals can help manufacturers and business owners determine which provisions apply, model different scenarios and develop strategies that remain compliant while maximizing the available benefits.
What This Means for Manufacturing M&A
The 2025 tax law, particularly the OBBBA, creates a generally more favorable environment for business investment.
Permanent bonus depreciation, expanded incentives for domestic production, immediate R&D expensing and improved treatment of interest deductions could all encourage manufacturers to invest, expand and pursue strategic acquisitions.
At the same time, buyers may find asset-heavy manufacturing acquisitions increasingly attractive, while sellers of innovative and well-invested businesses may benefit from stronger buyer interest.
For manufacturers and business owners considering a transaction, understanding these changes is not simply a tax-planning exercise.
They can directly influence valuation, deal structure, capital investment and the timing of an acquisition or sale.