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100% Bonus Depreciation Is Back: The Mid-Year Move Most Small Businesses Miss

OBBBA made 100% first-year expensing permanent for assets placed in service after January 19, 2025. Here is how to use the second half of the year to plan it well instead of scrambling in December.

For four years, buying equipment came with a tax asterisk. Bonus depreciation was phasing out—80% in 2023, 60% in 2024, 40% in 2025—and every capital purchase meant spreading the deduction across future years. The One Big Beautiful Bill Act (OBBBA) reversed that. 100% first-year bonus depreciation is back, and this time it is permanent, for qualifying property acquired and placed in service after January 19, 2025.

That is a genuinely good change for any business that buys equipment, vehicles, computers, or furniture. But “deduct it all now” is not automatically the right answer, and the businesses that come out ahead are the ones that decide in July, not the ones that find out from their accountant in April.

What actually changed

Under OBBBA, eligible business property placed in service after January 19, 2025 qualifies for 100% first-year expensing again. The full cost of a qualifying asset can be deducted in the year it is put to use, rather than depreciated over five, seven, or more years. Unlike the pre-2023 version, this is not scheduled to phase back out—so it is now a permanent part of how you plan capital spending.

Section 179 expensing was expanded alongside it. For 2025 the deduction limit rose to $2.5 million with a $4 million phase-out threshold, both indexed for inflation going forward. In practice, most small and mid-sized businesses now have more than enough room to fully expense their equipment purchases in the year they make them.

Why “deduct it all now” isn't automatic

A 100% deduction feels like a no-brainer, but taxpayers are explicitly allowed to elect out of bonus depreciation and recover the asset's cost over its normal MACRS life instead. There are real reasons a business chooses to:

The right answer is a projection, not a reflex. You need this year's expected income and next year's before you can say whether taking 100% now beats spreading it out.

The mid-year advantage

This is why July is the moment. With six months of actuals in hand and six months of visibility ahead, you can model the decision with real numbers instead of guessing in December. A useful mid-year pass looks like this:

Done in July, this turns into a plan: buy the things that make sense before year-end, sequence the placed-in-service dates deliberately, and know in advance which assets you will elect out on.

While you're at it: R&D expensing came back too

OBBBA also restored immediate deduction of domestic research and experimental costs, reversing the five-year amortization that had squeezed a lot of product and engineering-heavy businesses since 2022. Most taxpayers can accelerate their remaining unamortized R&D costs, either in one year or over the next two, and certain eligible small businesses can retroactively apply full expensing to 2022, 2023, and 2024—which can mean amending prior returns for a refund.

If you capitalized R&D over the last few years, the mid-year review is the time to quantify what a catch-up or amendment is worth before filing decisions get made under time pressure.

What to do this quarter

None of this requires waiting for tax season. The businesses that get the most out of permanent bonus depreciation are the ones that treat it as a planning tool through the year, not a line item they discover after the year is over.

If you want a clean mid-year projection and a documented depreciation plan—one your CPA can act on before year-end—that is exactly the kind of work our accounting and controller teams handle month to month.

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