Spoiler alert: It’s a big year for owner-operators looking to save some serious cash at tax time.

If you’re thinking about buying or leasing equipment before the end of the year, you’ve probably heard about the Section 179 deduction. And if you haven’t? Now’s the time to get familiar. This tax benefit can give your wallet a break and make upgrading your fleet a lot more doable.

Let’s break down what Section 179 is, what’s new for 2025, and how you can take advantage of it before December 31.

What Is Section 179?

Section 179 lets you deduct the full purchase price of qualifying equipment (new or used) if you finance or buy it and put it to work before the end of the year. Instead of slowly depreciating the value over time, you write off the whole thing now.

That means if you buy a $100,000 excavator this year and use it for work before New Year’s Eve, you could potentially deduct the full $100,000 from your taxable income. That’s real savings and a good excuse to upgrade your fleet before the year wraps up.

Section 179 Deduction Limit 2025 

Thanks to the new One Big Beautiful Bill Act (OBBBA), there are some major changes to Section 179 for the 2025 tax year:

• Maximum deduction: $2,500,000
• Total equipment spending cap: $4,000,000
• Phase-out threshold: Once you hit $4,000,000 in equipment purchases, the $2.5M deduction starts to phase out dollar-for-dollar.
• Elimination point: The deduction fully disappears when your total purchases reach $6,500,000.
• Inflation indexing: Starting in 2026, these limits will automatically adjust for inflation each year.

That’s a big jump from the previous $1,250,000 deduction limit and $3,130,000 spending cap. In short, if you’ve been holding off on that new loader or dozer, this might be your sign.

Bonus Depreciation Is Back (And It’s 100%)

The OBBBA didn’t stop there. It also restored bonus depreciation to 100% for 2025 (up from 60% last year).

That means if your equipment purchases exceed your Section 179 cap, you can still deduct 100% of the remaining cost using bonus depreciation as long as the equipment was acquired and placed into service after January 19, 2025.

Here’s how it works in practice: Let’s say you buy $3 million in equipment this year. You can write off $2.5 million under Section 179, and then deduct the remaining $500,000 using bonus depreciation.

What Qualifies for the Section 179 Deduction?

If it’s something you need to get the job done, chances are it qualifies. Eligible items include:

• New and used business equipment (like bulldozers, excavators, backhoes, skid steers, and compactors)
• Off-the-shelf software used for business operations
• Business-use vehicles, including heavy-duty trucks and SUVs
• Qualified real property improvements such as roofing, HVAC, and security systems

To qualify, the equipment must be:

• Purchased or financed between January 1 and December 31, 2025, and
• Put into service during that same period

Trade-Ins Still Count

Upgrading your old machine? You can still use Section 179 when trading in equipment.

For example, if you trade in a dozer worth $70,000 toward a new $200,000 model, your out-of-pocket cost is $130,000, and that full amount can be eligible for a Section 179 deduction.

It’s one more way to stretch your investment and keep your fleet up to date without taking a tax hit.

How to Claim Section 179

It’s not complicated, but it’s worth doing right. When you file your taxes, use IRS Form 4562 to claim the deduction. You’ll need to keep records of:

• Equipment purchase dates
• When it was placed into service
• How it’s used in your business

Southeastern is not a tax professional, and we strongly recommend that you consult with a qualified tax professional before filing. But the paperwork itself is simple, especially for small and mid-sized businesses.

Turn This Year’s Purchases Into Next Year’s Savings

Between the higher limits, full bonus depreciation, and the year-end deadline, 2025 is one of the best years yet to invest in new equipment.

Whether you’re growing your business, replacing aging machines, or picking up new attachments for efficiency, you can lower your taxable income while positioning your fleet for a busy year ahead.

Our team can help you find the right machine, get a fair trade-in value, and take advantage of the Section 179 deduction before December 31. Browse our latest inventory of new equipment, used equipment, or talk to your local Southeastern rep today.