Section 179 in 2026: The Business Owner's No-BS Guide to Writing Off Equipment

A plumbing company buys two new service vans and $30,000 in pipe inspection and diagnostic equipment — $80,000 total. They financed the whole thing in January, made four payments, and now it's tax time. Their accountant asks: do you want to take Section 179?

The owner has heard of Section 179. He knows it means something good. But he doesn't actually know what happens next, what the check looks like, or why it matters that he financed the equipment instead of paying cash.

This is for him. And for you, if that description sounds familiar.

What Section 179 Actually Is

The IRS lets businesses depreciate equipment over its useful life — spread the deduction across 5, 7, or 10 years depending on the asset type. That's the default. You bought a $40,000 piece of equipment; you deduct $8,000 a year for five years.

Section 179 is the override. Instead of spreading that deduction, you take the whole thing in Year 1. All of it. The equipment goes into service in 2026, and your 2026 taxable income goes down by the full purchase price.

That's the core of it. Everything else — limits, qualifications, the interplay with bonus depreciation — is detail layered on top of that simple idea.

The 2026 Limits

The Section 179 deduction limit adjusts for inflation each year. For 2026, the limit is estimated at approximately $1.25 million — meaning you can expense up to $1.25M in qualifying equipment placed in service this year.

There's also a phase-out threshold: once your total equipment purchases exceed roughly $3.13 million for the year, the deduction phases out dollar-for-dollar. This provision exists to keep Section 179 focused on small and mid-size businesses rather than large corporations buying fleets of aircraft.

Important caveat: These figures are estimates based on the inflation adjustment schedule. Confirm the exact 2026 limits with your CPA — they'll know the final numbers and how they apply to your situation.

One other limit people miss: your Section 179 deduction cannot exceed your business's taxable income for the year. If your business had $60,000 in taxable income, you can't deduct $80,000 through Section 179 and create a $20,000 loss. You deduct $60,000 this year and carry the remaining $20,000 forward. More on this below.

What Qualifies

Most tangible business property placed in service during the tax year qualifies. That includes:

• Machinery and equipment — manufacturing equipment, construction machinery, restaurant equipment, medical devices, CNC machines, and so on
• Business vehicles — with important restrictions (SUVs are capped at roughly $30,000 under Section 179; work trucks and vans without passenger seating have higher limits)
• Off-the-shelf software — business software you buy outright
• Qualified improvement property — certain improvements to nonresidential real property (roofs, HVAC, fire protection systems — not structural improvements or building expansions)

What doesn't qualify: land, buildings themselves, and property used outside the United States. Also, the equipment must be used for business purposes more than 50% of the time. Mixed personal/business use gets complicated fast — your accountant will want documentation.

Bonus Depreciation in 2026: Still Available, But Fading

Bonus depreciation is a separate provision that's been working alongside Section 179 for years. It follows a phase-down schedule set by the 2017 Tax Cuts and Jobs Act:

• 2022: 100%
• 2023: 80%
• 2024: 60%
• 2025: 40%
• 2026: 40% (same as 2025 under current law — verify with your CPA)
• 2027: 20%
• 2028+: 0% (unless Congress extends it)

Here's why this matters alongside Section 179: if you've maxed out your Section 179 limit or have equipment that doesn't qualify, bonus depreciation can pick up the rest. In 2026, 40% of the remaining cost basis is deductible in Year 1.

They're not mutually exclusive — you can stack them. Section 179 first, then bonus depreciation on the remaining basis.

The Financing Power Move

This is the part that genuinely surprises people: you can deduct the full cost of equipment under Section 179 even if you financed it.

You don't have to pay cash. You don't have to pay it off. You place the equipment in service, you use it in your business, and you take the deduction based on the full purchase price — regardless of how much you've actually paid so far.

Back to our plumbing company. They financed $80,000 in January, made four payments by December (roughly $7,000–$8,000 total), and then took Section 179 on the full $80,000. If they're in a 28% effective tax bracket, that's a $22,400 reduction in their tax bill — while having only paid a fraction of the equipment's cost out of pocket.

The equipment is also generating revenue all year while they make modest monthly payments. That's the compounding effect people underestimate. You're deducting an asset that's simultaneously earning its keep.

Use our equipment loan calculator to model payment amounts alongside your expected tax savings. Running both numbers together gives you a clearer picture of the net cost of ownership in Year 1.

When the Deduction Doesn't Make Sense

Section 179 isn't always the right move. Here's when to think twice:

You're in a low-tax year. If profits are down or you're near breakeven, you may not have much taxable income to offset. Accelerating a big deduction into a low-income year wastes the benefit. Spreading depreciation over multiple years sometimes makes more sense.

You expect significantly higher income next year. If your business is poised for a major growth year in 2027, deferring the deduction might put it to work against a higher tax rate. This is a real planning conversation to have with your CPA.

The equipment is mixed-use. If the asset is partly personal, the deduction is proportionally reduced and the paperwork burden goes up. Not disqualifying, but worth being aware of.

You're using an operating lease. If you lease equipment under an FMV or operating lease (one where the leasing company retains ownership), you generally can't take Section 179 — you don't own the asset. However, your lease payments are fully deductible as an operating expense. If you want Section 179, you need to own the equipment — either outright or via a $1 buyout lease or equipment loan.

The Plumbing Company: Real Math

Let's close the loop on the example from the top.

Equipment purchased: Two service vans ($50,000) + diagnostic equipment ($30,000) = $80,000 total, financed Business taxable income before deduction: $95,000 Section 179 deduction taken: $80,000 Taxable income after deduction: $15,000 Estimated federal tax savings (28% bracket): ~$22,400 Monthly loan payment on $80,000 at 9%, 60 months: ~$1,660

So the business reduced its tax bill by $22,400 while taking on $1,660/month in equipment payments. The equipment is generating revenue, the tax bill dropped significantly, and the out-of-pocket cost in Year 1 is far lower than the gross numbers suggest.

That's the power move.

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The non-negotiable caveat: Tax law is complicated, limits change, and your situation has specifics that no blog post accounts for. Work with a CPA who knows your business before making equipment purchasing or depreciation decisions. This post is meant to get you conversant in the concepts — not to replace professional tax advice.

If you're thinking about financing equipment before year-end to capture the 2026 deduction, the timeline matters. Equipment has to be placed in service (delivered and operational) in the tax year you want to claim. Don't wait until December 30th.

Explore equipment financing options or use our equipment loan calculator to model your numbers — then talk to your accountant about locking in the deduction.