What is Section 179?
Section 179 lets you deduct the full cost of qualifying equipment in the year you put it to work, instead of a little at a time over five or seven years. The 2026 numbers, what qualifies, the rules that trip people up, and how it works when you finance.
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What it actually does
Normally, when you buy a $90,000 machine, you recover the cost slowly: a slice of depreciation each year for five or seven years. Section 179 lets you skip that schedule and deduct the whole $90,000 this year.
It does not give you a bigger deduction overall. You take the same total sooner and give up the depreciation you would have claimed later. What it buys you is timing: the tax savings land now, when you just spent the money.
Section 179 moves the deduction forward. It does not create a new one.
It is not a reason to buy equipment you do not need
Every fall someone is told to “buy a machine before year end for the write-off.” Do the math first. A deduction is not a credit. It reduces taxable income, so it saves you your tax rate, not the purchase price. Spend $100,000 at a 25% effective rate and you save about $25,000 in tax. You are still out $75,000.
If you needed the equipment, that is a great outcome and you should use the deduction. If you did not, you just spent $75,000 to avoid $25,000. Section 179 makes a good purchase better. It is not a reason to make one.
The 2026 numbers
The phase-out is dollar for dollar. Place $4,590,000 in service and your maximum drops by the $500,000 excess, to $2,060,000. Our Section 179 calculator runs the phase-out, the income limit, and bonus depreciation for you.
These limits come from the One, Big, Beautiful Bill Act, which raised the cap to $2,500,000 starting in 2025, plus the inflation adjustment that brought it to $2,560,000 for 2026. Older guidance citing a limit near $1,250,000 is out of date.
What qualifies
- Most business equipment and machinery: production and shop equipment, construction iron, medical and dental equipment, commercial kitchens, material handling.
- Used equipment, not just new. It has to be new to you. A 2019 excavator from a dealer or a private seller can qualify.
- Off-the-shelf software and business computers.
- Office furniture and fixtures.
- Certain improvements to non-residential buildings: roofs, HVAC, fire protection, alarm and security systems.
- Work vehicles with little or no personal use, though vehicles have their own caps (below).
What does not qualify:
- Land and land improvements.
- Property used outside the United States.
- Most property held to produce income, such as typical rental real estate.
- Equipment used 50% or less for business.
The four rules that cause most problems
- Placed in service, not purchased. The equipment must be delivered, installed, and ready to use by December 31. A purchase order signed in December for a machine that arrives in February is a 2027 deduction. This is the most common year-end mistake.
- More than 50% business use. At 60% business use you deduct 60% of the cost. Drop below 50% later and you can face recapture, which adds some of the deduction back into income.
- It cannot create a loss. The deduction is capped at your taxable income from actively running the business. $400,000 of equipment against $150,000 of income means $150,000 this year; the rest carries forward.
- It is an election. You claim it on Form 4562. It is not automatic, and you can elect it on some assets and not others, a useful lever for your accountant.
Vehicles are where people get the wrong answer
- SUVs rated 6,001 to 14,000 lbs GVWR: Section 179 is capped at $32,000 for 2026, whatever the vehicle cost.
- Passenger cars and light trucks at or under 6,000 lbs GVWR: subject to the luxury auto limits, which cap first-year depreciation at roughly $20,300 when bonus applies.
- Work vehicles over 14,000 lbs GVWR, and vehicles with no real personal use (a dump truck, a service van with permanent shelving, a cargo area at least six feet long): generally not subject to the SUV cap.
GVWR is the manufacturer’s rating on the label inside the driver’s door, not what the vehicle weighs.
Section 179 vs. bonus depreciation
These are two different rules that get talked about as one. They work together, and the differences matter at the edges.
Bonus depreciation is 100% for qualifying property acquired and placed in service after January 19, 2025, and the One, Big, Beautiful Bill Act made that permanent. So for most ordinary purchases you can get a full first-year write-off either way. If your purchases exceed the Section 179 phase-out, bonus handles the excess. If Section 179 is capped by your income, bonus is not, though it can push you into a loss. Your accountant picks the mix.
How it works when you finance
When you finance under a structure that makes you the owner for tax purposes, such as an equipment finance agreement or a $1 buyout lease, you are generally treated as having bought the equipment. The full price is eligible for Section 179 even though you have made only a payment or two by December 31.
You can write off the whole machine this year while paying for it over the next five.
A $120,000 machine financed over 60 months might run about $2,500 a month, so you have paid roughly $5,000 by year end. Elect Section 179 on the full $120,000 and, at a 25% effective rate, the deduction is worth about $30,000 in tax. Your first-year tax savings can exceed your first-year payments.
Run your numbers on the Section 179 calculator, then price the payment in the Quote Builder. Two qualifications:
- Structure decides it. An equipment finance agreement or $1 buyout lease generally puts the deduction with you. A true fair-market-value lease generally does not; there you deduct the lease payments instead. Know which one you are signing.
- December 31 still applies. Financing does not change the placed-in-service rule. The approval, the order, and the delivery all have to happen with time to spare.
If you are doing this at year end
- Work backward from delivery. Lead times run weeks to months. Late November is already tight for anything that has to be built or shipped.
- Get the financing approved early. Application-only decisions are often same day, but larger files take longer, and December is the busiest month in equipment finance.
- Confirm installation, not just delivery. A machine sitting crated on your floor on December 31 is arguable at best.
- Estimate the deduction first. The calculator gives you a working number in a minute.
- Talk to your accountant before you buy, not in April. The income limit and the 179-versus-bonus mix depend on numbers only they can see.
The bottom line
Section 179 is one of the few parts of the tax code built plainly to encourage businesses to invest in themselves. If you are buying equipment you need, use it.
Keep the logic in the right order: decide the equipment makes sense for the business, then let the deduction improve the math. And if you finance, the write-off generally does not wait for you to finish paying.
General information, not tax advice. Section 179 outcomes depend on your entity, income, purchase mix, and state, and not all states follow the federal rules. Confirm your situation with your CPA before relying on any figure here.
Frequently asked questions
What is the Section 179 deduction limit for 2026?
For tax years beginning in 2026, the maximum is $2,560,000. It phases out dollar for dollar once you place more than $4,090,000 of qualifying property in service and disappears at $6,650,000. The figures come from IRS inflation adjustments on top of the permanent increase in the One, Big, Beautiful Bill Act.
Can I take Section 179 on equipment I financed?
Generally yes, if the structure makes you the owner for tax purposes, such as an equipment finance agreement or a $1 buyout lease. The full price is eligible in the year the equipment is placed in service, even if you have made only a payment or two. Under a true fair-market-value lease you typically deduct the lease payments instead.
Does used equipment qualify for Section 179?
Yes. It has to be new to you, not new. A used machine from a dealer, an auction, or a private seller qualifies if it is used more than 50% for business and placed in service during the tax year.
What does “placed in service” mean?
Delivered, installed, and ready for its intended use by December 31. Ordering it, paying for it, or having it crated on your floor is not enough. A purchase order signed in December for equipment that arrives in February is a deduction for the following year.
Can Section 179 create a business loss?
No. It is limited to your taxable income from actively running the business, so it can take income to zero but not below. Anything you cannot use carries forward. Bonus depreciation can create a loss, which is one reason the two are often used together.
How much can I deduct on a vehicle or truck?
SUVs rated 6,001 to 14,000 lbs GVWR are capped at $32,000 for 2026. Passenger cars and light trucks at or under 6,000 lbs fall under the luxury auto limits, about $20,300 in year one when bonus applies. Heavier work vehicles over 14,000 lbs, and vehicles with no real personal use, generally avoid the SUV cap. GVWR is the rating on the driver’s door label.
Is Section 179 the same as bonus depreciation?
No. Section 179 is capped at $2,560,000 for 2026, phases out above $4,090,000 of purchases, cannot create a loss, and is elected asset by asset. Bonus depreciation has no cap or phase-out, can create a loss, and applies to whole classes of property. Bonus is 100% for qualifying property acquired and placed in service after January 19, 2025.
Should I buy equipment just to get the deduction?
No. A deduction saves you your tax rate, not the purchase price. Spending $100,000 at a 25% rate saves about $25,000 and leaves you $75,000 out of pocket. Decide the equipment earns its keep first, then let the deduction improve the return.
Buying before year end?
Approvals are often same day on application-only files, and the equipment has to be delivered and running by December 31 to count. Start early. Not there yet? Estimate the write-off in the Section 179 calculator, then price the payment in the Quote Builder. No credit pull, no obligation.
This article is general information about commercial equipment financing and the Section 179 deduction. It is not tax, legal, or accounting advice, and it is not a commitment to finance. Tax outcomes depend on your entity type, taxable income, purchase mix, business-use percentage, and state conformity. Consult your CPA or tax advisor. All financing is subject to credit approval and underwriting.