What Is Section 179 and How It Works
Section 179 of the IRS tax code is a powerful incentive designed to help businesses binvest in themselves. Instead of spreading depreciation over several years, Section 179 allows you to deduct the full purchase price of qualifying equipment and software in the year it’s placed into service.
Whether you operate a small business or manage a large operation, Section 179 can significantly reduce your taxable income and make equipment purchases more affordable.
Why Section 179 Exists
Section 179 of the IRS tax code is a powerful incentive designed to help businesses binvest in themselves. Instead of spreading depreciation over several years, Section 179 allows you to deduct the full purchase price of qualifying equipment and software in the year it’s placed into service.
How Section 179 Works
(Simple Explanation)
Buy or finance qualifying equipment
- Equipment (new or used)
- Machinery
- Business vehicles
- Computers & office equipment
- Off-the-shelf software
- Certain building improvements
Place the equipment “into service”
To take the deduction, the asset must be operational during the tax year (not just purchased).
Deduct up to the annual Section 179 limit
Each year, the IRS sets a maximum deduction you can take. (Example: In 2024, the deduction limit was $1,220,000.)
Apply the phase-out rule
If your total equipment purchases exceed the annual spending cap, the deduction begins to phase out dollar-for-dollar.
(Example: In 2024, phase-out began at $3,050,000.)
This rule makes Section 179 primarily a benefit for small and mid-size businesses.
Combine with Bonus Depreciation (if needed)
If your equipment cost exceeds the Section 179 limit, you can use bonus depreciation to deduct additional value.
Section 179 Example
Scenario:
You buy a $75,000 piece of equipment for your business and put it into service this year.
Without Section 179:
You may depreciate ~$7,500/year over 10 years.
With Section 179:
You deduct the full $75,000 this year
What Qualifies for Section 179?
Eligible
- Heavy construction equipment
- Trucks, trailers, vans, commercial vehicles
- Excavators, loaders, forklifts
- Computers, monitors, servers
- Office furniture
- Off-the-shelf software
- Manufacturing equipment
- Medical & dental equipment
Improvements to Commercial Buildings
- HVAC systems
- Fire & alarm systems
- Security systems
- Roofing
- Doors & windows
What Does NOT Qualify
Section 179 generally does not apply to:
- Land or land improvements
- Buildings themselves (other than qualified improvements)
- Inventory for resale
- Property used outside the U.S.
- Airplanes (special rules apply)
- Rental property (unless used >50% for business**)
Benefits of Using Section 179
Immediate tax savings
- Lower net cost of equipment
- Encourages business growth
- Works with financed equipment
- Can be combined with bonus depreciation
- Helps small & mid-sized businesses scale faster**
Frequently Asked Questions (FAQs)
A: Yes – financing options are available that allow you to benefit from the full deduction.
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A: Eligible assets include new and used equipment, business vehicles (over 6,000 lbs GVWR), off‑the‑shelf software, and select improvements.
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Frequently Asked Questions (FAQs)
No. You can still take the full deduction even if you finance or lease the equipment. Section 179 is based on the purchase price, not the payment method.
You must purchase AND place the equipment into service by December 31 of the tax year. Simply ordering it is not enough.
Yes. As long as you buy qualifying equipment and stay under the annual spending limits, you can use Section 179 each year.
Yes — as long as the equipment is new to your business and you place it into service this year. It does not need to be brand-new.
Yes, but the rules differ by vehicle type:
- SUVs & certain passenger vehicles: capped deduction
- Heavy vehicles (6,000+ lbs GVWR): often qualify for full deduction
- Work vans, box trucks, dump trucks, etc.: typically fully deductible
Yes. Section 179 cannot create a net loss.
However, bonus depreciation can, so many businesses combine the two.
Yes — if they are “Qualified Improvement Property,” such as:
- HVAC systems
- Roofing
- Fire protection
- Security systems
- Alarm systems
Structural expansions typically do not qualify.
No. The asset must be used in the United States more than 50% of the time.
Yes — as long as they have taxable income to offset.
If the business is not profitable yet, bonus depreciation may be a better fit.
Any business that pays U.S. taxes, including:
- LLCs
- Corporations
- S-Corps
- Partnerships
- Sole proprietorships
Even side businesses may qualify if the equipment is used more than 50% for business.
The equipment must be used primarily for business.
Example: If a vehicle is used 70% for business and 30% personally, only 70% of the cost is eligible.
Yes — but only off-the-shelf software that:
- Is available to the general public
- Has not been custom-coded
- Is used in your business
- Is one-time purchased or licensed
Cloud-based SaaS can qualify depending on structure, but custom development generally does not.
Then it does NOT qualify this year. You must be able to prove it was installed, working, and needed in your business before December 31.
Yes. Most businesses use:
- Section 179 for the first part of the deduction
- Bonus depreciation to deduct the rest
They work together, especially for high-cost equipment.
In many cases, yes — you can file an amended return if you missed a deduction.
Check with your accountant for rules on your specific year.
Yes — in a good way.
Lenders often like Section 179 because it:
- Improves cash flow
- Reduces tax burden
- Makes equipment more affordable
This can help with approvals.
Yes. Your new basis becomes:
Equipment Cost – Section 179 Deduction – Bonus Depreciation
This affects future depreciation or tax planning when you sell the asset.
You should maintain:
- Purchase documents
- Date placed into service
- Business-use percentage
- Serial numbers / VINs
- Proof of payment
- Financing or lease paperwork