Section 179 is a part of the Internal Revenue Code that allows a taxpayer to elect to treat the cost of certain business property as an expense in the year the property is placed in service. Instead of depreciating the equipment over several years, a business may be able to deduct some or all of the cost right away.

For tax years beginning in 2025, the IRS says the maximum Section 179 deduction is $2,500,000, reduced dollar-for-dollar once total qualifying property placed in service exceeds $4,000,000. For instance, the 2025 SUV limit is $31,300. For 2026, the IRS adjusted this amount for inflation and lists the limit as $2,560,000, with the phase-out beginning after $4,090,000, and the SUV limit as $32,000.

The people who should pay attention are small business owners, farmers, contractors, professional service firms, and real estate investors who operate an active trade or business. A farmer buying qualifying machinery, a contractor buying equipment, or a business owner buying computers may all have a reason to look at Section 179.

For real estate investors, using Section 179 generally does not mean you get to immediately expense the purchase of a rental house. However, you can elect to treat certain qualified real property placed in service during the tax year as section 179 property. 

If you elect to use section 179, the term will include any qualified real property which is:

Qualified improvement property as described in section 168(e)(6), and any of the following improvements to nonresidential real property placed in service after the date the nonresidential real property was first placed in service.

This property is considered “qualified section 179 real property.” Take a look at Election for certain qualified section 179 real property under Part I, for more information on how to make this election.  

Normally, business assets are depreciated over time. Congress probably understood that if a business buys a $65,000 excavator, a $5,000 computer system, or $10,000 of office equipment, waiting years to recover the cost may discourage investment, because for one thing, the use of the equipment may be used up, or the equipment may become obsolete before its’ depreciation is used up. Hopefully that makes sense.

Anyway, section 179 encourages businesses to invest now. The theory is simple: if a business can recover the cost faster, it may be more likely to upgrade equipment, expand operations, improve productivity, or replace worn out assets, which spurs on the United States economy!

To use Section 179 properly, the property must be qualifying property, used in business, and placed in service during the tax year. “Placed in service” does not mean sitting in a box, sitting at the dealer, or waiting to be installed. It means ready and available for business use. IRS Topic No. 704 explains that Section 179 is deducted in the year qualifying property is placed in service, and the deduction is limited by taxable income from the active conduct of a trade or business.

One practical way to use Section 179 is to plan equipment purchases before year end. In other words, on the last day of the organization’s accounting and tax year. When the business closes their books for that year.  

If a farm needs a tractor, a contractor needs a work vehicle, or a business needs computers, the owner should ask this question before buying: 

A second practical way is to coordinate Section 179 with depreciation and bonus depreciation. The IRS instructions for Form 4562 warn that if you elect Section 179, you must reduce the amount used to figure depreciation or amortization by the Section 179 expense deduction.

The first mistake is buying equipment just to “save taxes.” Spending $80,000 to save a portion of that amount in taxes is not automatically a good deal. The equipment still has to make business sense.

The second mistake is poor documentation. If a vehicle, computer, or piece of equipment has mixed personal and business use, this can make things difficult. Special rules apply to vehicles and listed property. This is a big topic and the IRS discusses vehicle business use issues in Publication 463.

Section 179 is not a loophole. It is a legal election written into the tax code. Used correctly, it may help a business reduce taxable income, improve cash flow, and invest in productive assets. Used carelessly, it can create audit risk, recapture problems, or bad business decisions.

If you are thinking about buying equipment, vehicles, computers, or business property before year end, The Smith Advisory, [email protected] can help you review the numbers before you spend the money. Good tax planning starts before the purchase, not after the receipt is already in the shoebox.

The Smith Advisory helps business owners with tax-ready books, tax planning, and fractional CFO style guidance. If you want cleaner books and better decisions before tax season, reach out and let’s look at the numbers together.

This article is for information and entertainment purposes only. It is not tax, legal, accounting, investment, or financial advice for any specific person, business, farm, real estate investor, or organization. Section 179 depends on your facts, your books, your income, your entity, and how the property is used.