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THE MACHINEBLUE BOOKResearch · Market · Ownership
SECTION 179 GUIDE · 2026

Section 179 FAQ
for machine and equipment buyers.

Short answers to the questions machine buyers ask most often near year-end, with links to the detailed pages.

Not tax advice. Talk to your tax adviser or CPA about your situation. Information is current for the 2026 U.S. federal tax year (checked October 29, 2026); state rules differ.

QUESTIONS

Frequently asked questions.

What is the Section 179 limit for 2026?

$2,560,000 for tax years beginning in 2026, reduced dollar for dollar once the Section 179 property you place in service in 2026 costs more than $4,090,000 (IRS Rev. Proc. 2025-32).

Can I deduct a CNC machine I buy in December?

Yes, if it qualifies and is placed in service, meaning ready and available for its specific use, by the end of your tax year. Paying for it or having it delivered is not enough on its own.

Do used machines qualify for Section 179?

Yes. A used machine can qualify if you bought it for business use, it was not from a related person, and, for bonus depreciation, you had not used it before.

Can I take Section 179 on a financed machine?

Generally yes. The financed part of the price is part of the machine's cost, so the deduction can be based on the full cost even though you pay it over time.

Does a leased machine qualify?

Usually not for the lessee under a true lease, because the lessor owns it; lease payments are generally a business expense instead. Some leases with a nominal buyout may be treated as purchases. Ask your adviser.

Can I lower my taxes by buying inventory?

No. Goods held for resale are inventory, not equipment used in the business, and cannot be depreciated or expensed under Section 179. Their cost is generally recovered when they are sold.

What is the difference between Section 179 and bonus depreciation?

Section 179 is an election with a dollar limit and a business-income limit. 100% bonus depreciation applies automatically to qualifying property acquired after January 19, 2025, with no dollar cap and no business-income limit. Section 179 is applied first.

Is bonus depreciation 100% in 2026?

Yes, for qualifying property acquired after January 19, 2025. Property acquired under a written binding contract signed before January 20, 2025 follows the older, lower rate.

What if my business income is lower than the machine's cost?

Section 179 is limited to taxable business income, and the excess carries forward. Bonus depreciation is not limited by business income.

Does my state follow Section 179?

Not always. Many states limit or do not adopt Section 179 or bonus depreciation. Your adviser can tell you how your state treats each.

How do I claim Section 179?

On Form 4562, Part I, filed with your return for the year the property is placed in service.

What if I stop using the machine mostly for business?

If business use falls to 50% or less, part of the Section 179 benefit can be recaptured as income.

IN THIS GUIDE

The Section 179 guide.

SOURCES

Where these facts come from.

Published by Delta Arc, LLC · Editor: Michael Davis · Last reviewed October 29, 2026.

Not tax advice. Talk to your tax adviser or CPA about your situation. Information is current for the 2026 U.S. federal tax year (checked October 29, 2026); state rules differ.