The Section 179 Tax Deduction (2025 & 2026 Limits)

Maximize immediate tax deductions on equipment, vehicles, and software under the newly expanded One Big Beautiful Bill Act limits.

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What is Section 179?

Under the IRS tax code, Section 179 allows you to deduct 100% of the purchase price of qualifying equipment in the year it is placed in service, rather than depreciating it slowly over many years.

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The New OBBBA Limits

Thanks to the One Big Beautiful Bill Act (OBBBA), the maximum deduction has massively increased to $2.5 million for 2025, and is inflation-adjusted to $2.56 million for 2026.

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Qualifying Purchases

Eligible assets include commercial vehicles over 6,000 lbs, computers, off-the-shelf software, office machinery, and certain real property improvements (like HVAC and security systems).

Heavy Vehicle Deductions and Section 179 Rules

Section 179 remains one of the most powerful tax strategies for business vehicles like SUVs, trucks, and vans. Heavy vehicles between 6,000 and 14,000 lbs Gross Vehicle Weight can qualify for accelerated write-offs, provided the vehicle is used at least 50% for business. 


However, strict business use logs are required—if your use drops below 50% in future years, the IRS enforces "recapture rules," forcing you to pay back part of your tax savings. Passenger cars under 6,000 lbs are subject to lower standard luxury automobile depreciation limits.

Section 179 vs. Bonus Depreciation

Understanding how to layer Section 179 with Bonus Depreciation is critical for business tax strategy. Section 179 cannot create or increase a business net loss; it is strictly limited to your net business taxable income. 


However, excess equipment costs that exceed the Section 179 limit can be written off using 100% Bonus Depreciation, which CAN create an operating loss to offset other income. At QCPAccounting, we calculate the precise blend of Section 179 and Bonus Depreciation to minimize your tax liability without wasting valuable deductions.

  • What is the Section 179 limit for 2026?

    Under the inflation adjustments from the One Big Beautiful Bill Act, the maximum Section 179 deduction limit for 2026 is $2,560,000, with a phase-out threshold starting at $4,090,000 in total equipment purchases.
  • How did the One Big Beautiful Bill change Section 179?

    The legislation permanently expanded the maximum Section 179 deduction ceiling to $2.5 million (indexed for inflation) and raised the spending phase-out threshold to $4 million, giving small and mid-sized businesses significantly higher upfront write-off limits.
  • Can Section 179 create a business loss?

    No. Section 179 is limited to your active net business taxable income and cannot be used to generate a net operating loss. However, unused amounts can be carried forward to future tax years, or excess equipment costs can be claimed under Bonus Depreciation.
  • What types of equipment qualify for Section 179?

    Most tangible goods, including machinery, vehicles, and office equipment, qualify for Section 179. However, certain limitations apply, so it's essential to consult with a tax professional to ensure compliance.
  • How can I maximize my Section 179 deduction?

    To maximize your Section 179 deduction, consider timing your equipment purchases strategically and consult with a tax advisor to ensure you're taking full advantage of available deductions.

Maximize Your Tax Write-Offs Before Year-End

Ensure you are leveraging the new Section 179 limits correctly. At QCPAccounting, we help you strategically plan major equipment and vehicle purchases to legally reduce your tax burden.

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