Section 179 vs Bonus Depreciation: 2026 Guide

Section 179 and bonus depreciation are two of the most powerful tax provisions for businesses purchasing equipment. Both allow you to deduct the cost of qualifying property in the year it is placed in service, rather than depreciating it over several years. But they work differently, and choosing the right one — or combining them — requires understanding the rules.

This is educational information, not tax advice. Deduction limits and rules change. Always confirm current-year limits with the IRS or a licensed tax professional.

Section 179: The Basics

• Annual deduction limit: Adjusted annually for inflation. For tax years beginning in 2026, the limit is $2,560,000 (IRS Rev. Proc. 2025-32).
• Spending cap: A phase-out threshold reduces the deduction once total equipment purchases exceed a certain amount (for 2026, the deduction phases out dollar-for-dollar above $4,090,000 and is fully eliminated at $6,650,000). Section 179 is designed for small and mid-sized businesses.
• Qualifying property: Machinery, equipment, vehicles, computers, and furniture. Certain real property improvements may qualify under specific rules.
• Business income limit: The deduction cannot exceed aggregate taxable income from all trades or businesses.
• Financing counts: You can use equipment financing and still claim Section 179 — you do not need to pay cash. The deduction is taken in the year the equipment is placed in service.

Bonus Depreciation: The Basics

• Percentage: The 2025 tax law (P.L. 119-21) permanently restored 100% bonus depreciation for qualifying property acquired after January 19, 2025 (IRS Notice 2026-11). Property acquired earlier under a binding contract may still fall under the old phase-down, so confirm acquisition dates with your CPA.
• No spending cap: Unlike Section 179, there is no dollar limit on total purchases.
• No business income limit: Bonus depreciation can create or increase a net operating loss (NOL), which may be carried back or forward subject to current NOL rules.
• Broader scope: Applies to a wider range of property, including used equipment (since 2018, subject to rules).
• Automatic vs. elective: Bonus depreciation is automatic unless you elect out. Section 179 must be specifically elected.

Key Differences at a Glance

Limits and percentages are based on published IRS figures as of October 2026. With bonus depreciation back at 100%, the choice now turns mostly on income limits, state conformity, and flexibility rather than the percentage. Tax law changes — verify current-year numbers before deciding.

How to Choose

In many cases, the answer is both. Section 179 is typically applied first, up to its limit, and then bonus depreciation applies to any remaining qualifying purchases. Your CPA determines the optimal combination based on total equipment spending, taxable income, and overall tax position.

• If purchases are under the Section 179 limit and you have sufficient business income, Section 179 may be preferable (100% deduction).
• If purchases exceed the Section 179 limit, bonus depreciation covers the excess.
• If business income is low or negative, Section 179 may be limited, while bonus depreciation can still apply and potentially create an NOL.

The Financing Connection

One of the most powerful combinations is equipment financing paired with Section 179. You finance over 3–5 years, preserving working capital, but take the full deduction in year one — potentially reducing tax liability significantly while cash outflow is limited to monthly payments.

This is a strategic decision that connects tax planning, cash flow, and funding structure — exactly the coordination a integrated approach is designed for. (See evaluating equipment payments and Section 179 explained.)

What to Discuss With Your CPA

• What are the current-year Section 179 and bonus depreciation limits?
• Does my planned equipment purchase qualify for both?
• Should I use Section 179, bonus depreciation, or a combination?
• How does the deduction interact with my overall taxable income?
• Does "placed in service" timing affect the deduction year?

Anchorvia coordinates tax review alongside funding and cash flow strategy. It does not provide tax advice or prepare returns. Consult a licensed CPA or EA.