Heavy SUV & Truck Section 179 Deduction | 2026 Eligibility Guide

Step 1: Confirm the GVWR Threshold

The heavy-vehicle Section 179 rules turn entirely on one number: gross vehicle weight rating (GVWR), not the vehicle's price, brand, or body style. A vehicle with a manufacturer-rated GVWR above 6,000 pounds is treated as a heavy vehicle for Section 179 purposes. Anything at or below 6,000 pounds falls under the much stricter "luxury auto" limits instead — for 2026, that cap is roughly $12,200 in the first year (higher with bonus depreciation).

Step 2: Check Whether the SUV Cap Even Applies

Not every vehicle over 6,000 lbs is capped at $32,000. IRC Section 179(b)(5)(B) excludes several vehicle types from the SUV cap entirely, meaning they can use the full general Section 179 limit:

• Vehicles that seat more than 9 people behind the driver (most vans, shuttles)
• Vehicles with a cargo bed at least 6 feet long that isn't easily accessible from the cab (most full-size pickups)
• Vehicles with an integral enclosure fully separating the driver/passenger area from the cargo area, no seating behind the driver, and no body section protruding more than 30 inches ahead of the windshield
• Any vehicle with a GVWR over 14,000 lbs

If none of these exclusions apply — the common case is a heavy passenger SUV like a full-size 3-row SUV — the SUV cap applies.

Step 3: Apply the 2026 Dollar Limits

Per IRS Revenue Procedure 2025-32, for tax years beginning in 2026:

A vehicle that is excluded from the SUV cap (Step 2) can be expensed up to the full $2,560,000 general limit, subject to business-use percentage and taxable income limitations — not the $32,000 cap.

Step 4: Confirm Business Use

Regardless of vehicle type, you must use the vehicle more than 50% for business in the year it's placed in service to take any Section 179 deduction, and the deduction is limited to the business-use percentage of the cost.