Section 179 & GMC: Writing Off a Work Truck Before Dec 31 | Oakes GMC
If you run a business, the end of the year is when the question comes up: can I write off a work truck? For many owners, a GMC Sierra, Yukon, or Savana may qualify for a first-year tax deduction under Section 179 and bonus depreciation, but only if the vehicle clears a weight threshold, is used for business, and is in service by December 31. This page explains how it works in plain English, lists the published weight rating (GVWR) for each GMC model, and shows where the 2026 limits sit. It is general information, not tax advice, so talk to your tax pro before you buy.
Quick Answer: Which GMC Trucks Qualify for Section 179?
Most full-size GMC work vehicles, including the Sierra 1500, Sierra 2500HD and 3500HD, Yukon, Yukon XL, and Savana, have a published GVWR above 6,000 pounds, which is the starting point for the larger vehicle deduction. The vehicle must be purchased and placed in service by December 31, 2026 and used more than 50 percent for business. For 2026 the Section 179 maximum is $2,560,000, and heavy SUVs like the Yukon are capped at $32,000 of Section 179, with 100 percent bonus depreciation available on the rest. Pickups with a bed of six feet or more and many cargo vans are generally not subject to that $32,000 cap. Confirm everything with your tax professional.
Heads up: Oakes GMC is a dealership, not a tax advisor. Tax rules changed recently, and eligibility depends on your business, your income, and how you use the vehicle. Use this page to get oriented, then take the numbers to your CPA or tax preparer.
How a Section 179 Work Truck Write-Off Works (Plain English)
Normally, when a business buys a vehicle, the cost is deducted slowly over several years. Section 179 and bonus depreciation let a business deduct much more of that cost in the first year instead. Here is the short version in four steps.
1. The Vehicle Has to Be Heavy Enough
The IRS looks at the manufacturer’s gross vehicle weight rating (GVWR), not how much the truck actually weighs. Vehicles rated above 6,000 pounds (and up to 14,000 pounds) avoid the low annual depreciation caps that apply to lighter passenger vehicles.
2. It Has to Be a Business Vehicle
The vehicle must be used more than 50 percent for business, and the deduction is based on your business-use share. A truck used 80 percent for business generally supports a deduction on 80 percent of its cost.
3. Buy It and Put It in Service by Dec 31
For calendar-year businesses, the truck generally has to be purchased and placed in service by December 31, 2026. In service means delivered and ready for use in your business, not just ordered or signed for.
4. Claim It on Your Tax Return
Your tax professional elects Section 179, bonus depreciation, or both on IRS Form 4562. Which combination fits depends on your taxable income and goals, which is why this is a conversation to have before you buy.
2026 Section 179 Numbers at a Glance
The rules changed recently with the One Big Beautiful Bill Act, signed July 4, 2025, so older articles may show lower numbers. These are the figures for tax years beginning in 2026, from IRS Revenue Procedure 2025-32.
| Item | 2026 Figure | What It Means |
|---|---|---|
| Maximum Section 179 deduction | $2,560,000 | Total cap on equipment expensed under Section 179 for the year |
| Phase-out begins | $4,090,000 | The cap shrinks dollar for dollar once total qualifying purchases pass this amount |
| Fully phased out at | $6,650,000 | No Section 179 deduction once purchases reach this level |
| Heavy SUV Section 179 cap | $32,000 | Applies to SUVs rated 6,001 to 14,000 pounds GVWR, such as the Yukon and Yukon XL |
| Bonus depreciation | 100% | For qualifying property acquired after January 19, 2025, with no dollar cap |
| Minimum vehicle weight | Over 6,000 lbs GVWR | Lighter vehicles are subject to lower annual depreciation limits |
| Business use | More than 50% | Deduction is based on the business-use percentage |
Section 179 is also limited by your business taxable income, with any unused amount carried forward. Bonus depreciation is not limited that way and can create a business loss. Figures last reviewed October 30, 2026. See IRS Publication 946 and the Form 4562 instructions, and confirm current limits with your tax professional.
GMC GVWR Table: Sierra 1500, Sierra HD, Yukon, Yukon XL, and Savana
GVWR is the number that matters for the 6,000 pound rule. Here are the published ratings for the 2026 GMC models business owners ask about most, plus how each type of vehicle is generally treated for the $32,000 SUV cap.
| Model | Published GVWR (approx.) | Over 6,000 lbs? | $32,000 SUV Cap? |
|---|---|---|---|
| Sierra 1500 | About 6,800 to 7,000 lbs, varies by cab, bed, drivetrain, and equipment | Yes | Generally not if the bed is six feet or longer. Short-bed trucks (about 5.8 ft) may be capped. |
| Sierra 2500HD | About 10,000 to 11,550 lbs | Yes | Generally not, based on the pickup bed |
| Sierra 3500HD | Varies by configuration, up to 14,000 lbs on chassis cab models | Yes | Generally not, based on the pickup bed |
| Yukon | About 7,400 to 7,700 lbs, varies by trim and drivetrain | Yes | Yes, SUVs are typically capped at $32,000 of Section 179 |
| Yukon XL | About 7,600 to 7,700 lbs, varies by trim and drivetrain | Yes | Yes, SUVs are typically capped at $32,000 of Section 179 |
| Savana 2500 Cargo Van | 8,600 lbs | Yes | Generally not, for an enclosed cargo van with no seating behind the driver |
| Savana 3500 Cargo Van | 9,900 lbs | Yes | Generally not, for an enclosed cargo van with no seating behind the driver |
| Savana Passenger Van | Varies by configuration, see the door jamb label | Yes | Generally not if it seats more than nine behind the driver |
GVWR figures are manufacturer-published ranges for 2026 models and vary by exact configuration. The only number that counts is the one on the certification label on the driver’s door jamb of the specific vehicle. Other GMC models such as the Canyon, Terrain, and Acadia are not listed here, and their GVWR sits closer to the 6,000 pound line, so check the label before assuming they qualify. SUV cap treatment is general guidance, so have your tax professional confirm it for your vehicle.
Can I Write Off a GMC Yukon?
Possibly. A Yukon or Yukon XL is rated at roughly 7,400 to 7,700 pounds GVWR, so it is above the 6,000 pound line. Because it is an SUV, the Section 179 portion is capped at $32,000 for 2026. The good news is that 100 percent bonus depreciation may let a business deduct the rest of the business-use cost in the same year.
Hypothetical example, for illustration only: A business buys a Yukon XL for $80,000 and uses it 100 percent for business, with enough taxable income. Section 179 covers up to $32,000. Bonus depreciation may cover the remaining $48,000. That adds up to a possible first-year deduction of $80,000.
This is not a price quote, a prediction of your tax savings, or tax advice. Your actual result depends on your business use percentage, your taxable income, and the rules that apply to you.
If you use the truck personally too
If the Yukon is used 80 percent for business and 20 percent personally, the deduction is generally based on the 80 percent business share. If business use ever falls to 50 percent or below in later years, some of the earlier deduction can be recaptured. Keep a mileage log from day one.
Pickups and Vans: When the $32,000 SUV Cap Generally Does Not Apply
The $32,000 cap is aimed at SUVs. Certain vehicles are generally outside it, which is why work trucks and vans are popular for year-end purchases.
Pickups With a Six-Foot Bed or Longer
A pickup with an open cargo bed at least six feet long that is not accessible from the cab is generally not subject to the SUV cap. A Sierra 1500 with the 6.6 ft standard bed or the 8 ft long bed clears six feet. A short-bed crew cab of about 5.8 feet does not, so bed length matters when you choose.
Enclosed Cargo Vans
A full-size cargo van like the Savana 2500 or 3500 with no seating behind the driver is generally outside the SUV cap. Both are rated well above 6,000 pounds GVWR.
Vehicles That Seat More Than Nine
Passenger vans designed to seat more than nine people behind the driver generally avoid the cap too. That can matter for shuttle, church, and large-crew uses.
The Fine Print Still Applies
Business use over 50 percent, the in-service deadline, and your taxable income limit still apply. Section 179 is also capped at your business income, so ask your tax pro whether bonus depreciation or a mix fits better.
Vehicles Over 6,000 Pounds and the Tax Deduction for Kansas City Businesses
Section 179 is a federal deduction, so Missouri and Kansas businesses use the same federal limits. That covers contractors in Liberty and Gladstone, landscapers and haulers in Riverside and Independence, and growing companies in Olathe and Overland Park. State income tax treatment can differ from federal rules, so ask your tax professional how Missouri or Kansas applies to your business.
If your business is in the Kansas City area and you are weighing a truck or van before year end, Oakes GMC at 3200 Main Street in Kansas City can show you the exact GVWR label on any vehicle in inventory so your tax pro has real numbers to work with.
A Practical Timeline Before December 31
| When | What to Do |
|---|---|
| Now | Talk to your CPA or tax preparer about whether a vehicle purchase fits your 2026 tax picture. |
| Early November | Pick the model, bed length, and configuration, and confirm the GVWR on the exact vehicle. |
| November to Mid-December | Complete financing and paperwork, and take delivery. Do not wait for the last week of the year. |
| December 31 | The vehicle generally has to be purchased and in service in your business by this date. |
What to Bring to Your Tax Professional
- ✓The exact model, cab, bed length, and drivetrain
- ✓The GVWR from the driver’s door jamb label
- ✓The purchase price and how you plan to pay for it
- ✓Your expected business-use percentage
- ✓The date you expect to take delivery and start using it
- ✓Your other 2026 equipment purchases
Find a Work Truck With the Right GVWR
Browse GMC inventory, or tell the Oakes GMC team what your business needs and we will show you the GVWR label on the exact vehicle.
Section 179 and GMC Questions from Kansas City Business Owners
Which GMC trucks qualify for Section 179?
Most full-size GMC work vehicles clear the 6,000 pound GVWR threshold that Section 179 vehicle deductions are built around. That includes the Sierra 1500, Sierra 2500HD and 3500HD pickups, the Yukon and Yukon XL, and the Savana cargo and passenger vans. The vehicle also has to be purchased and placed in service by December 31, 2026 and used more than 50 percent for business. Pickups with a bed at least six feet long and many cargo vans are generally not subject to the $32,000 SUV cap, while the Yukon and Yukon XL are. Confirm your situation with a tax professional.
Can I write off a GMC Yukon?
Possibly. A Yukon or Yukon XL has a published GVWR of about 7,400 to 7,700 pounds, which is above the 6,000 pound line. Because they are SUVs, the Section 179 portion is capped at $32,000 for 2026, but 100 percent bonus depreciation may allow the remaining business-use cost to be deducted in the same year. The vehicle must be used more than 50 percent for business, and the deduction is based on the business-use percentage. Ask your tax professional whether this fits your situation.
What is the Section 179 deduction limit for 2026?
For tax years beginning in 2026, the maximum Section 179 deduction is $2,560,000. The deduction begins to phase out dollar for dollar once total qualifying purchases exceed $4,090,000 and is fully phased out at $6,650,000. These figures come from IRS Revenue Procedure 2025-32. Heavy SUVs are separately capped at $32,000 of Section 179 for 2026.
Does a vehicle have to weigh over 6,000 pounds for Section 179, and what is GVWR?
For the larger heavy-vehicle deduction, yes. Vehicles with a GVWR above 6,000 pounds and up to 14,000 pounds avoid the lower annual depreciation caps that apply to lighter passenger vehicles. GVWR stands for gross vehicle weight rating, the maximum loaded weight the manufacturer rates the vehicle for, including passengers, cargo, and fuel. It is not curb weight. You can find it on the certification label on the driver’s door jamb.
What is the deadline to write off a work truck in 2026?
For businesses that file on a calendar year, the vehicle generally has to be purchased and placed in service by December 31, 2026. Placed in service means the vehicle has been delivered and is ready and available for use in your business. Ordering a truck before the deadline is not the same as having it in service, so plan ahead for paperwork and delivery.
Can I use Section 179 on a financed or leased vehicle?
Section 179 generally applies to vehicles you purchase, and financing a purchase does not usually disqualify it. Leases are treated differently, and normally only purchases qualify. Because financing and lease structures vary, confirm the details with your tax professional before you sign.
Does a GMC Savana cargo van qualify for Section 179?
Generally yes. The Savana 2500 is rated at 8,600 pounds GVWR and the Savana 3500 at 9,900 pounds, both above 6,000 pounds. An enclosed cargo van with no seating behind the driver is generally not subject to the $32,000 SUV cap, and passenger van configurations that seat more than nine people behind the driver also generally avoid it. Your tax professional can confirm how your specific van is treated.
What is the difference between Section 179 and bonus depreciation?
Section 179 lets you deduct the cost of qualifying equipment in the year you place it in service, up to an annual dollar limit and your business taxable income. Bonus depreciation, which is 100 percent for qualifying property acquired after January 19, 2025, has no dollar cap and can create a business loss. For heavy SUVs the two are often used together: up to $32,000 under Section 179, then bonus depreciation on the remaining business-use cost.
Do Kansas City businesses get the same Section 179 deduction?
Section 179 is a federal deduction, so Missouri and Kansas businesses use the same federal limits. State income tax treatment can differ from federal rules, so ask your tax professional how Missouri or Kansas handles it for your business.
Should I talk to a tax professional before buying a work truck?
Yes. Oakes GMC is a dealership, not a tax advisor. Eligibility depends on how the vehicle is used, your business income, your overall tax situation, and the rules in effect when you file. Bring the vehicle’s GVWR, purchase price, and expected in-service date to your CPA or tax preparer.
Where can I buy a GMC work truck near Kansas City?
Oakes GMC at 3200 Main Street in Kansas City, Missouri sells new GMC Sierra, Yukon, and Savana vehicles and serves business owners in Kansas City, Liberty, Gladstone, Riverside, Independence, Olathe, and Overland Park. View inventory online or contact the Oakes GMC team.
Talk to Your Tax Professional
The information on this page is general and educational. It is not tax, legal, or financial advice, and Oakes GMC is not a tax advisor. Whether a vehicle qualifies, how much you can deduct, and which method fits your business depend on your individual facts, including vehicle use, business income, and the tax rules in effect when you file. Tax laws and IRS limits change, and the figures here reflect IRS Revenue Procedure 2025-32 for tax years beginning in 2026, as last reviewed on October 30, 2026.
Always confirm eligibility, the GVWR of the specific vehicle, and your deduction with a qualified CPA or tax professional before you buy. GVWR figures are manufacturer-published ranges and can vary by configuration.
Shop GMC Work Trucks at Oakes GMC in Kansas City
Oakes GMC at 3200 Main Street in Kansas City is built on three things: transparency, value, and relationships. For a business buyer, that means straight answers about what a truck is rated for, the GVWR printed on the vehicle in front of you, and a team that is happy to work alongside your tax professional. We serve business owners from Kansas City, Liberty, Gladstone, Riverside, Independence, Olathe, and Overland Park.