IRS Form 4562 is one of the most important tax forms for truck drivers who own their vehicles. It is used to claim depreciation and amortization deductions, including Section 179 expense, bonus depreciation, and MACRS depreciation. Properly completing this form can save you thousands of dollars in taxes each year. For a real-world example, if you purchase a $200,000 truck and qualify for Section 179, you could deduct the entire amount in year one, saving roughly $55,000 in taxes at the 22% bracket plus self-employment tax. This guide walks through every section of Form 4562 that applies to truck drivers, with practical examples and strategies for maximizing your depreciation deductions.
1. What Is IRS Form 4562?
Form 4562, Depreciation and Amortization, is the IRS form used to report deductions for the decline in value of business assets over time. For truck drivers, the most significant asset is the truck itself. The form has several parts, each covering a different type of depreciation method. Understanding which part applies to your situation is the first step to filing correctly.
The form is divided into six sections: Part I covers Section 179 expense, Part II covers MACRS depreciation for assets placed in service during the tax year, Part III covers MACRS for assets placed in service in prior years, Part IV covers listed property, Part V covers vehicles, and Part VI covers amortization. Most truck drivers will need to complete Parts I, II, and V at a minimum. If you drive 120,000 miles per year and your truck has a GVWR over 14,000 lbs, you qualify for the heavy vehicle exemption that eliminates luxury auto caps.
2. Section 179 Deduction for Trucks
Section 179 allows you to deduct the full purchase price of qualifying equipment in the year it is placed in service, up to a limit. For 2026, the Section 179 limit is $1,220,000, with a phase-out threshold of $3,050,000. Heavy-duty trucks used for business purposes qualify for Section 179, making this one of the most powerful tax-saving tools available to owner-operators.
Qualifying Vehicles for Section 179
To qualify for Section 179, a truck must be used more than 50% for business. Vehicles with a GVWR over 14,000 pounds are not subject to the luxury auto limits, meaning you can deduct the full cost up to the Section 179 limit. Most semi-trucks and heavy-duty commercial trucks meet this threshold, allowing significant first-year deductions.
Pro Tip: If you purchase a truck mid-year, your Section 179 deduction is not prorated for the number of months in service. You can claim the full Section 179 deduction as long as the truck is placed in service at any point during the tax year. For example, buying a $180,000 truck in December 2026 still lets you deduct the full $180,000 via Section 179, provided you have enough net business income.
Section 179 Real-World Example
Consider an owner-operator who buys a $210,000 sleeper truck in March 2026. Their net business income for the year is $150,000. Under Section 179, they can deduct $150,000 (limited to net income), reducing taxable income to $0. They then apply 80% bonus depreciation on the remaining $60,000 basis ($48,000), which can create a net operating loss carryforward. Total first-year depreciation: $198,000. Tax savings at 22% bracket: approximately $43,560 in federal income tax plus $22,770 in self-employment tax savings — a total of over $66,000 retained.
Pro Tip: If you purchase a truck mid-year, your Section 179 deduction is not prorated for the number of months in service. You can claim the full Section 179 deduction as long as the truck is placed in service at any point during the tax year.
3. Bonus Depreciation Rules
Bonus depreciation allows you to deduct a percentage of the cost of qualifying property in the first year it is placed in service. For 2026, the bonus depreciation rate is 60% for assets placed in service after September 27, 2017, under the Tax Cuts and Jobs Act phase-down schedule. This is separate from and in addition to Section 179.
Interaction Between Section 179 and Bonus Depreciation
You can use both Section 179 and bonus depreciation on the same asset, but the order matters. First, apply Section 179 to the cost of the asset. Then apply bonus depreciation to the remaining basis. Finally, the remaining balance is depreciated under MACRS. This stacking approach maximizes your first-year deductions, which is particularly valuable for truck drivers who make significant capital investments in their equipment.
4. MACRS Depreciation for Trucks
The Modified Accelerated Cost Recovery System (MACRS) is the standard method for depreciating business assets over their useful life. For heavy-duty trucks, the MACRS recovery period is five years. Under MACRS, you use the 200% declining balance method, which switches to straight-line when that yields a larger deduction.
MACRS Depreciation Tables
The IRS provides depreciation tables that specify the percentage of the asset you can deduct each year. For a five-year asset, the annual depreciation percentages are 20%, 32%, 19.2%, 11.52%, 11.52%, and 5.76%. These percentages apply to the adjusted basis of the asset after Section 179 and bonus depreciation have been applied.
| Year | MACRS % | Deduction on $50,000 Basis | Deduction on $100,000 Basis |
|---|---|---|---|
| Year 1 | 20.00% | $10,000 | $20,000 |
| Year 2 | 32.00% | $16,000 | $32,000 |
| Year 3 | 19.20% | $9,600 | $19,200 |
| Year 4 | 11.52% | $5,760 | $11,520 |
| Year 5 | 11.52% | $5,760 | $11,520 |
| Year 6 | 5.76% | $2,880 | $5,760 |
5. Listed Property Rules for Trucks
Trucks are classified as listed property, which means special rules apply. If you use your truck for both business and personal purposes, you must track the business-use percentage. Your depreciation deduction is limited to that percentage. If business use drops below 50% in any subsequent year, you may have to recapture previously claimed depreciation.
Documentation Requirements
Maintain a mileage log that records the date, purpose, and miles driven for each business trip. Personal mileage should also be recorded. The IRS requires contemporaneous records, meaning you should create them at or near the time of travel. For more guidance on record keeping, see our truck driver tax deductions explained article.
6. Completing Form 4562 Step by Step
Part I of Form 4562 is where you enter your Section 179 deduction. List the cost of your truck and any other qualifying property. The form calculates the total Section 179 deduction based on the limits. Part II is for MACRS depreciation. Enter the truck's basis after Section 179 and bonus depreciation, along with the date placed in service and the recovery period.
Part V specifically addresses vehicle depreciation. If your truck has a GVWR over 14,000 pounds, check the box indicating it is not subject to the passenger automobile limits. This is critical because it allows you to claim the full depreciation without the luxury auto caps that apply to lighter vehicles. For a heavy truck owner-operator driving 120,000 miles per year, this exemption alone can mean an additional $10,000-$18,000 in annual depreciation deductions compared to a driver using a lighter vehicle.
- Line 1: Enter your total Section 179 deduction for the truck and other qualifying equipment.
- Line 14: Enter MACRS depreciation for assets placed in service this year, including bonus depreciation.
- Line 19: Enter MACRS depreciation for assets placed in service in prior years.
- Part V: Enter vehicle information including GVWR and business-use percentage.
7. Common Mistakes on Form 4562
One of the most common errors is failing to properly calculate the business-use percentage of the truck. If you use the truck 80% for business and 20% for personal, your depreciation deduction is limited to 80% of what it would otherwise be. Another frequent mistake is applying the passenger automobile limits when the truck qualifies for the heavier vehicle exemption.
Failing to file Form 4562 at all is a missed opportunity. Many owner-operators overlook depreciation deductions because they think the process is too complicated. In reality, working with a tax professional who understands trucking can ensure you capture every available deduction. Review our truck driver tax deductions explained article for a comprehensive overview of all deductions available to you. Also see the owner-operator tax guide for more strategies.
8. Depreciation Strategies for Maximum Savings
Timing your truck purchase can significantly impact your depreciation deductions. Buying a truck late in the year still allows you to claim the full Section 179 deduction. However, MACRS and bonus depreciation are prorated based on the quarter the asset was placed in service. Use the mid-quarter convention rules to your advantage when planning purchases.
Consider the trade-off between Section 179 and MACRS over multiple years. Section 179 provides immediate relief, which is useful if you have high taxable income in the current year. MACRS spreads the deduction over five years, which can help smooth out your tax liability. A tax professional can model different scenarios to determine the optimal strategy for your specific financial situation.
Form 4562 is a powerful tool in your tax arsenal, but it requires careful attention to detail. By understanding each section and how it applies to your trucking business, you can confidently claim the depreciation deductions you deserve. Keep thorough records, consult with a professional, and plan your asset purchases strategically to maximize the tax benefits of your trucking equipment. For related guidance, visit the HVUT Form 2290 filing guide and IRS trucking forms overview.
Frequently Asked Questions
Do I need to file Form 4562 every year?
You file Form 4562 in the first year you place an asset in service and in any subsequent year you claim depreciation for that asset. For a heavy truck depreciated over five years under MACRS, you would file Form 4562 each year of that period. You also file it for Section 179 or bonus depreciation claims on newly acquired assets. If you only use the standard mileage rate, you do not file Form 4562 for your vehicle.
What is the difference between Section 179 and bonus depreciation?
Section 179 is limited to your net business income — you cannot use it to create a net operating loss. Bonus depreciation has no income limitation and can create an NOL. Section 179 also has a dollar cap ($1,220,000 for 2026) and a phase-out threshold. You can use both on the same asset: apply Section 179 first, then bonus depreciation on the remaining basis. For a $200,000 truck with $150,000 net income, you would use $150,000 Section 179 and then 60% bonus on the $50,000 remaining.
Can I use Form 4562 for a used truck?
Yes. Used trucks qualify for Section 179 and MACRS depreciation as long as they are used more than 50% for business. However, used trucks do not qualify for bonus depreciation unless they are new to you (first use). Section 179 has no restriction on new vs used equipment. Always verify the placed-in-service date and business-use percentage before computing depreciation.
What happens if my business use drops below 50%?
If business use of your truck falls below 50% in any year after claiming Section 179 or bonus depreciation, you may have to recapture the excess depreciation as ordinary income. This means paying back some of the tax benefit. Keep accurate mileage logs every year to track business vs personal use and avoid recapture surprises.
Do I need Form 4562 if I lease my truck?
No. If you lease your truck, you do not own the asset and cannot claim depreciation. Lease payments are deducted as an operating expense on Schedule C, not through Form 4562. However, if you have a lease with a purchase option that you exercise, you would then file Form 4562 for the depreciation of the purchased asset. See our lease vs buy guide for more details.