Section 179 Vehicle Deduction: How Much Can You Save Buying a Truck?

What Is Section 179?

Normally, when you buy equipment or a vehicle, you depreciate it over the IRS recovery period (e.g., 5 years), deducting a portion each year. Section 179 allows you to deduct all or most of the purchase price in the first year.

For truckers and small business owners, this can dramatically reduce taxable income in the year you buy a vehicle.

What Vehicles Qualify?

• Commercial trucks (Class 7-8 heavy vehicles)
• Pickups, vans, and other commercial vehicles over 6,000 lbs GVWR
• Trailers and semi-trailers
• The vehicle must be used for business purposes more than 50% of the time

Deduction Limits

The IRS updates the maximum Section 179 deduction annually. Check the IRS's current year announcement for exact figures, as limits are adjusted for inflation.

Key points:

• The deduction cannot exceed your net business income (it can't create a loss)
• If total equipment purchases exceed a certain threshold, the limit begins to phase out
• Unused Section 179 cannot carry forward (but Bonus Depreciation may serve as a supplement)

Section 179 vs. Bonus Depreciation

• Section 179: Has a deduction cap, can't create a loss, you choose how much to expense
• Bonus Depreciation: Can exceed profits (creating a loss carryforward), percentage set by current tax law

In many cases, both can be used together — apply Section 179 first, then Bonus Depreciation on the remainder.

Important Notes

• The vehicle must be placed in service during the tax year (not just ordered or paid for)
• If business use drops below 50%, you may need to recapture previously deducted amounts
• Financed or leased vehicles also qualify for Section 179 (you don't need to pay cash)
• Both new and used vehicles can qualify

Practical Tips

1. If you plan to purchase a vehicle near year-end, consult your tax advisor early on timing
2. Keep complete records: purchase contract, payment records, and date placed in service
3. Document the business vs. personal use percentage carefully
4. Don't look at Section 179 in isolation — plan it alongside regular depreciation and Bonus Depreciation

FAQ

How much can I actually deduct under Section 179?

The maximum deduction is updated annually by the IRS and adjusted for inflation — check the IRS's current-year announcement for the exact figure.

I only paid a deposit on a truck — can I deduct it this year?

No. The vehicle must be placed in service during the tax year; a deposit alone doesn't qualify.

Can I use Section 179 on a financed vehicle?

Yes — financed or leased vehicles qualify too, and you don't need to pay in full cash.

What happens if my business use drops below 50%?

You may need to recapture some of the previously deducted amount in a future year.

What's the difference between Section 179 and Bonus Depreciation?

Section 179 has a deduction cap and can't create a loss, and you choose how much to expense. Bonus Depreciation can exceed your profit and create a loss carryforward, with the percentage set by current tax law. In many cases you can combine both.

This article is general tax education and does not constitute personalized tax advice. Please consult a qualified tax professional for your specific situation.