Trucking Tax Deductions: Every Write-Off Owner-Operators Miss
The Short Answer
The big ones: per diem ($69/day 2026), truck depreciation (Section 179 up to full purchase), fuel, maintenance, insurance, factoring fees, ELD/software, and cell phone. A trucking-specific CPA saves 5–10x their fee. Don't DIY trucker taxes.
Trucking is deduction-rich. Missing the standard write-offs costs a solo operator $8,000–$15,000/year in overpaid tax. Here is what to track.
Per diem ($69/day meal + incidentals, 80% deductible), truck depreciation (Section 179 or bonus), fuel, maintenance, insurance, factoring fees, IFTA, tolls, cell phone (business %), and home office if you dispatch from home.
The Owner-Operator Deduction Checklist
- Per diem: $69/day on the road (80% deductible for DOT-regulated drivers)
- Truck payment: interest portion (or full depreciation)
- Section 179 or bonus depreciation on truck purchase
- Fuel (100%)
- Maintenance + tires + parts (100%)
- Truck washes (100%)
- Insurance premiums (100%)
- IRP, IFTA, UCR, 2290 taxes (100%)
- ELD subscription + hardware (100%)
- Accounting/bookkeeping software (100%)
- Load board subscriptions (100%)
- Factoring fees (100%)
- Broker credit-check services (100%)
- Trucking association memberships (OOIDA)
- Cell phone (business %, usually 80–100%)
- Home office (dispatch corner, actual sq ft %)
- CDL renewal + medical card + drug tests
- Uniforms + gloves + safety gear
- Business meals with brokers (50%)
- Legal + CPA fees
Per Diem: The Biggest Miss
DOT-regulated drivers can deduct $69/day (2026 rate) for meals and incidentals on any day away from home overnight. At 250 days on the road, that's $17,250 in deductions, 80% deductible = $13,800. Miss this and you've overpaid by $3,500+ at a 25% rate.
The Section 179 lever
Section 179 lets you expense up to the full purchase price of your truck in the year you buy it (subject to limits). Buying a $60K used truck in December can offset $60K of profit. A trucking CPA will time this for you.
Quarterly Estimated Taxes
As a self-employed owner-operator, you owe estimated tax every quarter (April 15, June 15, Sept 15, Jan 15). Underpayment penalties are ~7% APR — meaningful money. Rule of thumb: sweep 25–30% of net into a separate tax savings account weekly.
Red Flags That Trigger Audits
- Round-number deductions ($10,000 in tools) with no receipts
- Home office claim over 300 sq ft for a one-truck operation
- 100% business use on a personal vehicle
- Per diem claimed on days you were home (ELD records don't match)
- Cash-only expense claims with no bank record
Why You Need a Trucking-Specific CPA
A generic CPA charges $500–$1,200 and misses per diem, Section 179 timing, and IFTA reconciliation. A trucking-specific CPA charges $800–$2,500 and typically saves 5–10x their fee in year 1. Trucker CFO, ATBS, and PBS Tax are the common names.
Frequently Asked Questions
How much can owner-operators deduct in per diem?+
$69/day (2026 IRS rate) for every day away from home overnight. 80% deductible for DOT-regulated drivers. A 250-day driver deducts ~$13,800 in per diem alone.
Can I deduct my truck purchase in year 1?+
Yes, via Section 179 (up to limits) or bonus depreciation. This can eliminate your first-year taxable income entirely. Talk to a trucking CPA before buying.
Do I need a CPA as a one-truck operator?+
Effectively yes. The tax code is too deduction-rich to DIY without missing money. A $1,500 CPA fee typically saves $5,000+ in real tax.