Bookkeeping for Trucking and Owner-Operators: What You Need to Track

Done well, the books tell you your real cost per mile, which lanes are profitable, and whether your truck is making you money or quietly costing it. Done badly, you end up with a tax bill at year-end you didn't see coming.

This guide covers what owner-operators, lease operators, and small trucking businesses need to track.

1. Income by source

Trucking income usually comes from one of three structures:

• Independent owner-operator running under your own authority — You bill customers directly, manage your own freight, and get paid by brokers or shippers.
• Leased to a carrier — You haul under a carrier's authority. You get paid through them, usually with a settlement statement showing gross revenue minus deductions.
• Owner-operator with employees or company drivers — Same as above plus payroll complexity.

Each structure changes what your books need to show:

• Owner-op under own authority: revenue from each broker/shipper, tracked by load
• Leased to carrier: gross settlement amount before deductions (not just the net)
• Payroll-driven operations: revenue plus tracking driver pay separately

A common mistake for leased operators: recording the net settlement as revenue. The settlement deductions (insurance, escrow, fuel advances, etc.) are real expenses that should show up as separate line items. Recording net hides everything happening on the deduction side.

2. Fuel and IFTA

Fuel is the largest single expense for most trucking businesses, and the tax side is uniquely complicated for trucks.

IFTA (International Fuel Tax Agreement) is a system that lets truckers running across multiple states file fuel tax in one consolidated quarterly return rather than to each state individually. Your bookkeeping needs to support it.

What to track:

• Total miles driven, broken out by state
• Total gallons of fuel purchased, broken out by state
• Receipts or electronic records for each fuel purchase

The IFTA quarterly return reconciles where you bought fuel against where you drove, and either refunds or charges you the difference. If your records are bad, you either overpay or get hit with an IFTA audit — and IFTA audits are not gentle.

Most trucking businesses use a fuel card (Pilot, Loves, EFS) that auto-tracks gallons by state. Pair that with ELD-based mileage tracking and IFTA filing becomes manageable.

3. Per diem

The IRS allows truck drivers to claim a per diem deduction for meals and incidental expenses on overnight trips away from home. This is one of the most valuable deductions in trucking.

The basics:

• Per diem covers meals and incidentals (not lodging — that's separate)
• The DOT special transportation industry rate is currently around $80/day (verify the current year's rate)
• The deduction is 80% of the per diem for transportation workers under DOT hours-of-service rules
• You need to track which days you were away from home overnight

What you don't need: receipts for every meal. The per diem is a flat-rate deduction that replaces actual meal receipt tracking.

What you do need: a log of overnight days away from your tax home (typically your home terminal or residence). The ELD or trip log usually provides this.

4. Equipment and depreciation

The truck itself is the biggest asset on the books. How it gets depreciated affects both your taxes and your equity calculation.

Two relevant provisions:

• Section 179 lets you expense up to a high limit ($2.56M for 2026) of qualifying equipment in the year of purchase, subject to taxable income limits.
• 100% bonus depreciation is back permanently under OBBBA for property placed in service after January 19, 2025 — letting you expense the full purchase price in year one without the income limit.

For a $150,000 truck purchase, this means a potentially huge first-year deduction. The downside: you've used up your depreciation in year one, so subsequent years don't have it to offset income.

Most trucking CPAs run scenarios — full bonus depreciation now vs. spreading depreciation over years — based on your projected income. Your bookkeeping needs to track the truck (and any major equipment) as a fixed asset, not as a generic expense.

Also track:

• Maintenance and repair costs
• Tires (often replaced multiple times in a truck's life)
• Insurance (commercial vehicle, cargo, occupational accident if applicable)
• Permits and registrations

5. The "per mile" framework

Most successful trucking businesses track cost per mile. It's the metric that tells you whether a load is profitable.

Cost per mile typically breaks into:

• Fixed costs per mile — truck payment, insurance, permits, divided by total miles
• Variable costs per mile — fuel, maintenance, tires, driver pay (if applicable)
• Total cost per mile — sum of the above

Your revenue per mile minus your cost per mile tells you actual margin. Lanes paying $2.50/mile look great until you do the math and realize your total cost per mile is $2.20.

This framework requires:

• Total miles driven, captured by ELD or trip log
• Fixed costs totaled monthly or quarterly
• Variable costs tracked by category

Bookkeeping that doesn't produce a cost per mile is incomplete for trucking.

6. Settlement statement reconciliation

For leased operators, the carrier settlement statement is your primary income document. It needs to be reconciled against your bookkeeping monthly, not annually.

What's on a typical settlement:

• Gross revenue earned
• Deductions: dispatch fees, insurance, fuel advances, ESCROW holds, maintenance escrows, etc.
• Net settlement amount paid to you

Each line item should be categorized correctly in your books:

• Gross revenue → revenue account
• Insurance deductions → insurance expense
• Fuel advances → contra-revenue or fuel expense
• Escrow holds → asset account (you'll get this back)
• Dispatch fees → administrative expense

If you just record the net, you've buried real expense visibility — and at year-end, the categorization gets reconstructed badly.

7. 1099 vs W-2 (and worker classification)

If you have drivers, the classification question matters. Drivers can be:

• W-2 employees — payroll, withholding, employer-side taxes, workers' comp
• 1099 contractors — independent operators leasing to you, with their own authority or operating under yours

Trucking has historically been a high-risk area for misclassification audits. If a "1099 driver" runs only your loads, on your dispatch schedule, in your truck — they're probably an employee in the IRS's view.

(More on 1099 vs W-2 →)

Common mistakes

The patterns we see most often in trucking books:

• Recording net settlements instead of gross with deductions broken out
• No IFTA tracking — fuel purchases categorized but not by state
• Missing per diem because overnight days weren't logged
• Treating the truck as an expense instead of a depreciable asset
• No cost-per-mile visibility
• Mixing personal and business spending on the same card (very common for owner-ops)
• Missing 1099-NECs from brokers and shippers at year-end
• Misclassified drivers

Frequently asked questions

Where to start

If your trucking books don't show cost per mile, can't produce IFTA-ready fuel records, or treat your truck as a generic expense — those are the gaps to close. Trucking bookkeeping is doable, but it has to be set up specifically for trucking from the start.

SoFlo360 helps owner-operators and small trucking businesses with monthly bookkeeping and cleanup. Spanish-friendly support is available for owners who'd rather handle financial conversations in Spanish.

Book a free consultation or learn more about our bookkeeping services.