Truck drivers often hear the term per diem. It means “per day”—a standard daily amount used to calculate eligible meals and incidental expenses (M&IE) during qualifying business travel. It is not a check the IRS sends you.
1. Local vs. long-haul: who may qualify?
| Situation | General federal treatment |
|---|---|
| Self-employed local driver returning home daily | Ordinary workday meals generally not deductible |
| Self-employed long-haul driver on qualifying overnight trip | Eligible travel meals may qualify |
| Qualifying transportation worker subject to DOT hours-of-service rules | Special 80% meal deduction limit may apply |
| W-2 company driver | Generally cannot personally deduct ordinary unreimbursed meals federally; qualified employer reimbursements differ |
Qualifying travel typically requires being away from your tax home substantially longer than a normal workday and needing sleep or rest. Sleeping in a truck sleeper berth can qualify; a paid hotel isn't mandatory. Drivers without a regular tax home may face additional restrictions. Holding a CDL alone does not create a deduction.
2. What does trucking per diem cover?
It covers eligible meals, related taxes and tips, and certain incidental expenses. It generally does not include diesel, truck repairs, hotel costs, tolls, or loan payments; those have separate rules.
For qualifying transportation-industry travel in the relevant 2026 rate periods:
| Travel location | Special daily M&IE allowance |
|---|---|
| Continental United States (CONUS) | $80 |
| Outside CONUS | $86 |
Qualifying workers subject to the DOT hours-of-service requirements may deduct 80% of eligible meal expenses or allowance. Other eligible meals are generally subject to 50%. Example: $80 × 80% = $64 potential deduction for one full eligible day—not a $64 refund.
3. Five-day trip example
Assume a qualified self-employed interstate driver leaves Monday, returns Friday, follows the common 75% partial-day method, uses the $80 CONUS transportation rate, and receives no relevant reimbursements.
| Day | Daily allowance |
|---|---|
| Monday — departure (75%) | $60 |
| Tuesday | $80 |
| Wednesday | $80 |
| Thursday | $80 |
| Friday — return (75%) | $60 |
| Total allowance | $360 |
| 80% potential deduction | $288 |
Other reasonable consistently applied partial-day methods may be available. The example assumes all travel days qualify.
4. Per diem vs. actual meals
If you spend $35 on eligible meals in a full qualifying travel day, the actual cost method would give $28 at an 80% limit. The special $80 daily rate could yield $64 for that same qualifying day if you meet its conditions. You cannot deduct per diem and the same actual meals a second time. Travel records are required even if meal receipts are not used to substantiate the standard allowance.
5. W-2 drivers and employer per diem
An employer may provide qualifying travel reimbursements through an accountable plan. Properly substantiated reimbursements can be excluded from wages, but labeling part of regular pay “per diem” does not automatically make it tax-free. W-2 drivers generally cannot independently claim unreimbursed meal allowances on Form 1040.
6. Common mistakes and misunderstandings
- “I have a CDL, so I claim $80 for every shift.” Not ordinary daily local work.
- “The IRS pays drivers $80 per day.” It is an allowance used to calculate deductions.
- “Every truck driver gets 80%.” The special limit depends on the relevant DOT hours-of-service rules.
- “Departure and return always count as full days.” Partial-day proration applies.
- “Per diem means I need no documentation.” Trip dates, destinations, business purpose and tax home still matter.
- “I can claim actual meals and per diem together.” Not for the same meal expense.
- “Employer reimbursement does not affect my claim.” Reimbursements must be considered.
7. Calculate a preliminary total before tax preparation
Log each trip's departure/return dates, destination, full days, partial days, nights away, and any carrier/employer reimbursement. Retain ELD logs, dispatch records, bills of lading, and settlement statements.
Example: 20 full qualifying days × $80 = $1,600; 10 qualifying partial days × $60 = $600. Total allowance $2,200; potential 80% deduction $1,760 subject to actual eligibility and reimbursements.
Your preparer should verify the tax-home rules, DOT qualification, travel records, and correct allowance period before filing.
Official references: IRS Publication 463 · 2026–2027 transportation per diem notice.