Per Diem Deduction Calculator
Over-the-road days add up to one of the biggest deductions an owner-operator has. Estimate the deduction and what it actually saves you in tax.
By the HaulMath editorial team · Updated $1
Key numbers at a glance
| OTR days | Meal allowance at $69/day | 80% deduction | Tax saved at 22% |
|---|---|---|---|
| 100 | $6,900 | $5,520 | $1,214 |
| 150 | $10,350 | $8,280 | $1,822 |
| 200 | $13,800 | $11,040 | $2,429 |
| 250 | $17,250 | $13,800 | $3,036 |
Special rule for transportation workers: 80% of the federal M&IE rate, for nights away from your tax home where you sleep or rest on the road. Rates shown reflect recent IRS standard amounts — confirm the current year's figures with the IRS or your CPA before filing.
How it's calculated
Daily allowance = days × rate ($80 standard, $86 high-cost). The deductible portion is 80% under the transportation-worker rule. Your tax saving is the deduction multiplied by your marginal tax bracket.
A worked example
220 OTR days at the standard $69 rate: $15,180 in allowed meal & incidental expenses, 80% deductible = $12,144 deduction. At a 22% marginal bracket that's $2,672 back — real money that exists only because you counted the days. The same driver who "didn't keep track" and guesses 150 days leaves $840 on the table. This is also why a logbook-accurate day count is worth actual dollars: ELD records make the "nights away" proof nearly automatic.
What counts as an OTR day
The rule requires being away from your tax home overnight — sleeping or resting on the road. Day trips home each night don't count, no matter how long the day was. The first and last days of a trip are generally counted as full days for transportation workers under the special rule, but confirm the current-year treatment with your preparer. And note: this deduction belongs to whoever bears the meal cost — owner-operators claim it directly; company drivers who receive per diem payments have a different (shrinking) situation.
Documentation that survives an audit
Per diem is one of the most commonly claimed — and most commonly under-documented — owner-operator deductions. The IRS does not need your meal receipts for per diem claimed under the standard transportation-worker rate, but it does need proof of the days. What holds up:
ELD and logbook records showing nights away from your tax home — the cleanest possible evidence, already generated by your truck. Settlement sheets that show trip dates and lanes matching those logs. A trip calendar: one page, each assignment's start and end dates, updated through the year. Ten minutes a quarter builds a bulletproof file.
What does not hold up: round-number guesses ("about 200 days"), claiming per diem for days you were home, and claiming it while also receiving per diem payments from a carrier for the same days — that double-dip is the classic audit adjustment. Keep the documentation for at least three years after filing; keep the habit for the life of the business. The deduction is worth $2,000–$3,000 a year to a full-time OTR operator — the paperwork to defend it takes less time than one fuel stop.
The same math at four day counts — the $69 standard rate, the 80% transportation-worker rule, a 22% bracket:
| OTR days | Meal allowance at $69/day | 80% deduction | Tax saved at 22% |
|---|---|---|---|
| 100 | $6,900 | $5,520 | $1,214 |
| 150 | $10,350 | $8,280 | $1,822 |
| 200 | $13,800 | $11,040 | $2,429 |
| 250 | $17,250 | $13,800 | $3,036 |
FAQ
What is the per diem rate for truckers?
Under the special transportation-worker rule, the standard meal & incidental rate is $69/day ($79 in high-cost areas), with 80% deductible. Always verify current IRS rates for your tax year.
Who qualifies for the 80% special rule?
Workers subject to DOT hours-of-service rules who travel away from their tax home and need sleep or rest. Company drivers typically receive per diem as a payment; owner-operators claim it as a deduction.
Can I deduct meals if I'm home nightly?
No. The deduction requires being away from your tax home overnight — sleeping or resting on the road. A 14-hour day that ends in your own driveway is a long day, not a deductible one.
Do I need meal receipts to claim per diem?
No — that's the point of the standard rate. What you need is proof of the days: ELD records, settlement sheets and a trip calendar showing nights away. Keep those for at least three years after filing.
How much is per diem worth per year?
A full-time OTR operator running 220 days at the standard rate claims roughly a $12,000 deduction — about $2,600–$3,600 back at a 22–30% bracket. Counting days accurately is worth thousands, not hundreds.