Small Rig Math

Truck driver per diem 2026: full days, partial days and the 80% rule

Updated: November 14, 2026

If you are a self-employed or 1099 owner-operator, per diem lets you deduct a flat daily amount for meals and incidentals on the road instead of keeping every food receipt.

The 2026 rates

IRS Notice 2026-60 sets the transportation industry rate at $80 a day in the continental US and $86 a day outside it, for travel from October 1, 2026. It is the same as the year before.

The 80% rule

Drivers who are under DOT hours-of-service rules deduct 80% of the per diem, not the usual 50% for business meals. A full day in the continental US is $80 x 80% = $64 deductible.

Departure and return days count at 75%

The day you leave home and the day you get back are partial days. The common method counts them at three quarters: $80 x 75% = $60, so $48 deductible after the 80% rule.

Example

TripLeave Monday, back Sunday (7 days)
Full days5 x $80 = $400
Partial days2 x $60 = $120
Per diem total$520
Deductible (80%)$416

Over a year on the road, this adds up to thousands of dollars in deductions, which is why it is worth logging every trip.

Who can claim it

Generally self-employed and 1099 drivers. W-2 company drivers generally cannot deduct unreimbursed per diem. If you use the special transportation rate for any trip, use it for all your trips that year. Talk to a tax professional about your own return.

Our free per diem counter adds full and partial days for every trip and totals your deduction.

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Estimates for planning only, not tax or legal advice.