Trip Permits vs IFTA: When a Permit Beats a License
Two ways to be legal crossing a state line
If your qualified vehicle (26,000+ lbs or 3+ axles) enters another IFTA jurisdiction, you must either hold an IFTA license (with quarterly returns) or buy a temporary trip/fuel permit for that specific entry. Both are legal; the right one depends on how often you cross.
How trip permits work
Each state sells short-term permits — typically a 72-hour trip permit plus a fuel permit — bought before you enter (online, by phone, or through a permit service). Costs vary by state but commonly run $30–$100+ per state, per trip for the pair. Forget one and roadside fines start in the hundreds.
The break-even math
An IFTA license itself is cheap (often free to ~$10/decal set) — the real cost is the quarterly bookkeeping. The rule of thumb:
- A few interstate trips a year → permits win. Three single-state trips ≈ $150–$300 total, no quarterly filings.
- Monthly or regular interstate work → IFTA wins fast. Permit costs snowball, and a missing permit is a roadside event; a filed IFTA return is paperwork.
Traps with permits
- Permits are per state — a run through three states needs three sets.
- They're time-boxed — a breakdown that pushes you past 72 hours means buying again.
- They don't replace IRP: registration (apportioned plates vs trip registration permit) is a separate decision on the same trip.
If you go the IFTA route
Apply through your base state, display the decals, keep fuel receipts and per-state mileage, file four returns a year — even for zero-mile quarters.
Not sure which side of the line your operation falls on? Ask the AI assistant — describe your runs and it'll lay out permit vs license for your exact pattern.