Louisiana IFTA Filing — Rates, Portal & Deadlines
Everything an owner-operator needs to file IFTA in Louisiana — current quarterly rates, the base-state portal, surcharge handling, and the common mistakes that lead to penalties.
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Louisiana IFTA at a glance
| IFTA jurisdiction | Yes |
|---|---|
| Administering agency | Louisiana Department of Revenue |
| Filing frequency | Quarterly (Apr 30, Jul 31, Oct 31, Jan 31) |
| Surcharge | No |
| E-file required | No (electronic preferred, paper accepted) |
| Late penalty | $50 or 10% of tax due, whichever is greater |
| Record retention | 4 years (fuel receipts, mileage records, ELD logs) |
What's specific to Louisiana
Louisiana is a standard IFTA jurisdiction. Hurricane season frequently causes route changes — log actual driven miles, not the rate-con planned miles.
How to file IFTA in Louisiana
- Compile your quarterly mileage by jurisdiction — including deadhead and detour miles. ELD reports (Samsara, KeepTruckin / Motive, Geotab) export this directly.
- Compile your fuel purchases by jurisdiction. Fleet-card CSVs from EFS, Comdata, WEX, or RTS produce this in one click; if you're paying by personal card, you'll be reconciling receipts manually.
- Calculate fleet MPG (total miles ÷ total gallons), then taxable gallons per state (state miles ÷ fleet MPG). Use the free IFTA calculator if you'd rather not do this by hand.
- Apply the current quarterly rate for Louisiana, then net it against fuel tax already paid at the pump in Louisiana.
- File through the Louisiana Department of Revenue IFTA portal by the quarterly deadline.
- Retain receipts, mileage records, and ELD reports for at least 4 years in case of audit.
Common Louisiana IFTA mistakes
Filing a zero return late
Even if you didn't run Louisiana this quarter — or didn't run at all — you're still required to file. A late zero return triggers the same $50 minimum penalty as any other late filing.
Mixing up where you fueled vs. where you drove
Fuel purchased at the Louisiana state line counts for the state at the pump, not the state you drove next. This is where shoebox-of-receipts owner-operators most often lose IFTA credits.
Using rate-con planned miles instead of actual driven miles
The rate con says one number. Your actual mileage — including detours, fuel stops off-route, and rerouting around weather — is usually 5-10% higher. IFTA wants what you actually drove.
Run your Louisiana IFTA in 3 minutes — free
Upload your rate cons and fuel receipts. We pull the Louisianamiles and gallons, apply current quarterly rates, and hand you a filing-ready PDF.
Open the free IFTA calculatorNo signup required. One full calc per IP.
Other state IFTA guides
IFTA Filing Guide for Owner-Operators
Step-by-step IFTA primer covering all 48 states.
How IFTA Math Works
Worked examples of taxable gallons, credits, and net tax.
Owner-Operator Tax Deductions
Schedule C deductions every owner-operator can claim.
Trucking Compliance Checklist
Every DOT, FMCSA, and state filing in one place.