IFTA Filing Software That Does the Math for You
Stop spending entire Saturdays matching fuel receipts to states. HammerDash imports your ELD miles and fuel card data, calculates tax per jurisdiction, and generates your IFTA quarterly return — automatically.
What is IFTA and Why Does It Matter?
The International Fuel Tax Agreement (IFTA) is an agreement among 48 US states and 10 Canadian provinces that simplifies fuel tax reporting for commercial vehicles operating in multiple jurisdictions. If you drive a qualified motor vehicle (over 26,000 lbs or 3+ axles) across state lines, you must file a quarterly IFTA return.
The core IFTA formula calculates your fleet MPG (total miles ÷ total gallons), then determines how many taxable gallons you consumed in each state based on miles driven there. You owe tax to states where you drove more than you fueled, and receive credits from states where you fueled more than you drove.
Filing deadlines: Q1 by April 30, Q2 by July 31, Q3 by October 31, Q4 by January 31. Late filing incurs a penalty of $50 or 10% of tax due (whichever is greater) plus 1% monthly interest.
Common IFTA Filing Challenges
How HammerDash Automates IFTA Filing
Import ELD Data Automatically
Connect Samsara or Motive ELD. HammerDash pulls IFTA miles by jurisdiction for each vehicle — no manual entry.
Import Fuel Card Transactions
Upload WEX or Comdata CSV, or connect directly. Gallons, price per gallon, and state are extracted automatically.
One-Click Calculation
Fleet MPG, taxable gallons, net tax due per jurisdiction — calculated in seconds. Reefer fuel excluded. Oregon handled. Special state taxes flagged.
Anomaly Detection
AI checks for audit red flags: unusual MPG, round-number mileage, missing fuel in high-mileage states, MPG changes between quarters.