This tool helps commercial truck drivers calculate total mileage and fuel consumption across multiple states, which is essential for quarterly IFTA (International Fuel Tax Agreement) reporting.
For each state you drove through, enter the total miles driven within that state's borders.
In the 'Fuel (Gallons)' field, enter the total gallons of fuel you purchased in that state.
If you drove through more than one state, click the "+ Add Another State" button to add a new row.
Once all your state-by-state data is entered, click the "Calculate Totals" button.
The calculator will provide your total miles driven, total fuel purchased, and your truck's overall Miles Per Gallon (MPG) for the trip.
Why is Tracking Mileage by State Crucial for Truckers?
The primary reason for meticulous state-by-state mileage tracking is compliance with the International Fuel Tax Agreement (IFTA). IFTA is an agreement among the lower 48 U.S. states and Canadian provinces to simplify the reporting of fuel use by motor carriers that operate in more than one jurisdiction.
Instead of filing fuel tax returns in every state or province, carriers file one quarterly report with their base jurisdiction. This report details the miles driven and fuel purchased in each member jurisdiction. The base state then collects and distributes the taxes to the other states accordingly. Accurate mileage logs are the foundation of this report and are critical for avoiding audits, fines, and penalties.
Example Calculation
Imagine a driver completes a route from Texas to Florida, passing through Louisiana, Mississippi, and Alabama.
Texas (TX): 550 miles driven, 100 gallons purchased.
Louisiana (LA): 200 miles driven, 0 gallons purchased.
Mississippi (MS): 150 miles driven, 0 gallons purchased.
Alabama (AL): 250 miles driven, 50 gallons purchased.
Florida (FL): 300 miles driven, 0 gallons purchased.
After entering this data into the calculator:
Total Miles Driven: 1,450 miles
Total Fuel Purchased: 150 gallons
Overall MPG: 9.67 MPG (1450 miles / 150 gallons)
This information is vital for the IFTA report, which determines if the driver owes taxes or is due a refund based on the fuel tax paid at the pump versus the tax liability calculated from miles driven in each state.
var stateCounter = 1;
function addStateRow() {
var container = document.getElementById('stateRowsContainer');
var newRow = document.createElement('div');
newRow.className = 'state-row';
var stateOptions = container.getElementsByClassName('state-select')[0].innerHTML;
newRow.innerHTML =
'
' +
'' +
" + stateOptions + " +
'
' +
'
' +
'' +
" +
'
' +
'
' +
'' +
" +
'
';
container.appendChild(newRow);
stateCounter++;
}
function calculateMileage() {
var totalMiles = 0;
var totalFuel = 0;
var isValid = true;
var rows = document.getElementById('stateRowsContainer').getElementsByClassName('state-row');
for (var i = 0; i 0) {
totalMiles += miles;
}
if (!isNaN(fuel) && fuel > 0) {
totalFuel += fuel;
}
}
var overallMpg = 0;
if (totalFuel > 0) {
overallMpg = totalMiles / totalFuel;
}
var resultsDiv = document.getElementById('results');
if (totalMiles > 0) {
resultsDiv.innerHTML =
'
Calculation Summary
' +
'Total Miles Driven: ' + totalMiles.toLocaleString('en-US') + ' miles' +
'Total Fuel Purchased: ' + totalFuel.toLocaleString('en-US') + ' gallons' +
'Overall Average MPG: ' + overallMpg.toFixed(2) + ' MPG';
} else {
resultsDiv.innerHTML = 'Please enter the miles driven to calculate your totals.';
}
}