IFTA Quarterly Reporting

What IFTA quarterly reporting actually calculates

An IFTA quarterly return is not simply a record of miles driven — it's a reconciliation that answers: did you pay enough fuel tax in each jurisdiction based on how many miles you drove there? When you buy fuel in Texas, you pay Texas fuel tax embedded in the pump price. When you drive through Oklahoma, you owe Oklahoma fuel tax based on miles traveled there. IFTA settles the difference quarterly, crediting jurisdictions where you bought more fuel than your mileage requires and charging jurisdictions where you drove more than your fuel purchases would cover.

What data the return requires

• Total miles traveled in each IFTA member jurisdiction during the quarter
• Total gallons of fuel purchased in each jurisdiction during the quarter
• The calculated miles-per-gallon ratio for the fleet (used to determine how much fuel was 'consumed' in each jurisdiction)
• Vehicle identification for each qualified motor vehicle in the fleet
• Prior quarter credit or balance if applicable

Getting the mileage data ready

Mileage by jurisdiction is typically the most time-consuming part of IFTA prep. ELD exports that break down miles by state or province are the most efficient source — download the quarterly export in a format your filing software or base jurisdiction's portal accepts. If you use trip sheets or paper odometer logs, those need to be summarized by jurisdiction before entry. Cross-check total mileage from the ELD export against your odometer readings for the quarter to identify discrepancies before filing.

Getting the fuel data ready

Fuel data needs to show gallons purchased (not dollars paid) by jurisdiction. Fuel card transaction exports sorted by state and date are the most efficient source. Retail fuel receipts that show gallons and state can fill gaps where the card wasn't used. Non-IFTA fuel (DEF, reefer fuel, off-road diesel) is handled differently than highway diesel — check your base jurisdiction's IFTA instructions for how to report those fuel types.

Net tax due or refund

Once miles and gallons are entered for each jurisdiction, the IFTA calculation determines a net result. If the calculation shows you drove more miles than your fuel purchases covered across all jurisdictions, a net tax payment is due. If your fuel purchases exceeded what the mileage calculation requires, a net refund is owed to you. In practice, most quarters result in a modest balance due or a small refund rather than a large amount in either direction.

Filing with your base jurisdiction

IFTA returns are filed with your base jurisdiction — the state or province that issued your IFTA license. Most base jurisdictions now offer online filing through a carrier portal, and some accept electronic data upload from popular trucking software. The base jurisdiction's instructions define the accepted filing methods, the portal address or mailing address for paper returns, and the payment options for any balance due. Confirm these details with your specific base jurisdiction — they vary by state.

After filing

• Save the filed return or e-filing confirmation as the primary record that you filed on time
• Keep the payment confirmation if a balance was due — mismatch between a filed return and no payment record is an audit flag
• Note any refund due and the expected timeline from the base jurisdiction
• File the quarter folder with mileage records, fuel records, and the return confirmation together
• Start the next quarter's folder immediately so the data collection habit doesn't break

Helpful Tools

• IFTA Recordkeeping Checklist

FAQ