Alabama IFTA Fuel Tax Reporting and Compliance

Motor carriers based in Alabama that operate qualified motor vehicles in two or more IFTA jurisdictions must comply with the International Fuel Tax Agreement (IFTA). A qualified vehicle is defined by the Alabama Department of Revenue (ALDOR) as a motor vehicle used for transporting persons or property that has two axles and a gross vehicle weight or registered gross vehicle weight exceeding 26,000 pounds, has three or more axles regardless of weight, or is used in combination when the weight of such combination exceeds 26,000 pounds. The primary goal of IFTA is to simplify the reporting of fuel use taxes by allowing a carrier to file a single quarterly tax return with their base jurisdiction rather than individual reports for every state or province traveled. DispatchTool assists Alabama carriers in maintaining these records by automatically calculating miles traveled per state and integrating fuel purchase data for tax preparation. By centralizing GPS trip logs and digital fuel receipts, the platform reduces the administrative burden of manually reconciling odometer readings at state lines. Carriers can utilize these automated logs to populate their ALDOR filings accurately, ensuring compliance with the 3% to 5% audit rate typically maintained by state agencies. Create a DispatchTool account to start automating your quarterly mileage tracking and expense categorization for IFTA reporting.

Alabama IFTA Registration and Licensing

To register for IFTA in Alabama, a carrier must have an established place of business in the state, maintain their operational records in Alabama, and operate qualified vehicles in at least one other IFTA jurisdiction. Applications are submitted to the Alabama Department of Revenue, Motor Vehicle Division, via the My Alabama Taxes (MAT) portal. There is no fee for the initial IFTA license or for the two annual decals required for each qualified vehicle. However, carriers must renew their credentials annually by December 31. A grace period extends to February 28 of the following year, provided the renewal application was submitted by December 31. Failure to display valid decals can result in citations and fines ranging from $50 to several hundred dollars depending on the jurisdiction.

Quarterly Filing Deadlines and Penalties

Alabama requires IFTA tax returns to be filed on a quarterly basis. The deadlines are strictly enforced: April 30 for the first quarter, July 31 for the second quarter, October 31 for the third quarter, and January 31 for the fourth quarter. If the due date falls on a weekend or state holiday, the return is due the next business day. Failure to file by the deadline results in a penalty of $50 or 10% of the total tax due, whichever is greater. Interest is also charged on all late payments at a rate of 1% per month or fraction thereof. ALDOR requires all IFTA returns to be filed electronically through the MAT system, and payments must be made via Electronic Funds Transfer (EFT) if the liability exceeds $750.

Alabama Fuel Tax Rates and Surcharges

As of 2024, the Alabama excise tax rate for diesel fuel is $0.30 per gallon, and the rate for gasoline is $0.29 per gallon. These rates are subject to annual adjustments under the Rebuild Alabama Act, which allows for small incremental increases based on the National Highway Construction Cost Index. In addition to the base excise tax, carriers must account for the specific rates of other jurisdictions they traverse. For example, neighboring Mississippi currently has a diesel rate of $0.18 per gallon, while Georgia uses a combined excise and local option tax approach. When filing the IFTA-100 form, carriers calculate the net tax or refund by comparing the tax paid at the pump to the tax owed based on the total miles driven in each state.

Recordkeeping Requirements under Alabama Law

Alabama statutes and IFTA Articles of Agreement require carriers to maintain detailed records for a period of four years from the filing date or the due date of the return, whichever is later. These records must include Individual Vehicle Mileage Records (IVMR), which document the date of the trip, origin and destination, route of travel, beginning and ending odometer readings, and total distance traveled in each jurisdiction. Fuel records must include original receipts or invoices showing the number of gallons purchased, the type of fuel, the price per gallon, and the unit number of the vehicle. Summaries of these records must be compiled monthly and quarterly to support the figures reported on the tax return. Insufficient documentation can lead to the denial of fuel tax credits during an audit.

IFTA Audits and Compliance Reviews

The Alabama Department of Revenue is mandated to audit at least 3% of the IFTA accounts registered in the state every year to ensure compliance. Audits typically involve a comprehensive review of the carrier's mileage and fuel records for the past three years. If an audit reveals that a carrier has underreported mileage or overreported fuel purchases, the state will issue an assessment for the additional tax, plus interest and penalties. In cases of gross negligence or fraud, penalties can exceed 50% of the tax due. To mitigate audit risk, Alabama carriers should perform internal monthly reconciliations, ensuring that the total miles recorded by GPS or ELD devices match the odometer readings recorded on trip sheets.

Exemptions and Non-IFTA Miles

While most travel on public highways is taxable, certain miles may be exempt depending on the jurisdiction. Alabama does not currently offer broad exemptions for off-road travel or idling on the IFTA return for standard commercial carriers. However, some states allow deductions for miles driven on private property or for fuel used by Power Take-Off (PTO) units. Carriers must carefully track these 'non-taxable' miles separately and provide specific documentation to claim them. It is important to note that even if all miles are driven within Alabama and a neighboring state that offers an exemption, the Alabama base-state return must still account for the total global mileage to determine the correct fuel efficiency (MPG) calculation for the fleet.

Sources

Alabama Department of Revenue - Motor Vehicle Division (2024) — https://revenue.alabama.gov/motor-vehicle/ifta/ International Fuel Tax Association, Inc. (2025) — https://www.iftach.org/ Code of Alabama 1975, Section 40-17-140 (2024) — https://alison.legislature.state.al.us/code-of-alabama

Frequently asked

What happens if I forget to file my Alabama IFTA return?

If you fail to file, ALDOR will impose a penalty of $50 or 10% of the tax due. Additionally, your IFTA license may be revoked, and you will be unable to obtain new decals, effectively grounding your interstate operations until the delinquency is cleared.

Can I use my ELD data for IFTA reporting in Alabama?

Yes, ELD data is acceptable for IFTA reporting provided it meets the requirements of the IFTA Procedures Manual, including recording GPS coordinates at regular intervals and providing a complete trail of the vehicle's movement.

How do I get a refund if I overpaid my fuel taxes?

If your quarterly return shows a net credit (you paid more tax at the pump than you owed based on mileage), you can apply that credit to future quarters or request a refund check from the Alabama Department of Revenue.

Are there any fees for Alabama IFTA decals?

No, Alabama does not currently charge a fee for IFTA decals or the annual license, which is a significant cost savings compared to states like California or Nevada that charge per set.

What is a 'Qualified Motor Vehicle' in Alabama?

A qualified vehicle has two axles and a GVW over 26,000 lbs, has three or more axles regardless of weight, or is a combination vehicle with a total weight exceeding 26,000 lbs.