What Is IFTA? Fuel Tax Reporting, Stickers, and How to File
If you run a commercial truck across state lines, you need to understand IFTA. The International Fuel Tax Agreement controls how fuel taxes are reported and paid across every state you drive through. Getting it wrong means fines, late penalties, and your credentials being revoked.
This article covers how IFTA works, how to get your IFTA stickers and license, how to file IFTA fuel tax returns each quarter, what it costs, and how to calculate your taxable miles.
Quick Summary
IFTA stands for the International Fuel Tax Agreement. It is a fuel tax reporting agreement between the 48 contiguous U.S. states and 10 Canadian provinces. Instead of filing fuel taxes separately in every state you drive through, IFTA lets you report everything through your home state (your "base jurisdiction"). You file one quarterly return, and your base state handles splitting the taxes to each jurisdiction based on your miles and fuel purchases. To operate under IFTA, you need an IFTA license and two IFTA stickers (decals) on each truck.
TIPS handles IFTA registration and quarterly filings for carriers across all 50 states. Get started here.
You can watch our short video talking about IFTA, what it is, and who it applies to below.
What Is IFTA and How Does It Work?
IFTA stands for the International Fuel Tax Agreement. It is a cooperative agreement between the 48 contiguous U.S. states and 10 Canadian provinces that simplifies fuel tax reporting for interstate carriers.
Here's how IFTA works. Every state charges a fuel tax, and every state's rate is different. Before IFTA existed, carriers had to file separate fuel tax returns in every single state they drove through. That meant dozens of individual filings, each with its own rules and deadlines.
IFTA replaced that system. Now, you register with one state (your base jurisdiction) and file a single quarterly report. That report lists the total miles you drove and the total fuel you purchased in each state. Your base state uses that information to calculate what you owe or what you're owed. If you bought more fuel in a state with a higher tax, and did more of your driving in a state with a lower fuel tax, you get a credit. The reverse is also true.
Think of it this way: fuel taxes are paid at the pump every time you fill up. IFTA redistributes those taxes so each state gets its fair share based on how many miles you actually drove there.
Your IFTA account number is your unique identifier in the system. In most states, it is your federal Employer Identification Number (EIN) with your state's abbreviation in front of it. For example, an Idaho-based carrier's IFTA number might look like ID 123456789.
IFTA vs. IRP: What's the Difference?
IFTA and IRP are two separate requirements that often get confused. They cover different things, but both apply to the same types of vehicles.
IFTA covers fuel tax reporting. It determines how much fuel tax you owe in each state based on miles driven and fuel purchased.
IRP covers vehicle registration. It gives you apportioned license plates and a cab card so your truck can legally operate across state lines.
Both require detailed mileage tracking by state. That is why they are often managed together. If you need one, you almost certainly need the other. For a full breakdown of IRP registration and cab cards, read our IRP guide.
Who Needs IFTA?
You need an IFTA license if your vehicle meets the definition of a "qualified motor vehicle" and operates in two or more IFTA member jurisdictions. A qualified motor vehicle is one that is used for transporting people or property and meets any of these conditions:
Has two axles and a gross vehicle weight or registered gross vehicle weight over 26,000 pounds (GVWR)
Has three or more axles, regardless of weight
Is used in combination where the combined weight is over 26,000 pounds (GCWR)
If you only operate in one state, you do not need IFTA. If you make only occasional trips across state lines (a few times a year), you may be able to use temporary fuel trip permits instead of a full IFTA license. But for most interstate carriers, IFTA registration is required.
Government vehicles, recreational vehicles, and vehicles covered by a valid fuel trip permit for that jurisdiction are exempt.
How to Get IFTA: Your License and Stickers
Step 1: Choose Your Base Jurisdiction
Your base jurisdiction is the state where your business is located, your vehicles are registered, and your records are kept. You apply for your IFTA license through this state.
Step 2: Apply for Your IFTA License
To apply for IFTA stickers and your license, go to your base state's motor carrier or fuel tax portal. Most states let you apply online. You will need your federal EIN (or Social Security number for sole proprietors), your USDOT number, and information about your qualified vehicles.
There is no fee for the IFTA license itself in most states. Some states charge a small processing fee (usually $5 to $10). Once approved, your state issues one IFTA license for your entire fleet.
Step 3: Order Your IFTA Decals
After your license is approved, you order IFTA stickers for each qualified vehicle. You get two decals per vehicle, one for each side of the cab. Place them at eye level near the doors so they are visible during inspections.
How much are IFTA stickers? The cost varies by state. Most states charge between $1 and $17 per set of two. For example, Idaho charges $0.60 per set, Illinois charges $3.75, New York charges $8, and Alabama charges $17. California charges $2 per set with a $10 license fee.
Step 4: Renew Annually
IFTA licenses and decals are typically valid from January 1 through December 31 each year. You must renew before December 31 to avoid a lapse. Most states offer a grace period through the end of February for displaying new decals, but you must submit your renewal by December 31. If you don't renew on time, your license will be suspended.
You can learn more about the full IFTA program on the official IFTA website.
How to File IFTA: Quarterly Fuel Tax Reports
Once you have your IFTA license and stickers, the ongoing responsibility is filing your quarterly fuel tax report. Here is how to do IFTA quarterly reports.
What You Report
Each quarter, you report the total miles driven in each jurisdiction and the total gallons of fuel purchased in each jurisdiction. Your base state uses these numbers, along with each state's current fuel tax rate, to calculate what you owe or what you're owed.
You can find current fuel tax rates for every jurisdiction on the IFTA tax rate matrix. These rates change every quarter, so always check before filing.
IFTA Quarterly Deadlines
IFTA returns are due on the last day of the month following the end of each quarter. If that day falls on a weekend or holiday, the deadline moves to the next business day.
Q1 (January through March): Due April 30
Q2 (April through June): Due July 31
Q3 (July through September): Due October 31
Q4 (October through December): Due January 31
You must file a return every quarter, even if your trucks did not leave your home state or did not operate at all during that quarter. A "zero return" is still required.
How to File
Most states let you file IFTA online through their motor carrier portal. You enter your miles and fuel data, and the system calculates the tax. Some carriers use third-party trucking management software to prepare and file their returns.
You can also have a compliance service like TIPS handle your quarterly filings. Just send us your mileage and fuel records, and we prepare and file the return for you. For a deeper look at quarterly filing, check out our IFTA quarterly filing guide.
How to Calculate Taxable Miles for IFTA
One of the most common questions carriers have is how to calculate taxable miles for IFTA. Here is the basic process.
Total miles are all the miles your qualified vehicles drove during the quarter, in all jurisdictions (including your home state and any non-IFTA jurisdictions like Alaska and Hawaii).
Taxable miles are the miles driven in each IFTA member jurisdiction. In most cases, your taxable miles equal your total miles driven in that state. Some jurisdictions allow exemptions for certain types of miles (like miles driven on fuel trip permits), but this is rare.
To calculate the tax for each state, you take the taxable miles driven in that jurisdiction and divide by your fleet's overall miles per gallon. That gives you the gallons "consumed" in that state. You then compare that number to the gallons you actually purchased (and paid tax on) in that state. If you used more fuel than you bought there, you owe the difference. If you bought more than you used, you get a credit.
Here is a quick example. Say your truck averaged 6.0 miles per gallon for the quarter. You drove 3,000 miles in Idaho and purchased 400 gallons there. That means you consumed 500 gallons in Idaho (3,000 / 6.0) but only purchased 400 gallons. You owe tax on the 100-gallon difference at Idaho's current rate.
Your ELD or GPS system can track miles by state automatically. Keep all fuel receipts for at least four years in case of an audit. The FMCSA requires receipts that show the date, location, fuel type, number of gallons, price per gallon, and vehicle or unit number.
How Much Does IFTA Cost?
Carriers often ask "how much is IFTA?" The total cost breaks down into three parts.
IFTA License: Free in most states. A few states charge a small processing fee, typically $5 to $10.
IFTA Stickers (Decals): Range from under $1 to $17 per set of two, depending on the state. You need one set per qualified vehicle, renewed annually. How much is an IFTA sticker? In Idaho, a set costs $0.60. In New York, it's $8. In Alabama, it's $17. Most states fall in the $2 to $10 range.
IFTA Tax (Quarterly): This is the variable cost. How much IFTA tax you owe each quarter depends on how many miles you drove in each state, how much fuel you purchased in each state, and each state's fuel tax rate. Some quarters you may owe nothing. Some quarters you may get a refund. For a single truck running regular interstate routes, quarterly IFTA payments often range from a few hundred to a few thousand dollars, depending on miles and fuel purchasing patterns.
Late Penalties: If you file late or miss a deadline, the penalty is $50 or 10% of the net tax due, whichever is greater. Interest also accrues monthly on unpaid balances. If you miss multiple quarters, your IFTA license can be suspended or revoked, and reinstating it costs additional fees (typically $50).
What Happens If You Don't Have IFTA?
If you're pulled over at a weigh station or during a roadside inspection and your truck doesn't have valid IFTA stickers, or you can't produce a copy of your IFTA license, you face immediate consequences.
Officers can issue fines, and in many jurisdictions, they can place your vehicle out of service until the issue is resolved. You may also be required to purchase a temporary fuel trip permit on the spot to continue operating in that state.
Beyond fines, operating without IFTA can flag your account for an audit. IFTA audits look at your records going back four years. If your mileage and fuel records are incomplete or inaccurate, the auditor will assess taxes based on the worst-case estimate, and you will owe the difference plus penalties and interest.
A copy of your IFTA license must be in every qualified vehicle at all times. Unlike IRP cab cards (which require the original), IFTA allows you to carry copies. But the decals must be current-year originals, displayed on each side of the cab.
Let TIPS Handle Your IFTA Registration and Filings
IFTA adds real administrative weight to running a trucking operation. Between tracking miles by state, saving fuel receipts, calculating taxes, and hitting quarterly deadlines, it's easy for things to slip through the cracks. One missed filing can trigger penalties that snowball fast.
That's where Total Insight Professional Services (TIPS) comes in. We handle IFTA registration and quarterly filings for carriers across all 50 states. Whether you're a new carrier figuring out how to get IFTA for the first time or an established fleet looking for someone to manage your quarterly reports, we take care of it.
Our team files your IFTA returns accurately and on time, every quarter. We also handle your IRP registration, state permits, and ongoing DOT compliance, so everything stays in one place.