IFTA: who needs a fuel tax license, and when returns are due
Checked against official sources · Last reviewed October 6, 2026
The International Fuel Tax Agreement (IFTA) lets an interstate carrier hold one fuel tax license from its home base jurisdiction and file one quarterly return that covers every member jurisdiction. You pay all the jurisdictions' fuel taxes through that one return. [1]
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Who needs an IFTA license
Anyone based in an IFTA member jurisdiction who operates a qualified motor vehicle in two or more member jurisdictions must be licensed. A qualified motor vehicle is used, designed or maintained to carry people or property and has:
- two axles and a gross or registered gross weight over 26,000 pounds, or
- three or more axles, whatever the weight, or
- a combination weighing over 26,000 pounds.
Recreational vehicles don't count. Note that this is a different line from the 10,001-pound test for a USDOT Number, so a smaller truck can need a USDOT Number but not IFTA.
Instead of an IFTA license, you can pay fuel use tax trip by trip with trip permits. [1][2]
Your base jurisdiction
You apply for the license with your base jurisdiction. That's the member jurisdiction where your qualified vehicles are based for registration, where your operational control and records are kept or can be made available, and where your fleet does some of its driving. Each licensee has one license and one base jurisdiction, which handles your account for all member jurisdictions. [1]
License and decals
Your base jurisdiction issues a license and two decals for each qualified vehicle. The decals go on the outside of both sides of the cab. Keep a copy of the license, on paper or as an electronic image, in each vehicle. The license runs for the calendar year and ends December 31. [1]
Quarterly returns and due dates
Each return covers the previous calendar quarter, and you must file it even if you didn't operate or used no taxable fuel. The return and full payment are due the last day of the month after the quarter ends. If that day is a Saturday, Sunday or legal holiday, it's due the next business day.
If you drove under 5,000 miles in all member jurisdictions other than your base jurisdiction over 12 months, you can ask to report once a year instead (due January 31), with your base jurisdiction's approval.
| Quarter | Months | Due |
|---|---|---|
| Q1 | January to March | April 30 |
| Q2 | April to June | July 31 |
| Q3 | July to September | October 31 |
| Q4 | October to December | January 31 |
Sources: [1]
Penalties and interest
For a late, missing or underpaid return, the base jurisdiction may charge a penalty of $50 or 10% of the delinquent tax, whichever is greater. Interest on late tax for U.S.-based fleets is 2 percentage points above the IRS underpayment rate, accruing monthly.
If you should have had a license and didn't, a jurisdiction can assess the fuel taxes due for all member jurisdictions. [1]
Records to keep
Keep the records of your IFTA-reportable operations for four years from the date the return was due or filed, whichever is later. In an IFTA audit, the burden of proof is on you.
You get credit for tax-paid fuel only when it went into a qualified vehicle's tank and the price included fuel tax, so keep your receipts. [1][3]
Renewing for 2027
2027 IFTA renewals must be filed with your base jurisdiction before the end of 2026. Renewing carriers then have a two-month grace period, January and February, to put the new license and decals on their trucks. [4]
Common questions
Do I need IFTA for a hot shot pickup and trailer?
Only if it's a qualified motor vehicle you run in two or more member jurisdictions. A two-axle truck counts if it, or its combination, weighs over 26,000 pounds. A vehicle with three or more axles counts regardless of weight. [1]
When are IFTA returns due?
April 30, July 31, October 31 and January 31, or the next business day if the date falls on a weekend or legal holiday. [1]
Do I have to file if I didn't drive this quarter?
Yes. Returns are required even if you had no operations or used no taxable fuel. [1]
Where do the IFTA decals go?
On the outside of both sides of the cab. You get two decals per qualified vehicle. [1]
What's the penalty for filing late?
$50 or 10% of the delinquent tax, whichever is greater, plus interest. [1]
How long do I keep IFTA records?
Four years from the return's due date or filing date, whichever is later. [3]
Sources (4)
- IFTA Articles of Agreement (effective August 2026; file dated 08-26-26) (accessed Oct 6, 2026)
- eCFR - 49 CFR 390.5 / 390.5T Definitions (commercial motor vehicle), text via eCFR API as of 2026-10-01 (accessed Oct 6, 2026)
- IFTA Procedures Manual (file dated 08-26-26) (accessed Oct 6, 2026)
- IFTA, Inc. memorandum - IFTA Credential Grace Period (Oct 1, 2026) (accessed Oct 6, 2026)