IFTA and IRP Explained: A Plain-English Guide for New Trucking Companies

This is general information, not legal, tax, financial, medical or security advice. Rules and prices change, so confirm details with the official sources linked below or a qualified professional.

IFTA and IRP are two separate agreements that let a trucking company register and pay taxes in one "base" state while operating across many. IFTA (the International Fuel Tax Agreement) covers fuel taxes: you file one quarterly return and carry decals. IRP (the International Registration Plan) covers vehicle registration: you get one apportioned plate and cab card and pay fees split by the miles you run in each jurisdiction. If your truck qualifies and crosses state lines, you almost certainly need both.

Both programs run on the same principle: accurate distance records by jurisdiction. Get your mileage tracking right from day one and both become routine.

This is general information, not tax advice. Your base jurisdiction's rules control; confirm details with them.

Key takeaways

• IFTA is fuel tax; IRP is registration. Different credentials, different payments, same mileage data.
• Both apply to "qualified" vehicles: two axles over 26,000 lb, three or more axles at any weight, or a combination over 26,000 lb.
• You deal only with your base jurisdiction, which handles your account on behalf of the other states and provinces.
• IFTA returns are quarterly: April 30, July 31, October 31 and January 31, even with no activity.
• Keep records at least four years. Missing fuel receipts or mileage records can lead to disallowed credits and assessments.

IFTA vs IRP at a glance

Does your truck qualify?

Both programs use nearly identical definitions. Under IFTA's Articles of Agreement, a qualified motor vehicle is used, designed or maintained to transport persons or property and:

1. Has two axles and a gross vehicle weight or registered gross vehicle weight exceeding 26,000 pounds (11,797 kg); or
2. Has three or more axles, regardless of weight; or
3. Is used in combination when the combination's weight exceeds 26,000 pounds.

Recreational vehicles are excluded. IRP's "apportionable vehicle" test is closely aligned: IRP, Inc. says commercial vehicles with a combined gross weight over 26,000 pounds that travel in two or more jurisdictions are likely registered under the Plan. Your base jurisdiction makes the final call on edge cases.

A common edge case is a two-axle pickup pulling a hotshot trailer. Under the third test, what matters is the combination's gross or registered weight: over 26,000 pounds and it qualifies. Check the registered and gross weights on your paperwork before assuming either way.

Your base jurisdiction

You do not file with every state. You file with your base jurisdiction, which IFTA describes as where your qualified vehicles are registered, where you have some travel, and where operational control and records are kept or made available. Your base jurisdiction:

• Processes your IFTA license application and IRP registration
• Issues your IFTA license, decals, apportioned plates and cab cards
• Receives your quarterly IFTA returns and payments and distributes the money to other jurisdictions
• Audits your records on behalf of all member jurisdictions

This is one reason to choose your business location carefully when you start a trucking company. Your base needs a real place of business and records, not just a mailing address.

How IRP works for a new carrier

1. Get your USDOT number and documents ready. Have your USDOT number, EIN, title or lease and proof of business location on hand; your base jurisdiction's IRP office lists exactly what it requires. See how to get a USDOT number and MC authority.
2. Proof of HVUT payment. If your truck's taxable gross weight is 55,000 pounds or more, states generally require the IRS-stamped Schedule 1 from Form 2290 before registering it. The IRS notes that a bill of sale showing purchase within the last 60 days can substitute temporarily, but you still must file.
3. Apply with your base jurisdiction's IRP office. You will declare the jurisdictions you plan to run and the weights you will operate at.
4. Pay apportioned fees. Fees are based on the percentage of distance traveled in each jurisdiction, at each jurisdiction's rates. A brand-new fleet has no distance history yet, so ask your base jurisdiction how it calculates first-year fees.
5. Receive your apportioned plate and cab card. The cab card lists the jurisdictions and weights you are registered for. Keep it in the truck.
6. Renew on your jurisdiction's schedule, reporting actual distance for the period it specifies.

Weight declarations matter beyond IRP: the IRS instructions for Form 2290 say your taxable gross weight can be no less than the highest gross weight declared for the vehicle in any state.

How IFTA works, step by step

1. Apply for an IFTA license with your base jurisdiction once your truck qualifies and you plan to operate in two or more jurisdictions.
2. Place a copy of the license in each qualified vehicle and display the two decals issued per vehicle as your jurisdiction instructs.
3. Track every mile by jurisdiction from your first trip, using your ELD or GPS data plus trip records.
4. Keep every fuel receipt, showing date, gallons, fuel type, seller and location. Bulk fuel needs separate purchase and withdrawal records.
5. At quarter end, total miles and gallons by jurisdiction. Your fleet miles per gallon determines how many taxable gallons you "used" in each jurisdiction.
6. Calculate tax due or credit per jurisdiction: tax on gallons used there minus tax already paid on gallons bought there. Your base jurisdiction provides the current rates; IFTA, Inc. also publishes a tax rate matrix.
7. File one return and pay the net amount to your base jurisdiction by the due date.

IFTA quarterly calendar

If a due date falls on a weekend or legal holiday, the next business day applies. File even if you did not operate during the quarter.

Watch for temporary fuel tax relief

States sometimes declare fuel tax holidays or dyed-diesel waivers, and IFTA, Inc. warns that these are narrow. In its October 2026 carrier guidance, it notes that a penalty waiver is not automatically a tax exemption, that a gasoline holiday may not apply to diesel, and that you must follow each notice's instructions for reporting total miles, taxable miles and tax-paid gallons. When relief applies, keep the notice with your quarterly records.

Records to keep

IFTA, Inc.'s carrier checklist includes:

• Vehicle identification, trip dates, origin, destination and route
• Odometer or other acceptable distance records, with distance by jurisdiction
• Fuel purchase dates, quantities, fuel type, seller details and receipts
• Bulk fuel purchases and withdrawals, if applicable
• Monthly and quarterly summaries that reconcile with your return
• Support for any exempt distance or temporary relief claimed

Keep them at least four years from the return due date or filing date, whichever is later. An ELD can capture much of the distance data, but you still need to reconcile it with fuel receipts each quarter.

Common mistakes new carriers make

• Not filing a zero return for a quarter with no operations
• Losing fuel receipts, which means paying tax again on fuel you already paid tax on at the pump
• Mileage gaps from personal conveyance, yard moves or ELD outages that aren't documented
• Declaring a weight on IRP that doesn't match your Form 2290 category
• Using a mail-drop address as a base without real records or operations there
• Waiting until the deadline to reconcile a whole quarter of receipts

IFTA and IRP checklist

• [ ] Confirmed your truck is a qualified/apportionable vehicle
• [ ] Chose a base jurisdiction with a real place of business and records
• [ ] USDOT number, EIN and ownership documents ready
• [ ] Form 2290 filed and stamped Schedule 1 saved (trucks 55,000 lb+)
• [ ] IRP apportioned plate and cab card received; cab card in the truck
• [ ] IFTA license copy and two decals on each qualified truck
• [ ] Mileage by jurisdiction tracked from the first trip
• [ ] Every fuel receipt saved and logged weekly
• [ ] IFTA due dates in your calendar: Apr 30, Jul 31, Oct 31, Jan 31
• [ ] Records retained at least four years

Add IRP plates and IFTA to your budget using the trucking company startup costs breakdown.

Next steps

• Contact your base jurisdiction's IRP and IFTA offices; IFTA, Inc.'s carrier page lists each jurisdiction's contact.
• Set up a weekly routine to log fuel receipts and check ELD mileage by state.
• Calendar all four IFTA due dates and your IRP renewal now.
• Make sure your 2290 weight category matches the weights you declare for IRP.
• If you want help connecting ELD, fuel card and accounting data into one reporting workflow, see our advisory service.

Sources

• IFTA, Inc., Carrier Information: https://www.iftach.org/carriers/
• International Registration Plan, Inc.: https://www.irponline.org/
• IRS, Instructions for Form 2290 (07/2026): https://www.irs.gov/instructions/i2290
• FMCSA, Do I Need a USDOT Number?: https://www.fmcsa.dot.gov/registration/do-i-need-usdot-number

Keep reading