New Hampshire IFTA Filing Walkthrough: Motor Carrier Connect
New Hampshire IFTA step by step: an EIN-only application, proof of a physical NH location, $10 decal sets and quarterly returns.
By Haul Handbook editorial team· Updated Oct 4, 2026 · 8 min read
New Hampshire runs IFTA through the Department of Safety. Since April 21, 2025 the IFTA team has shared one Motor Carrier Services office with the IRP team at the DMV building, 23 Hazen Drive, Concord. Two rules stand out: the application must be filed under an Employer Identification Number, never a Social Security number, and the carrier must prove a physical New Hampshire business location. The sourced facts render on the New Hampshire IFTA page; this walkthrough puts them in the order you will use them.
Who runs it, and how to reach them
IFTA moved from the Road Toll Bureau to DMV Motor Carrier Services, which now handles IFTA and apportioned plates side by side. The Motor Carrier Connect sign-in page lists the IFTA line as 603-271-2311 and the email as nhifta@dos.nh.gov, Monday to Friday from 8:15 a.m. to 4:15 p.m. (New Hampshire Department of Safety, "New Hampshire Motor Carrier Connect," accessed 2026-10-04, nh.motorcarrierconnect.com). The plate side is covered on the New Hampshire IRP registration page.
Step 1: check that you need a New Hampshire license
Any person based in a member jurisdiction who runs an IFTA qualified motor vehicle in two or more member jurisdictions must license under IFTA. A qualified motor vehicle is used, designed or maintained to carry persons or property and has one of these:
- Two axles and a gross or registered gross weight over 26,000 pounds (11,797 kilograms).
- Three or more axles, at any weight.
- A combination weight over 26,000 pounds.
Recreational vehicles are excluded. To license in New Hampshire you also need proof of a physical New Hampshire business location (New Hampshire DMV, "International Fuel Tax Agreement (IFTA)," accessed 2026-10-04, dmv.nh.gov). A carrier with no New Hampshire address cannot base here.
Step 2: gather the paperwork before you apply
The DMV's licensing checklist is longer than most states'. Have all of this ready:
- An IFTA vehicle inventory sheet, or a current IRP registration.
- An active or authorized USDOT number for interstate operations, showing at least as many power units as you have IFTA qualified vehicles. The New Hampshire DOT number page covers getting one.
- New Hampshire Secretary of State registration that is active or in good standing.
- A current UCR registration.
- An Employer Identification Number. Social Security numbers are not accepted.
- Proof of a physical New Hampshire business location, such as a utility bill, tax bill or lease.
- The IFTA Contact Form.
If you have been operating under your own SSN, get an EIN from the IRS first; New Hampshire will not process the application without it (New Hampshire DMV, "International Fuel Tax Agreement (IFTA)").
Step 3: apply online or on Form RT 129
You have two routes. Register, order the license and decals, renew and file online through New Hampshire Motor Carrier Connect. Or mail or drop off the signed paper application, Form RT 129, with its IFTA Vehicle Inventory Sheet and IFTA Contact Form, plus payment (New Hampshire Department of Safety, "2025 State of NH International Fuel Tax Agreement (IFTA) Application, Form RT 129").
One quirk on the paper form: the 2025 edition still prints the Road Toll Bureau remit-to address, 33 Hazen Drive, Concord, NH 03305, even though the team now sits with Motor Carrier Services. If you are unsure where a paper filing should go, call the IFTA line first.
Step 4: pay $10 a set for decals
Neither the DMV IFTA page nor Form RT 129 lists a license fee. The only charge is the decal: $10.00 per IFTA qualified vehicle for a set of two, one for each side of the cab. Make checks payable to State of NH-Road Toll, and keep the IFTA check separate. New Hampshire will not accept one check that also pays for anything else (Form RT 129).
The license runs for the calendar year and ends December 31. Carry the license or a copy in each qualified vehicle before it runs in any other jurisdiction, and put the two decals on the outside of both sides of the cab (International Fuel Tax Agreement, Inc., "IFTA Articles of Agreement," edition effective August 26, 2026, R610 and R625).
Step 5: set up Motor Carrier Connect
Online filing runs through nh.motorcarrierconnect.com. If your account already exists, request internet access through the link on the sign-in page. Once inside, the system lets you register for IFTA, order the license and decals, renew, file returns, pay and message the office. Because IRP runs on the same portal, one login covers both credentials.
Step 6: file every quarter
Returns go on Forms IFTA-100 (the return) and IFTA-101 (the schedule). Each return and full payment is due the last day of the month after the quarter closes; a due date that lands on a weekend or legal holiday moves to the next business day (N.H. Admin. Rules Saf-C 303; IFTA Articles of Agreement R960).
| Quarter | Due date |
|---|---|
| January to March | April 30 |
| April to June | July 31 |
| July to September | October 31 |
| October to December | January 31 |
Scroll sideways to see every column.
The tax rates come from the national matrix, not from New Hampshire. New Hampshire diesel this quarter is $0.2220provisional per gallon. Read each jurisdiction you ran in off the IFTA rates by state table, run your miles and gallons through the IFTA calculator, and check your records against the national how to file IFTA guide.
Step 7: know what a late return costs
The base jurisdiction may assess $50 or 10 percent of the delinquent tax, whichever is greater, for failing to file, filing late or underpaying (IFTA Articles of Agreement R1220). Form IFTA-100 carries a late filing penalty line for it.
Interest is the gap in the record. New Hampshire's own interest rate was not found on the state pages read for this guide; IFTA R1230 governs interest on delinquent taxes across member jurisdictions. Call the IFTA office for the current figure before you file late.
A carrier that falls behind can also be made to post a bond. Saf-C 303.04 requires a surety bond equal to the licensee's quarterly IFTA tax liability when a licensee fails to pay. Cash or a bank letter of credit may substitute, and the requirement is released after 4 consecutive quarters with all taxes paid (N.H. Admin. Rules Saf-C 303, accessed 2026-10-04, gc.nh.gov).
Step 8: renew before December 31
Renew through Motor Carrier Connect, or on Form RT 129 marked Renewal. Every New Hampshire IFTA license expires December 31, so plan the renewal and the new decal order for late in the year.
No published fuel trip permit
Many carriers expect a short fuel trip permit as the alternative to an IFTA license. New Hampshire documents none. No fuel trip permit fee or procedure appears on the DMV IFTA page, Form RT 129, the Saf-C 303 rules or the Motor Carrier Connect sign-in page, and prices quoted for one appear only on permit-vendor sites. The state does sell a 72-hour IRP trip permit for plates, covered with the fuel question on the New Hampshire trip and fuel permits page. If you run a qualified truck into New Hampshire without an IFTA license, ask the IFTA office at 603-271-2311 before the trip.
The legal footing
RSA 260:65-b authorizes New Hampshire to enter the fuel tax agreement, and the administrative detail sits in Part Saf-C 303 of the Road Toll Administration Rules (New Hampshire General Court, "RSA 260:65-b, Fuel Tax Agreement Authorized," accessed 2026-10-04, gc.nh.gov). If you are still setting up the business, the start a trucking company in New Hampshire page lays out where IFTA falls in the full sequence.
FAQ
Where does a New Hampshire carrier file IFTA returns?
Online in New Hampshire Motor Carrier Connect (nh.motorcarrierconnect.com), on Forms IFTA-100 and IFTA-101. Each return and full payment is due the last day of the month after the quarter closes.
What does a New Hampshire IFTA license cost?
Neither the DMV IFTA page nor Form RT 129 lists a license fee. The only charge is $10 per qualified vehicle for a set of two decals, paid by check to State of NH-Road Toll.
Can I apply for New Hampshire IFTA with my Social Security number?
No. New Hampshire takes IFTA applications only under an Employer Identification Number, and it also requires proof of a physical New Hampshire business location, such as a utility bill, tax bill or lease.
Is there a New Hampshire fuel trip permit?
None is published. No New Hampshire fuel trip permit fee or procedure appears on the DMV IFTA page, Form RT 129, the Saf-C 303 rules or the Motor Carrier Connect sign-in page. Ask the IFTA office at 603-271-2311 before the trip.