New Mexico Weight-Distance Tax, Besides IFTA

Weight-distance is not the fuel tax

IFTA is the agreement that nets fuel taxes among member jurisdictions. New Mexico's weight-distance tax is a tax for the use of New Mexico highways by the heavy vehicles the statute covers. The department's own page says the tax is imposed under Section 7-15A-3 NMSA 1978 and that the people who must file are the registrants, owners, and operators of the vehicles it describes. A carrier who "included New Mexico on IFTA" has reported a fuel-tax column. That column is not this return.

How to file IFTA remains the fuel return. Do it. Then do the weight-distance return if the truck is in the program. Carriers on I-40 learn the difference when a credential check asks for a permit the IFTA decal does not represent. This page is that difference. It is not a guide to lanes, receivers, or weather across the Southwest.

Which trucks owe it

The department's weight-distance page states that most motor vehicles having a declared gross weight or gross vehicle weight over 26,000 pounds, using New Mexico highways, are subject to the tax. That is the threshold this page will quote, because it is the threshold that page states. If a later statute or a later page from the department moves the number, the later page wins. Do not freeze 26,000 as a forever fact without looking. Do not replace it with a round number from memory, such as 26,001 or 33,000, unless the current instruction says so.

"Most" is the department's word. Exemptions, if any, are in the statute and the regulations, not in a hope that a private truck is excused. Read the current instruction before you decide a unit is out. A tractor that is over the stated weight and is on a New Mexico highway is the case the sentence is about.

The credential in the cab

The department says companies register and apply each year for a weight-distance tax permit for each vehicle, through the state's online system. That permit is the credential. It is not the IFTA license and it is not the IRP cab card. Carry the permit the instructions tell you to carry. A screenshot of an application that was not approved is not a permit. Annual registration is part of the sentence on that page. A permit from a prior year is not this year.

The page also says that once you are required to file electronically, you stay on electronic filing. Two or more trucks have an electronic-filing rule the page points to in the regulations. Follow that rule. A paper habit that the department no longer accepts is a late return even if you mailed it on time.

Miles and declared weight

The tax is on miles in New Mexico at the weight the return uses. An empty backhaul still has miles. Do not delete the eastbound empty because the westbound was the paying load. Declared weight is the weight you registered, not a scale ticket from the lightest trip. If you ran at a different configuration, the return's instructions, not a convenience, say how to report it.

Keep a New Mexico mile line on the same trip sheet as the IFTA miles. The two totals for New Mexico should reconcile or the difference should be explainable. A GPS total on one return and a guessed total on the other will not survive a question. Split trips on the quarter boundary the same way you split IFTA, using the due dates below.

The department's page gives the quarterly dates: April 30, July 31, October 31, and January 31, for the quarters that end the month before. It also says some taxpayers may elect to pay annually. If you have not been told you are annual, do not skip a quarter because an election might exist. File the quarter. A no-travel quarter still requires a return, according to that page. Zeros are a return. Silence is not.

A trip permit for a one-time crossing

A truck that is not in the weight-distance program and needs to cross the state uses New Mexico's trip permit for that purpose. The IFTA cab card is not the permit. Buying the permit after the miles, or at the scale because you were stopped, is not the plan. Get the permit the state currently sells, for the weight you will run, before the entry. This page will not invent the permit fee. The state's permit page has the fee. Pay that fee.

Do not collect a year of trip permits as a way to avoid the account if you are running the state every week. The annual permit and the quarterly return are the program. The trip permit is the exception for an entry that is actually one time.

Where the current rate lives

The department publishes the weight-distance rate schedule. It has been amended before, and it can be amended again. This page does not print cents per mile, because a printed rate would be the old blog the brief told the writer not to copy. Open the schedule that applies to the miles you are reporting. Save it with the return. If a vendor's calculator and the schedule disagree, the schedule wins.

Use the schedule's weight bands. Do not interpolate a rate between bands because your scale ticket fell near a line. The band the instructions assign is the band. A heavier declared weight is a higher band if that is how the schedule is built. Look. Do not remember.

The lane guide you wanted is a different article.

A practical close. On the first trip into the state after you decide to run it regularly, the registration happens before the miles, not after the quarter closes. The permit is applied for each year, for each vehicle, which means a newly added tractor is not covered by the permit of the tractor it replaced until the department says it is. Put the unit number on the application the way the plate and the IRP record show it. A nickname in dispatch and a different unit number on the permit is how the scale officer and your file disagree.

When the quarter closes, pull New Mexico miles from the same system that feeds IFTA. If the system cannot split by state, the trip sheets have to, and they have to be done before the due date rather than reconstructed from memory in the week the return is late. Empty miles stay. A relay that drops a trailer at the state line still has the miles the tractor ran inside the state. A drop that happened ten miles past the line is ten miles, not zero because the freight was "for Arizona."

The annual election, if you are eligible and you actually made it, is a filing change the department has to have accepted. Telling yourself you will file annually in December, after skipping April, July, and October, is three missing returns. If the page says some taxpayers may elect annual payment, read who qualifies before you elect. Until then, the four dates are the calendar.

Store the rate schedule you used next to the return. Next year, when the schedule is different, you can show which table this return used. You cannot show that from a number someone typed into a spreadsheet with no source. The department's page is the source for the threshold, the statute citation, the due dates, and the "file even if you did not travel" rule used here. Everything else about a specific rate is on the schedule, and this article leaves it there on purpose.

Frequently Asked Questions