New Mexico weight distance tax, permit, one-way election and quarterly returns
Every vehicle over 26,000 lb pays a per-mile tax on New Mexico roads, rated by declared weight, on a return separate from IFTA. $79 to register, $49 per quarterly return. The state charges nothing for the permit.
Over 26,000 lb
The threshold is declared gross vehicle weight. Almost every tractor-trailer and most straight trucks with a CDL requirement are in. Lighter units pay nothing.
Rate by weight class
The per-mile rate rises in 2,000 lb steps to a little over 4 cents per mile at 78,001 lb and over. Vehicles that run empty at least 45 percent of the time get the rate cut by one third.
Quarterly, permit renewed yearly
Returns are due April 30, July 31, October 31 and January 31. The permit is per vehicle, free from the state, and renewed each calendar year.
Registration and returns
New Mexico price list
| Service | Our fee | Billing |
|---|---|---|
| New Mexico weight-distance permit | $79 | one-time |
| New Mexico quarterly return | $49 | per quarter |
| Trip or fuel permit, any state | $49 | one-time |
The weight distance tax is paid to the New Mexico Taxation and Revenue Department with each quarterly return and is not included in any Profirm fee.
How it works
- Register the vehicles
We file the weight distance tax registration with your USDOT number, vehicle list and declared gross weights, and record the one-way haul election for units that qualify.
- Permit per vehicle
New Mexico issues an electronic permit for each unit at no charge. A copy rides in the cab and the account is visible at the ports of entry on I-10, I-25 and I-40.
- Quarterly return
Each quarter you send New Mexico miles by vehicle, loaded and empty. We apply the rate for each weight class, you approve the tax, and we file and renew the permits at year end.
Where the one-way election pays
| Operation | Empty share of NM miles | Rate | Typical outcome |
|---|---|---|---|
| Dry van, I-40 through-traffic, loaded both ways | Under 45 percent | Full rate for weight class | No election; report all miles at full rate |
| Tanker or hopper, loaded out, empty back | About 50 percent | Two thirds of the full rate | Election saves one third on every NM mile |
| Oilfield or aggregate, short loaded legs, long empty returns | Over 45 percent | Two thirds of the full rate | Election applies; records must show empty legs |
| Livestock, loaded to a New Mexico feedlot, empty home | About 50 percent | Two thirds of the full rate | Election applies |
The election is per vehicle and is only as good as your empty-mile records. An auditor who cannot separate loaded from empty miles on your trip sheets or ELD export will assess the full rate back for the period. We look at your lanes before the first return and set the election where the records support it.
Get registered before the next trip west
Online requests open soon. Call or email us and we answer the same business day.
New Mexico for the occasional load
A carrier that only sees New Mexico on an occasional load can buy a temporary tax trip permit, sold at the ports of entry and online, that covers one vehicle for one trip. It costs money each time and has to be in hand before the port of entry, so the driver cannot simply roll up to the scale and hope.
Carriers that cross more than a few times a year should register. The permanent permit is free from the state, the tax per mile is the same either way, and the account is visible at every port so the truck is waved through rather than pulled in. Carriers on the Laredo to Los Angeles lane, the I-40 lane from Oklahoma City to Flagstaff and the I-25 lane from Denver to El Paso cross New Mexico weekly and belong on a permanent account.
Canadian carriers running produce or steel to Arizona and Southern California cross New Mexico on I-40 more often than they expect. We open the account with the rest of your US registrations and file the quarterly return alongside your IFTA and KYU.
What we need to open the account
- USDOT number and legal name
- Plate, VIN, year and make for each vehicle over 26,000 lb
- Declared gross weight per unit, at least the cab card weight
- Whether each unit runs empty 45 percent of the time or more
- Your IFTA account number so the two files match
Frequently asked questions
Who pays the New Mexico weight distance tax?
Any carrier operating a vehicle with a declared gross vehicle weight over 26,000 lb on New Mexico highways. It applies to New Mexico carriers and to every out-of-state and Canadian carrier from the first mile. A truck at 26,000 lb or under is not subject to the tax and does not need the permit.
How is the tax calculated?
Miles travelled in New Mexico multiplied by a rate that depends on the vehicle's declared gross weight. The rate table climbs in 2,000 lb steps from 26,001 lb to 78,001 lb and over, where the top rate is a little over 4 cents per mile. A lighter straight truck pays about a quarter of that. You declare the weight when you register, and the declared weight must be at least the registered weight on the cab card.
What is the one-way haul rate?
New Mexico reduces the rate by one third for vehicles that run empty at least 45 percent of their New Mexico miles. Tankers, dump trucks, livestock haulers and dedicated lanes that come back empty often qualify. The election is made per vehicle and you have to be able to prove the empty miles from your trip records, so the same ELD data that supports the return supports the discount. We check whether your lanes qualify before the first return.
How much does the permit cost?
New Mexico does not charge for the weight distance tax permit. Profirm charges $79 to open the account and register your vehicles, and $49 per quarterly return. The tax itself is calculated on your miles and weight and paid to the New Mexico Taxation and Revenue Department with each return.
When are the returns due?
Quarterly, on the last day of the month after the quarter ends: April 30, July 31, October 31 and January 31. Late returns draw a penalty of 2 percent of the tax per month up to 20 percent, plus interest. A return is due for every quarter the permit is active, including a zero return for quarters with no New Mexico miles.
What if I only cross New Mexico once in a while?
New Mexico sells a temporary tax trip permit at its ports of entry and online for a single trip by a single vehicle. It is meant for a truck that enters the state a few times a year. Carriers on the I-40 or I-10 lanes cross far more often than that; a permanent permit costs nothing from the state and only the tax on the miles applies. See trip permits for how fast we can issue one.
Does IFTA cover New Mexico?
IFTA covers the fuel tax in New Mexico, the same as in every other state. The weight distance tax is a second, separate tax on the miles and is not on the IFTA return. New Mexico ports of entry check for both the IFTA decals and the weight distance permit, and the state compares the miles reported on each.
Does the permit need renewing?
Yes. The weight distance tax permit is issued for the calendar year and renewed annually, per vehicle. When you add a truck mid-year it needs its own permit before it enters the state; when you sell one, it comes off the account. We track renewals with your other year-end filings so the January start is not a surprise.
Crossing New Mexico on I-40 or I-10?
Send us the vehicle list. We register the trucks, set the one-way election where your lanes support it, and put the quarterly return on our calendar.