New Mexico diesel tax rate is 22.9¢ per gallon for 2026. Calculate your IFTA fuel tax for New Mexico routes and compare neighboring state rates.
Calculate Your New Mexico IFTA Tax
Gallons consumed in New Mexico→
Net taxable gallons→
New Mexico tax rate (2026)→22.9¢/gal
Estimated New Mexico IFTA→
Positive = amount owed to New Mexico; negative = credit on your return.
New Mexico IFTA Rates & Trucking Overview 2026
New Mexico at 22.9¢/gal is one of the lowest diesel rates in the Southwest and significantly cheaper than neighbors on most sides. Albuquerque is the state's primary freight hub at the I-40/I-25 interchange. The state sees heavy cross-country traffic on I-40 and strong north-south freight on I-25 connecting Texas to Colorado.
Texas to the east (20.0¢) is slightly cheaper, but New Mexico is dramatically better than Arizona (26.0¢) to the west and Colorado (20.5¢) to the north is slightly better. New Mexico's oil and gas sector in the Permian Basin (southeast corner, shared with Texas) generates significant tanker and heavy equipment freight. The border crossings at Santa Teresa and El Paso handle major Mexico import/export volumes.
New Mexico IFTA — Frequently Asked Questions
What is New Mexico's IFTA diesel tax rate in 2026?
New Mexico's diesel rate is 22.9¢/gal — 4th lowest in the country. Only Mississippi (18.4¢), Oklahoma/Missouri (19.0¢), and Texas/Louisiana (20.0¢) are cheaper nationally. Arizona at 26.0¢ makes NM the smart fuel choice for I-40 westbound runs.
Who administers IFTA for New Mexico-based carriers?
New Mexico IFTA is administered by the Taxation and Revenue Department. File quarterly at tap.state.nm.us. New Mexico also has a Weight Distance Tax (WDT) for vehicles over 26,000 lbs — separate from IFTA, calculated per mile on NM roads.
Does New Mexico have a separate weight-distance tax?
Yes. New Mexico's Weight Distance Tax (WDT) applies to vehicles over 26,000 lbs and is calculated per mile driven in NM. Rates vary by vehicle weight class. This is separate from IFTA and must be filed additionally. Register at nmtax.gov before operating in NM.
What freight industries are in New Mexico?
Oil and gas (Permian Basin drilling equipment and produced water), potash mining, green chile agriculture (a significant local specialty), government/military freight for Kirtland AFB, White Sands, and Sandia National Labs, and cross-border trade at the El Paso/Juarez border complex.
Fueling tip: Texas at 20.0¢ is slightly better for eastbound runs on I-40. Arizona at 26.0¢ is worse — fill up in NM before heading west. Colorado at 20.5¢ is similar for northbound I-25 runs.