Sales tax in San Juan County, New Mexico
There is no single sales tax rate in San Juan County. It runs from 6.5% to 8.1875% depending on the exact address, because cities and special districts inside the county levy their own on top of the 4.875% state rate. The 4.875% state rate applies everywhere in the county; everything above that depends on where you are standing.
What is the sales tax rate in San Juan County?
| New Mexico state rate | 4.875% |
|---|---|
| Lowest combined rate in the county | 6.5% |
| Highest combined rate in the county | 8.1875% |
The two combined figures are the lowest and highest totals found anywhere inside the county. They are not a state rate plus a county rate added together, and adding the rows above will not reproduce them, because cities and special districts levy in between.
Why the rate here is not the whole story
New Mexico has no sales tax in the strict sense. It levies a gross receipts tax, or GRT, on the seller for the privilege of doing business, and the seller normally passes it on at the register, so it works like a sales tax for a buyer. The state charges 4.875 percent and municipalities add their own on top, but San Juan County's own levy is not one number either: it is 1.625 percent in the unincorporated remainder of the county and 1.25 percent inside a municipality, because part of the county levy applies only outside city limits. The floor of 6.5 percent is the remainder of the county, outside any municipality. The ceiling of 8.1875 percent is at Aztec and Farmington. Food for home consumption sold by a retail food store is deductible from gross receipts under Section 7-9-92 NMSA 1978, so groceries are generally not taxed at the till, while prepared food and restaurant meals are. Confirm an address on the department's own rate map before charging it.
How do I find the exact rate for an address in San Juan County?
Because the rate changes within the county, an address is the only way to get it right. Use New Mexico's own lookup. A vendor's calculator is not the state speaking.
Who has to collect sales tax in San Juan County?
A seller with a physical presence in New Mexico collects at the rate for the address where the sale takes place. A remote seller collects once it passes New Mexico's economic nexus threshold, which is a separate question from the rate and is covered on our sales tax nexus checker. Marketplace facilitators generally collect on behalf of their sellers.
How does San Juan County compare?
See New Mexico sales tax for the statewide picture, including the average local rate and what is exempt. Property tax is a separate tax with separate rules: property tax in San Juan County.
Sources
- San Juan County rates: New Mexico Taxation and Revenue Department, Gross Receipts and Compensating Tax Rate Schedule effective July 1, 2026 through June 30, 2027, the only edition in the department's Current Year Gross Receipts Tax Rate Schedules library, https://klvg4oyd4j.execute-api.us-west-2.amazonaws.com/prod/PublicFiles/34821a9573ca43e7b06dfad20f5183fd/43c5ec78-eeed-4153-997a-1d8c921b276c/Rate%20Schedule%20July1,2026%20-%20June%2030,%202027.xlsx , with the county and municipal components read from the department's City and County Enactment Rate Table for the same period, https://klvg4oyd4j.execute-api.us-west-2.amazonaws.com/prod/PublicFiles/34821a9573ca43e7b06dfad20f5183fd/2fa405b1-2a3d-43d9-b4c8-4b469523bad6/July%201,%202026%20-%20June%2030,%202027%20Enactment%20Rate%20Table.xlsx . Both are linked from the department's Tax Tables page, https://www.tax.newmexico.gov/businesses/tax-tables/
- Collected and verified September 9, 2026. Confidence: P on the rate components, P on the range (P read on a primary agency page, S strong but indirect, U unverified).