DeBora, this is all the information I could find.
Friday through Sunday August 5th through 7th, "Back to School Tax-Free Holiday".
It is VOLUNTARY for retailers, and if they choose not to participate they can.
NONTAX Items include
Clothing and footwear of 100.00 or less. School supplies such as pens and paper used in a classroom setting. Computers of 1,000 or less, and computer equipment of 500.00 or less. Price can is on each individual item and not the total purchased.
Complete list of items found at
www.state.nm.us/tax or call 505-827=0908.
I know Las Cruses has the college there, so there will probably be participation down there.
Good luck!