Del Taco: $0.29 Tacos Tonight (5/5) May 5, 2010 This post may contain a link to an affiliate. See my disclosure policy for more information. Del Taco is offering $0.29 tacos tonight (5/5) at all participating locations. The best part is you can get twelve per person at that price, which means you can pretty much feed the family for under $4! Thanks, SwagGrabber!