California: use code "NOTAX" at checkout. (Order must be $250 +.) The rest of the country: No code needed. No tax will be charged.
California -Based businesses must pay sales tax to the state on product sales in California, and generally pass that cost on to their customers. At, if you use the coupon code NOTAX at checkout, you won't pay the sales tax, on your purchase of over $250. We will pay the tax!

If you are in any of the United States other than California, we won't charge you sales tax anyway - no coupon needed.