no, not because of tax, because if one is priced full and one is priced 0, the second coupon will probably beep and require cashier override (tho' this doesn't happen at CVS - seems to at RA, or at least some of them), which means your cashier might not want to take a coupon on the free one, a big YMMV...if they are both priced half off (which is what food lion does), then the second one won't beep & it should be easier to do...that's all...