Tracked by Evreward since 2011, Shoe Carnival offers coupons, cash back rebates and rewards, with savings as high as 65% off. Shoe Carnival discount coupons are seasonal, appearing every three to four months, but can be less valuable than similar merchants. Even when Shoe Carnival doesn't have a coupon, you can always get up to 18% cash back, and other great rewards, with every purchase.