Tesco cashback can be earned online at Tesco.com.  Tesco the company brings you Tesco.com, which has become one of the leading online retailers to offer cashback in the UK. Categories include: Electricals cashback, Grocery shopping cashback, Books cashback, Entertainment cashback, Tesco Jersey (the discount CD cashback and DVD cashback store), Flowers cashback, Contact Lens Cashback, DVD Rentals, eDiets, Duel Fuel cashback, Gas Switch cashback, Electric Switch cashback and Digital Downloads.