Methods, systems and computer program products for identifying customer groupings in a smart store are provided. Aspects include detecting a plurality of customers in the smart store and retrieving stored associations for at least one of the plurality of customers from a customer database based on data captured for each of the plurality of customers. Aspects also include tracking a movement of each of the plurality of customers through the smart store and updating the stored associations in the customer database between two or more of the plurality of customers that are determined to be shopping together based on their movement through the smart store. Aspects further include charging a single customer of the plurality of customers for items removed from the smart store by another customer based on the stored associations.