Abstract: Payment instruments used on behalf of a sponsor may be restricted from use at certain locations. The sponsor may indicate that use of the payment instrument at either specific merchants or certain categories of merchants is not in accordance with the sponsor's goals or values. A system evaluates every transaction request to determine if the personal account number of the payment instrument is associated with the sponsor. If so, the transaction may be further screened to determine if the transaction is from a location to be blocked, in which case a flag may be added to the transaction indicating it is from blocked location. An issuer of the payment instrument may then determine whether to approve or deny the transaction. A tool may generate a dataset of locations and/or merchant categories for use in identifying blocked locations.