A transaction information aggregation system includes raw transaction and enriched transaction databases. The raw transaction database comprises transaction information for a plurality of transactions, including for each transaction an account holder identifier and at least one transaction parameter. The enriched transaction database comprises an indexed transaction record for each of the plurality of transactions, each record including a plurality of search terms associated with each of the at least one transaction parameter. A transaction information processing server is in data communication with the raw transaction and enriched transaction databases and is configured to receive raw transaction information for a new transaction, parse the raw transaction information to determine, associate search terms with a characteristic for each of the at least one transaction parameter, and establish a new indexed transaction record in the enriched transaction database for the new transaction, the new indexed transaction record including the additional searchable terms.