In certain aspects, the disclosed implementations include methods and systems for providing transaction affinity merchant recommendation information performed by transaction affinity platform computing components that execute software stored in a memory. In certain aspects, the disclosed implementations may determine transaction affinity relationship data for transactions associated with a set of account records. Each account record in the set of account records may be associated with a set of users. The disclosed implementations may also determine transaction affinity relationship profiles based on transaction affinity profile parameters that are associated with the transaction affinity relationship data and first transaction data. Further, the disclosed implementations may determine one or more transaction affinity patterns based on the transaction affinity relationship data and the transaction affinity relationship profiles. In certain aspects, the disclosed implementations may further determine transaction affinity merchant recommendation information based on the one or more transaction affinity patterns.