A wallet ledger is the system of record in which a digital wallet, e-money or mobile money provider records each customer's balance and every transaction that changes it, such as top-ups, payments, transfers, fees and withdrawals. It works like a bank's customer subledger: each wallet is an account, and each transaction is posted as entries that debit one account and credit another. Well-designed wallet ledgers use double-entry bookkeeping and never overwrite entries, so that every balance can be rebuilt from the history and errors are corrected by new reversing entries. The ledger often tracks several balances for each wallet, including available, pending and held amounts. Because customers' money is actually held in bank or safeguarding accounts, the total of all wallet balances in the ledger must match those funds, which is checked through wallet reconciliation. The ledger design is covered more broadly under ledger and segregated client ledger.
Last updated 15 Nov 2026