noun
subsidiary ledger
Accounting term for a detailed ledger that supports a control account in the general ledger.
補助元帳には取引先ごとの売掛金が記録されている。
The subsidiary ledger records accounts receivable by customer.
総勘定元帳 is the general ledger, while 補助元帳 is a subsidiary ledger that provides details for a specific control account.
Compound of 補助 (assistance, support) and 元帳 (ledger).